Files
consensus/coverage.html
zeekay 4bddc6ffe7 feat: remove Snow consensus and achieve 100% test pass rate
- Removed all Snow consensus code and dependencies
- Replaced snow.Context with consensuscontext.Context
- Updated all imports and references
- Added comprehensive test suites for core packages
- Fixed all build errors and test failures
- Achieved 100% test pass rate (21 packages passing)
- Improved test coverage to 30%

Breaking changes:
- Removed snow package entirely
- Changed VM interface to use VMState instead of snow.State
- Updated ChainContext structure

Tests added:
- core/app_error_test.go: 100% coverage
- core/bootstrap_test.go: comprehensive concurrent tests
- core/health_test.go: full integration tests
- validators/validators_test.go: complete interface tests
- version/version_test.go: 100% coverage
- codec/codec_test.go: marshal/unmarshal tests
- context/context_test.go: all functions tested
2025-09-16 13:34:59 -05:00

9649 lines
341 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>consensus: Go Coverage Report</title>
<style>
body {
background: black;
color: rgb(80, 80, 80);
}
body, pre, #legend span {
font-family: Menlo, monospace;
font-weight: bold;
}
#topbar {
background: black;
position: fixed;
top: 0; left: 0; right: 0;
height: 42px;
border-bottom: 1px solid rgb(80, 80, 80);
}
#content {
margin-top: 50px;
}
#nav, #legend {
float: left;
margin-left: 10px;
}
#legend {
margin-top: 12px;
}
#nav {
margin-top: 10px;
}
#legend span {
margin: 0 5px;
}
.cov0 { color: rgb(192, 0, 0) }
.cov1 { color: rgb(128, 128, 128) }
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<span>not tracked</span>
<span class="cov0">not covered</span>
<span class="cov8">covered</span>
</div>
</div>
<div id="content">
<pre class="file" id="file0" style="display: none">// Package consensus provides the Lux consensus implementation.
package consensus
import (
"context"
"github.com/luxfi/ids"
)
// Acceptor interface for consensus acceptors
type Acceptor interface {
// Accept processes an accepted item
Accept(ctx context.Context, containerID ids.ID, container []byte) error
}
// BasicAcceptor is a simple implementation of the Acceptor interface
type BasicAcceptor struct {
accepted map[ids.ID][]byte
}
// NewBasicAcceptor creates a new basic acceptor
func NewBasicAcceptor() *BasicAcceptor <span class="cov0" title="0">{
return &amp;BasicAcceptor{
accepted: make(map[ids.ID][]byte),
}
}</span>
// Accept marks an item as accepted
func (a *BasicAcceptor) Accept(ctx context.Context, containerID ids.ID, container []byte) error <span class="cov0" title="0">{
a.accepted[containerID] = container
return nil
}</span>
</pre>
<pre class="file" id="file1" style="display: none">package choices
// Status represents the status of a block
type Status uint8
const (
Unknown Status = iota
Processing
Rejected
Accepted
)
// String returns string representation
func (s Status) String() string <span class="cov0" title="0">{
switch s </span>{
case Unknown:<span class="cov0" title="0">
return "Unknown"</span>
case Processing:<span class="cov0" title="0">
return "Processing"</span>
case Rejected:<span class="cov0" title="0">
return "Rejected"</span>
case Accepted:<span class="cov0" title="0">
return "Accepted"</span>
default:<span class="cov0" title="0">
return "Invalid"</span>
}
}
</pre>
<pre class="file" id="file2" style="display: none">// Package main provides the bench CLI tool for consensus benchmarking
package main
import (
"context"
"flag"
"fmt"
"os"
"time"
"github.com/luxfi/consensus/config"
"github.com/luxfi/consensus/engine/chain"
"github.com/luxfi/consensus/engine/dag"
"github.com/luxfi/consensus/engine/pq"
"github.com/luxfi/ids"
)
func main() <span class="cov0" title="0">{
var (
engine = flag.String("engine", "all", "Engine to benchmark (chain, dag, pq, all)")
network = flag.String("network", "local", "Network configuration (mainnet, testnet, local)")
duration = flag.Duration("duration", 10*time.Second, "Benchmark duration")
blocks = flag.Int("blocks", 1000, "Number of blocks to process")
parallel = flag.Int("parallel", 1, "Number of parallel workers")
useZMQ = flag.Bool("zmq", false, "Use ZMQ transport (if available)")
verbose = flag.Bool("verbose", false, "Verbose output")
help = flag.Bool("help", false, "Show help message")
)
flag.Parse()
if *help </span><span class="cov0" title="0">{
printHelp()
os.Exit(0)
}</span>
// Get network configuration
<span class="cov0" title="0">params := getNetworkParams(*network)
ctx, cancel := context.WithTimeout(context.Background(), *duration)
defer cancel()
fmt.Printf("Benchmarking %s engine(s) with %s configuration\n", *engine, *network)
fmt.Printf("Duration: %s, Blocks: %d, Parallel: %d, ZMQ: %v\n\n", *duration, *blocks, *parallel, *useZMQ)
switch *engine </span>{
case "chain":<span class="cov0" title="0">
benchmarkChain(ctx, params, *blocks, *parallel, *verbose)</span>
case "dag":<span class="cov0" title="0">
benchmarkDAG(ctx, params, *blocks, *parallel, *verbose)</span>
case "pq":<span class="cov0" title="0">
benchmarkPQ(ctx, params, *blocks, *parallel, *verbose)</span>
case "all":<span class="cov0" title="0">
benchmarkChain(ctx, params, *blocks, *parallel, *verbose)
fmt.Println()
benchmarkDAG(ctx, params, *blocks, *parallel, *verbose)
fmt.Println()
benchmarkPQ(ctx, params, *blocks, *parallel, *verbose)</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown engine: %s\n", *engine)
os.Exit(1)</span>
}
}
func printHelp() <span class="cov0" title="0">{
fmt.Println("Consensus Benchmark Tool")
fmt.Println("\nUsage: bench [options]")
fmt.Println("\nOptions:")
fmt.Println(" -engine string Engine to benchmark (default: all)")
fmt.Println(" Options: chain, dag, pq, all")
fmt.Println(" -network string Network configuration (default: local)")
fmt.Println(" Options: mainnet, testnet, local")
fmt.Println(" -duration time Benchmark duration (default: 10s)")
fmt.Println(" -blocks int Number of blocks to process (default: 1000)")
fmt.Println(" -parallel int Number of parallel workers (default: 1)")
fmt.Println(" -zmq Use ZMQ transport if available")
fmt.Println(" -verbose Verbose output")
fmt.Println(" -help Show this help message")
fmt.Println("\nExamples:")
fmt.Println(" bench # Benchmark all engines")
fmt.Println(" bench -engine chain -blocks 5000 # Benchmark chain engine with 5000 blocks")
fmt.Println(" bench -engine dag -parallel 4 # Benchmark DAG with 4 workers")
fmt.Println(" bench -network mainnet -duration 30s # Use mainnet config for 30s")
}</span>
func getNetworkParams(network string) config.Parameters <span class="cov0" title="0">{
switch network </span>{
case "mainnet":<span class="cov0" title="0">
return config.MainnetParams()</span>
case "testnet":<span class="cov0" title="0">
return config.TestnetParams()</span>
case "local":<span class="cov0" title="0">
return config.LocalParams()</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown network: %s, using local\n", network)
return config.LocalParams()</span>
}
}
func benchmarkChain(ctx context.Context, params config.Parameters, blocks int, parallel int, verbose bool) <span class="cov0" title="0">{
fmt.Println("=== Chain Engine Benchmark ===")
engine := chain.New()
start := time.Now()
if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("Failed to start chain engine: %v\n", err)
return
}</span>
<span class="cov0" title="0">processed := 0
errors := 0
for i := 0; i &lt; blocks &amp;&amp; ctx.Err() == nil; i++ </span><span class="cov0" title="0">{
blockID := ids.GenerateTestID()
err := engine.GetBlock(ctx, ids.EmptyNodeID, 0, blockID)
if err != nil </span><span class="cov0" title="0">{
errors++
if verbose </span><span class="cov0" title="0">{
fmt.Printf("Error processing block %d: %v\n", i, err)
}</span>
} else<span class="cov0" title="0"> {
processed++
}</span>
<span class="cov0" title="0">if verbose &amp;&amp; i%100 == 0 </span><span class="cov0" title="0">{
fmt.Printf("Processed %d blocks...\n", i)
}</span>
}
<span class="cov0" title="0">elapsed := time.Since(start)
tps := float64(processed) / elapsed.Seconds()
fmt.Printf("Results:\n")
fmt.Printf(" Processed: %d blocks\n", processed)
fmt.Printf(" Errors: %d\n", errors)
fmt.Printf(" Time: %s\n", elapsed)
fmt.Printf(" TPS: %.2f blocks/sec\n", tps)
_ = engine.Stop(ctx)</span>
}
func benchmarkDAG(ctx context.Context, params config.Parameters, blocks int, parallel int, verbose bool) <span class="cov0" title="0">{
fmt.Println("=== DAG Engine Benchmark ===")
engine := dag.New()
start := time.Now()
if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("Failed to start DAG engine: %v\n", err)
return
}</span>
<span class="cov0" title="0">processed := 0
errors := 0
for i := 0; i &lt; blocks &amp;&amp; ctx.Err() == nil; i++ </span><span class="cov0" title="0">{
vertexID := ids.GenerateTestID()
_, err := engine.GetVtx(ctx, vertexID)
if err != nil </span><span class="cov0" title="0">{
errors++
if verbose </span><span class="cov0" title="0">{
fmt.Printf("Error processing vertex %d: %v\n", i, err)
}</span>
} else<span class="cov0" title="0"> {
processed++
}</span>
<span class="cov0" title="0">if verbose &amp;&amp; i%100 == 0 </span><span class="cov0" title="0">{
fmt.Printf("Processed %d vertices...\n", i)
}</span>
}
<span class="cov0" title="0">elapsed := time.Since(start)
tps := float64(processed) / elapsed.Seconds()
fmt.Printf("Results:\n")
fmt.Printf(" Processed: %d vertices\n", processed)
fmt.Printf(" Errors: %d\n", errors)
fmt.Printf(" Time: %s\n", elapsed)
fmt.Printf(" TPS: %.2f vertices/sec\n", tps)
_ = engine.Shutdown(ctx)</span>
}
func benchmarkPQ(ctx context.Context, params config.Parameters, blocks int, parallel int, verbose bool) <span class="cov0" title="0">{
fmt.Println("=== Post-Quantum Engine Benchmark ===")
engine := pq.New()
start := time.Now()
if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("Failed to start PQ engine: %v\n", err)
return
}</span>
<span class="cov0" title="0">processed := 0
errors := 0
proofSizes := []int{}
for i := 0; i &lt; blocks &amp;&amp; ctx.Err() == nil; i++ </span><span class="cov0" title="0">{
blockID := ids.GenerateTestID()
proof, err := engine.GenerateQuantumProof(ctx, blockID)
if err != nil </span><span class="cov0" title="0">{
errors++
if verbose </span><span class="cov0" title="0">{
fmt.Printf("Error generating proof %d: %v\n", i, err)
}</span>
} else<span class="cov0" title="0"> {
processed++
proofSizes = append(proofSizes, len(proof))
}</span>
<span class="cov0" title="0">if verbose &amp;&amp; i%100 == 0 </span><span class="cov0" title="0">{
fmt.Printf("Generated %d proofs...\n", i)
}</span>
}
<span class="cov0" title="0">elapsed := time.Since(start)
tps := float64(processed) / elapsed.Seconds()
// Calculate average proof size
avgProofSize := 0
if len(proofSizes) &gt; 0 </span><span class="cov0" title="0">{
sum := 0
for _, size := range proofSizes </span><span class="cov0" title="0">{
sum += size
}</span>
<span class="cov0" title="0">avgProofSize = sum / len(proofSizes)</span>
}
<span class="cov0" title="0">fmt.Printf("Results:\n")
fmt.Printf(" Generated: %d proofs\n", processed)
fmt.Printf(" Errors: %d\n", errors)
fmt.Printf(" Time: %s\n", elapsed)
fmt.Printf(" TPS: %.2f proofs/sec\n", tps)
fmt.Printf(" Avg Proof: %d bytes\n", avgProofSize)
_ = engine.Stop(ctx)</span>
}
func init() {<span class="cov0" title="0">
// As of Go 1.20, rand.Seed is deprecated - random seeding is automatic
// No manual seeding required for better randomness
}</span>
</pre>
<pre class="file" id="file3" style="display: none">// Package main provides the checker CLI tool for consensus health checking
package main
import (
"context"
"flag"
"fmt"
"os"
"time"
"github.com/luxfi/consensus"
"github.com/luxfi/consensus/config"
)
func main() <span class="cov0" title="0">{
var (
engine = flag.String("engine", "all", "Engine to check (chain, dag, pq, all)")
timeout = flag.Duration("timeout", 5*time.Second, "Health check timeout")
verbose = flag.Bool("verbose", false, "Verbose output")
help = flag.Bool("help", false, "Show help message")
)
flag.Parse()
if *help </span><span class="cov0" title="0">{
printHelp()
os.Exit(0)
}</span>
<span class="cov0" title="0">ctx, cancel := context.WithTimeout(context.Background(), *timeout)
defer cancel()
exitCode := 0
switch *engine </span>{
case "chain":<span class="cov0" title="0">
if !checkEngine(ctx, "chain", consensus.NewChainEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
case "dag":<span class="cov0" title="0">
if !checkEngine(ctx, "dag", consensus.NewDAGEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
case "pq":<span class="cov0" title="0">
if !checkEngine(ctx, "pq", consensus.NewPQEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
case "all":<span class="cov0" title="0">
if !checkEngine(ctx, "chain", consensus.NewChainEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
<span class="cov0" title="0">if !checkEngine(ctx, "dag", consensus.NewDAGEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
<span class="cov0" title="0">if !checkEngine(ctx, "pq", consensus.NewPQEngine(), *verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown engine: %s\n", *engine)
os.Exit(1)</span>
}
// Check configurations
<span class="cov0" title="0">if !checkConfigurations(*verbose) </span><span class="cov0" title="0">{
exitCode = 1
}</span>
<span class="cov0" title="0">if exitCode == 0 </span><span class="cov0" title="0">{
fmt.Println("\n✓ All health checks passed")
}</span> else<span class="cov0" title="0"> {
fmt.Println("\n✗ Some health checks failed")
}</span>
<span class="cov0" title="0">os.Exit(exitCode)</span>
}
func printHelp() <span class="cov0" title="0">{
fmt.Println("Consensus Health Checker")
fmt.Println("\nUsage: checker [options]")
fmt.Println("\nOptions:")
fmt.Println(" -engine string Engine to check (default: all)")
fmt.Println(" Options: chain, dag, pq, all")
fmt.Println(" -timeout duration Health check timeout (default: 5s)")
fmt.Println(" -verbose Verbose output")
fmt.Println(" -help Show this help message")
fmt.Println("\nExamples:")
fmt.Println(" checker # Check all engines")
fmt.Println(" checker -engine chain # Check only chain engine")
fmt.Println(" checker -verbose # Verbose output for debugging")
}</span>
func checkEngine(ctx context.Context, name string, engine consensus.Engine, verbose bool) bool <span class="cov0" title="0">{
fmt.Printf("Checking %s engine... ", name)
// Start engine
if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Failed to start: %v\n", err)
return false
}</span>
<span class="cov0" title="0">defer func() </span><span class="cov0" title="0">{ _ = engine.Stop(ctx) }</span>()
// Check bootstrapped
<span class="cov0" title="0">if !engine.IsBootstrapped() </span><span class="cov0" title="0">{
fmt.Println("✗ Not bootstrapped")
return false
}</span>
// Perform health check
<span class="cov0" title="0">health, err := engine.HealthCheck(ctx)
if err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Health check failed: %v\n", err)
return false
}</span>
<span class="cov0" title="0">fmt.Println("✓")
if verbose </span><span class="cov0" title="0">{
fmt.Printf(" Health data: %+v\n", health)
}</span>
<span class="cov0" title="0">return true</span>
}
func checkConfigurations(verbose bool) bool <span class="cov0" title="0">{
fmt.Println("\nChecking configurations...")
configs := map[string]config.Parameters{
"mainnet": config.MainnetParams(),
"testnet": config.TestnetParams(),
"local": config.LocalParams(),
"xchain": config.XChainParams(),
}
allValid := true
for name, cfg := range configs </span><span class="cov0" title="0">{
fmt.Printf(" %s: ", name)
if err := cfg.Valid(); err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ %v\n", err)
allValid = false
}</span> else<span class="cov0" title="0"> {
fmt.Println("✓")
if verbose </span><span class="cov0" title="0">{
fmt.Printf(" K=%d, Alpha=%.2f, Beta=%d, BlockTime=%s\n",
cfg.K, cfg.Alpha, cfg.Beta, cfg.BlockTime)
}</span>
}
}
<span class="cov0" title="0">return allValid</span>
}
</pre>
<pre class="file" id="file4" style="display: none">// Package main provides the main consensus CLI tool
package main
import (
"context"
"flag"
"fmt"
"os"
"time"
"github.com/luxfi/consensus"
"github.com/luxfi/consensus/config"
)
func main() <span class="cov0" title="0">{
var (
engine = flag.String("engine", "chain", "Consensus engine (chain, dag, pq)")
network = flag.String("network", "mainnet", "Network configuration")
action = flag.String("action", "info", "Action to perform (info, test, health)")
help = flag.Bool("help", false, "Show help message")
)
flag.Parse()
if *help </span><span class="cov0" title="0">{
printHelp()
os.Exit(0)
}</span>
<span class="cov0" title="0">switch *action </span>{
case "info":<span class="cov0" title="0">
showInfo(*engine, *network)</span>
case "test":<span class="cov0" title="0">
testEngine(*engine, *network)</span>
case "health":<span class="cov0" title="0">
checkHealth(*engine)</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown action: %s\n", *action)
os.Exit(1)</span>
}
}
func printHelp() <span class="cov0" title="0">{
fmt.Println("Lux Consensus CLI")
fmt.Println("\nUsage: consensus [options]")
fmt.Println("\nOptions:")
fmt.Println(" -engine string Consensus engine (default: chain)")
fmt.Println(" Options: chain, dag, pq")
fmt.Println(" -network string Network configuration (default: mainnet)")
fmt.Println(" Options: mainnet, testnet, local")
fmt.Println(" -action string Action to perform (default: info)")
fmt.Println(" Options: info, test, health")
fmt.Println(" -help Show this help message")
fmt.Println("\nExamples:")
fmt.Println(" consensus # Show chain engine info")
fmt.Println(" consensus -engine dag -action test # Test DAG engine")
fmt.Println(" consensus -action health # Check engine health")
}</span>
func showInfo(engineType, network string) <span class="cov0" title="0">{
fmt.Printf("=== Consensus Engine Info ===\n")
fmt.Printf("Engine: %s\n", engineType)
fmt.Printf("Network: %s\n", network)
params := getNetworkParams(network)
fmt.Printf("\nParameters:\n")
fmt.Printf(" K (sample size): %d\n", params.K)
fmt.Printf(" Alpha (quorum): %.2f\n", params.Alpha)
fmt.Printf(" Beta (decision rounds): %d\n", params.Beta)
fmt.Printf(" Block Time: %s\n", params.BlockTime)
fmt.Printf(" Round Timeout: %s\n", params.RoundTO)
switch engineType </span>{
case "chain":<span class="cov0" title="0">
fmt.Println("\nChain Engine:")
fmt.Println(" - Linear blockchain consensus")
fmt.Println(" - Sequential block processing")
fmt.Println(" - Optimized for ordered transactions")</span>
case "dag":<span class="cov0" title="0">
fmt.Println("\nDAG Engine:")
fmt.Println(" - Directed Acyclic Graph consensus")
fmt.Println(" - Parallel transaction processing")
fmt.Println(" - High throughput optimization")</span>
case "pq":<span class="cov0" title="0">
fmt.Println("\nPost-Quantum Engine:")
fmt.Println(" - Quantum-resistant cryptography")
fmt.Println(" - ML-DSA-65 algorithm")
fmt.Println(" - Future-proof security")</span>
}
}
func testEngine(engineType, network string) <span class="cov0" title="0">{
fmt.Printf("Testing %s engine with %s configuration...\n", engineType, network)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
var engine consensus.Engine
switch engineType </span>{
case "chain":<span class="cov0" title="0">
engine = consensus.NewChainEngine()</span>
case "dag":<span class="cov0" title="0">
engine = consensus.NewDAGEngine()</span>
case "pq":<span class="cov0" title="0">
engine = consensus.NewPQEngine()</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown engine: %s\n", engineType)
os.Exit(1)</span>
}
// Start engine
<span class="cov0" title="0">if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Failed to start: %v\n", err)
os.Exit(1)
}</span>
<span class="cov0" title="0">defer func() </span><span class="cov0" title="0">{ _ = engine.Stop(ctx) }</span>()
// Check bootstrapped
<span class="cov0" title="0">if !engine.IsBootstrapped() </span><span class="cov0" title="0">{
fmt.Println("✗ Not bootstrapped")
os.Exit(1)
}</span>
// Health check
<span class="cov0" title="0">health, err := engine.HealthCheck(ctx)
if err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Health check failed: %v\n", err)
os.Exit(1)
}</span>
<span class="cov0" title="0">fmt.Println("✓ Engine test passed")
fmt.Printf(" Health: %+v\n", health)</span>
}
func checkHealth(engineType string) <span class="cov0" title="0">{
fmt.Printf("Checking %s engine health...\n", engineType)
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
var engine consensus.Engine
switch engineType </span>{
case "chain":<span class="cov0" title="0">
engine = consensus.NewChainEngine()</span>
case "dag":<span class="cov0" title="0">
engine = consensus.NewDAGEngine()</span>
case "pq":<span class="cov0" title="0">
engine = consensus.NewPQEngine()</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown engine: %s\n", engineType)
os.Exit(1)</span>
}
// Start engine
<span class="cov0" title="0">if err := engine.Start(ctx, 1); err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Failed to start: %v\n", err)
os.Exit(1)
}</span>
<span class="cov0" title="0">defer func() </span><span class="cov0" title="0">{ _ = engine.Stop(ctx) }</span>()
// Health check
<span class="cov0" title="0">health, err := engine.HealthCheck(ctx)
if err != nil </span><span class="cov0" title="0">{
fmt.Printf("✗ Health check failed: %v\n", err)
os.Exit(1)
}</span>
<span class="cov0" title="0">fmt.Println("✓ Healthy")
fmt.Printf(" Status: %+v\n", health)</span>
}
func getNetworkParams(network string) config.Parameters <span class="cov0" title="0">{
switch network </span>{
case "mainnet":<span class="cov0" title="0">
return config.MainnetParams()</span>
case "testnet":<span class="cov0" title="0">
return config.TestnetParams()</span>
case "local":<span class="cov0" title="0">
return config.LocalParams()</span>
default:<span class="cov0" title="0">
return config.MainnetParams()</span>
}
}
</pre>
<pre class="file" id="file5" style="display: none">// Package main provides the params CLI tool for viewing consensus network parameters
package main
import (
"flag"
"fmt"
"os"
"github.com/luxfi/consensus/config"
)
func main() <span class="cov0" title="0">{
var (
network = flag.String("network", "mainnet", "Network to show parameters for (mainnet, testnet, local, xchain)")
json = flag.Bool("json", false, "Output in JSON format")
help = flag.Bool("help", false, "Show help message")
)
flag.Parse()
if *help </span><span class="cov0" title="0">{
printHelp()
os.Exit(0)
}</span>
<span class="cov0" title="0">var params config.Parameters
switch *network </span>{
case "mainnet":<span class="cov0" title="0">
params = config.MainnetParams()</span>
case "testnet":<span class="cov0" title="0">
params = config.TestnetParams()</span>
case "local":<span class="cov0" title="0">
params = config.LocalParams()</span>
case "xchain":<span class="cov0" title="0">
params = config.XChainParams()</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown network: %s\n", *network)
fmt.Fprintln(os.Stderr, "Valid networks: mainnet, testnet, local, xchain")
os.Exit(1)</span>
}
<span class="cov0" title="0">if *json </span><span class="cov0" title="0">{
printJSON(params)
}</span> else<span class="cov0" title="0"> {
printTable(params)
}</span>
}
func printHelp() <span class="cov0" title="0">{
fmt.Println("Consensus Parameters Viewer")
fmt.Println("\nUsage: params [options]")
fmt.Println("\nOptions:")
fmt.Println(" -network string Network to show parameters for (default: mainnet)")
fmt.Println(" Options: mainnet, testnet, local, xchain")
fmt.Println(" -json Output in JSON format")
fmt.Println(" -help Show this help message")
fmt.Println("\nExamples:")
fmt.Println(" params # Show mainnet parameters")
fmt.Println(" params -network testnet # Show testnet parameters")
fmt.Println(" params -network local -json # Show local parameters in JSON")
}</span>
func printTable(p config.Parameters) <span class="cov0" title="0">{
fmt.Printf("K (sample size): %d\n", p.K)
fmt.Printf("Alpha (quorum): %.2f\n", p.Alpha)
fmt.Printf("Beta (decision rounds): %d\n", p.Beta)
fmt.Printf("Block Time: %s\n", p.BlockTime)
fmt.Printf("Round Timeout: %s\n", p.RoundTO)
if p.AlphaPreference &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Alpha Preference: %d\n", p.AlphaPreference)
}</span>
<span class="cov0" title="0">if p.AlphaConfidence &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Alpha Confidence: %d\n", p.AlphaConfidence)
}</span>
<span class="cov0" title="0">if p.BetaVirtuous &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Beta Virtuous: %d\n", p.BetaVirtuous)
}</span>
<span class="cov0" title="0">if p.BetaRogue &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Beta Rogue: %d\n", p.BetaRogue)
}</span>
<span class="cov0" title="0">if p.ConcurrentPolls &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Concurrent Polls: %d\n", p.ConcurrentPolls)
}</span>
<span class="cov0" title="0">if p.ConcurrentRepolls &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Concurrent Repolls: %d\n", p.ConcurrentRepolls)
}</span>
<span class="cov0" title="0">if p.OptimalProcessing &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Optimal Processing: %d\n", p.OptimalProcessing)
}</span>
<span class="cov0" title="0">if p.MaxOutstandingItems &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Max Outstanding Items: %d\n", p.MaxOutstandingItems)
}</span>
<span class="cov0" title="0">if p.Parents &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Parents: %d\n", p.Parents)
}</span>
<span class="cov0" title="0">if p.BatchSize &gt; 0 </span><span class="cov0" title="0">{
fmt.Printf("Batch Size: %d\n", p.BatchSize)
}</span>
}
func printJSON(p config.Parameters) <span class="cov0" title="0">{
fmt.Printf(`{
"k": %d,
"alpha": %.2f,
"beta": %d,
"blockTime": "%s",
"roundTimeout": "%s",
"alphaPreference": %d,
"alphaConfidence": %d,
"betaVirtuous": %d,
"betaRogue": %d,
"concurrentPolls": %d,
"concurrentRepolls": %d,
"optimalProcessing": %d,
"maxOutstandingItems": %d,
"parents": %d,
"batchSize": %d
}
`, p.K, p.Alpha, p.Beta, p.BlockTime, p.RoundTO,
p.AlphaPreference, p.AlphaConfidence, p.BetaVirtuous, p.BetaRogue,
p.ConcurrentPolls, p.ConcurrentRepolls, p.OptimalProcessing,
p.MaxOutstandingItems, p.Parents, p.BatchSize)
}</span>
</pre>
<pre class="file" id="file6" style="display: none">package main
import (
"context"
"encoding/json"
"flag"
"log"
"net/http"
"time"
"github.com/luxfi/consensus"
"github.com/luxfi/consensus/config"
"github.com/luxfi/ids"
)
type ConsensusServer struct {
engine consensus.Engine
config config.Parameters
}
type StatusResponse struct {
Engine string `json:"engine"`
Network string `json:"network"`
Healthy bool `json:"healthy"`
Parameters config.Parameters `json:"parameters"`
Health interface{} `json:"health,omitempty"`
}
type TestRequest struct {
Rounds int `json:"rounds"`
Nodes int `json:"nodes"`
}
type TestResponse struct {
Success bool `json:"success"`
Rounds int `json:"rounds"`
Accepts int `json:"accepts"`
Rejects int `json:"rejects"`
AvgTime string `json:"avg_time"`
Confidence float64 `json:"confidence"`
}
func (s *ConsensusServer) handleStatus(w http.ResponseWriter, r *http.Request) <span class="cov0" title="0">{
ctx := context.Background()
health := make(map[string]interface{})
health["healthy"] = true
if adapter, ok := s.engine.(interface {
HealthCheck(context.Context) (interface{}, error)
}); ok </span><span class="cov0" title="0">{
if h, err := adapter.HealthCheck(ctx); err == nil </span><span class="cov0" title="0">{
if healthMap, ok := h.(map[string]interface{}); ok </span><span class="cov0" title="0">{
health = healthMap
}</span> else<span class="cov0" title="0"> if healthBoolMap, ok := h.(map[string]bool); ok </span><span class="cov0" title="0">{
for k, v := range healthBoolMap </span><span class="cov0" title="0">{
health[k] = v
}</span>
}
}
}
<span class="cov0" title="0">healthy := true
if val, ok := health["healthy"].(bool); ok </span><span class="cov0" title="0">{
healthy = val
}</span>
<span class="cov0" title="0">resp := StatusResponse{
Engine: "chain",
Network: "mainnet",
Healthy: healthy,
Parameters: s.config,
Health: health,
}
w.Header().Set("Content-Type", "application/json")
if err := json.NewEncoder(w).Encode(resp); err != nil </span><span class="cov0" title="0">{
log.Printf("Error encoding response: %v", err)
}</span>
}
func (s *ConsensusServer) handleTest(w http.ResponseWriter, r *http.Request) <span class="cov0" title="0">{
var req TestRequest
if r.Method == http.MethodPost </span><span class="cov0" title="0">{
if err := json.NewDecoder(r.Body).Decode(&amp;req); err != nil </span><span class="cov0" title="0">{
http.Error(w, err.Error(), http.StatusBadRequest)
return
}</span>
} else<span class="cov0" title="0"> {
req.Rounds = 10
req.Nodes = 5
}</span>
// Run simple consensus test
<span class="cov0" title="0">accepts := 0
rejects := 0
totalTime := time.Duration(0)
for i := 0; i &lt; req.Rounds; i++ </span><span class="cov0" title="0">{
start := time.Now()
// Simulate consensus round
blockID := ids.GenerateTestID()
// Simulate votes from nodes
acceptVotes := 0
for j := 0; j &lt; req.Nodes; j++ </span><span class="cov0" title="0">{
if j &lt; (req.Nodes * 8 / 10) </span><span class="cov0" title="0">{ // 80% vote to accept
acceptVotes++
}</span>
}
<span class="cov0" title="0">if float64(acceptVotes)/float64(req.Nodes) &gt;= s.config.Alpha </span><span class="cov0" title="0">{
accepts++
}</span> else<span class="cov0" title="0"> {
rejects++
}</span>
<span class="cov0" title="0">totalTime += time.Since(start)
// Log the vote
log.Printf("Round %d: BlockID=%s, Accept=%d/%d\n", i+1, blockID, acceptVotes, req.Nodes)</span>
}
<span class="cov0" title="0">avgTime := totalTime / time.Duration(req.Rounds)
confidence := float64(accepts) / float64(req.Rounds)
resp := TestResponse{
Success: true,
Rounds: req.Rounds,
Accepts: accepts,
Rejects: rejects,
AvgTime: avgTime.String(),
Confidence: confidence * 100,
}
w.Header().Set("Content-Type", "application/json")
if err := json.NewEncoder(w).Encode(resp); err != nil </span><span class="cov0" title="0">{
log.Printf("Error encoding response: %v", err)
}</span>
}
func (s *ConsensusServer) handleConsensus(w http.ResponseWriter, r *http.Request) <span class="cov0" title="0">{
if r.Method != http.MethodPost </span><span class="cov0" title="0">{
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}</span>
<span class="cov0" title="0">var req struct {
BlockID string `json:"block_id"`
Votes map[string]int `json:"votes"`
}
if err := json.NewDecoder(r.Body).Decode(&amp;req); err != nil </span><span class="cov0" title="0">{
http.Error(w, err.Error(), http.StatusBadRequest)
return
}</span>
// Process consensus
<span class="cov0" title="0">blockID, err := ids.FromString(req.BlockID)
if err != nil </span><span class="cov0" title="0">{
blockID = ids.GenerateTestID()
}</span>
// Calculate if consensus reached
<span class="cov0" title="0">totalVotes := 0
acceptVotes := 0
for _, count := range req.Votes </span><span class="cov0" title="0">{
totalVotes += count
if count &gt; 0 </span><span class="cov0" title="0">{
acceptVotes += count
}</span>
}
<span class="cov0" title="0">finalized := false
if totalVotes &gt; 0 </span><span class="cov0" title="0">{
confidence := float64(acceptVotes) / float64(totalVotes)
finalized = confidence &gt;= s.config.Alpha
}</span>
<span class="cov0" title="0">resp := map[string]interface{}{
"block_id": blockID.String(),
"finalized": finalized,
"votes": req.Votes,
"confidence": float64(acceptVotes) / float64(totalVotes) * 100,
"alpha": s.config.Alpha * 100,
}
w.Header().Set("Content-Type", "application/json")
if err := json.NewEncoder(w).Encode(resp); err != nil </span><span class="cov0" title="0">{
log.Printf("Error encoding response: %v", err)
}</span>
}
func main() <span class="cov0" title="0">{
var (
port = flag.String("port", "8080", "Server port")
network = flag.String("network", "mainnet", "Network configuration")
)
flag.Parse()
// Initialize consensus engine
engine := consensus.NewChainEngine()
var params config.Parameters
switch *network </span>{
case "testnet":<span class="cov0" title="0">
params = config.TestnetParams()</span>
case "local":<span class="cov0" title="0">
params = config.LocalParams()</span>
default:<span class="cov0" title="0">
params = config.MainnetParams()</span>
}
<span class="cov0" title="0">server := &amp;ConsensusServer{
engine: engine,
config: params,
}
// Set up routes
mux := http.NewServeMux()
mux.HandleFunc("/status", server.handleStatus)
mux.HandleFunc("/test", server.handleTest)
mux.HandleFunc("/consensus", server.handleConsensus)
mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) </span><span class="cov0" title="0">{
w.WriteHeader(http.StatusOK)
if _, err := w.Write([]byte("OK")); err != nil </span><span class="cov0" title="0">{
log.Printf("Error writing response: %v", err)
}</span>
})
<span class="cov0" title="0">log.Printf("Starting consensus server on port %s with %s config", *port, *network)
log.Printf("Endpoints:")
log.Printf(" GET /status - Get engine status")
log.Printf(" GET /health - Health check")
log.Printf(" GET /test - Run consensus test")
log.Printf(" POST /test - Run consensus test with custom params")
log.Printf(" POST /consensus - Process consensus round")
// Create server with timeouts to avoid G114 warning
srv := &amp;http.Server{
Addr: ":" + *port,
Handler: mux,
ReadTimeout: 15 * time.Second,
WriteTimeout: 15 * time.Second,
IdleTimeout: 60 * time.Second,
}
if err := srv.ListenAndServe(); err != nil </span><span class="cov0" title="0">{
log.Fatal(err)
}</span>
}
</pre>
<pre class="file" id="file7" style="display: none">// Package main provides the sim CLI tool for consensus simulation
package main
import (
"context"
"flag"
"fmt"
"math/rand"
"os"
"time"
"github.com/luxfi/consensus/config"
)
func main() <span class="cov0" title="0">{
var (
nodes = flag.Int("nodes", 100, "Number of nodes in the network")
rounds = flag.Int("rounds", 10, "Number of consensus rounds to simulate")
network = flag.String("network", "mainnet", "Network configuration (mainnet, testnet, local)")
failure = flag.Float64("failure", 0.1, "Node failure rate (0.0-1.0)")
latency = flag.Duration("latency", 50*time.Millisecond, "Network latency")
verbose = flag.Bool("verbose", false, "Verbose output")
help = flag.Bool("help", false, "Show help message")
)
flag.Parse()
if *help </span><span class="cov0" title="0">{
printHelp()
os.Exit(0)
}</span>
<span class="cov0" title="0">if *failure &lt; 0 || *failure &gt; 1 </span><span class="cov0" title="0">{
fmt.Fprintf(os.Stderr, "Failure rate must be between 0.0 and 1.0\n")
os.Exit(1)
}</span>
// Get network configuration
<span class="cov0" title="0">params := getNetworkParams(*network)
fmt.Println("=== Consensus Simulation ===")
fmt.Printf("Network: %s\n", *network)
fmt.Printf("Nodes: %d\n", *nodes)
fmt.Printf("Rounds: %d\n", *rounds)
fmt.Printf("Failure: %.1f%%\n", *failure*100)
fmt.Printf("Latency: %s\n", *latency)
fmt.Printf("Parameters: K=%d, Alpha=%.2f, Beta=%d\n\n", params.K, params.Alpha, params.Beta)
// Run simulation
results := runSimulation(*nodes, *rounds, params, *failure, *latency, *verbose)
// Print results
printResults(results, params)</span>
}
func printHelp() <span class="cov0" title="0">{
fmt.Println("Consensus Simulator")
fmt.Println("\nUsage: sim [options]")
fmt.Println("\nOptions:")
fmt.Println(" -nodes int Number of nodes in the network (default: 100)")
fmt.Println(" -rounds int Number of consensus rounds (default: 10)")
fmt.Println(" -network string Network configuration (default: mainnet)")
fmt.Println(" Options: mainnet, testnet, local")
fmt.Println(" -failure float Node failure rate 0.0-1.0 (default: 0.1)")
fmt.Println(" -latency duration Network latency (default: 50ms)")
fmt.Println(" -verbose Verbose output")
fmt.Println(" -help Show this help message")
fmt.Println("\nExamples:")
fmt.Println(" sim # Run default simulation")
fmt.Println(" sim -nodes 1000 -rounds 100 # Large scale simulation")
fmt.Println(" sim -failure 0.3 -latency 200ms # High failure, slow network")
fmt.Println(" sim -network testnet -verbose # Testnet config with details")
}</span>
func getNetworkParams(network string) config.Parameters <span class="cov0" title="0">{
switch network </span>{
case "mainnet":<span class="cov0" title="0">
return config.MainnetParams()</span>
case "testnet":<span class="cov0" title="0">
return config.TestnetParams()</span>
case "local":<span class="cov0" title="0">
return config.LocalParams()</span>
default:<span class="cov0" title="0">
fmt.Fprintf(os.Stderr, "Unknown network: %s, using mainnet\n", network)
return config.MainnetParams()</span>
}
}
type SimulationResult struct {
Round int
VotesReceived int
Confidence float64
Decision string
TimeToConsensus time.Duration
FailedNodes int
}
func runSimulation(nodes int, rounds int, params config.Parameters, failureRate float64, latency time.Duration, verbose bool) []SimulationResult <span class="cov0" title="0">{
results := make([]SimulationResult, 0, rounds)
ctx := context.Background()
for round := 1; round &lt;= rounds; round++ </span><span class="cov0" title="0">{
if verbose </span><span class="cov0" title="0">{
fmt.Printf("Round %d: ", round)
}</span>
<span class="cov0" title="0">start := time.Now()
result := simulateRound(ctx, nodes, params, failureRate, latency)
result.Round = round
result.TimeToConsensus = time.Since(start)
if verbose </span><span class="cov0" title="0">{
fmt.Printf("%s (confidence: %.2f%%, time: %s)\n",
result.Decision, result.Confidence*100, result.TimeToConsensus)
}</span>
<span class="cov0" title="0">results = append(results, result)
// Simulate inter-round delay
time.Sleep(latency)</span>
}
<span class="cov0" title="0">return results</span>
}
func simulateRound(ctx context.Context, nodes int, params config.Parameters, failureRate float64, latency time.Duration) SimulationResult <span class="cov0" title="0">{
// Calculate failed nodes
failedNodes := int(float64(nodes) * failureRate)
activeNodes := nodes - failedNodes
// Sample K nodes randomly
k := params.K
if k &gt; activeNodes </span><span class="cov0" title="0">{
k = activeNodes
}</span>
// Simulate voting
<span class="cov0" title="0">votes := 0
for i := 0; i &lt; k; i++ </span><span class="cov0" title="0">{
// Simulate network latency
time.Sleep(latency / time.Duration(k))
// Random vote with Byzantine behavior (simulation only, not security-critical)
if rand.Float64() &gt; 0.2 </span><span class="cov0" title="0">{ // 80% honest nodes //nolint:gosec // simulation randomness
votes++
}</span>
}
// Calculate confidence
<span class="cov0" title="0">confidence := float64(votes) / float64(k)
// Determine decision based on alpha threshold
decision := "REJECT"
if confidence &gt;= params.Alpha </span><span class="cov0" title="0">{
decision = "ACCEPT"
}</span>
<span class="cov0" title="0">return SimulationResult{
VotesReceived: votes,
Confidence: confidence,
Decision: decision,
FailedNodes: failedNodes,
}</span>
}
func printResults(results []SimulationResult, params config.Parameters) <span class="cov0" title="0">{
fmt.Println("=== Simulation Results ===")
accepts := 0
rejects := 0
totalTime := time.Duration(0)
totalConfidence := 0.0
for _, r := range results </span><span class="cov0" title="0">{
if r.Decision == "ACCEPT" </span><span class="cov0" title="0">{
accepts++
}</span> else<span class="cov0" title="0"> {
rejects++
}</span>
<span class="cov0" title="0">totalTime += r.TimeToConsensus
totalConfidence += r.Confidence</span>
}
<span class="cov0" title="0">fmt.Printf("\nConsensus Decisions:\n")
fmt.Printf(" Accepts: %d (%.1f%%)\n", accepts, float64(accepts)/float64(len(results))*100)
fmt.Printf(" Rejects: %d (%.1f%%)\n", rejects, float64(rejects)/float64(len(results))*100)
fmt.Printf("\nPerformance:\n")
fmt.Printf(" Avg Time: %s\n", totalTime/time.Duration(len(results)))
fmt.Printf(" Avg Confidence: %.2f%%\n", totalConfidence/float64(len(results))*100)
fmt.Printf(" Alpha Required: %.2f%%\n", params.Alpha*100)
// Calculate finality probability
finalityProb := calculateFinalityProbability(params.Alpha, params.Beta, totalConfidence/float64(len(results)))
fmt.Printf("\nFinality:\n")
fmt.Printf(" Probability: %.4f%%\n", finalityProb*100)
fmt.Printf(" Beta Rounds: %d\n", params.Beta)</span>
}
func calculateFinalityProbability(alpha float64, beta uint32, avgConfidence float64) float64 <span class="cov0" title="0">{
// Simplified finality calculation
// P(finality) = confidence^beta
prob := 1.0
for i := uint32(0); i &lt; beta; i++ </span><span class="cov0" title="0">{
prob *= avgConfidence
}</span>
<span class="cov0" title="0">return prob</span>
}
func init() {<span class="cov0" title="0">
// As of Go 1.20, rand.Seed is deprecated - random seeding is automatic
// No manual seeding required for better randomness
}</span>
</pre>
<pre class="file" id="file8" style="display: none">// Package codec provides encoding/decoding for consensus types
package codec
import (
"encoding/json"
"fmt"
)
// CodecVersion represents the codec version
type CodecVersion uint16
const (
// CurrentVersion is the current codec version
CurrentVersion CodecVersion = 0
)
// Codec provides marshaling/unmarshaling
var Codec = &amp;JSONCodec{}
// JSONCodec implements JSON encoding/decoding
type JSONCodec struct{}
// Marshal marshals an object to bytes
func (c *JSONCodec) Marshal(version CodecVersion, v interface{}) ([]byte, error) <span class="cov0" title="0">{
if version != CurrentVersion </span><span class="cov0" title="0">{
return nil, fmt.Errorf("unsupported codec version: %d", version)
}</span>
<span class="cov0" title="0">return json.Marshal(v)</span>
}
// Unmarshal unmarshals bytes to an object
func (c *JSONCodec) Unmarshal(data []byte, v interface{}) (CodecVersion, error) <span class="cov0" title="0">{
err := json.Unmarshal(data, v)
return CurrentVersion, err
}</span>
</pre>
<pre class="file" id="file9" style="display: none">package config
import (
"errors"
"time"
)
// Error variables for parameter validation
var (
ErrParametersInvalid = errors.New("invalid consensus parameters")
ErrInvalidK = errors.New("k must be &gt;= 1")
ErrInvalidAlpha = errors.New("alpha must be between 0.5 and 1.0")
ErrInvalidBeta = errors.New("beta must be &gt;= 1")
ErrBlockTimeTooLow = errors.New("block time must be &gt;= 1ms")
ErrRoundTimeoutTooLow = errors.New("round timeout must be &gt;= block time")
)
// Parameters defines consensus parameters
type Parameters struct {
K int
Alpha float64 // For compatibility with Quasar
Beta uint32 // For compatibility with Quasar
AlphaPreference int
AlphaConfidence int
BetaVirtuous int
BetaRogue int
ConcurrentPolls int
ConcurrentRepolls int
OptimalProcessing int
MaxOutstandingItems int
MaxItemProcessingTime time.Duration
Parents int
BatchSize int
BlockTime time.Duration // For compatibility
RoundTO time.Duration // For compatibility
}
// DefaultParams returns default parameters with 69% threshold
func DefaultParams() Parameters <span class="cov8" title="1">{
return Parameters{
K: 20,
Alpha: 0.69, // 69% threshold for BFT
Beta: 14, // Adjusted for 69% (was 15)
AlphaPreference: 14, // 70% of K for 69% threshold
AlphaConfidence: 14, // Matches AlphaPreference for 69%
BetaVirtuous: 14, // Virtuous confidence for 69%
BetaRogue: 20, // Rogue confidence remains high
ConcurrentPolls: 4,
ConcurrentRepolls: 4,
OptimalProcessing: 10,
MaxOutstandingItems: 1024,
MaxItemProcessingTime: 2 * time.Minute,
Parents: 2, // Reduced for efficiency
BatchSize: 30,
BlockTime: 100 * time.Millisecond,
RoundTO: 250 * time.Millisecond,
}
}</span>
// MainnetParams returns mainnet parameters with 69% threshold
func MainnetParams() Parameters <span class="cov8" title="1">{
p := DefaultParams()
p.K = 21
p.AlphaPreference = 15 // ~71% of K for 69% threshold
p.AlphaConfidence = 15 // Matches AlphaPreference
p.BetaVirtuous = 15 // Virtuous confidence for 69%
p.BlockTime = 200 * time.Millisecond
p.RoundTO = 400 * time.Millisecond
return p
}</span>
// TestnetParams returns testnet parameters with 69% threshold
func TestnetParams() Parameters <span class="cov8" title="1">{
p := DefaultParams()
p.K = 11
p.Alpha = 0.69 // 69% threshold
p.Beta = 8 // Adjusted for 69%
p.AlphaPreference = 8 // ~73% of K for 69% threshold
p.AlphaConfidence = 8 // Matches AlphaPreference
p.BetaVirtuous = 8 // Virtuous confidence for 69%
p.BlockTime = 100 * time.Millisecond
p.RoundTO = 225 * time.Millisecond
return p
}</span>
// LocalParams returns local parameters with 69% threshold
func LocalParams() Parameters <span class="cov8" title="1">{
p := DefaultParams()
p.K = 5
p.Alpha = 0.69 // 69% threshold
p.Beta = 4 // Adjusted for 69%
p.AlphaPreference = 4 // 80% of K for 69% threshold
p.AlphaConfidence = 4 // Matches AlphaPreference
p.BetaVirtuous = 4 // Virtuous confidence for 69%
p.BlockTime = 10 * time.Millisecond
p.RoundTO = 45 * time.Millisecond
return p
}</span>
// XChainParams returns X-Chain parameters with 69% threshold
func XChainParams() Parameters <span class="cov8" title="1">{
p := DefaultParams()
p.K = 5
p.Alpha = 0.69 // 69% threshold
p.Beta = 4 // Adjusted for 69%
p.AlphaPreference = 4 // 80% of K for 69% threshold
p.AlphaConfidence = 4 // Matches AlphaPreference
p.BetaVirtuous = 4 // Virtuous confidence for 69%
p.BlockTime = 1 * time.Millisecond
p.RoundTO = 5 * time.Millisecond
return p
}</span>
// WithBlockTime returns a copy of Parameters with updated block time
func (p Parameters) WithBlockTime(blockTime time.Duration) Parameters <span class="cov8" title="1">{
p.BlockTime = blockTime
// Adjust round timeout based on block time
if blockTime &lt;= time.Millisecond </span><span class="cov8" title="1">{
p.RoundTO = 5 * time.Millisecond
}</span> else<span class="cov8" title="1"> if blockTime &lt; 10*time.Millisecond </span><span class="cov8" title="1">{
p.RoundTO = 25 * time.Millisecond
}</span> else<span class="cov8" title="1"> if blockTime &lt; 100*time.Millisecond </span><span class="cov8" title="1">{
p.RoundTO = 250 * time.Millisecond
}</span> else<span class="cov8" title="1"> {
p.RoundTO = blockTime * 2
}</span>
<span class="cov8" title="1">return p</span>
}
// Validate validates parameters (compatibility method)
func (p Parameters) Validate() error <span class="cov8" title="1">{
return p.Valid()
}</span>
// Valid validates parameters with 69% threshold enforcement
func (p Parameters) Valid() error <span class="cov8" title="1">{
// Check K, Alpha, Beta first - these are always required
if p.K &lt; 1 </span><span class="cov8" title="1">{
return ErrInvalidK
}</span>
// Enforce 69% threshold minimum (with small tolerance for rounding)
<span class="cov8" title="1">if p.Alpha &lt; 0.68 || p.Alpha &gt; 1.0 </span><span class="cov8" title="1">{
return ErrInvalidAlpha
}</span>
<span class="cov8" title="1">if p.Beta &lt; 1 </span><span class="cov8" title="1">{
return ErrInvalidBeta
}</span>
<span class="cov8" title="1">if p.BlockTime &gt; 0 &amp;&amp; p.BlockTime &lt; time.Millisecond </span><span class="cov8" title="1">{
return ErrBlockTimeTooLow
}</span>
<span class="cov8" title="1">if p.BlockTime &gt; 0 &amp;&amp; p.RoundTO &gt; 0 &amp;&amp; p.RoundTO &lt; p.BlockTime </span><span class="cov8" title="1">{
return ErrRoundTimeoutTooLow
}</span>
// Only validate other fields if they are set (non-zero)
<span class="cov8" title="1">if p.AlphaPreference != 0 &amp;&amp; (p.AlphaPreference &lt; 0 || p.AlphaPreference &gt; p.K) </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.AlphaConfidence != 0 &amp;&amp; (p.AlphaConfidence &lt; 0 || p.AlphaConfidence &gt; p.K) </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.BetaVirtuous &lt; 0 </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.BetaRogue != 0 &amp;&amp; p.BetaRogue &lt; p.BetaVirtuous </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.ConcurrentPolls != 0 &amp;&amp; p.ConcurrentPolls &lt; 1 </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.OptimalProcessing != 0 &amp;&amp; p.OptimalProcessing &lt; 1 </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.MaxOutstandingItems != 0 &amp;&amp; p.MaxOutstandingItems &lt; 1 </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">if p.MaxItemProcessingTime != 0 &amp;&amp; p.MaxItemProcessingTime &lt;= 0 </span><span class="cov0" title="0">{
return ErrParametersInvalid
}</span>
<span class="cov8" title="1">return nil</span>
}
</pre>
<pre class="file" id="file10" style="display: none">package config
import "math"
// Consensus threshold constants (LP-CONSENSUS-69)
const (
// ConsensusSuperMajority is the 69% threshold for Byzantine fault tolerance
// This provides an additional 2% safety margin above traditional 67% BFT
ConsensusSuperMajority = 0.69
// ConsensusSimpleMajority is the simple majority threshold
ConsensusSimpleMajority = 0.51
// MaxByzantineWeight is the maximum tolerable Byzantine weight (31%)
MaxByzantineWeight = 0.31
)
// CalculateQuorum calculates the minimum weight needed for 69% consensus
func CalculateQuorum(totalWeight uint64) uint64 <span class="cov8" title="1">{
return uint64(math.Ceil(float64(totalWeight) * ConsensusSuperMajority))
}</span>
// HasSuperMajority checks if the given weight meets the 69% threshold
func HasSuperMajority(weight, totalWeight uint64) bool <span class="cov8" title="1">{
return float64(weight) &gt;= float64(totalWeight)*ConsensusSuperMajority
}</span>
// HasSimpleMajority checks if the given weight meets simple majority
func HasSimpleMajority(weight, totalWeight uint64) bool <span class="cov0" title="0">{
return float64(weight) &gt;= float64(totalWeight)*ConsensusSimpleMajority
}</span>
// CanTolerateFailure checks if the Byzantine weight is within tolerance
func CanTolerateFailure(byzantineWeight, totalWeight uint64) bool <span class="cov8" title="1">{
return float64(byzantineWeight) &lt;= float64(totalWeight)*MaxByzantineWeight
}</span>
// AlphaForK calculates the appropriate Alpha value for a given K
// to achieve 69% consensus threshold
func AlphaForK(k int) int <span class="cov8" title="1">{
return int(math.Ceil(float64(k) * ConsensusSuperMajority))
}</span>
</pre>
<pre class="file" id="file11" style="display: none">package config
// FPCConfig represents Firing Photon Cannon configuration
type FPCConfig struct {
// Enable indicates whether FPC is enabled (default: true)
Enable bool
// Rounds is the number of FPC rounds to run
Rounds int
// Threshold is the confidence threshold for FPC
Threshold float64
// SampleSize is the number of nodes to sample per round
SampleSize int
}
// DefaultFPC returns the default FPC configuration
func DefaultFPC() FPCConfig <span class="cov0" title="0">{
return FPCConfig{
Enable: true, // FPC enabled by default
Rounds: 10,
Threshold: 0.8,
SampleSize: 20,
}
}</span>
// WithFPC adds FPC configuration to Parameters
func (p Parameters) WithFPC(fpc FPCConfig) Parameters <span class="cov0" title="0">{
// In a real implementation, you'd add FPC fields to Parameters
// For now, just return the parameters unchanged
return p
}</span>
</pre>
<pre class="file" id="file12" style="display: none">package config
type WaveConfig struct {
Enable bool
VoteLimitPerBlock int
ExecuteOwned bool
ExecuteMixedOnFinal bool
EpochFence bool
VotePrefix []byte
}
func DefaultWave() WaveConfig <span class="cov8" title="1">{
return WaveConfig{
Enable: true,
VoteLimitPerBlock: 256,
ExecuteOwned: true,
ExecuteMixedOnFinal: true,
EpochFence: true,
VotePrefix: []byte("WAVE/V1"),
}
}</span>
</pre>
<pre class="file" id="file13" style="display: none">// Package consensus provides the Lux consensus implementation.
package consensus
import (
"context"
"github.com/luxfi/consensus/codec"
"github.com/luxfi/consensus/config"
consensuscontext "github.com/luxfi/consensus/context"
"github.com/luxfi/consensus/engine/chain"
"github.com/luxfi/consensus/engine/dag"
"github.com/luxfi/consensus/engine/pq"
)
// Engine is the main consensus engine interface
type Engine interface {
// Start starts the engine
Start(context.Context, uint32) error
// Stop stops the engine
Stop(context.Context) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
// IsBootstrapped returns whether the engine is bootstrapped
IsBootstrapped() bool
}
// NewChainEngine creates a new chain consensus engine
func NewChainEngine() Engine <span class="cov8" title="1">{
return chain.New()
}</span>
// NewDAGEngine creates a new DAG consensus engine
func NewDAGEngine() Engine <span class="cov8" title="1">{
return &amp;dagEngineWrapper{dag.New()}
}</span>
// dagEngineWrapper wraps dag.Engine to implement consensus.Engine
type dagEngineWrapper struct {
dag.Engine
}
func (d *dagEngineWrapper) Stop(ctx context.Context) error <span class="cov8" title="1">{
return d.Shutdown(ctx)
}</span>
func (d *dagEngineWrapper) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov8" title="1">{
return map[string]string{"status": "healthy"}, nil
}</span>
func (d *dagEngineWrapper) IsBootstrapped() bool <span class="cov8" title="1">{
return true
}</span>
// NewPQEngine creates a new post-quantum consensus engine
func NewPQEngine() Engine <span class="cov8" title="1">{
return pq.New()
}</span>
// Config returns default consensus parameters for different network sizes
func Config(nodes int) config.Parameters <span class="cov0" title="0">{
switch </span>{
case nodes &lt;= 5:<span class="cov0" title="0">
return config.LocalParams()</span>
case nodes &lt;= 11:<span class="cov0" title="0">
return config.TestnetParams()</span>
case nodes &lt;= 21:<span class="cov0" title="0">
return config.MainnetParams()</span>
default:<span class="cov0" title="0">
// For larger networks, use mainnet with adjusted K
cfg := config.MainnetParams()
cfg.K = nodes
return cfg</span>
}
}
// Export types from sub-packages for convenience
type (
// Context is the consensus context
Context = consensuscontext.Context
// ValidatorState provides validator information
ValidatorState = consensuscontext.ValidatorState
// IDs holds consensus IDs
IDs = consensuscontext.IDs
// CodecVersion is the codec version
CodecVersion = codec.CodecVersion
)
// Export constants
const (
// CurrentCodecVersion is the current codec version
CurrentCodecVersion = codec.CurrentVersion
)
// Export variables
var (
// Codec is the consensus codec
Codec = codec.Codec
)
// Export functions from context
var (
GetTimestamp = consensuscontext.GetTimestamp
GetChainID = consensuscontext.GetChainID
GetNetID = consensuscontext.GetNetID
GetNetworkID = consensuscontext.GetNetworkID
GetValidatorState = consensuscontext.GetValidatorState
GetSubnetID = consensuscontext.GetNetID // GetSubnetID is an alias for GetNetID for backward compatibility
WithContext = consensuscontext.WithContext
FromContext = consensuscontext.FromContext
GetNodeID = consensuscontext.GetNodeID
WithIDs = consensuscontext.WithIDs
WithValidatorState = consensuscontext.WithValidatorState
)
// AppError represents an application error
type AppError struct {
Code int
Message string
}
</pre>
<pre class="file" id="file14" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package consensustest
import (
"context"
"testing"
"github.com/luxfi/consensus"
"github.com/luxfi/ids"
)
var (
PChainID = ids.GenerateTestID()
XChainID = ids.GenerateTestID()
CChainID = ids.GenerateTestID()
LUXAssetID = ids.GenerateTestID()
)
// SimpleValidatorState is a minimal validator state for testing
type SimpleValidatorState struct{}
func (s *SimpleValidatorState) GetChainID(chainID ids.ID) (ids.ID, error) <span class="cov0" title="0">{
return chainID, nil
}</span>
func (s *SimpleValidatorState) GetNetID(chainID ids.ID) (ids.ID, error) <span class="cov0" title="0">{
return ids.Empty, nil
}</span>
func (s *SimpleValidatorState) GetSubnetID(chainID ids.ID) (ids.ID, error) <span class="cov0" title="0">{
return ids.Empty, nil
}</span>
func (s *SimpleValidatorState) GetValidatorSet(height uint64, subnetID ids.ID) (map[ids.NodeID]uint64, error) <span class="cov0" title="0">{
return map[ids.NodeID]uint64{}, nil
}</span>
func (s *SimpleValidatorState) GetCurrentHeight() (uint64, error) <span class="cov0" title="0">{
return 0, nil
}</span>
func (s *SimpleValidatorState) GetMinimumHeight(ctx context.Context) (uint64, error) <span class="cov0" title="0">{
return 0, nil
}</span>
// ConsensusContext updates a consensus context with default test values
func ConsensusContext(ctx *consensus.Context) *consensus.Context <span class="cov0" title="0">{
// Simple consensus package doesn't have these fields, just return the context as-is
return ctx
}</span>
// NewContext creates a new consensus context for testing
// This is a compatibility function that creates a context with a generated chain ID
func NewContext(tb testing.TB) *consensus.Context <span class="cov0" title="0">{
return Context(tb, ids.GenerateTestID())
}</span>
// Context creates a new consensus context for testing with a specific chain ID
func Context(tb testing.TB, chainID ids.ID) *consensus.Context <span class="cov0" title="0">{
tb.Helper()
ctx := &amp;consensus.Context{
QuantumID: 1,
ChainID: chainID,
NodeID: ids.GenerateTestNodeID(),
NetID: ids.Empty,
}
// Set up a simple validator state
ctx.ValidatorState = &amp;SimpleValidatorState{}
return ctx
}</span>
</pre>
<pre class="file" id="file15" style="display: none">package consensustest
import (
"context"
"testing"
"github.com/luxfi/consensus/choices"
"github.com/luxfi/ids"
)
// Block status constants
const (
Unknown uint8 = 0
Processing uint8 = 1
Accepted uint8 = 2
Rejected uint8 = 3
)
// Decidable is an embedded struct for test blocks
type Decidable struct {
IDV ids.ID
StatusV choices.Status
}
// ID returns the ID of this decidable
func (d *Decidable) ID() ids.ID <span class="cov0" title="0">{
return d.IDV
}</span>
// Accept marks this as accepted
func (d *Decidable) Accept(context.Context) error <span class="cov0" title="0">{
d.StatusV = choices.Accepted
return nil
}</span>
// Reject marks this as rejected
func (d *Decidable) Reject(context.Context) error <span class="cov0" title="0">{
d.StatusV = choices.Rejected
return nil
}</span>
// Status returns the current status
func (d *Decidable) Status() choices.Status <span class="cov0" title="0">{
return d.StatusV
}</span>
// TestConfig provides test configuration
type TestConfig struct {
NodeID ids.NodeID
NetworkID uint32
ChainID ids.ID
}
// NewTestConfig creates a test config
func NewTestConfig(t *testing.T) *TestConfig <span class="cov0" title="0">{
return &amp;TestConfig{
NodeID: ids.GenerateTestNodeID(),
NetworkID: 1,
ChainID: ids.GenerateTestID(),
}
}</span>
// MockEngine is a mock consensus engine
type MockEngine struct {
StartCalled bool
StopCalled bool
Bootstrapped bool
}
// Start starts the engine
func (m *MockEngine) Start(ctx context.Context, requestID uint32) error <span class="cov0" title="0">{
m.StartCalled = true
m.Bootstrapped = true
return nil
}</span>
// Stop stops the engine
func (m *MockEngine) Stop(ctx context.Context) error <span class="cov0" title="0">{
m.StopCalled = true
return nil
}</span>
// IsBootstrapped returns bootstrap status
func (m *MockEngine) IsBootstrapped() bool <span class="cov0" title="0">{
return m.Bootstrapped
}</span>
// HealthCheck performs health check
func (m *MockEngine) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]bool{"healthy": true}, nil
}</span>
</pre>
<pre class="file" id="file16" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package consensus
import "context"
// ContextInitializable can be initialized with context
type ContextInitializable interface {
InitCtx(context.Context)
}
// Contextualizable can be contextualized
type Contextualizable interface {
InitializeContext(context.Context) error
}
// LuxAssetID returns the ID of the LUX asset
func LuxAssetID(ctx context.Context) interface{} <span class="cov0" title="0">{
// This is a placeholder implementation
// In production, this would get the actual LUX asset ID from context
return nil
}</span>
// QuantumNetworkID returns the quantum network ID from context
func QuantumNetworkID(ctx context.Context) uint32 <span class="cov0" title="0">{
if qids := GetQuantumIDs(ctx); qids != nil </span><span class="cov0" title="0">{
return qids.QuantumID
}</span>
<span class="cov0" title="0">return 0</span>
}
// GetQuantumIDs retrieves QuantumIDs from context
func GetQuantumIDs(ctx context.Context) *QuantumIDs <span class="cov0" title="0">{
// Placeholder - would retrieve from context
return nil
}</span>
</pre>
<pre class="file" id="file17" style="display: none">// Package context provides consensus context for VMs
package context
import (
"context"
"time"
"github.com/luxfi/ids"
)
// Context provides consensus context for VMs
type Context struct {
// QuantumID is the root quantum network identifier
QuantumID uint32 `json:"quantumID"`
// NetID identifies the specific network/subnet within the quantum network
NetID ids.ID `json:"netID"`
// ChainID identifies the specific chain within the network
ChainID ids.ID `json:"chainID"`
NodeID ids.NodeID `json:"nodeID"`
PublicKey []byte `json:"publicKey"`
XChainID ids.ID `json:"xChainID"`
CChainID ids.ID `json:"cChainID"`
AVAXAssetID ids.ID `json:"avaxAssetID"`
// Timing
StartTime time.Time `json:"startTime"`
// Additional fields for consensus
ValidatorState ValidatorState
Keystore Keystore
BCLookup BlockchainIDLookup
Metrics Metrics
}
// ValidatorState provides validator information
type ValidatorState interface {
GetChainID(ids.ID) (ids.ID, error)
GetNetID(ids.ID) (ids.ID, error)
GetSubnetID(chainID ids.ID) (ids.ID, error)
GetValidatorSet(uint64, ids.ID) (map[ids.NodeID]uint64, error)
GetCurrentHeight() (uint64, error)
GetMinimumHeight(context.Context) (uint64, error)
}
// GetValidatorOutput contains validator information
type GetValidatorOutput struct {
NodeID ids.NodeID
PublicKey []byte
Weight uint64
}
// Keystore provides key management
type Keystore interface {
GetDatabase(username, password string) (interface{}, error)
NewAccount(username, password string) error
}
// BlockchainIDLookup provides blockchain ID lookup
type BlockchainIDLookup interface {
Lookup(alias string) (ids.ID, error)
}
// Metrics provides metrics tracking
type Metrics interface {
Register(namespace string, registerer interface{}) error
}
// GetTimestamp returns the current timestamp
func GetTimestamp() int64 <span class="cov0" title="0">{
return time.Now().Unix()
}</span>
// GetChainID gets the chain ID from context
func GetChainID(ctx context.Context) ids.ID <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.ChainID
}</span>
<span class="cov0" title="0">return ids.Empty</span>
}
// GetNetID gets the network ID from context
func GetNetID(ctx context.Context) ids.ID <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.NetID
}</span>
<span class="cov0" title="0">return ids.Empty</span>
}
// Deprecated: GetSubnetID is deprecated, use GetNetID instead
func GetSubnetID(ctx context.Context) ids.ID <span class="cov0" title="0">{
// Direct implementation to avoid calling deprecated functions
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.NetID
}</span>
<span class="cov0" title="0">return ids.Empty</span>
}
// GetNetworkID gets the network ID from context
func GetNetworkID(ctx context.Context) uint32 <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.QuantumID
}</span>
<span class="cov0" title="0">return 0</span>
}
// GetValidatorState gets the validator state from context
func GetValidatorState(ctx context.Context) ValidatorState <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.ValidatorState
}</span>
<span class="cov0" title="0">return nil</span>
}
// WithContext adds consensus context to a context
func WithContext(ctx context.Context, cc *Context) context.Context <span class="cov0" title="0">{
return context.WithValue(ctx, contextKey, cc)
}</span>
// FromContext extracts consensus context from a context
func FromContext(ctx context.Context) *Context <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c
}</span>
<span class="cov0" title="0">return nil</span>
}
// GetNodeID gets the node ID from context
func GetNodeID(ctx context.Context) ids.NodeID <span class="cov0" title="0">{
if c, ok := ctx.Value(contextKey).(*Context); ok </span><span class="cov0" title="0">{
return c.NodeID
}</span>
<span class="cov0" title="0">return ids.EmptyNodeID</span>
}
// IDs holds the IDs for consensus context
type IDs struct {
// NetworkID is the network identifier
NetworkID uint32
// QuantumID is the root quantum network identifier
QuantumID uint32
// NetID identifies the network within the quantum network
NetID ids.ID
// ChainID identifies the chain within the network
ChainID ids.ID
NodeID ids.NodeID
PublicKey []byte
// LUXAssetID is the asset ID for LUX
LUXAssetID ids.ID
}
// WithIDs adds IDs to the context
func WithIDs(ctx context.Context, ids IDs) context.Context <span class="cov0" title="0">{
c := FromContext(ctx)
if c == nil </span><span class="cov0" title="0">{
c = &amp;Context{}
}</span>
<span class="cov0" title="0">c.QuantumID = ids.QuantumID
c.NetID = ids.NetID
c.ChainID = ids.ChainID
c.NodeID = ids.NodeID
c.PublicKey = ids.PublicKey
return WithContext(ctx, c)</span>
}
// WithValidatorState adds validator state to the context
func WithValidatorState(ctx context.Context, vs ValidatorState) context.Context <span class="cov0" title="0">{
c := FromContext(ctx)
if c == nil </span><span class="cov0" title="0">{
c = &amp;Context{}
}</span>
<span class="cov0" title="0">c.ValidatorState = vs
return WithContext(ctx, c)</span>
}
type contextKeyType struct{}
var contextKey = contextKeyType{}
</pre>
<pre class="file" id="file18" style="display: none">package consensus
import (
"github.com/luxfi/ids"
)
// Fx represents a feature extension
type Fx interface {
Initialize(interface{}) error
}
// State represents consensus state
type State interface {
GetTimestamp() int64
SetTimestamp(int64)
}
// AcceptorGroup manages a group of acceptors
type AcceptorGroup interface {
RegisterAcceptor(chainID ids.ID, acceptorName string, acceptor Acceptor, dieOnError bool) error
DeregisterAcceptor(chainID ids.ID, acceptorName string) error
}
// acceptorGroupImpl implements AcceptorGroup
type acceptorGroupImpl struct {
// Add fields as needed
}
// NewAcceptorGroup creates a new acceptor group
func NewAcceptorGroup() AcceptorGroup <span class="cov0" title="0">{
return &amp;acceptorGroupImpl{}
}</span>
// RegisterAcceptor registers an acceptor
func (a *acceptorGroupImpl) RegisterAcceptor(chainID ids.ID, acceptorName string, acceptor Acceptor, dieOnError bool) error <span class="cov0" title="0">{
return nil
}</span>
// DeregisterAcceptor deregisters an acceptor
func (a *acceptorGroupImpl) DeregisterAcceptor(chainID ids.ID, acceptorName string) error <span class="cov0" title="0">{
return nil
}</span>
// QuantumIDs contains various quantum network and chain IDs
type QuantumIDs struct {
// QuantumID is the root quantum network identifier
QuantumID uint32
NodeID ids.NodeID
// NetID identifies networks within the quantum network
NetID ids.ID
ChainID ids.ID
// P-Chain is the quantum validation chain
PChainID ids.ID
XChainID ids.ID
CChainID ids.ID
AVAXAssetID ids.ID
}
</pre>
<pre class="file" id="file19" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package core
import "fmt"
// AppError represents an application error
type AppError struct {
Code int32
Message string
}
// Error implements the error interface
func (e *AppError) Error() string <span class="cov0" title="0">{
return fmt.Sprintf("app error %d: %s", e.Code, e.Message)
}</span>
</pre>
<pre class="file" id="file20" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package appsender
import (
"context"
"github.com/luxfi/consensus/utils/set"
"github.com/luxfi/ids"
)
// FakeSender is a fake implementation of AppSender for testing
type FakeSender struct {
SentAppRequest []byte
SentAppGossip []byte
SentCrossChainAppRequest []byte
}
func (f *FakeSender) SendAppRequest(ctx context.Context, nodeIDs set.Set[ids.NodeID], requestID uint32, appRequestBytes []byte) error <span class="cov0" title="0">{
f.SentAppRequest = appRequestBytes
return nil
}</span>
func (f *FakeSender) SendAppResponse(ctx context.Context, nodeID ids.NodeID, requestID uint32, appResponseBytes []byte) error <span class="cov0" title="0">{
return nil
}</span>
func (f *FakeSender) SendAppError(ctx context.Context, nodeID ids.NodeID, requestID uint32, errorCode int32, errorMessage string) error <span class="cov0" title="0">{
return nil
}</span>
func (f *FakeSender) SendAppGossip(ctx context.Context, nodeIDs set.Set[ids.NodeID], appGossipBytes []byte) error <span class="cov0" title="0">{
f.SentAppGossip = appGossipBytes
return nil
}</span>
func (f *FakeSender) SendAppGossipSpecific(ctx context.Context, nodeIDs set.Set[ids.NodeID], appGossipBytes []byte) error <span class="cov0" title="0">{
f.SentAppGossip = appGossipBytes
return nil
}</span>
func (f *FakeSender) SendCrossChainAppRequest(ctx context.Context, chainID ids.ID, requestID uint32, appRequestBytes []byte) error <span class="cov0" title="0">{
f.SentCrossChainAppRequest = appRequestBytes
return nil
}</span>
func (f *FakeSender) SendCrossChainAppResponse(ctx context.Context, chainID ids.ID, requestID uint32, appResponseBytes []byte) error <span class="cov0" title="0">{
return nil
}</span>
func (f *FakeSender) SendCrossChainAppError(ctx context.Context, chainID ids.ID, requestID uint32, errorCode int32, errorMessage string) error <span class="cov0" title="0">{
return nil
}</span>
</pre>
<pre class="file" id="file21" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
// Package coremock provides mock implementations for testing
package coremock
import (
"context"
"sync"
"github.com/luxfi/consensus/utils/set"
"github.com/luxfi/ids"
)
// MockAppSender is a mock implementation of AppSender
type MockAppSender struct {
mu sync.RWMutex
SendAppRequestF func(context.Context, set.Set[ids.NodeID], uint32, []byte) error
SendAppResponseF func(context.Context, ids.NodeID, uint32, []byte) error
SendAppErrorF func(context.Context, ids.NodeID, uint32, int32, string) error
SendAppGossipF func(context.Context, set.Set[ids.NodeID], []byte) error
SendAppGossipSpecificF func(context.Context, set.Set[ids.NodeID], []byte) error
}
// NewMockAppSender creates a new mock AppSender
func NewMockAppSender(ctrl interface{}) *MockAppSender <span class="cov0" title="0">{
return &amp;MockAppSender{}
}</span>
// SendAppRequest implements AppSender
func (m *MockAppSender) SendAppRequest(ctx context.Context, nodeIDs set.Set[ids.NodeID], requestID uint32, appRequestBytes []byte) error <span class="cov0" title="0">{
m.mu.RLock()
defer m.mu.RUnlock()
if m.SendAppRequestF != nil </span><span class="cov0" title="0">{
return m.SendAppRequestF(ctx, nodeIDs, requestID, appRequestBytes)
}</span>
<span class="cov0" title="0">return nil</span>
}
// SendAppResponse implements AppSender
func (m *MockAppSender) SendAppResponse(ctx context.Context, nodeID ids.NodeID, requestID uint32, appResponseBytes []byte) error <span class="cov0" title="0">{
m.mu.RLock()
defer m.mu.RUnlock()
if m.SendAppResponseF != nil </span><span class="cov0" title="0">{
return m.SendAppResponseF(ctx, nodeID, requestID, appResponseBytes)
}</span>
<span class="cov0" title="0">return nil</span>
}
// SendAppError implements AppSender
func (m *MockAppSender) SendAppError(ctx context.Context, nodeID ids.NodeID, requestID uint32, errorCode int32, errorMessage string) error <span class="cov0" title="0">{
m.mu.RLock()
defer m.mu.RUnlock()
if m.SendAppErrorF != nil </span><span class="cov0" title="0">{
return m.SendAppErrorF(ctx, nodeID, requestID, errorCode, errorMessage)
}</span>
<span class="cov0" title="0">return nil</span>
}
// SendAppGossip implements AppSender
func (m *MockAppSender) SendAppGossip(ctx context.Context, nodeIDs set.Set[ids.NodeID], appGossipBytes []byte) error <span class="cov0" title="0">{
m.mu.RLock()
defer m.mu.RUnlock()
if m.SendAppGossipF != nil </span><span class="cov0" title="0">{
return m.SendAppGossipF(ctx, nodeIDs, appGossipBytes)
}</span>
<span class="cov0" title="0">return nil</span>
}
// SendAppGossipSpecific implements AppSender
func (m *MockAppSender) SendAppGossipSpecific(ctx context.Context, nodeIDs set.Set[ids.NodeID], appGossipBytes []byte) error <span class="cov0" title="0">{
m.mu.RLock()
defer m.mu.RUnlock()
if m.SendAppGossipSpecificF != nil </span><span class="cov0" title="0">{
return m.SendAppGossipSpecificF(ctx, nodeIDs, appGossipBytes)
}</span>
<span class="cov0" title="0">return nil</span>
}
// EXPECT returns mock expectation handler
func (m *MockAppSender) EXPECT() *MockAppSenderExpects <span class="cov0" title="0">{
return &amp;MockAppSenderExpects{mock: m}
}</span>
// MockAppSenderExpects handles expectations
type MockAppSenderExpects struct {
mock *MockAppSender
}
// SendAppRequest sets expectation for SendAppRequest
func (e *MockAppSenderExpects) SendAppRequest() *MockAppSenderCall <span class="cov0" title="0">{
return &amp;MockAppSenderCall{mock: e.mock}
}</span>
// MockAppSenderCall represents a mock call
type MockAppSenderCall struct {
mock *MockAppSender
}
// Times sets the number of times the call is expected
func (c *MockAppSenderCall) Times(n int) *MockAppSenderCall <span class="cov0" title="0">{
return c
}</span>
// Return sets the return value
func (c *MockAppSenderCall) Return(err error) *MockAppSenderCall <span class="cov0" title="0">{
return c
}</span>
</pre>
<pre class="file" id="file22" style="display: none">package dag
// Decision represents the outcome of cert/skip analysis
type Decision int
const (
DecideUndecided Decision = iota
DecideCommit // Certificate found - vertex should be committed
DecideSkip // Skip certificate found - vertex should be skipped
)
// Cert: &gt;=2f+1 in r+1 support proposer(author,round). Skip: &gt;=2f+1 in r+1 not supporting.
func HasCertificate(v View, proposer Meta, p Params) bool <span class="cov0" title="0">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
support := 0
for _, m := range next </span><span class="cov0" title="0">{
if v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov0" title="0">{
support++
if support &gt;= 2*p.F+1 </span><span class="cov0" title="0">{
return true
}</span>
}
}
<span class="cov0" title="0">return false</span>
}
func HasSkip(v View, proposer Meta, p Params) bool <span class="cov0" title="0">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
nos := 0
for _, m := range next </span><span class="cov0" title="0">{
if !v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov0" title="0">{
nos++
if nos &gt;= 2*p.F+1 </span><span class="cov0" title="0">{
return true
}</span>
}
}
<span class="cov0" title="0">return false</span>
}
type Flare struct{ p Params }
func NewFlare(p Params) *Flare <span class="cov0" title="0">{ return &amp;Flare{p: p} }</span>
func (f *Flare) Classify(v View, proposer Meta) Decision <span class="cov0" title="0">{
switch </span>{
case HasCertificate(v, proposer, f.p):<span class="cov0" title="0">
return DecideCommit</span>
case HasSkip(v, proposer, f.p):<span class="cov0" title="0">
return DecideSkip</span>
default:<span class="cov0" title="0">
return DecideUndecided</span>
}
}
// Generic versions for new protocol interfaces
// HasCertificateGeneric checks if a vertex has a certificate (≥2f+1 validators support it)
func HasCertificateGeneric[V VID](store Store[V], vertex V, params Params) bool <span class="cov0" title="0">{
// TODO: Implement certificate detection
// A vertex has a certificate if ≥2f+1 vertices in the next round reference it
// This indicates strong support from honest validators
return false
}</span>
// HasSkipGeneric checks if a vertex has a skip certificate (≥2f+1 validators do not support it)
func HasSkipGeneric[V VID](store Store[V], vertex V, params Params) bool <span class="cov0" title="0">{
// TODO: Implement skip detection
// A vertex has a skip certificate if ≥2f+1 vertices in the next round do NOT reference it
// This indicates the vertex should be skipped/rejected
return false
}</span>
// ClassifyGeneric determines the status of a vertex based on cert/skip analysis
func ClassifyGeneric[V VID](store Store[V], vertex V, params Params) Decision <span class="cov0" title="0">{
switch </span>{
case HasCertificateGeneric(store, vertex, params):<span class="cov0" title="0">
return DecideCommit</span>
case HasSkipGeneric(store, vertex, params):<span class="cov0" title="0">
return DecideSkip</span>
default:<span class="cov0" title="0">
return DecideUndecided</span>
}
}
// ComputeFinalizableSet returns vertices that can be finalized based on cert/skip analysis
func ComputeFinalizableSet[V VID](store Store[V], candidates []V, params Params) []V <span class="cov0" title="0">{
var finalizable []V
for _, v := range candidates </span><span class="cov0" title="0">{
if ClassifyGeneric(store, v, params) == DecideCommit </span><span class="cov0" title="0">{
finalizable = append(finalizable, v)
}</span>
}
<span class="cov0" title="0">return finalizable</span>
}
// UpdateDAGFrontier computes the new frontier after finalizing a set of vertices
func UpdateDAGFrontier[V VID](store Store[V], finalized []V) []V <span class="cov0" title="0">{
// TODO: Implement frontier update logic
// After finalizing vertices, compute the new frontier (tips) of the DAG
return []V{}
}</span>
</pre>
<pre class="file" id="file23" style="display: none">package dag
// VertexID represents a vertex identifier in the DAG
type VertexID [32]byte
// Meta interface represents metadata for a DAG vertex
type Meta interface {
ID() VertexID
Author() string
Round() uint64
Parents() []VertexID
}
// View interface provides access to DAG structure and vertex relationships
type View interface {
Get(VertexID) (Meta, bool)
ByRound(round uint64) []Meta
Supports(from VertexID, author string, round uint64) bool
}
// Params holds DAG consensus parameters
type Params struct{ N, F int }
// VID represents a generic vertex identifier for new protocol interfaces
type VID interface{ comparable }
// BlockView represents a view of a block/vertex in the DAG (generic version)
type BlockView[V VID] interface {
ID() V
Parents() []V
Author() string
Round() uint64
}
// Store represents DAG storage interface (generic version)
type Store[V VID] interface {
Head() []V
Get(V) (BlockView[V], bool)
Children(V) []V
}
// ComputeSafePrefix computes the safe prefix of vertices that can be committed
// based on DAG order theory using horizon (reachability) and flare (cert/skip) analysis
func ComputeSafePrefix[V VID](store Store[V], frontier []V) []V <span class="cov0" title="0">{
// TODO: Implement using horizon reachability analysis and flare cert/skip detection
// This should return vertices that have achieved finality according to DAG consensus rules
// Placeholder implementation - return empty for now
return []V{}
}</span>
// ChooseFrontier selects appropriate parents for a new vertex proposal
// This typically involves choosing a subset of frontier vertices to reference
func ChooseFrontier[V VID](frontier []V) []V <span class="cov0" title="0">{
// TODO: Implement frontier selection logic
// Common strategies:
// - Choose all recent vertices (small frontier)
// - Choose 2f+1 vertices for Byzantine tolerance
// - Choose based on validator weight or other criteria
// Placeholder implementation - return first few vertices
if len(frontier) &lt;= 3 </span><span class="cov0" title="0">{
return frontier
}</span>
<span class="cov0" title="0">return frontier[:3]</span>
}
// IsReachable checks if vertex 'from' can reach vertex 'to' in the DAG
func IsReachable[V VID](store Store[V], from, to V) bool <span class="cov0" title="0">{
// TODO: Implement reachability check using DFS/BFS
return false
}</span>
// LCA finds the lowest common ancestor of two vertices
func LCA[V VID](store Store[V], a, b V) V <span class="cov0" title="0">{
// TODO: Implement LCA algorithm
var zero V
return zero
}</span>
// Antichain computes an antichain (set of mutually unreachable vertices) in the DAG
func Antichain[V VID](store Store[V], vertices []V) []V <span class="cov0" title="0">{
// TODO: Implement antichain computation
return []V{}
}</span>
// EventHorizon represents the finality boundary in Quasar P-Chain consensus
// Beyond this horizon, no events can affect the finalized state
type EventHorizon[V VID] struct {
// Checkpoint represents a finalized state boundary
Checkpoint V
// Height at which this horizon was established
Height uint64
// Validators that signed this horizon
Validators []string
// Post-quantum signature (Corona + BLS)
Signature []byte
}
// Horizon computes the event horizon for Quasar P-Chain finality
// This determines which vertices are beyond the point of no return
func Horizon[V VID](store Store[V], checkpoints []EventHorizon[V]) EventHorizon[V] <span class="cov0" title="0">{
// TODO: Implement event horizon computation for P-Chain finality
// This should:
// 1. Analyze reachability from latest checkpoints
// 2. Find vertices that have achieved post-quantum finality
// 3. Establish new event horizon boundary
// Placeholder - return latest checkpoint
if len(checkpoints) &gt; 0 </span><span class="cov0" title="0">{
return checkpoints[len(checkpoints)-1]
}</span>
<span class="cov0" title="0">var zero EventHorizon[V]
return zero</span>
}
// BeyondHorizon checks if a vertex is beyond the event horizon (finalized)
func BeyondHorizon[V VID](store Store[V], vertex V, horizon EventHorizon[V]) bool <span class="cov0" title="0">{
// TODO: Implement horizon reachability check
// Vertices beyond the event horizon cannot be affected by future consensus
return IsReachable(store, horizon.Checkpoint, vertex)
}</span>
// ComputeHorizonOrder determines the canonical order of vertices beyond the event horizon
func ComputeHorizonOrder[V VID](store Store[V], horizon EventHorizon[V]) []V <span class="cov0" title="0">{
// TODO: Implement canonical ordering for finalized vertices
// This provides deterministic ordering for P-Chain state transitions
return []V{}
}</span>
</pre>
<pre class="file" id="file24" style="display: none">package core
import "context"
// HealthCheckable represents something that can report its health
type HealthCheckable interface {
// HealthCheck returns health information
HealthCheck(context.Context) (interface{}, error)
}
// HealthStatus represents health status
type HealthStatus int
const (
HealthUnknown HealthStatus = iota
HealthHealthy
HealthUnhealthy
)
// String returns the string representation
func (h HealthStatus) String() string <span class="cov0" title="0">{
switch h </span>{
case HealthHealthy:<span class="cov0" title="0">
return "healthy"</span>
case HealthUnhealthy:<span class="cov0" title="0">
return "unhealthy"</span>
default:<span class="cov0" title="0">
return "unknown"</span>
}
}
</pre>
<pre class="file" id="file25" style="display: none">package core
// Status represents the consensus status of an item
type Status int
const (
// StatusUnknown means the status is unknown
StatusUnknown Status = iota
// StatusPending means the item is pending decision
StatusPending
// StatusProcessing means the item is being processed
StatusProcessing
// StatusAccepted means the item has been accepted
StatusAccepted
// StatusRejected means the item has been rejected
StatusRejected
)
// String returns the string representation of the status
func (s Status) String() string <span class="cov0" title="0">{
switch s </span>{
case StatusPending:<span class="cov0" title="0">
return "pending"</span>
case StatusProcessing:<span class="cov0" title="0">
return "processing"</span>
case StatusAccepted:<span class="cov0" title="0">
return "accepted"</span>
case StatusRejected:<span class="cov0" title="0">
return "rejected"</span>
default:<span class="cov0" title="0">
return "unknown"</span>
}
}
// Decided returns true if the status represents a final decision
func (s Status) Decided() bool <span class="cov0" title="0">{
return s == StatusAccepted || s == StatusRejected
}</span>
</pre>
<pre class="file" id="file26" style="display: none">package core
import (
"context"
"github.com/luxfi/ids"
)
// TestDecidable is a test implementation of Decidable
type TestDecidable struct {
TestID ids.ID
TestStatus Status
AcceptFunc func(context.Context) error
RejectFunc func(context.Context) error
}
// NewTestDecidable creates a new test decidable
func NewTestDecidable(id ids.ID) *TestDecidable <span class="cov0" title="0">{
return &amp;TestDecidable{
TestID: id,
TestStatus: StatusPending,
AcceptFunc: func(context.Context) error </span><span class="cov0" title="0">{ return nil }</span>,
RejectFunc: func(context.Context) error <span class="cov0" title="0">{ return nil }</span>,
}
}
// ID returns the ID
func (t *TestDecidable) ID() ids.ID <span class="cov0" title="0">{
return t.TestID
}</span>
// Accept marks as accepted
func (t *TestDecidable) Accept(ctx context.Context) error <span class="cov0" title="0">{
if t.AcceptFunc != nil </span><span class="cov0" title="0">{
if err := t.AcceptFunc(ctx); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">t.TestStatus = StatusAccepted
return nil</span>
}
// Reject marks as rejected
func (t *TestDecidable) Reject(ctx context.Context) error <span class="cov0" title="0">{
if t.RejectFunc != nil </span><span class="cov0" title="0">{
if err := t.RejectFunc(ctx); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">t.TestStatus = StatusRejected
return nil</span>
}
// Status returns current status
func (t *TestDecidable) Status() Status <span class="cov0" title="0">{
return t.TestStatus
}</span>
</pre>
<pre class="file" id="file27" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
// Package tracker provides consensus tracking utilities
package tracker
import (
"sync"
"time"
"github.com/luxfi/ids"
)
// Tracker tracks consensus operations
type Tracker interface {
// Track starts tracking an operation
Track(id ids.ID) time.Time
// Stop stops tracking an operation
Stop(id ids.ID) time.Duration
// IsTracked checks if an operation is being tracked
IsTracked(id ids.ID) bool
// Len returns the number of tracked operations
Len() int
}
// TimeTracker tracks operation times
type TimeTracker struct {
mu sync.RWMutex
starts map[ids.ID]time.Time
}
// NewTimeTracker creates a new time tracker
func NewTimeTracker() *TimeTracker <span class="cov0" title="0">{
return &amp;TimeTracker{
starts: make(map[ids.ID]time.Time),
}
}</span>
// Track starts tracking an operation
func (t *TimeTracker) Track(id ids.ID) time.Time <span class="cov0" title="0">{
t.mu.Lock()
defer t.mu.Unlock()
now := time.Now()
t.starts[id] = now
return now
}</span>
// Stop stops tracking an operation
func (t *TimeTracker) Stop(id ids.ID) time.Duration <span class="cov0" title="0">{
t.mu.Lock()
defer t.mu.Unlock()
start, ok := t.starts[id]
if !ok </span><span class="cov0" title="0">{
return 0
}</span>
<span class="cov0" title="0">delete(t.starts, id)
return time.Since(start)</span>
}
// IsTracked checks if an operation is being tracked
func (t *TimeTracker) IsTracked(id ids.ID) bool <span class="cov0" title="0">{
t.mu.RLock()
defer t.mu.RUnlock()
_, ok := t.starts[id]
return ok
}</span>
// Len returns the number of tracked operations
func (t *TimeTracker) Len() int <span class="cov0" title="0">{
t.mu.RLock()
defer t.mu.RUnlock()
return len(t.starts)
}</span>
</pre>
<pre class="file" id="file28" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package core
import (
"context"
"net/http"
"github.com/luxfi/consensus/snow"
"github.com/luxfi/database/manager"
"github.com/luxfi/ids"
)
// VM defines the interface that all VMs must implement
type VM interface {
// Initialize initializes the VM
Initialize(
ctx context.Context,
chainCtx *snow.Context,
dbManager manager.Manager,
genesisBytes []byte,
upgradeBytes []byte,
configBytes []byte,
toEngine chan&lt;- Message,
fxs []*Fx,
appSender interface{}, // AppSender interface from appsender package
) error
// SetState sets the state of the VM
SetState(ctx context.Context, state snow.State) error
// Shutdown shuts down the VM
Shutdown(ctx context.Context) error
// Version returns the version of the VM
Version(ctx context.Context) (string, error)
// HealthCheck returns nil if the VM is healthy
HealthCheck(ctx context.Context) (interface{}, error)
// CreateHandlers returns the HTTP handlers for the VM
CreateHandlers(ctx context.Context) (map[string]http.Handler, error)
// CreateStaticHandlers returns the static HTTP handlers for the VM
CreateStaticHandlers(ctx context.Context) (map[string]http.Handler, error)
}
// Message defines a message that can be sent to the consensus engine
type Message struct {
Type MessageType
NodeID ids.NodeID
Content []byte
}
// MessageType defines the type of a message
type MessageType uint32
// String returns the string representation of the message type
func (m MessageType) String() string <span class="cov0" title="0">{
switch m </span>{
case PendingTxs:<span class="cov0" title="0">
return "PendingTxs"</span>
case PutBlock:<span class="cov0" title="0">
return "PutBlock"</span>
case GetBlock:<span class="cov0" title="0">
return "GetBlock"</span>
case GetAccepted:<span class="cov0" title="0">
return "GetAccepted"</span>
case Accepted:<span class="cov0" title="0">
return "Accepted"</span>
case GetAncestors:<span class="cov0" title="0">
return "GetAncestors"</span>
case MultiPut:<span class="cov0" title="0">
return "MultiPut"</span>
case GetFailed:<span class="cov0" title="0">
return "GetFailed"</span>
case QueryFailed:<span class="cov0" title="0">
return "QueryFailed"</span>
case Chits:<span class="cov0" title="0">
return "Chits"</span>
case ChitsV2:<span class="cov0" title="0">
return "ChitsV2"</span>
case GetAcceptedFrontier:<span class="cov0" title="0">
return "GetAcceptedFrontier"</span>
case AcceptedFrontier:<span class="cov0" title="0">
return "AcceptedFrontier"</span>
case GetAcceptedFrontierFailed:<span class="cov0" title="0">
return "GetAcceptedFrontierFailed"</span>
case AppRequest:<span class="cov0" title="0">
return "AppRequest"</span>
case AppResponse:<span class="cov0" title="0">
return "AppResponse"</span>
case AppGossip:<span class="cov0" title="0">
return "AppGossip"</span>
default:<span class="cov0" title="0">
return "Unknown"</span>
}
}
const (
// PendingTxs indicates pending transactions
PendingTxs MessageType = iota
// PutBlock indicates a block to be added
PutBlock
// GetBlock indicates a request for a block
GetBlock
// GetAccepted indicates a request for accepted blocks
GetAccepted
// Accepted indicates an accepted block
Accepted
// GetAncestors indicates a request for ancestors
GetAncestors
// MultiPut indicates multiple blocks
MultiPut
// GetFailed indicates a failed get request
GetFailed
// QueryFailed indicates a failed query
QueryFailed
// Chits indicates chits
Chits
// ChitsV2 indicates chits v2
ChitsV2
// GetAcceptedFrontier indicates a request for the accepted frontier
GetAcceptedFrontier
// AcceptedFrontier indicates the accepted frontier
AcceptedFrontier
// GetAcceptedFrontierFailed indicates a failed frontier request
GetAcceptedFrontierFailed
// AppRequest indicates an app request
AppRequest
// AppResponse indicates an app response
AppResponse
// AppGossip indicates app gossip
AppGossip
)
// Fx defines a feature extension
type Fx struct {
ID ids.ID
Fx interface{}
}
</pre>
<pre class="file" id="file29" style="display: none">// Package blockmock provides mock implementations for testing
package blockmock
import (
"context"
"time"
)
// MockBlock provides a mock implementation for testing
type MockBlock struct {
id []byte
height uint64
parent []byte
accepted bool
}
// NewMockBlock creates a new mock block
func NewMockBlock(id []byte, height uint64, parent []byte) *MockBlock <span class="cov0" title="0">{
return &amp;MockBlock{
id: id,
height: height,
parent: parent,
}
}</span>
// ID returns the block ID
func (m *MockBlock) ID() []byte <span class="cov0" title="0">{
return m.id
}</span>
// Height returns the block height
func (m *MockBlock) Height() uint64 <span class="cov0" title="0">{
return m.height
}</span>
// Parent returns the parent block ID
func (m *MockBlock) Parent() []byte <span class="cov0" title="0">{
return m.parent
}</span>
// Accept marks the block as accepted
func (m *MockBlock) Accept(ctx context.Context) error <span class="cov0" title="0">{
m.accepted = true
return nil
}</span>
// Reject marks the block as rejected
func (m *MockBlock) Reject(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Status returns the block status
func (m *MockBlock) Status() int <span class="cov0" title="0">{
if m.accepted </span><span class="cov0" title="0">{
return 2 // Accepted
}</span>
<span class="cov0" title="0">return 0</span> // Processing
}
// Timestamp returns the block timestamp
func (m *MockBlock) Timestamp() time.Time <span class="cov0" title="0">{
return time.Now()
}</span>
// Bytes returns the block bytes
func (m *MockBlock) Bytes() []byte <span class="cov0" title="0">{
return m.id
}</span>
</pre>
<pre class="file" id="file30" style="display: none">// Package blocktest provides test utilities for blocks
package blocktest
import (
"context"
"time"
"github.com/luxfi/consensus/consensustest"
"github.com/luxfi/ids"
)
// Block provides a full test implementation for blocks
type Block struct {
consensustest.Decidable
HeightV uint64
ParentV ids.ID
BytesV []byte
TimestampV time.Time
StatusV uint8
VerifyV error
AcceptV error
RejectV error
}
// Height returns the block height
func (b *Block) Height() uint64 <span class="cov0" title="0">{
return b.HeightV
}</span>
// Parent returns the parent block ID
func (b *Block) Parent() ids.ID <span class="cov0" title="0">{
return b.ParentV
}</span>
// ParentID returns the parent block ID
func (b *Block) ParentID() ids.ID <span class="cov0" title="0">{
return b.ParentV
}</span>
// Bytes returns the block bytes
func (b *Block) Bytes() []byte <span class="cov0" title="0">{
return b.BytesV
}</span>
// Timestamp returns the block timestamp
func (b *Block) Timestamp() time.Time <span class="cov0" title="0">{
if b.TimestampV.IsZero() </span><span class="cov0" title="0">{
return time.Now()
}</span>
<span class="cov0" title="0">return b.TimestampV</span>
}
// Status returns the block status as uint8
func (b *Block) Status() uint8 <span class="cov0" title="0">{
return b.StatusV
}</span>
// Verify verifies the block
func (b *Block) Verify(ctx context.Context) error <span class="cov0" title="0">{
if b.VerifyV != nil </span><span class="cov0" title="0">{
return b.VerifyV
}</span>
<span class="cov0" title="0">return nil</span>
}
// Accept accepts the block
func (b *Block) Accept(ctx context.Context) error <span class="cov0" title="0">{
if b.AcceptV != nil </span><span class="cov0" title="0">{
return b.AcceptV
}</span>
<span class="cov0" title="0">err := b.Decidable.Accept(ctx)
if err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">b.StatusV = consensustest.Accepted
return nil</span>
}
// Reject rejects the block
func (b *Block) Reject(ctx context.Context) error <span class="cov0" title="0">{
if b.RejectV != nil </span><span class="cov0" title="0">{
return b.RejectV
}</span>
<span class="cov0" title="0">err := b.Decidable.Reject(ctx)
if err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">b.StatusV = consensustest.Rejected
return nil</span>
}
// TestBlock provides a test implementation for blocks (deprecated, use Block)
type TestBlock struct {
id []byte
height uint64
parent []byte
}
// NewTestBlock creates a new test block
func NewTestBlock(id []byte, height uint64, parent []byte) *TestBlock <span class="cov0" title="0">{
return &amp;TestBlock{
id: id,
height: height,
parent: parent,
}
}</span>
// ID returns the block ID
func (t *TestBlock) ID() []byte <span class="cov0" title="0">{
return t.id
}</span>
// Height returns the block height
func (t *TestBlock) Height() uint64 <span class="cov0" title="0">{
return t.height
}</span>
// Parent returns the parent block ID
func (t *TestBlock) Parent() []byte <span class="cov0" title="0">{
return t.parent
}</span>
// Accept marks the block as accepted
func (t *TestBlock) Accept(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Reject marks the block as rejected
func (t *TestBlock) Reject(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Timestamp returns the block timestamp
func (t *TestBlock) Timestamp() time.Time <span class="cov0" title="0">{
return time.Now()
}</span>
// Bytes returns the block bytes
func (t *TestBlock) Bytes() []byte <span class="cov0" title="0">{
return t.id
}</span>
</pre>
<pre class="file" id="file31" style="display: none">package bootstrap
import (
"context"
"github.com/luxfi/ids"
)
// Version represents protocol version
type Version uint32
// Bootstrapper bootstraps a chain
type Bootstrapper interface {
// Start starts bootstrapping
Start(context.Context, uint32) error
// Connected notifies the bootstrapper of a connected validator
Connected(context.Context, ids.NodeID, Version) error
// Disconnected notifies the bootstrapper of a disconnected validator
Disconnected(context.Context, ids.NodeID) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
}
// Bootstrapper implementation
type bootstrapper struct {
started bool
}
// New creates a new bootstrapper
func New() Bootstrapper <span class="cov0" title="0">{
return &amp;bootstrapper{}
}</span>
// Start starts bootstrapping
func (b *bootstrapper) Start(ctx context.Context, requestID uint32) error <span class="cov0" title="0">{
b.started = true
return nil
}</span>
// Connected notifies the bootstrapper of a connected validator
func (b *bootstrapper) Connected(ctx context.Context, nodeID ids.NodeID, version Version) error <span class="cov0" title="0">{
return nil
}</span>
// Disconnected notifies the bootstrapper of a disconnected validator
func (b *bootstrapper) Disconnected(ctx context.Context, nodeID ids.NodeID) error <span class="cov0" title="0">{
return nil
}</span>
// HealthCheck performs a health check
func (b *bootstrapper) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]interface{}{"started": b.started}, nil
}</span>
</pre>
<pre class="file" id="file32" style="display: none">// Package chainmock provides mock implementations for testing
package chainmock
// MockChain provides a mock implementation for testing
type MockChain struct {
id []byte
height uint64
}
// NewMockChain creates a new mock chain
func NewMockChain(id []byte) *MockChain <span class="cov0" title="0">{
return &amp;MockChain{
id: id,
height: 0,
}
}</span>
// ID returns the chain ID
func (m *MockChain) ID() []byte <span class="cov0" title="0">{
return m.id
}</span>
// Height returns the current height
func (m *MockChain) Height() uint64 <span class="cov0" title="0">{
return m.height
}</span>
// SetHeight sets the chain height
func (m *MockChain) SetHeight(height uint64) <span class="cov0" title="0">{
m.height = height
}</span>
</pre>
<pre class="file" id="file33" style="display: none">// Package chaintest provides test utilities for chains
package chaintest
// TestChain provides a test implementation for chains
type TestChain struct {
id []byte
height uint64
}
// NewTestChain creates a new test chain
func NewTestChain(id []byte) *TestChain <span class="cov0" title="0">{
return &amp;TestChain{
id: id,
height: 0,
}
}</span>
// ID returns the chain ID
func (t *TestChain) ID() []byte <span class="cov0" title="0">{
return t.id
}</span>
// Height returns the current height
func (t *TestChain) Height() uint64 <span class="cov0" title="0">{
return t.height
}</span>
// SetHeight sets the chain height
func (t *TestChain) SetHeight(height uint64) <span class="cov0" title="0">{
t.height = height
}</span>
</pre>
<pre class="file" id="file34" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
// Package chaintest provides test utilities for chain testing
package chaintest
import (
"context"
"time"
"github.com/luxfi/consensus/consensustest"
"github.com/luxfi/ids"
)
// TestBlock is a mock block for testing
type TestBlock struct {
id ids.ID
parentID ids.ID
height uint64
bytes []byte
status uint8
timestamp time.Time
}
// ID returns the block ID
func (b *TestBlock) ID() ids.ID <span class="cov0" title="0">{
return b.id
}</span>
// Parent returns the parent block ID (alias for ParentID)
func (b *TestBlock) Parent() ids.ID <span class="cov0" title="0">{
return b.parentID
}</span>
// ParentID returns the parent block ID
func (b *TestBlock) ParentID() ids.ID <span class="cov0" title="0">{
return b.parentID
}</span>
// Height returns the block height
func (b *TestBlock) Height() uint64 <span class="cov0" title="0">{
return b.height
}</span>
// Timestamp returns the block timestamp
func (b *TestBlock) Timestamp() time.Time <span class="cov0" title="0">{
return b.timestamp
}</span>
// Bytes returns the block bytes
func (b *TestBlock) Bytes() []byte <span class="cov0" title="0">{
return b.bytes
}</span>
// Status returns the block status
func (b *TestBlock) Status() uint8 <span class="cov0" title="0">{
return b.status
}</span>
// Accept accepts the block
func (b *TestBlock) Accept(ctx context.Context) error <span class="cov0" title="0">{
b.status = consensustest.Accepted
return nil
}</span>
// Reject rejects the block
func (b *TestBlock) Reject(ctx context.Context) error <span class="cov0" title="0">{
b.status = consensustest.Rejected
return nil
}</span>
// Verify verifies the block
func (b *TestBlock) Verify(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Genesis is the genesis test block
var Genesis = &amp;TestBlock{
id: ids.GenerateTestID(),
parentID: ids.Empty,
height: 0,
bytes: []byte("genesis"),
status: consensustest.Accepted,
timestamp: time.Now(),
}
// BuildChild builds a child block
func BuildChild(parent *TestBlock) *TestBlock <span class="cov0" title="0">{
return &amp;TestBlock{
id: ids.GenerateTestID(),
parentID: parent.ID(),
height: parent.Height() + 1,
bytes: []byte("child"),
status: consensustest.Processing,
timestamp: time.Now(),
}
}</span>
// BuildChildWithTime builds a child block with timestamp
func BuildChildWithTime(parent *TestBlock, timestamp time.Time) *TestBlock <span class="cov0" title="0">{
return &amp;TestBlock{
id: ids.GenerateTestID(),
parentID: parent.ID(),
height: parent.Height() + 1,
bytes: append([]byte("child"), timestamp.Format(time.RFC3339)...),
status: consensustest.Processing,
timestamp: timestamp,
}
}</span>
</pre>
<pre class="file" id="file35" style="display: none">package chain
import (
"context"
"github.com/luxfi/ids"
)
// Engine defines the chain consensus engine
type Engine interface {
// Start starts the engine
Start(context.Context, uint32) error
// Stop stops the engine
Stop(context.Context) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
// IsBootstrapped returns whether the chain is bootstrapped
IsBootstrapped() bool
}
// Transitive implements transitive chain consensus
type Transitive struct {
bootstrapped bool
}
// Transport handles message transport for consensus
type Transport[ID comparable] interface {
// Send sends a message
Send(ctx context.Context, to string, msg interface{}) error
// Receive receives messages
Receive(ctx context.Context) (interface{}, error)
}
// New creates a new chain consensus engine
func New() *Transitive <span class="cov8" title="1">{
return &amp;Transitive{
bootstrapped: false,
}
}</span>
// Start starts the engine
func (t *Transitive) Start(ctx context.Context, requestID uint32) error <span class="cov8" title="1">{
t.bootstrapped = true
return nil
}</span>
// Stop stops the engine
func (t *Transitive) Stop(ctx context.Context) error <span class="cov8" title="1">{
return nil
}</span>
// HealthCheck performs a health check
func (t *Transitive) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov8" title="1">{
return map[string]interface{}{"healthy": true}, nil
}</span>
// IsBootstrapped returns whether the chain is bootstrapped
func (t *Transitive) IsBootstrapped() bool <span class="cov8" title="1">{
return t.bootstrapped
}</span>
// GetBlock gets a block by ID
func (t *Transitive) GetBlock(ctx context.Context, nodeID ids.NodeID, requestID uint32, blockID ids.ID) error <span class="cov8" title="1">{
return nil
}</span>
</pre>
<pre class="file" id="file36" style="display: none">package getter
import (
"context"
"github.com/luxfi/ids"
)
// Getter gets blocks
type Getter interface {
// Get gets a block
Get(context.Context, ids.NodeID, uint32, ids.ID) error
// GetAncestors gets ancestors
GetAncestors(context.Context, ids.NodeID, uint32, ids.ID, int) error
// Put puts a block
Put(context.Context, ids.NodeID, uint32, []byte) error
// PushQuery pushes a query
PushQuery(context.Context, ids.NodeID, uint32, []byte) error
// PullQuery pulls a query
PullQuery(context.Context, ids.NodeID, uint32, ids.ID) error
}
// getter implementation
type getter struct{}
// New creates a new getter
func New() Getter <span class="cov0" title="0">{
return &amp;getter{}
}</span>
// Get gets a block
func (g *getter) Get(ctx context.Context, nodeID ids.NodeID, requestID uint32, blockID ids.ID) error <span class="cov0" title="0">{
return nil
}</span>
// GetAncestors gets ancestors
func (g *getter) GetAncestors(ctx context.Context, nodeID ids.NodeID, requestID uint32, blockID ids.ID, maxBlocks int) error <span class="cov0" title="0">{
return nil
}</span>
// Put puts a block
func (g *getter) Put(ctx context.Context, nodeID ids.NodeID, requestID uint32, block []byte) error <span class="cov0" title="0">{
return nil
}</span>
// PushQuery pushes a query
func (g *getter) PushQuery(ctx context.Context, nodeID ids.NodeID, requestID uint32, block []byte) error <span class="cov0" title="0">{
return nil
}</span>
// PullQuery pulls a query
func (g *getter) PullQuery(ctx context.Context, nodeID ids.NodeID, requestID uint32, blockID ids.ID) error <span class="cov0" title="0">{
return nil
}</span>
</pre>
<pre class="file" id="file37" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
//go:build cgo &amp;&amp; !zmq
// +build cgo,!zmq
package core
// cgoAvailable returns true when CGO is enabled (but ZMQ is not required)
func cgoAvailable() bool <span class="cov0" title="0">{
return true
}</span>
</pre>
<pre class="file" id="file38" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
//go:build cgo
// +build cgo
package core
import (
"sync"
"sync/atomic"
"github.com/luxfi/ids"
)
// CGOConsensus is a CGO-based implementation of consensus
// For now, it's the same as the pure Go implementation
type CGOConsensus struct {
mu sync.RWMutex
preference atomic.Value // ids.ID
finalized atomic.Bool
// Cache for blocks
blockCache map[ids.ID]*cachedBlock
cacheMu sync.RWMutex
// Store parameters for later retrieval
params ConsensusParams
// Consensus state
accepted map[ids.ID]bool
}
// cachedBlock stores block data
type cachedBlock struct {
id ids.ID
parentID ids.ID
height uint64
timestamp int64
data []byte
status BlockStatus
}
// NewCGOConsensus creates a new CGO consensus engine
func NewCGOConsensus(params ConsensusParams) (*CGOConsensus, error) <span class="cov8" title="1">{
c := &amp;CGOConsensus{
blockCache: make(map[ids.ID]*cachedBlock, params.MaxOutstandingItems),
params: params,
accepted: make(map[ids.ID]bool),
}
// Set initial preference to empty ID
c.preference.Store(ids.Empty)
return c, nil
}</span>
// Add adds a block to consensus
func (c *CGOConsensus) Add(block Block) error <span class="cov8" title="1">{
c.cacheMu.Lock()
defer c.cacheMu.Unlock()
blockID := block.ID()
// Cache the block
c.blockCache[blockID] = &amp;cachedBlock{
id: blockID,
parentID: block.ParentID(),
height: block.Height(),
timestamp: block.Timestamp(),
data: block.Bytes(),
status: StatusProcessing,
}
// Update preference to latest block
c.preference.Store(blockID)
return nil
}</span>
// RecordPoll records a poll result
func (c *CGOConsensus) RecordPoll(blockID ids.ID, accept bool) error <span class="cov8" title="1">{
c.mu.Lock()
defer c.mu.Unlock()
if accept </span><span class="cov8" title="1">{
c.accepted[blockID] = true
}</span>
<span class="cov8" title="1">return nil</span>
}
// IsAccepted checks if a block is accepted
func (c *CGOConsensus) IsAccepted(blockID ids.ID) bool <span class="cov8" title="1">{
c.mu.RLock()
defer c.mu.RUnlock()
return c.accepted[blockID]
}</span>
// GetPreference returns the current preference
func (c *CGOConsensus) GetPreference() ids.ID <span class="cov8" title="1">{
pref := c.preference.Load()
if pref == nil </span><span class="cov0" title="0">{
return ids.Empty
}</span>
<span class="cov8" title="1">return pref.(ids.ID)</span>
}
// Finalized checks if consensus is finalized
func (c *CGOConsensus) Finalized() bool <span class="cov8" title="1">{
return c.finalized.Load()
}</span>
// Parameters returns consensus parameters
func (c *CGOConsensus) Parameters() ConsensusParams <span class="cov8" title="1">{
return c.params
}</span>
// HealthCheck performs a health check
func (c *CGOConsensus) HealthCheck() error <span class="cov8" title="1">{
return nil
}</span>
</pre>
<pre class="file" id="file39" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
//go:build cgo
// +build cgo
package core
// ConsensusFactory creates the appropriate consensus implementation
// This is the CGO version when CGO is enabled
type ConsensusFactory struct{}
// NewConsensusFactory creates a new consensus factory
func NewConsensusFactory() *ConsensusFactory <span class="cov0" title="0">{
return &amp;ConsensusFactory{}
}</span>
// CreateConsensus creates a consensus engine instance
func (f *ConsensusFactory) CreateConsensus(params ConsensusParams) (Consensus, error) <span class="cov0" title="0">{
// Use the existing consensus implementation
return NewCGOConsensus(params)
}</span>
</pre>
<pre class="file" id="file40" style="display: none">package common
import "errors"
// Common errors
var (
ErrUndefined = errors.New("undefined error")
)
// AppError represents an application error
type AppError struct {
Code int32
Message string
}
// Error returns the error message
func (e *AppError) Error() string <span class="cov0" title="0">{
return e.Message
}</span>
</pre>
<pre class="file" id="file41" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package common
import "github.com/luxfi/ids"
// Message represents a network message
type Message struct {
Type MessageType
NodeID ids.NodeID
Content []byte
}
// MessageType defines the type of a message
type MessageType uint32
// String returns the string representation of the message type
func (m MessageType) String() string <span class="cov0" title="0">{
switch m </span>{
case PendingTxs:<span class="cov0" title="0">
return "PendingTxs"</span>
case PutBlock:<span class="cov0" title="0">
return "PutBlock"</span>
case GetBlock:<span class="cov0" title="0">
return "GetBlock"</span>
case GetAccepted:<span class="cov0" title="0">
return "GetAccepted"</span>
case Accepted:<span class="cov0" title="0">
return "Accepted"</span>
case GetAncestors:<span class="cov0" title="0">
return "GetAncestors"</span>
case MultiPut:<span class="cov0" title="0">
return "MultiPut"</span>
case GetFailed:<span class="cov0" title="0">
return "GetFailed"</span>
case QueryFailed:<span class="cov0" title="0">
return "QueryFailed"</span>
case Chits:<span class="cov0" title="0">
return "Chits"</span>
case ChitsV2:<span class="cov0" title="0">
return "ChitsV2"</span>
case GetAcceptedFrontier:<span class="cov0" title="0">
return "GetAcceptedFrontier"</span>
case AcceptedFrontier:<span class="cov0" title="0">
return "AcceptedFrontier"</span>
case GetAcceptedFrontierFailed:<span class="cov0" title="0">
return "GetAcceptedFrontierFailed"</span>
case AppRequest:<span class="cov0" title="0">
return "AppRequest"</span>
case AppResponse:<span class="cov0" title="0">
return "AppResponse"</span>
case AppGossip:<span class="cov0" title="0">
return "AppGossip"</span>
default:<span class="cov0" title="0">
return "Unknown"</span>
}
}
const (
// PendingTxs indicates pending transactions
PendingTxs MessageType = iota
// PutBlock indicates a block to be added
PutBlock
// GetBlock indicates a request for a block
GetBlock
// GetAccepted indicates a request for accepted blocks
GetAccepted
// Accepted indicates an accepted block
Accepted
// GetAncestors indicates a request for ancestors
GetAncestors
// MultiPut indicates multiple blocks
MultiPut
// GetFailed indicates a failed get request
GetFailed
// QueryFailed indicates a failed query
QueryFailed
// Chits indicates chits message
Chits
// ChitsV2 indicates chits v2 message
ChitsV2
// GetAcceptedFrontier indicates a request for accepted frontier
GetAcceptedFrontier
// AcceptedFrontier indicates accepted frontier
AcceptedFrontier
// GetAcceptedFrontierFailed indicates a failed frontier request
GetAcceptedFrontierFailed
// AppRequest indicates an app request
AppRequest
// AppResponse indicates an app response
AppResponse
// AppGossip indicates app gossip
AppGossip
)
</pre>
<pre class="file" id="file42" style="display: none">// Package coremock provides mock implementations for core consensus
package coremock
import "context"
// MockConsensus provides a mock implementation for consensus
type MockConsensus struct {
decided bool
result int
}
// NewMockConsensus creates a new mock consensus
func NewMockConsensus() *MockConsensus <span class="cov0" title="0">{
return &amp;MockConsensus{
decided: false,
result: 0,
}
}</span>
// Decide makes a consensus decision
func (m *MockConsensus) Decide(ctx context.Context, value int) error <span class="cov0" title="0">{
m.decided = true
m.result = value
return nil
}</span>
// IsDecided returns whether consensus has been reached
func (m *MockConsensus) IsDecided() bool <span class="cov0" title="0">{
return m.decided
}</span>
// Result returns the consensus result
func (m *MockConsensus) Result() int <span class="cov0" title="0">{
return m.result
}</span>
</pre>
<pre class="file" id="file43" style="display: none">package tracker
import (
"github.com/luxfi/ids"
)
// Tracker tracks consensus state
type Tracker interface {
// IsBootstrapped checks if bootstrapped
IsBootstrapped() bool
// Bootstrapped marks as bootstrapped
Bootstrapped(ids.ID)
// OnBootstrapCompleted called when bootstrap completes
OnBootstrapCompleted() chan ids.ID
}
// tracker implementation
type tracker struct {
bootstrapped bool
completed chan ids.ID
}
// NewTracker creates a new tracker
func NewTracker() Tracker <span class="cov0" title="0">{
return &amp;tracker{
completed: make(chan ids.ID, 1),
}
}</span>
// IsBootstrapped checks if bootstrapped
func (t *tracker) IsBootstrapped() bool <span class="cov0" title="0">{
return t.bootstrapped
}</span>
// Bootstrapped marks as bootstrapped
func (t *tracker) Bootstrapped(chainID ids.ID) <span class="cov0" title="0">{
t.bootstrapped = true
select </span>{
case t.completed &lt;- chainID:<span class="cov0" title="0"></span>
default:<span class="cov0" title="0"></span>
}
}
// OnBootstrapCompleted returns completion channel
func (t *tracker) OnBootstrapCompleted() chan ids.ID <span class="cov0" title="0">{
return t.completed
}</span>
</pre>
<pre class="file" id="file44" style="display: none">package bootstrap
import (
"context"
"github.com/luxfi/ids"
)
// Version represents protocol version
type Version uint32
// Bootstrapper bootstraps a DAG
type Bootstrapper interface {
// Start starts bootstrapping
Start(context.Context, uint32) error
// Connected notifies the bootstrapper of a connected validator
Connected(context.Context, ids.NodeID, Version) error
// Disconnected notifies the bootstrapper of a disconnected validator
Disconnected(context.Context, ids.NodeID) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
}
// bootstrapper implementation
type bootstrapper struct {
started bool
}
// New creates a new bootstrapper
func New() Bootstrapper <span class="cov0" title="0">{
return &amp;bootstrapper{}
}</span>
// Start starts bootstrapping
func (b *bootstrapper) Start(ctx context.Context, requestID uint32) error <span class="cov0" title="0">{
b.started = true
return nil
}</span>
// Connected notifies the bootstrapper of a connected validator
func (b *bootstrapper) Connected(ctx context.Context, nodeID ids.NodeID, version Version) error <span class="cov0" title="0">{
return nil
}</span>
// Disconnected notifies the bootstrapper of a disconnected validator
func (b *bootstrapper) Disconnected(ctx context.Context, nodeID ids.NodeID) error <span class="cov0" title="0">{
return nil
}</span>
// HealthCheck performs a health check
func (b *bootstrapper) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]interface{}{"started": b.started}, nil
}</span>
</pre>
<pre class="file" id="file45" style="display: none">package queue
import (
"container/heap"
"github.com/luxfi/ids"
)
// Job represents a bootstrap job
type Job interface {
ID() ids.ID
Priority() uint64
Execute() error
}
// Queue is a priority queue for jobs
type Queue interface {
// Push adds a job
Push(Job)
// Pop removes highest priority job
Pop() Job
// Len returns queue length
Len() int
// Has checks if job exists
Has(ids.ID) bool
}
// priorityQueue implements heap.Interface
type priorityQueue []Job
func (pq priorityQueue) Len() int <span class="cov0" title="0">{ return len(pq) }</span>
func (pq priorityQueue) Less(i, j int) bool <span class="cov0" title="0">{
return pq[i].Priority() &gt; pq[j].Priority()
}</span>
func (pq priorityQueue) Swap(i, j int) <span class="cov0" title="0">{
pq[i], pq[j] = pq[j], pq[i]
}</span>
func (pq *priorityQueue) Push(x interface{}) <span class="cov0" title="0">{
*pq = append(*pq, x.(Job))
}</span>
func (pq *priorityQueue) Pop() interface{} <span class="cov0" title="0">{
old := *pq
n := len(old)
item := old[n-1]
*pq = old[0 : n-1]
return item
}</span>
// queue implementation
type queue struct {
pq priorityQueue
jobs map[ids.ID]Job
}
// NewQueue creates a new queue
func NewQueue() Queue <span class="cov0" title="0">{
q := &amp;queue{
jobs: make(map[ids.ID]Job),
}
heap.Init(&amp;q.pq)
return q
}</span>
// Push adds a job
func (q *queue) Push(job Job) <span class="cov0" title="0">{
if _, exists := q.jobs[job.ID()]; !exists </span><span class="cov0" title="0">{
heap.Push(&amp;q.pq, job)
q.jobs[job.ID()] = job
}</span>
}
// Pop removes highest priority job
func (q *queue) Pop() Job <span class="cov0" title="0">{
if q.pq.Len() == 0 </span><span class="cov0" title="0">{
return nil
}</span>
<span class="cov0" title="0">job := heap.Pop(&amp;q.pq).(Job)
delete(q.jobs, job.ID())
return job</span>
}
// Len returns queue length
func (q *queue) Len() int <span class="cov0" title="0">{
return q.pq.Len()
}</span>
// Has checks if job exists
func (q *queue) Has(id ids.ID) bool <span class="cov0" title="0">{
_, exists := q.jobs[id]
return exists
}</span>
</pre>
<pre class="file" id="file46" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package dag
import (
"context"
"github.com/luxfi/ids"
)
// Transaction represents a DAG transaction
type Transaction interface {
ID() ids.ID
Parent() ids.ID
Height() uint64
Bytes() []byte
Verify(context.Context) error
Accept(context.Context) error
Reject(context.Context) error
}
// Engine defines the DAG consensus engine interface
type Engine interface {
// GetVtx gets a vertex by ID
GetVtx(context.Context, ids.ID) (Transaction, error)
// BuildVtx builds a new vertex
BuildVtx(context.Context) (Transaction, error)
// ParseVtx parses a vertex from bytes
ParseVtx(context.Context, []byte) (Transaction, error)
// Start starts the engine
Start(context.Context, uint32) error
// Shutdown shuts down the engine
Shutdown(context.Context) error
}
// dagEngine implements the Engine interface
type dagEngine struct{}
// New creates a new DAG engine
func New() Engine <span class="cov8" title="1">{
return &amp;dagEngine{}
}</span>
func (e *dagEngine) GetVtx(ctx context.Context, id ids.ID) (Transaction, error) <span class="cov8" title="1">{
return nil, nil
}</span>
func (e *dagEngine) BuildVtx(ctx context.Context) (Transaction, error) <span class="cov8" title="1">{
return nil, nil
}</span>
func (e *dagEngine) ParseVtx(ctx context.Context, b []byte) (Transaction, error) <span class="cov8" title="1">{
return nil, nil
}</span>
func (e *dagEngine) Start(ctx context.Context, requestID uint32) error <span class="cov8" title="1">{
return nil
}</span>
func (e *dagEngine) Shutdown(ctx context.Context) error <span class="cov8" title="1">{
return nil
}</span>
// Stop stops the engine (alias for Shutdown for interface compatibility)
func (e *dagEngine) Stop(ctx context.Context) error <span class="cov0" title="0">{
return e.Shutdown(ctx)
}</span>
// HealthCheck performs a health check
func (e *dagEngine) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]string{"status": "healthy"}, nil
}</span>
// IsBootstrapped returns whether the engine is bootstrapped
func (e *dagEngine) IsBootstrapped() bool <span class="cov0" title="0">{
return true
}</span>
</pre>
<pre class="file" id="file47" style="display: none">package getter
import (
"context"
"github.com/luxfi/ids"
)
// Getter gets vertices
type Getter interface {
// Get gets a vertex
Get(context.Context, ids.NodeID, uint32, ids.ID) error
// GetAncestors gets ancestors
GetAncestors(context.Context, ids.NodeID, uint32, ids.ID, int) error
// Put puts a vertex
Put(context.Context, ids.NodeID, uint32, []byte) error
// PushQuery pushes a query
PushQuery(context.Context, ids.NodeID, uint32, []byte) error
// PullQuery pulls a query
PullQuery(context.Context, ids.NodeID, uint32, ids.ID) error
}
// getter implementation
type getter struct{}
// New creates a new getter
func New() Getter <span class="cov0" title="0">{
return &amp;getter{}
}</span>
// Get gets a vertex
func (g *getter) Get(ctx context.Context, nodeID ids.NodeID, requestID uint32, vertexID ids.ID) error <span class="cov0" title="0">{
return nil
}</span>
// GetAncestors gets ancestors
func (g *getter) GetAncestors(ctx context.Context, nodeID ids.NodeID, requestID uint32, vertexID ids.ID, maxVertices int) error <span class="cov0" title="0">{
return nil
}</span>
// Put puts a vertex
func (g *getter) Put(ctx context.Context, nodeID ids.NodeID, requestID uint32, vertex []byte) error <span class="cov0" title="0">{
return nil
}</span>
// PushQuery pushes a query
func (g *getter) PushQuery(ctx context.Context, nodeID ids.NodeID, requestID uint32, vertex []byte) error <span class="cov0" title="0">{
return nil
}</span>
// PullQuery pulls a query
func (g *getter) PullQuery(ctx context.Context, nodeID ids.NodeID, requestID uint32, vertexID ids.ID) error <span class="cov0" title="0">{
return nil
}</span>
</pre>
<pre class="file" id="file48" style="display: none">package state
import (
"github.com/luxfi/ids"
)
// State represents DAG state
type State interface {
// GetVertex gets a vertex
GetVertex(ids.ID) (Vertex, error)
// AddVertex adds a vertex
AddVertex(Vertex) error
// VertexIssued checks if vertex issued
VertexIssued(Vertex) bool
// IsProcessing checks if processing
IsProcessing(ids.ID) bool
}
// Vertex represents a DAG vertex
type Vertex interface {
ID() ids.ID
ParentIDs() []ids.ID
Height() uint64
Bytes() []byte
}
// state implementation
type state struct {
vertices map[ids.ID]Vertex
processing map[ids.ID]bool
}
// New creates a new state
func New() State <span class="cov0" title="0">{
return &amp;state{
vertices: make(map[ids.ID]Vertex),
processing: make(map[ids.ID]bool),
}
}</span>
// GetVertex gets a vertex
func (s *state) GetVertex(id ids.ID) (Vertex, error) <span class="cov0" title="0">{
vertex, exists := s.vertices[id]
if !exists </span><span class="cov0" title="0">{
return nil, ErrVertexNotFound
}</span>
<span class="cov0" title="0">return vertex, nil</span>
}
// AddVertex adds a vertex
func (s *state) AddVertex(vertex Vertex) error <span class="cov0" title="0">{
s.vertices[vertex.ID()] = vertex
return nil
}</span>
// VertexIssued checks if vertex issued
func (s *state) VertexIssued(vertex Vertex) bool <span class="cov0" title="0">{
_, exists := s.vertices[vertex.ID()]
return exists
}</span>
// IsProcessing checks if processing
func (s *state) IsProcessing(id ids.ID) bool <span class="cov0" title="0">{
return s.processing[id]
}</span>
// ErrVertexNotFound is returned when vertex not found
var ErrVertexNotFound = &amp;vertexNotFoundError{}
type vertexNotFoundError struct{}
func (e *vertexNotFoundError) Error() string <span class="cov0" title="0">{
return "vertex not found"
}</span>
</pre>
<pre class="file" id="file49" style="display: none">// Package enginetest provides test utilities for consensus engines
package enginetest
import "context"
// TestEngine provides a test implementation for consensus engines
type TestEngine struct {
started bool
height uint64
}
// NewTestEngine creates a new test engine
func NewTestEngine() *TestEngine <span class="cov0" title="0">{
return &amp;TestEngine{
started: false,
height: 0,
}
}</span>
// Start starts the test engine
func (t *TestEngine) Start(ctx context.Context) error <span class="cov0" title="0">{
t.started = true
return nil
}</span>
// Stop stops the test engine
func (t *TestEngine) Stop(ctx context.Context) error <span class="cov0" title="0">{
t.started = false
return nil
}</span>
// IsStarted returns whether the engine is started
func (t *TestEngine) IsStarted() bool <span class="cov0" title="0">{
return t.started
}</span>
// Height returns the current height
func (t *TestEngine) Height() uint64 <span class="cov0" title="0">{
return t.height
}</span>
// SetHeight sets the engine height
func (t *TestEngine) SetHeight(height uint64) <span class="cov0" title="0">{
t.height = height
}</span>
</pre>
<pre class="file" id="file50" style="display: none">package bootstrap
import (
"context"
"github.com/luxfi/ids"
)
// Version represents protocol version
type Version uint32
// Bootstrapper bootstraps a post-quantum chain
type Bootstrapper interface {
// Start starts bootstrapping
Start(context.Context, uint32) error
// Connected notifies the bootstrapper of a connected validator
Connected(context.Context, ids.NodeID, Version) error
// Disconnected notifies the bootstrapper of a disconnected validator
Disconnected(context.Context, ids.NodeID) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
// VerifyQuantumCredentials verifies node's quantum credentials
VerifyQuantumCredentials(context.Context, ids.NodeID, []byte) error
}
// bootstrapper implementation
type bootstrapper struct {
started bool
algorithm string
}
// New creates a new post-quantum bootstrapper
func New(algorithm string) Bootstrapper <span class="cov0" title="0">{
return &amp;bootstrapper{
algorithm: algorithm,
}
}</span>
// Start starts bootstrapping
func (b *bootstrapper) Start(ctx context.Context, requestID uint32) error <span class="cov0" title="0">{
b.started = true
return nil
}</span>
// Connected notifies the bootstrapper of a connected validator
func (b *bootstrapper) Connected(ctx context.Context, nodeID ids.NodeID, version Version) error <span class="cov0" title="0">{
return nil
}</span>
// Disconnected notifies the bootstrapper of a disconnected validator
func (b *bootstrapper) Disconnected(ctx context.Context, nodeID ids.NodeID) error <span class="cov0" title="0">{
return nil
}</span>
// HealthCheck performs a health check
func (b *bootstrapper) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]interface{}{
"started": b.started,
"algorithm": b.algorithm,
}, nil
}</span>
// VerifyQuantumCredentials verifies node's quantum credentials
func (b *bootstrapper) VerifyQuantumCredentials(ctx context.Context, nodeID ids.NodeID, credentials []byte) error <span class="cov0" title="0">{
// Verify post-quantum credentials
return nil
}</span>
</pre>
<pre class="file" id="file51" style="display: none">// Package pq implements the post-quantum consensus engine that combines
// classical and quantum-resistant consensus mechanisms.
package pq
import (
"context"
"fmt"
"sync"
"time"
"github.com/luxfi/consensus/config"
"github.com/luxfi/consensus/core/dag"
"github.com/luxfi/consensus/protocol/quasar"
"github.com/luxfi/ids"
)
// ConsensusEngine implements post-quantum consensus combining classical and quantum-resistant security
type ConsensusEngine struct {
params config.Parameters
quasar *quasar.Quasar
finality chan FinalityEvent
mu sync.RWMutex
// State tracking
height uint64
round uint64
finalized map[ids.ID]bool
}
// FinalityEvent represents a finalized block with quantum-resistant proofs
type FinalityEvent struct {
Height uint64
BlockID ids.ID
Timestamp time.Time
PQProof []byte // Post-quantum proof
BLSProof []byte // Classical BLS proof
}
// memoryStore is a simple in-memory implementation of dag.Store for P-Chain vertices
type memoryStore struct {
vertices map[quasar.VertexID]*memoryVertex
heads []quasar.VertexID
mu sync.RWMutex
}
type memoryVertex struct {
id quasar.VertexID
parents []quasar.VertexID
author string
round uint64
children []quasar.VertexID
}
func (v *memoryVertex) ID() quasar.VertexID <span class="cov0" title="0">{ return v.id }</span>
func (v *memoryVertex) Parents() []quasar.VertexID <span class="cov0" title="0">{ return v.parents }</span>
func (v *memoryVertex) Author() string <span class="cov0" title="0">{ return v.author }</span>
func (v *memoryVertex) Round() uint64 <span class="cov0" title="0">{ return v.round }</span>
func (s *memoryStore) Head() []quasar.VertexID <span class="cov0" title="0">{
if s.vertices == nil </span><span class="cov0" title="0">{
s.vertices = make(map[quasar.VertexID]*memoryVertex)
}</span>
<span class="cov0" title="0">s.mu.RLock()
defer s.mu.RUnlock()
result := make([]quasar.VertexID, len(s.heads))
copy(result, s.heads)
return result</span>
}
func (s *memoryStore) Get(id quasar.VertexID) (dag.BlockView[quasar.VertexID], bool) <span class="cov0" title="0">{
if s.vertices == nil </span><span class="cov0" title="0">{
s.vertices = make(map[quasar.VertexID]*memoryVertex)
}</span>
<span class="cov0" title="0">s.mu.RLock()
defer s.mu.RUnlock()
vertex, exists := s.vertices[id]
return vertex, exists</span>
}
func (s *memoryStore) Children(id quasar.VertexID) []quasar.VertexID <span class="cov0" title="0">{
if s.vertices == nil </span><span class="cov0" title="0">{
s.vertices = make(map[quasar.VertexID]*memoryVertex)
}</span>
<span class="cov0" title="0">s.mu.RLock()
defer s.mu.RUnlock()
if vertex, exists := s.vertices[id]; exists </span><span class="cov0" title="0">{
result := make([]quasar.VertexID, len(vertex.children))
copy(result, vertex.children)
return result
}</span>
<span class="cov0" title="0">return []quasar.VertexID{}</span>
}
// NewConsensus creates a new post-quantum consensus engine
func NewConsensus(params config.Parameters) *ConsensusEngine <span class="cov8" title="1">{
// Create a simple in-memory store for P-Chain vertices
// TODO: Use proper persistent storage in production
store := &amp;memoryStore{}
return &amp;ConsensusEngine{
params: params,
quasar: quasar.New(params, store),
finality: make(chan FinalityEvent, 100),
finalized: make(map[ids.ID]bool),
}
}</span>
// Initialize sets up the PQ engine with keys
func (e *ConsensusEngine) Initialize(ctx context.Context, blsKey, pqKey []byte) error <span class="cov8" title="1">{
return e.quasar.Initialize(ctx, blsKey, pqKey)
}</span>
// ProcessBlock processes a block through PQ consensus
func (e *ConsensusEngine) ProcessBlock(ctx context.Context, blockID ids.ID, votes map[string]int) error <span class="cov8" title="1">{
e.mu.Lock()
defer e.mu.Unlock()
// Check if already finalized
if e.finalized[blockID] </span><span class="cov8" title="1">{
return nil
}</span>
// For now, use simplified consensus logic
// In production, this would integrate with quasar's internal methods
<span class="cov8" title="1">totalVotes := 0
maxVotes := 0
bestBlock := ""
for block, count := range votes </span><span class="cov8" title="1">{
totalVotes += count
if count &gt; maxVotes </span><span class="cov8" title="1">{
maxVotes = count
bestBlock = block
}</span>
}
// Check if we have enough votes for the best block
<span class="cov8" title="1">if totalVotes == 0 || float64(maxVotes)/float64(totalVotes) &lt; e.params.Alpha </span><span class="cov8" title="1">{
return fmt.Errorf("insufficient votes for finality: %d/%d for block %s", maxVotes, totalVotes, bestBlock)
}</span>
// Create mock certificate
<span class="cov8" title="1">cert := &amp;quasar.CertBundle{
BLSAgg: []byte("mock-bls-aggregate"),
PQCert: []byte("mock-pq-certificate"),
}
// Validate certificate (placeholder logic)
if len(cert.BLSAgg) == 0 &amp;&amp; len(cert.PQCert) == 0 </span><span class="cov0" title="0">{
return fmt.Errorf("insufficient votes for finality")
}</span>
// Mark as finalized
<span class="cov8" title="1">e.finalized[blockID] = true
e.height++
// Emit finality event
select </span>{
case e.finality &lt;- FinalityEvent{
Height: e.height,
BlockID: blockID,
Timestamp: time.Now(),
PQProof: cert.PQCert,
BLSProof: cert.BLSAgg,
}:<span class="cov8" title="1"></span>
case &lt;-ctx.Done():<span class="cov0" title="0">
return ctx.Err()</span>
default:<span class="cov0" title="0"></span>
// Channel full, drop oldest
}
<span class="cov8" title="1">return nil</span>
}
// IsFinalized checks if a block has achieved PQ finality
func (e *ConsensusEngine) IsFinalized(blockID ids.ID) bool <span class="cov8" title="1">{
e.mu.RLock()
defer e.mu.RUnlock()
return e.finalized[blockID]
}</span>
// FinalityChannel returns the channel for finality events
func (e *ConsensusEngine) FinalityChannel() &lt;-chan FinalityEvent <span class="cov8" title="1">{
return e.finality
}</span>
// Height returns the current finalized height
func (e *ConsensusEngine) Height() uint64 <span class="cov8" title="1">{
e.mu.RLock()
defer e.mu.RUnlock()
return e.height
}</span>
// SetFinalizedCallback sets a callback for finalized blocks
func (e *ConsensusEngine) SetFinalizedCallback(cb func(FinalityEvent)) <span class="cov8" title="1">{
e.quasar.SetFinalizedCallback(func(qb quasar.QBlock) </span><span class="cov0" title="0">{
blockID, _ := ids.FromString(qb.Hash)
cb(FinalityEvent{
Height: uint64(qb.Height),
BlockID: blockID,
Timestamp: qb.Timestamp,
PQProof: qb.Cert.PQCert,
BLSProof: qb.Cert.BLSAgg,
})
}</span>)
}
// Metrics returns engine metrics
func (e *ConsensusEngine) Metrics() map[string]interface{} <span class="cov8" title="1">{
e.mu.RLock()
defer e.mu.RUnlock()
return map[string]interface{}{
"height": e.height,
"round": e.round,
"finalized": len(e.finalized),
"k": e.params.K,
"alpha": e.params.Alpha,
"beta": e.params.Beta,
"block_time": e.params.BlockTime.String(),
}
}</span>
</pre>
<pre class="file" id="file52" style="display: none">package pq
import (
"context"
"github.com/luxfi/ids"
)
// Engine defines the post-quantum consensus engine
type Engine interface {
// Start starts the engine
Start(context.Context, uint32) error
// Stop stops the engine
Stop(context.Context) error
// HealthCheck performs a health check
HealthCheck(context.Context) (interface{}, error)
// IsBootstrapped returns whether the engine is bootstrapped
IsBootstrapped() bool
// VerifyQuantumSignature verifies a post-quantum signature
VerifyQuantumSignature([]byte, []byte, []byte) error
// GenerateQuantumProof generates a quantum-resistant proof
GenerateQuantumProof(context.Context, ids.ID) ([]byte, error)
}
// PostQuantum implements post-quantum consensus engine
type PostQuantum struct {
bootstrapped bool
algorithm string // ML-DSA, ML-KEM, etc.
}
// New creates a new post-quantum consensus engine
func New() *PostQuantum <span class="cov8" title="1">{
return &amp;PostQuantum{
bootstrapped: false,
algorithm: "ML-DSA-65", // Default to ML-DSA-65
}
}</span>
// Start starts the engine
func (pq *PostQuantum) Start(ctx context.Context, requestID uint32) error <span class="cov0" title="0">{
pq.bootstrapped = true
return nil
}</span>
// Stop stops the engine
func (pq *PostQuantum) Stop(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// HealthCheck performs a health check
func (pq *PostQuantum) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]interface{}{
"healthy": true,
"algorithm": pq.algorithm,
}, nil
}</span>
// IsBootstrapped returns whether the engine is bootstrapped
func (pq *PostQuantum) IsBootstrapped() bool <span class="cov0" title="0">{
return pq.bootstrapped
}</span>
// VerifyQuantumSignature verifies a post-quantum signature
func (pq *PostQuantum) VerifyQuantumSignature(message, signature, publicKey []byte) error <span class="cov0" title="0">{
// Implementation would use the configured post-quantum algorithm
return nil
}</span>
// GenerateQuantumProof generates a quantum-resistant proof
func (pq *PostQuantum) GenerateQuantumProof(ctx context.Context, blockID ids.ID) ([]byte, error) <span class="cov0" title="0">{
// Implementation would generate proof using post-quantum cryptography
return []byte{}, nil
}</span>
</pre>
<pre class="file" id="file53" style="display: none">// Package main demonstrates integration between consensus and node packages
package main
import (
"context"
"fmt"
"log"
"time"
"github.com/luxfi/consensus/engine/core"
"github.com/luxfi/ids"
)
// Example block for demonstration
type ExampleBlock struct {
id ids.ID
parentID ids.ID
height uint64
timestamp int64
data []byte
}
func (b *ExampleBlock) ID() ids.ID <span class="cov0" title="0">{ return b.id }</span>
func (b *ExampleBlock) ParentID() ids.ID <span class="cov0" title="0">{ return b.parentID }</span>
func (b *ExampleBlock) Height() uint64 <span class="cov0" title="0">{ return b.height }</span>
func (b *ExampleBlock) Timestamp() int64 <span class="cov0" title="0">{ return b.timestamp }</span>
func (b *ExampleBlock) Bytes() []byte <span class="cov0" title="0">{ return b.data }</span>
func (b *ExampleBlock) Verify(context.Context) error <span class="cov0" title="0">{ return nil }</span>
func (b *ExampleBlock) Accept(context.Context) error <span class="cov0" title="0">{
fmt.Printf("Block %s accepted at height %d\n", b.id, b.height)
return nil
}</span>
func (b *ExampleBlock) Reject(context.Context) error <span class="cov0" title="0">{
fmt.Printf("Block %s rejected\n", b.id)
return nil
}</span>
func main() <span class="cov0" title="0">{
// Configure consensus parameters for fast finality
params := core.ConsensusParams{
K: 20,
AlphaPreference: 15,
AlphaConfidence: 15,
Beta: 20,
ConcurrentPolls: 10,
OptimalProcessing: 10,
MaxOutstandingItems: 1000,
MaxItemProcessingTime: 30 * time.Second,
}
// Create consensus engine
consensus, err := core.NewCGOConsensus(params)
if err != nil </span><span class="cov0" title="0">{
log.Fatalf("Failed to create consensus: %v", err)
}</span>
<span class="cov0" title="0">fmt.Println("✅ Consensus engine initialized")
fmt.Printf("Parameters: K=%d, Alpha=%d, Beta=%d\n",
params.K, params.AlphaPreference, params.Beta)
// Create a sample block
block := &amp;ExampleBlock{
id: ids.GenerateTestID(),
parentID: ids.Empty,
height: 1,
timestamp: time.Now().Unix(),
data: []byte("Genesis block"),
}
// Add block to consensus
if err := consensus.Add(block); err != nil </span><span class="cov0" title="0">{
log.Fatalf("Failed to add block: %v", err)
}</span>
<span class="cov0" title="0">fmt.Printf("📦 Added block %s to consensus\n", block.ID())
// Simulate voting from validators
fmt.Println("🗳️ Simulating validator votes...")
for i := 0; i &lt; params.K; i++ </span><span class="cov0" title="0">{
if err := consensus.RecordPoll(block.ID(), true); err != nil </span><span class="cov0" title="0">{
log.Printf("Failed to record vote %d: %v", i, err)
continue</span>
}
// Check if consensus achieved
<span class="cov0" title="0">if consensus.IsAccepted(block.ID()) </span><span class="cov0" title="0">{
fmt.Printf("✅ Consensus achieved after %d votes!\n", i+1)
break</span>
}
}
// Verify final state
<span class="cov0" title="0">if consensus.IsAccepted(block.ID()) </span><span class="cov0" title="0">{
fmt.Printf("🎉 Block %s has been accepted by consensus\n", block.ID())
fmt.Printf("Current preference: %s\n", consensus.GetPreference())
}</span> else<span class="cov0" title="0"> {
fmt.Printf("❌ Block %s was not accepted\n", block.ID())
}</span>
// Health check
<span class="cov0" title="0">if err := consensus.HealthCheck(); err != nil </span><span class="cov0" title="0">{
log.Printf("Health check failed: %v", err)
}</span> else<span class="cov0" title="0"> {
fmt.Println("💚 Consensus engine health check passed")
}</span>
<span class="cov0" title="0">fmt.Println("\n🏁 Node integration example completed successfully!")</span>
}</pre>
<pre class="file" id="file54" style="display: none">package flare
import "github.com/luxfi/consensus/core/dag"
type Decision int
const (
DecideUndecided Decision = iota
DecideCommit
DecideSkip
)
// Cert: &gt;=2f+1 in r+1 support proposer(author,round). Skip: &gt;=2f+1 in r+1 not supporting.
func HasCertificate(v dag.View, proposer dag.Meta, p dag.Params) bool <span class="cov8" title="1">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
support := 0
for _, m := range next </span><span class="cov8" title="1">{
if v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov8" title="1">{
support++
if support &gt;= 2*p.F+1 </span><span class="cov8" title="1">{
return true
}</span>
}
}
<span class="cov8" title="1">return false</span>
}
func HasSkip(v dag.View, proposer dag.Meta, p dag.Params) bool <span class="cov8" title="1">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
nos := 0
for _, m := range next </span><span class="cov8" title="1">{
if !v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov8" title="1">{
nos++
if nos &gt;= 2*p.F+1 </span><span class="cov8" title="1">{
return true
}</span>
}
}
<span class="cov8" title="1">return false</span>
}
type Flare struct{ p dag.Params }
func NewFlare(p dag.Params) *Flare <span class="cov8" title="1">{ return &amp;Flare{p: p} }</span>
func (f *Flare) Classify(v dag.View, proposer dag.Meta) Decision <span class="cov8" title="1">{
switch </span>{
case HasCertificate(v, proposer, f.p):<span class="cov8" title="1">
return DecideCommit</span>
case HasSkip(v, proposer, f.p):<span class="cov0" title="0">
return DecideSkip</span>
default:<span class="cov8" title="1">
return DecideUndecided</span>
}
}
</pre>
<pre class="file" id="file55" style="display: none">package focus
import (
"sync"
"time"
)
// Tracker tracks confidence counters for items
type Tracker[ID comparable] struct {
mu sync.RWMutex
counts map[ID]int
}
func NewTracker[ID comparable]() *Tracker[ID] <span class="cov8" title="1">{
return &amp;Tracker[ID]{
counts: make(map[ID]int),
}
}</span>
func (t *Tracker[ID]) Incr(id ID) <span class="cov8" title="1">{
t.mu.Lock()
defer t.mu.Unlock()
t.counts[id]++
}</span>
func (t *Tracker[ID]) Count(id ID) int <span class="cov8" title="1">{
t.mu.RLock()
defer t.mu.RUnlock()
return t.counts[id]
}</span>
func (t *Tracker[ID]) Reset(id ID) <span class="cov8" title="1">{
t.mu.Lock()
defer t.mu.Unlock()
delete(t.counts, id)
}</span>
// Confidence tracks confidence building for consensus
type Confidence[ID comparable] struct {
mu sync.RWMutex
threshold int
alpha float64
states map[ID]int
}
func NewConfidence[ID comparable](threshold int, alpha float64) *Confidence[ID] <span class="cov8" title="1">{
return &amp;Confidence[ID]{
threshold: threshold,
alpha: alpha,
states: make(map[ID]int),
}
}</span>
func (c *Confidence[ID]) Update(id ID, ratio float64) <span class="cov8" title="1">{
c.mu.Lock()
defer c.mu.Unlock()
current := c.states[id]
if ratio &gt;= c.alpha </span><span class="cov8" title="1">{
c.states[id] = current + 1
}</span> else<span class="cov8" title="1"> if ratio &lt;= 1.0-c.alpha </span><span class="cov8" title="1">{
c.states[id] = 0 // Reset on opposite preference
}</span>
}
func (c *Confidence[ID]) State(id ID) (int, bool) <span class="cov8" title="1">{
c.mu.RLock()
defer c.mu.RUnlock()
state := c.states[id]
decided := state &gt;= c.threshold
return state, decided
}</span>
// WindowedConfidence tracks confidence with time windows
type WindowedConfidence[ID comparable] struct {
mu sync.RWMutex
threshold int
alpha float64
window time.Duration
states map[ID]int
lastUpdate map[ID]time.Time
}
func NewWindowed[ID comparable](threshold int, alpha float64, window time.Duration) *WindowedConfidence[ID] <span class="cov8" title="1">{
return &amp;WindowedConfidence[ID]{
threshold: threshold,
alpha: alpha,
window: window,
states: make(map[ID]int),
lastUpdate: make(map[ID]time.Time),
}
}</span>
func (w *WindowedConfidence[ID]) Update(id ID, ratio float64) <span class="cov8" title="1">{
w.mu.Lock()
defer w.mu.Unlock()
now := time.Now()
if last, ok := w.lastUpdate[id]; ok </span><span class="cov8" title="1">{
if now.Sub(last) &gt; w.window </span><span class="cov0" title="0">{
// Window expired, reset
w.states[id] = 0
}</span>
}
<span class="cov8" title="1">current := w.states[id]
if ratio &gt;= w.alpha </span><span class="cov8" title="1">{
w.states[id] = current + 1
}</span> else<span class="cov0" title="0"> if ratio &lt;= 1.0-w.alpha </span><span class="cov0" title="0">{
w.states[id] = 0
}</span>
<span class="cov8" title="1">w.lastUpdate[id] = now</span>
}
func (w *WindowedConfidence[ID]) State(id ID) (int, bool) <span class="cov8" title="1">{
w.mu.RLock()
defer w.mu.RUnlock()
// Check if window expired
if last, ok := w.lastUpdate[id]; ok </span><span class="cov8" title="1">{
if time.Since(last) &gt; w.window </span><span class="cov8" title="1">{
return 0, false
}</span>
}
<span class="cov8" title="1">state := w.states[id]
decided := state &gt;= w.threshold
return state, decided</span>
}
// Calc calculates confidence based on votes
func Calc(yes, total, prev int) (float64, int) <span class="cov8" title="1">{
if total == 0 </span><span class="cov0" title="0">{
return 0, prev
}</span>
<span class="cov8" title="1">ratio := float64(yes) / float64(total)
// Calculate new confidence
var conf int
if ratio &gt; 0.5 </span><span class="cov8" title="1">{
conf = yes - (total - yes) // Difference between yes and no
if conf &lt; 0 </span><span class="cov0" title="0">{
conf = 0
}</span>
} else<span class="cov8" title="1"> {
conf = 0
}</span>
// Consider previous confidence
<span class="cov8" title="1">if prev &gt; 0 &amp;&amp; conf &gt; 0 </span><span class="cov8" title="1">{
conf += prev / 2 // Boost with previous confidence
}</span>
<span class="cov8" title="1">return ratio, conf</span>
}
</pre>
<pre class="file" id="file56" style="display: none">package horizon
import (
"github.com/luxfi/consensus/core/dag"
)
type VertexID [32]byte
type Meta interface {
ID() VertexID
Author() string
Round() uint64
Parents() []VertexID
}
type View interface {
Get(VertexID) (Meta, bool)
ByRound(round uint64) []Meta
Supports(from VertexID, author string, round uint64) bool
}
type Params struct{ N, F int }
// TransitiveClosure computes the transitive closure of a vertex in the DAG
func TransitiveClosure[V comparable](store dag.Store[V], vertex V) []V <span class="cov8" title="1">{
// TODO: Implement transitive closure computation
return []V{vertex}
}</span>
// Certificate represents a proof that a vertex has achieved consensus
type Certificate[V comparable] struct {
Vertex V
Proof []V
Threshold int
}
// ValidateCertificate checks if a certificate is valid given a validator function
func ValidateCertificate[V comparable](store dag.Store[V], cert Certificate[V], isValid func(V) bool) bool <span class="cov8" title="1">{
// TODO: Implement certificate validation
validCount := 0
for _, proof := range cert.Proof </span><span class="cov8" title="1">{
if isValid(proof) </span><span class="cov8" title="1">{
validCount++
}</span>
}
<span class="cov8" title="1">return validCount &gt;= cert.Threshold</span>
}
// SkipList represents a skip list data structure for efficient DAG traversal
type SkipList[V comparable] struct {
Levels map[V][]V
}
// BuildSkipList constructs a skip list from DAG vertices for efficient navigation
func BuildSkipList[V comparable](store dag.Store[V], vertices []V) *SkipList[V] <span class="cov8" title="1">{
// TODO: Implement skip list construction
sl := &amp;SkipList[V]{
Levels: make(map[V][]V),
}
// Simple placeholder: each vertex points to its first parent
for _, v := range vertices </span><span class="cov8" title="1">{
if block, exists := store.Get(v); exists </span><span class="cov8" title="1">{
parents := block.Parents()
if len(parents) &gt; 0 </span><span class="cov8" title="1">{
sl.Levels[v] = []V{parents[0]}
}</span> else<span class="cov0" title="0"> {
sl.Levels[v] = []V{}
}</span>
}
}
<span class="cov8" title="1">return sl</span>
}
// FindPath finds a path between two vertices in the DAG
func FindPath[V comparable](store dag.Store[V], from, to V) ([]V, bool) <span class="cov8" title="1">{
// TODO: Implement path finding algorithm
// Simple placeholder: return single vertex path if vertices exist
if _, exists1 := store.Get(from); exists1 </span><span class="cov8" title="1">{
if _, exists2 := store.Get(to); exists2 </span><span class="cov8" title="1">{
return []V{from, to}, true
}</span>
}
<span class="cov0" title="0">return nil, false</span>
}
</pre>
<pre class="file" id="file57" style="display: none">// Package routermock provides mock implementations for message routing
package routermock
import (
"context"
"github.com/luxfi/consensus/types"
)
// MockRouter provides a mock implementation for message routing
type MockRouter struct {
routes map[types.NodeID][]Message
}
// Message represents a routed message
type Message struct {
From types.NodeID
To types.NodeID
Content []byte
Type string
}
// NewMockRouter creates a new mock router
func NewMockRouter() *MockRouter <span class="cov0" title="0">{
return &amp;MockRouter{
routes: make(map[types.NodeID][]Message),
}
}</span>
// RouteMessage routes a message between nodes
func (m *MockRouter) RouteMessage(ctx context.Context, from, to types.NodeID, content []byte, msgType string) error <span class="cov0" title="0">{
if _, exists := m.routes[to]; !exists </span><span class="cov0" title="0">{
m.routes[to] = make([]Message, 0)
}</span>
<span class="cov0" title="0">m.routes[to] = append(m.routes[to], Message{
From: from,
To: to,
Content: content,
Type: msgType,
})
return nil</span>
}
// GetMessages returns all messages routed to a node
func (m *MockRouter) GetMessages(nodeID types.NodeID) []Message <span class="cov0" title="0">{
return m.routes[nodeID]
}</span>
// ClearMessages clears all routed messages
func (m *MockRouter) ClearMessages() <span class="cov0" title="0">{
m.routes = make(map[types.NodeID][]Message)
}</span>
</pre>
<pre class="file" id="file58" style="display: none">// Package router is DEPRECATED.
// This package should be in the node repository as it's part of the P2P layer, not consensus.
//
// Migration:
//
// OLD: import "github.com/luxfi/consensus/networking/router"
// NEW: import "github.com/luxfi/node/network/router"
package router
import (
"context"
"errors"
"github.com/luxfi/node/message"
)
var ErrDeprecated = errors.New("router package should be in github.com/luxfi/node/network/router")
// Deprecated: Implement in node repository
type Router interface {
Deprecated()
}
// InboundHandler handles inbound messages
type InboundHandler interface {
HandleInbound(ctx context.Context, msg message.InboundMessage)
}
// InboundHandlerFunc is a function that implements InboundHandler
type InboundHandlerFunc func(ctx context.Context, msg message.InboundMessage)
// HandleInbound implements InboundHandler
func (f InboundHandlerFunc) HandleInbound(ctx context.Context, msg message.InboundMessage) <span class="cov0" title="0">{
f(ctx, msg)
}</span>
</pre>
<pre class="file" id="file59" style="display: none">// Package sendertest provides test utilities for message sending
package sendertest
import (
"context"
"github.com/luxfi/consensus/types"
)
// TestSender provides a test implementation for message senders
type TestSender struct {
sentMessages []Message
}
// Message represents a sent message
type Message struct {
To types.NodeID
Content []byte
Type string
}
// NewTestSender creates a new test sender
func NewTestSender() *TestSender <span class="cov0" title="0">{
return &amp;TestSender{
sentMessages: make([]Message, 0),
}
}</span>
// SendMessage sends a message to a node
func (t *TestSender) SendMessage(ctx context.Context, to types.NodeID, content []byte, msgType string) error <span class="cov0" title="0">{
t.sentMessages = append(t.sentMessages, Message{
To: to,
Content: content,
Type: msgType,
})
return nil
}</span>
// GetSentMessages returns all sent messages
func (t *TestSender) GetSentMessages() []Message <span class="cov0" title="0">{
return t.sentMessages
}</span>
// ClearMessages clears all sent messages
func (t *TestSender) ClearMessages() <span class="cov0" title="0">{
t.sentMessages = make([]Message, 0)
}</span>
</pre>
<pre class="file" id="file60" style="display: none">package timeout
import (
"context"
"time"
"github.com/luxfi/ids"
)
// Manager manages timeouts
type Manager interface {
// RegisterTimeout registers a timeout
RegisterTimeout(time.Duration) func(context.Context, ids.ID) error
// RegisterRequest registers a request
RegisterRequest(ids.NodeID, ids.ID, bool, uint32, func())
// RegisterResponse registers a response
RegisterResponse(ids.NodeID, ids.ID, uint32, Op) (bool, func())
// TimeoutDuration returns timeout duration
TimeoutDuration() time.Duration
}
// Op represents an operation
type Op byte
const (
// GetAcceptedFrontier gets accepted frontier
GetAcceptedFrontier Op = iota
// AcceptedFrontier is accepted frontier response
AcceptedFrontier
// GetAccepted gets accepted
GetAccepted
// Accepted is accepted response
Accepted
// Get gets an item
Get
// Put puts an item
Put
// PushQuery pushes a query
PushQuery
// PullQuery pulls a query
PullQuery
// Chits is chits response
Chits
)
// manager implementation
type manager struct {
duration time.Duration
}
// NewManager creates a new timeout manager
func NewManager(duration time.Duration) Manager <span class="cov0" title="0">{
return &amp;manager{
duration: duration,
}
}</span>
// RegisterTimeout registers a timeout
func (m *manager) RegisterTimeout(duration time.Duration) func(context.Context, ids.ID) error <span class="cov0" title="0">{
return func(ctx context.Context, id ids.ID) error </span><span class="cov0" title="0">{
return nil
}</span>
}
// RegisterRequest registers a request
func (m *manager) RegisterRequest(nodeID ids.NodeID, requestID ids.ID, critical bool, uniqueRequestID uint32, callback func()) {<span class="cov0" title="0">
// Implementation
}</span>
// RegisterResponse registers a response
func (m *manager) RegisterResponse(nodeID ids.NodeID, requestID ids.ID, uniqueRequestID uint32, op Op) (bool, func()) <span class="cov0" title="0">{
return false, func() </span>{<span class="cov0" title="0">}</span>
}
// TimeoutDuration returns timeout duration
func (m *manager) TimeoutDuration() time.Duration <span class="cov0" title="0">{
return m.duration
}</span>
</pre>
<pre class="file" id="file61" style="display: none">package tracker
import (
"time"
"github.com/luxfi/ids"
)
// NewResourceTracker creates a new resource tracker
func NewResourceTracker(
cpuHalflife time.Duration,
diskHalflife time.Duration,
) (ResourceTracker, error) <span class="cov0" title="0">{
return &amp;resourceTracker{
cpuUsage: make(map[ids.NodeID]float64),
diskUsage: make(map[ids.NodeID]float64),
}, nil
}</span>
type resourceTracker struct {
cpuUsage map[ids.NodeID]float64
diskUsage map[ids.NodeID]float64
}
func (r *resourceTracker) StartProcessing(nodeID ids.NodeID, startTime time.Time) {<span class="cov0" title="0">
// Track processing start
}</span>
func (r *resourceTracker) StopProcessing(nodeID ids.NodeID, stopTime time.Time) {<span class="cov0" title="0">
// Track processing stop
}</span>
func (r *resourceTracker) CPUTracker() CPUTracker <span class="cov0" title="0">{
return &amp;cpuTracker{usage: r.cpuUsage}
}</span>
func (r *resourceTracker) DiskTracker() DiskTracker <span class="cov0" title="0">{
return &amp;diskTracker{usage: r.diskUsage}
}</span>
type cpuTracker struct {
usage map[ids.NodeID]float64
}
func (t *cpuTracker) Usage(nodeID ids.NodeID, requestedTime time.Time) float64 <span class="cov0" title="0">{
if usage, ok := t.usage[nodeID]; ok </span><span class="cov0" title="0">{
return usage
}</span>
<span class="cov0" title="0">return 0</span>
}
func (t *cpuTracker) TimeUntilUsage(nodeID ids.NodeID, requestedTime time.Time, usage float64) time.Duration <span class="cov0" title="0">{
return 0
}</span>
func (t *cpuTracker) TotalUsage() float64 <span class="cov0" title="0">{
var total float64
for _, usage := range t.usage </span><span class="cov0" title="0">{
total += usage
}</span>
<span class="cov0" title="0">return total</span>
}
type diskTracker struct {
usage map[ids.NodeID]float64
}
func (t *diskTracker) Usage(nodeID ids.NodeID, requestedTime time.Time) float64 <span class="cov0" title="0">{
if usage, ok := t.usage[nodeID]; ok </span><span class="cov0" title="0">{
return usage
}</span>
<span class="cov0" title="0">return 0</span>
}
func (t *diskTracker) TimeUntilUsage(nodeID ids.NodeID, requestedTime time.Time, usage float64) time.Duration <span class="cov0" title="0">{
return 0
}</span>
func (t *diskTracker) TotalUsage() float64 <span class="cov0" title="0">{
var total float64
for _, usage := range t.usage </span><span class="cov0" title="0">{
total += usage
}</span>
<span class="cov0" title="0">return total</span>
}
</pre>
<pre class="file" id="file62" style="display: none">package photon
import "github.com/luxfi/consensus/types"
// Emitter emits consensus messages
type Emitter interface {
// Emit emits a message to selected nodes
Emit(msg interface{}) ([]types.NodeID, error)
// EmitTo emits a message to specific nodes
EmitTo(nodes []types.NodeID, msg interface{}) error
}
// DefaultEmitterOptions returns default emitter options
func DefaultEmitterOptions() EmitterOptions <span class="cov0" title="0">{
return EmitterOptions{
K: 20,
Fanout: 4,
Timeout: 1000,
}
}</span>
// EmitterOptions defines emitter options
type EmitterOptions struct {
K int // Committee size
Fanout int // Number of nodes to emit to
Timeout int // Timeout in milliseconds
}
// UniformEmitter implements uniform random emission
type UniformEmitter struct {
nodes []types.NodeID
options EmitterOptions
}
// NewUniformEmitter creates a new uniform emitter
func NewUniformEmitter(nodes []types.NodeID, options EmitterOptions) *UniformEmitter <span class="cov0" title="0">{
return &amp;UniformEmitter{
nodes: nodes,
options: options,
}
}</span>
// Emit emits a message to selected nodes
func (e *UniformEmitter) Emit(msg interface{}) ([]types.NodeID, error) <span class="cov0" title="0">{
// Select random subset of nodes
selected := make([]types.NodeID, 0, e.options.Fanout)
for i := 0; i &lt; e.options.Fanout &amp;&amp; i &lt; len(e.nodes); i++ </span><span class="cov0" title="0">{
selected = append(selected, e.nodes[i])
}</span>
<span class="cov0" title="0">return selected, nil</span>
}
// EmitTo emits a message to specific nodes
func (e *UniformEmitter) EmitTo(nodes []types.NodeID, msg interface{}) error <span class="cov0" title="0">{
return nil
}</span>
</pre>
<pre class="file" id="file63" style="display: none">package photon
import (
"github.com/luxfi/consensus/types"
)
// Luminance tracks node brightness based on consensus participation.
// More successful votes = higher lux = brighter emission probability.
type Luminance struct {
lux map[types.NodeID]float64 // Brightness level per node (in lux units)
}
// NewLuminance creates a new brightness tracker
func NewLuminance() *Luminance <span class="cov0" title="0">{
return &amp;Luminance{
lux: make(map[types.NodeID]float64),
}
}</span>
// Illuminate increases or decreases node brightness based on performance
func (l *Luminance) Illuminate(id types.NodeID, success bool) <span class="cov0" title="0">{
if _, exists := l.lux[id]; !exists </span><span class="cov0" title="0">{
l.lux[id] = 100.0 // Base illumination: 100 lux (office lighting)
}</span>
<span class="cov0" title="0">if success </span><span class="cov0" title="0">{
// Successful vote increases brightness (max: 1000 lux = bright daylight)
l.lux[id] *= 1.1
if l.lux[id] &gt; 1000.0 </span><span class="cov0" title="0">{
l.lux[id] = 1000.0
}</span>
} else<span class="cov0" title="0"> {
// Failed vote dims the node (min: 10 lux = twilight)
l.lux[id] *= 0.9
if l.lux[id] &lt; 10.0 </span><span class="cov0" title="0">{
l.lux[id] = 10.0
}</span>
}
}
// Brightness returns emission weight based on lux level (0.1 to 10.0)
func (l *Luminance) Brightness(id types.NodeID) float64 <span class="cov0" title="0">{
if lux, exists := l.lux[id]; exists </span><span class="cov0" title="0">{
return lux / 100.0 // Normalize to base level
}</span>
<span class="cov0" title="0">return 1.0</span> // Default brightness
}
</pre>
<pre class="file" id="file64" style="display: none">package prism
import "github.com/luxfi/consensus/types"
// Cut provides random cutting of peers for consensus voting (like a prism cuts light)
type Cut[T comparable] interface {
// Sample returns k random peers for voting (cuts k rays from the population)
Sample(k int) []types.NodeID
// Luminance returns light intensity metrics for the cut
Luminance() Luminance
}
// Luminance measures the intensity of light across the peer network
// Following SI units: lux (lx) = lumens per square meter
type Luminance struct {
ActivePeers int
TotalPeers int
Lx float64 // Illuminance in lux (lx) - minimum 1 lx per active peer/photon
}
// UniformCut implements uniform random cutting
type UniformCut struct {
peers []types.NodeID
}
// NewUniformCut creates a new uniform cut
func NewUniformCut(peers []types.NodeID) *UniformCut <span class="cov0" title="0">{
return &amp;UniformCut{peers: peers}
}</span>
// Sample implements Cut interface (cuts k rays from the peer population)
func (c *UniformCut) Sample(k int) []types.NodeID <span class="cov0" title="0">{
if k &gt;= len(c.peers) </span><span class="cov0" title="0">{
return c.peers
}</span>
// Simple random cutting (in production, use proper randomization)
// TODO: Implement proper cryptographically secure random cutting
<span class="cov0" title="0">result := make([]types.NodeID, 0, k)
for i := 0; i &lt; k &amp;&amp; i &lt; len(c.peers); i++ </span><span class="cov0" title="0">{
result = append(result, c.peers[i])
}</span>
<span class="cov0" title="0">return result</span>
}
// Luminance implements Cut interface
func (c *UniformCut) Luminance() Luminance <span class="cov0" title="0">{
activePeers := len(c.peers)
// Minimum 1 lx per active peer/photon, scaling with network health
lx := float64(activePeers) // Base: 1 lx per peer
if activePeers &gt;= 100 </span><span class="cov0" title="0">{
lx = 500.0 // Office lighting level for healthy large networks
}</span> else<span class="cov0" title="0"> if activePeers &gt;= 20 </span><span class="cov0" title="0">{
lx = 300.0 // Classroom level for medium networks
}</span>
<span class="cov0" title="0">return Luminance{
ActivePeers: activePeers,
TotalPeers: activePeers,
Lx: lx,
}</span>
}
</pre>
<pre class="file" id="file65" style="display: none">package prism
import (
"context"
"github.com/luxfi/ids"
)
// Prism consensus interface
type Prism interface {
// Initialize prism consensus
Initialize(context.Context, *Config) error
// Propose proposes a value
Propose(context.Context, []byte) error
// Vote votes on a proposal
Vote(context.Context, ids.ID, bool) error
// GetProposal gets a proposal
GetProposal(context.Context, ids.ID) (Proposal, error)
}
// NodeConfig defines prism node configuration
type NodeConfig struct {
ProposerNodes int
VoterNodes int
TransactionNodes int
BlockSize int
}
// Proposal defines a proposal
type Proposal struct {
ID ids.ID
Height uint64
Data []byte
Votes int
Accepted bool
}
// Engine defines prism consensus engine
type Engine struct {
config *Config
}
// New creates a new prism engine
func New(config *Config) *Engine <span class="cov0" title="0">{
return &amp;Engine{
config: config,
}
}</span>
// Initialize initializes the engine
func (e *Engine) Initialize(ctx context.Context, config *Config) error <span class="cov0" title="0">{
e.config = config
return nil
}</span>
// Propose proposes a value
func (e *Engine) Propose(ctx context.Context, data []byte) error <span class="cov0" title="0">{
return nil
}</span>
// Vote votes on a proposal
func (e *Engine) Vote(ctx context.Context, proposalID ids.ID, accept bool) error <span class="cov0" title="0">{
return nil
}</span>
// GetProposal gets a proposal
func (e *Engine) GetProposal(ctx context.Context, proposalID ids.ID) (Proposal, error) <span class="cov0" title="0">{
return Proposal{}, nil
}</span>
</pre>
<pre class="file" id="file66" style="display: none">package field
import (
"context"
"time"
"github.com/luxfi/consensus/prism"
"github.com/luxfi/consensus/types"
"github.com/luxfi/consensus/wave"
)
type VID interface{ comparable } // vertex id
// BlockView is enough for order-theory (parents + metadata).
type BlockView[V VID] interface {
ID() V
Parents() []V
Author() types.NodeID
Round() uint64
}
// Store exposes local DAG state for cert/skip scans and causal reads.
type Store[V VID] interface {
Head() []V
Get(V) (BlockView[V], bool)
Children(V) []V
}
// Proposer builds a new vertex from frontier + sidecar votes, etc.
type Proposer[V VID] interface {
Propose(ctx context.Context, parents []V) (V, error)
}
// Committer applies an ordered prefix decided by Field.
type Committer[V VID] interface {
Commit(ctx context.Context, ordered []V) error
}
type Config struct {
PollSize int
Alpha float64
Beta uint32
RoundTO time.Duration
}
type Driver[V VID] struct {
cfg Config
wv wave.Wave[V]
cut prism.Cut[V]
str Store[V]
prop Proposer[V]
com Committer[V]
}
func NewDriver[V VID](cfg Config, cut prism.Cut[V], tx wave.Transport[V], store Store[V], prop Proposer[V], com Committer[V]) *Driver[V] <span class="cov0" title="0">{
if cfg.PollSize == 0 </span><span class="cov0" title="0">{
cfg.PollSize = 20
}</span>
<span class="cov0" title="0">if cfg.Alpha == 0 </span><span class="cov0" title="0">{
cfg.Alpha = 0.8
}</span>
<span class="cov0" title="0">if cfg.Beta == 0 </span><span class="cov0" title="0">{
cfg.Beta = 15
}</span>
<span class="cov0" title="0">if cfg.RoundTO == 0 </span><span class="cov0" title="0">{
cfg.RoundTO = 250 * time.Millisecond
}</span>
<span class="cov0" title="0">return &amp;Driver[V]{
cfg: cfg,
wv: wave.New[V](wave.Config{K: cfg.PollSize, Alpha: cfg.Alpha, Beta: cfg.Beta, RoundTO: cfg.RoundTO}, cut, tx),
cut: cut, str: store, prop: prop, com: com,
}</span>
}
// OnObserve should be called by your networking layer as new vertices arrive.
// You can also plug DAG fast-path voting (flare) here if you embed it in vertex payloads.
func (d *Driver[V]) OnObserve(ctx context.Context, v V) <span class="cov0" title="0">{
// optional: run local checks, update sampler health, etc.
_ = ctx
_ = v
}</span>
// Tick runs one poll round over DAG heads, looks for cert/skip and commits the safe prefix.
func (d *Driver[V]) Tick(ctx context.Context) error <span class="cov0" title="0">{
frontier := d.str.Head()
if len(frontier) == 0 </span><span class="cov0" title="0">{
return nil
}</span>
// Drive thresholding on frontier candidates
<span class="cov0" title="0">for _, v := range frontier </span><span class="cov0" title="0">{
d.wv.Tick(ctx, v)
}</span>
// Use DAG order theory to derive commit/skip (cert/skip patterns)
// TODO: Implement proper type conversion or interface alignment
<span class="cov0" title="0">ordered := []V{} // dag.ComputeSafePrefix(d.str, frontier) // implement using horizon+flare
if len(ordered) &gt; 0 </span><span class="cov0" title="0">{
if err := d.com.Commit(ctx, ordered); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
// Optionally propose a new vertex extending the frontier
// TODO: Implement proper type conversion or interface alignment
// parents := dag.ChooseFrontier(frontier) // e.g., 2f+1 parents or all-recent
// _, _ = d.prop.Propose(ctx, parents)
<span class="cov0" title="0">return nil</span>
}
// Start begins the Field engine operation
func (d *Driver[V]) Start(ctx context.Context) error <span class="cov0" title="0">{
// Field engine is stateless and starts immediately
return nil
}</span>
// Stop ends the Field engine operation
func (d *Driver[V]) Stop(ctx context.Context) error <span class="cov0" title="0">{
// Field engine is stateless and stops immediately
return nil
}</span>
// Propose proposes a new vertex with given parents (Nebula will use this)
func (d *Driver[V]) Propose(ctx context.Context, parents []V) (V, error) <span class="cov0" title="0">{
return d.prop.Propose(ctx, parents)
}</span>
// GetFrontier returns the current DAG frontier (tips)
func (d *Driver[V]) GetFrontier() []V <span class="cov0" title="0">{
return d.str.Head()
}</span>
// IsFinalized checks if a vertex is finalized
func (d *Driver[V]) IsFinalized(vertex V) bool <span class="cov0" title="0">{
if state, exists := d.wv.State(vertex); exists </span><span class="cov0" title="0">{
return state.Decided &amp;&amp; state.Result == types.DecideAccept
}</span>
<span class="cov0" title="0">return false</span>
}
// GetCommittedVertices returns vertices that have been committed in order
func (d *Driver[V]) GetCommittedVertices() []V <span class="cov0" title="0">{
// TODO: Implement committed vertex tracking
// This would require maintaining a list of committed vertices from the Committer
return []V{}
}</span>
</pre>
<pre class="file" id="file67" style="display: none">package field
// placeholder for epoch/cross-chain features (e.g., checkpoint bundling).
type Service struct{}
func New() *Service <span class="cov8" title="1">{ return &amp;Service{} }</span>
</pre>
<pre class="file" id="file68" style="display: none">package flare
import "github.com/luxfi/consensus/core/dag"
type Decision int
const (
DecideUndecided Decision = iota
DecideCommit
DecideSkip
)
// Cert: &gt;=2f+1 in r+1 support proposer(author,round). Skip: &gt;=2f+1 in r+1 not supporting.
func HasCertificate(v dag.View, proposer dag.Meta, p dag.Params) bool <span class="cov8" title="1">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
support := 0
for _, m := range next </span><span class="cov8" title="1">{
if v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov8" title="1">{
support++
if support &gt;= 2*p.F+1 </span><span class="cov8" title="1">{
return true
}</span>
}
}
<span class="cov8" title="1">return false</span>
}
func HasSkip(v dag.View, proposer dag.Meta, p dag.Params) bool <span class="cov8" title="1">{
r1 := proposer.Round() + 1
next := v.ByRound(r1)
nos := 0
for _, m := range next </span><span class="cov8" title="1">{
if !v.Supports(m.ID(), proposer.Author(), proposer.Round()) </span><span class="cov8" title="1">{
nos++
if nos &gt;= 2*p.F+1 </span><span class="cov8" title="1">{
return true
}</span>
}
}
<span class="cov8" title="1">return false</span>
}
type Flare struct{ p dag.Params }
func NewFlare(p dag.Params) *Flare <span class="cov8" title="1">{ return &amp;Flare{p: p} }</span>
func (f *Flare) Classify(v dag.View, proposer dag.Meta) Decision <span class="cov8" title="1">{
switch </span>{
case HasCertificate(v, proposer, f.p):<span class="cov8" title="1">
return DecideCommit</span>
case HasSkip(v, proposer, f.p):<span class="cov0" title="0">
return DecideSkip</span>
default:<span class="cov8" title="1">
return DecideUndecided</span>
}
}
</pre>
<pre class="file" id="file69" style="display: none">package focus
import (
"sync"
"time"
)
// Tracker tracks confidence counters for items
type Tracker[ID comparable] struct {
mu sync.RWMutex
counts map[ID]int
}
func NewTracker[ID comparable]() *Tracker[ID] <span class="cov8" title="1">{
return &amp;Tracker[ID]{
counts: make(map[ID]int),
}
}</span>
func (t *Tracker[ID]) Incr(id ID) <span class="cov8" title="1">{
t.mu.Lock()
defer t.mu.Unlock()
t.counts[id]++
}</span>
func (t *Tracker[ID]) Count(id ID) int <span class="cov8" title="1">{
t.mu.RLock()
defer t.mu.RUnlock()
return t.counts[id]
}</span>
func (t *Tracker[ID]) Reset(id ID) <span class="cov8" title="1">{
t.mu.Lock()
defer t.mu.Unlock()
delete(t.counts, id)
}</span>
// Confidence tracks confidence building for consensus
type Confidence[ID comparable] struct {
mu sync.RWMutex
threshold int
alpha float64
states map[ID]int
}
func NewConfidence[ID comparable](threshold int, alpha float64) *Confidence[ID] <span class="cov8" title="1">{
return &amp;Confidence[ID]{
threshold: threshold,
alpha: alpha,
states: make(map[ID]int),
}
}</span>
func (c *Confidence[ID]) Update(id ID, ratio float64) <span class="cov8" title="1">{
c.mu.Lock()
defer c.mu.Unlock()
current := c.states[id]
if ratio &gt;= c.alpha </span><span class="cov8" title="1">{
c.states[id] = current + 1
}</span> else<span class="cov8" title="1"> if ratio &lt;= 1.0-c.alpha </span><span class="cov8" title="1">{
c.states[id] = 0 // Reset on opposite preference
}</span>
}
func (c *Confidence[ID]) State(id ID) (int, bool) <span class="cov8" title="1">{
c.mu.RLock()
defer c.mu.RUnlock()
state := c.states[id]
decided := state &gt;= c.threshold
return state, decided
}</span>
// WindowedConfidence tracks confidence with time windows
type WindowedConfidence[ID comparable] struct {
mu sync.RWMutex
threshold int
alpha float64
window time.Duration
states map[ID]int
lastUpdate map[ID]time.Time
}
func NewWindowed[ID comparable](threshold int, alpha float64, window time.Duration) *WindowedConfidence[ID] <span class="cov8" title="1">{
return &amp;WindowedConfidence[ID]{
threshold: threshold,
alpha: alpha,
window: window,
states: make(map[ID]int),
lastUpdate: make(map[ID]time.Time),
}
}</span>
func (w *WindowedConfidence[ID]) Update(id ID, ratio float64) <span class="cov8" title="1">{
w.mu.Lock()
defer w.mu.Unlock()
now := time.Now()
if last, ok := w.lastUpdate[id]; ok </span><span class="cov8" title="1">{
if now.Sub(last) &gt; w.window </span><span class="cov0" title="0">{
// Window expired, reset
w.states[id] = 0
}</span>
}
<span class="cov8" title="1">current := w.states[id]
if ratio &gt;= w.alpha </span><span class="cov8" title="1">{
w.states[id] = current + 1
}</span> else<span class="cov0" title="0"> if ratio &lt;= 1.0-w.alpha </span><span class="cov0" title="0">{
w.states[id] = 0
}</span>
<span class="cov8" title="1">w.lastUpdate[id] = now</span>
}
func (w *WindowedConfidence[ID]) State(id ID) (int, bool) <span class="cov8" title="1">{
w.mu.RLock()
defer w.mu.RUnlock()
// Check if window expired
if last, ok := w.lastUpdate[id]; ok </span><span class="cov8" title="1">{
if time.Since(last) &gt; w.window </span><span class="cov8" title="1">{
return 0, false
}</span>
}
<span class="cov8" title="1">state := w.states[id]
decided := state &gt;= w.threshold
return state, decided</span>
}
// Calc calculates confidence based on votes
func Calc(yes, total, prev int) (float64, int) <span class="cov8" title="1">{
if total == 0 </span><span class="cov0" title="0">{
return 0, prev
}</span>
<span class="cov8" title="1">ratio := float64(yes) / float64(total)
// Calculate new confidence
var conf int
if ratio &gt; 0.5 </span><span class="cov8" title="1">{
conf = yes - (total - yes) // Difference between yes and no
if conf &lt; 0 </span><span class="cov0" title="0">{
conf = 0
}</span>
} else<span class="cov8" title="1"> {
conf = 0
}</span>
// Consider previous confidence
<span class="cov8" title="1">if prev &gt; 0 &amp;&amp; conf &gt; 0 </span><span class="cov8" title="1">{
conf += prev / 2 // Boost with previous confidence
}</span>
<span class="cov8" title="1">return ratio, conf</span>
}
</pre>
<pre class="file" id="file70" style="display: none">package horizon
import (
"github.com/luxfi/consensus/core/dag"
)
type VertexID [32]byte
type Meta interface {
ID() VertexID
Author() string
Round() uint64
Parents() []VertexID
}
type View interface {
Get(VertexID) (Meta, bool)
ByRound(round uint64) []Meta
Supports(from VertexID, author string, round uint64) bool
}
type Params struct{ N, F int }
// TransitiveClosure computes the transitive closure of a vertex in the DAG
func TransitiveClosure[V comparable](store dag.Store[V], vertex V) []V <span class="cov8" title="1">{
// TODO: Implement transitive closure computation
return []V{vertex}
}</span>
// Certificate represents a proof that a vertex has achieved consensus
type Certificate[V comparable] struct {
Vertex V
Proof []V
Threshold int
}
// ValidateCertificate checks if a certificate is valid given a validator function
func ValidateCertificate[V comparable](store dag.Store[V], cert Certificate[V], isValid func(V) bool) bool <span class="cov8" title="1">{
// TODO: Implement certificate validation
validCount := 0
for _, proof := range cert.Proof </span><span class="cov8" title="1">{
if isValid(proof) </span><span class="cov8" title="1">{
validCount++
}</span>
}
<span class="cov8" title="1">return validCount &gt;= cert.Threshold</span>
}
// SkipList represents a skip list data structure for efficient DAG traversal
type SkipList[V comparable] struct {
Levels map[V][]V
}
// BuildSkipList constructs a skip list from DAG vertices for efficient navigation
func BuildSkipList[V comparable](store dag.Store[V], vertices []V) *SkipList[V] <span class="cov8" title="1">{
// TODO: Implement skip list construction
sl := &amp;SkipList[V]{
Levels: make(map[V][]V),
}
// Simple placeholder: each vertex points to its first parent
for _, v := range vertices </span><span class="cov8" title="1">{
if block, exists := store.Get(v); exists </span><span class="cov8" title="1">{
parents := block.Parents()
if len(parents) &gt; 0 </span><span class="cov8" title="1">{
sl.Levels[v] = []V{parents[0]}
}</span> else<span class="cov0" title="0"> {
sl.Levels[v] = []V{}
}</span>
}
}
<span class="cov8" title="1">return sl</span>
}
// FindPath finds a path between two vertices in the DAG
func FindPath[V comparable](store dag.Store[V], from, to V) ([]V, bool) <span class="cov8" title="1">{
// TODO: Implement path finding algorithm
// Simple placeholder: return single vertex path if vertices exist
if _, exists1 := store.Get(from); exists1 </span><span class="cov8" title="1">{
if _, exists2 := store.Get(to); exists2 </span><span class="cov8" title="1">{
return []V{from, to}, true
}</span>
}
<span class="cov0" title="0">return nil, false</span>
}
</pre>
<pre class="file" id="file71" style="display: none">package nebula
import (
"context"
"time"
"github.com/luxfi/consensus/prism"
"github.com/luxfi/consensus/protocol/field"
"github.com/luxfi/consensus/wave"
)
// VID represents a vertex identifier in the DAG
type VID interface{ comparable }
// Nebula implements DAG consensus using the internal Field engine
type Nebula[V VID] struct {
fieldEngine *field.Driver[V]
config Config
}
// Config holds configuration for Nebula consensus mode
type Config struct {
PollSize int // sample size for voting
Alpha float64 // threshold ratio
Beta uint32 // confidence threshold
RoundTO time.Duration // round timeout
GenesisSet []byte // genesis vertex set
}
// NewNebula creates a new Nebula instance with Field engine
func NewNebula[V VID](cfg Config, cut prism.Cut[V], tx wave.Transport[V], store field.Store[V], prop field.Proposer[V], com field.Committer[V]) *Nebula[V] <span class="cov0" title="0">{
fieldConfig := field.Config{
PollSize: cfg.PollSize,
Alpha: cfg.Alpha,
Beta: cfg.Beta,
RoundTO: cfg.RoundTO,
}
return &amp;Nebula[V]{
fieldEngine: field.NewDriver(fieldConfig, cut, tx, store, prop, com),
config: cfg,
}
}</span>
// Start begins Nebula DAG consensus operation
func (n *Nebula[V]) Start(ctx context.Context) error <span class="cov0" title="0">{
return n.fieldEngine.Start(ctx)
}</span>
// Stop ends Nebula DAG consensus operation
func (n *Nebula[V]) Stop(ctx context.Context) error <span class="cov0" title="0">{
return n.fieldEngine.Stop(ctx)
}</span>
// ProposeVertex proposes a new vertex to the DAG
func (n *Nebula[V]) ProposeVertex(ctx context.Context, parents []V) (V, error) <span class="cov0" title="0">{
return n.fieldEngine.Propose(ctx, parents)
}</span>
// Tick performs one consensus round for DAG progression
func (n *Nebula[V]) Tick(ctx context.Context) error <span class="cov0" title="0">{
return n.fieldEngine.Tick(ctx)
}</span>
// OnObserve should be called when observing new vertices from the network
func (n *Nebula[V]) OnObserve(ctx context.Context, vertex V) <span class="cov0" title="0">{
n.fieldEngine.OnObserve(ctx, vertex)
}</span>
// GetFrontier returns the current DAG frontier (tips)
func (n *Nebula[V]) GetFrontier() []V <span class="cov0" title="0">{
return n.fieldEngine.GetFrontier()
}</span>
// IsFinalized checks if a vertex is finalized in the DAG
func (n *Nebula[V]) IsFinalized(vertex V) bool <span class="cov0" title="0">{
return n.fieldEngine.IsFinalized(vertex)
}</span>
// GetCommittedVertices returns vertices that have been committed in order
func (n *Nebula[V]) GetCommittedVertices() []V <span class="cov0" title="0">{
return n.fieldEngine.GetCommittedVertices()
}</span>
</pre>
<pre class="file" id="file72" style="display: none">package nova
import (
"context"
"time"
"github.com/luxfi/consensus/prism"
"github.com/luxfi/consensus/protocol/ray"
"github.com/luxfi/consensus/wave"
)
// Nova implements linear blockchain consensus using the internal Ray engine
type Nova[T comparable] struct {
rayEngine *ray.Driver[T]
config Config
}
// Config holds configuration for Nova consensus mode
type Config struct {
SampleSize int // k parameter for sampling
Alpha float64 // threshold ratio
Beta uint32 // confidence threshold
RoundTO time.Duration // round timeout
GenesisHash [32]byte // genesis block hash
}
// NewNova creates a new Nova instance with Ray engine
func NewNova[T comparable](cfg Config, cut prism.Cut[T], tx wave.Transport[T], source ray.Source[T], sink ray.Sink[T]) *Nova[T] <span class="cov0" title="0">{
rayConfig := ray.Config{
PollSize: cfg.SampleSize,
Alpha: cfg.Alpha,
Beta: cfg.Beta,
RoundTO: cfg.RoundTO,
}
return &amp;Nova[T]{
rayEngine: ray.NewDriver(rayConfig, cut, tx, source, sink),
config: cfg,
}
}</span>
// Start begins Nova consensus operation
func (n *Nova[T]) Start(ctx context.Context) error <span class="cov0" title="0">{
return n.rayEngine.Start(ctx)
}</span>
// Stop ends Nova consensus operation
func (n *Nova[T]) Stop(ctx context.Context) error <span class="cov0" title="0">{
return n.rayEngine.Stop(ctx)
}</span>
// ProposeBlock proposes a new block for the current height
func (n *Nova[T]) ProposeBlock(ctx context.Context, block T) error <span class="cov0" title="0">{
return n.rayEngine.Propose(ctx, block)
}</span>
// Tick performs one consensus round for linear chain progression
func (n *Nova[T]) Tick(ctx context.Context) error <span class="cov0" title="0">{
return n.rayEngine.Tick(ctx)
}</span>
// GetPreference returns the current preferred block
func (n *Nova[T]) GetPreference() (T, bool) <span class="cov0" title="0">{
return n.rayEngine.GetPreference()
}</span>
// IsFinalized checks if a block is finalized
func (n *Nova[T]) IsFinalized(block T) bool <span class="cov0" title="0">{
return n.rayEngine.IsFinalized(block)
}</span>
// Height returns the current blockchain height
func (n *Nova[T]) Height() uint64 <span class="cov0" title="0">{
return n.rayEngine.Height()
}</span>
</pre>
<pre class="file" id="file73" style="display: none">// Copyright (C) 2025, Lux Industries Inc. All rights reserved.
// Quasar Hybrid Consensus: BLS + Corona for Full Post-Quantum Security
package quasar
import (
"crypto/rand"
"errors"
"fmt"
"sync"
"github.com/luxfi/crypto/bls"
"github.com/luxfi/crypto/mldsa"
)
// QuasarHybridConsensus implements parallel BLS+Corona for PQ-safe consensus
type QuasarHybridConsensus struct {
mu sync.RWMutex
// BLS for classical threshold signatures
blsThreshold int
blsKeys map[string]*bls.SecretKey
blsPubKeys map[string]*bls.PublicKey
// Corona for post-quantum signatures
coronaEngine CoronaPQ
coronaKeys map[string]*CoronaKeyPair
// Hybrid signature aggregation
pendingBLS map[string][]*bls.Signature
pendingCorona map[string][]CoronaSignature
// Consensus state
validators map[string]*Validator
threshold int // Number of validators needed for consensus
}
// CoronaPQ provides real post-quantum signatures using ML-DSA
type CoronaPQ struct {
mode mldsa.Mode
}
// CoronaKeyPair holds a post-quantum key pair
type CoronaKeyPair struct {
PrivateKey *mldsa.PrivateKey
PublicKey *mldsa.PublicKey
}
// CoronaSignature represents a post-quantum signature
type CoronaSignature struct {
Signature []byte
PublicKey []byte
ValidatorID string
}
// Validator represents a consensus validator
type Validator struct {
ID string
BLSPubKey *bls.PublicKey
CoronaPub *mldsa.PublicKey
Weight uint64
Active bool
}
// NewQuasarHybridConsensus creates a new hybrid consensus engine
func NewQuasarHybridConsensus(threshold int) (*QuasarHybridConsensus, error) <span class="cov0" title="0">{
if threshold &lt; 1 </span><span class="cov0" title="0">{
return nil, errors.New("threshold must be at least 1")
}</span>
<span class="cov0" title="0">return &amp;QuasarHybridConsensus{
blsThreshold: threshold,
blsKeys: make(map[string]*bls.SecretKey),
blsPubKeys: make(map[string]*bls.PublicKey),
coronaEngine: CoronaPQ{mode: mldsa.MLDSA65}, // Level 3 security
coronaKeys: make(map[string]*CoronaKeyPair),
pendingBLS: make(map[string][]*bls.Signature),
pendingCorona: make(map[string][]CoronaSignature),
validators: make(map[string]*Validator),
threshold: threshold,
}, nil</span>
}
// AddValidator adds a validator to the consensus
func (q *QuasarHybridConsensus) AddValidator(id string, weight uint64) error <span class="cov0" title="0">{
q.mu.Lock()
defer q.mu.Unlock()
// Generate BLS key pair
blsSK, err := bls.NewSecretKey()
if err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("failed to generate BLS key: %w", err)
}</span>
<span class="cov0" title="0">blsPK := blsSK.PublicKey()
// Generate Corona (ML-DSA) key pair
coronaPriv, err := mldsa.GenerateKey(rand.Reader, q.coronaEngine.mode)
if err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("failed to generate Corona key: %w", err)
}</span>
// Store keys
<span class="cov0" title="0">q.blsKeys[id] = blsSK
q.blsPubKeys[id] = blsPK
q.coronaKeys[id] = &amp;CoronaKeyPair{
PrivateKey: coronaPriv,
PublicKey: coronaPriv.PublicKey,
}
// Add validator
q.validators[id] = &amp;Validator{
ID: id,
BLSPubKey: blsPK,
CoronaPub: coronaPriv.PublicKey,
Weight: weight,
Active: true,
}
return nil</span>
}
// SignMessage signs a message with both BLS and Corona
func (q *QuasarHybridConsensus) SignMessage(validatorID string, message []byte) (*HybridSignature, error) <span class="cov0" title="0">{
q.mu.RLock()
defer q.mu.RUnlock()
// Get keys
blsSK, exists := q.blsKeys[validatorID]
if !exists </span><span class="cov0" title="0">{
return nil, errors.New("validator not found")
}</span>
<span class="cov0" title="0">coronaKP, exists := q.coronaKeys[validatorID]
if !exists </span><span class="cov0" title="0">{
return nil, errors.New("corona keys not found")
}</span>
// Create BLS signature
<span class="cov0" title="0">blsSig := blsSK.Sign(message)
// Create Corona (ML-DSA) signature
coronaSig, err := coronaKP.PrivateKey.Sign(rand.Reader, message, nil)
if err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("Corona sign failed: %w", err)
}</span>
<span class="cov0" title="0">return &amp;HybridSignature{
BLS: bls.SignatureToBytes(blsSig),
Corona: coronaSig,
ValidatorID: validatorID,
}, nil</span>
}
// VerifyHybridSignature verifies both BLS and Corona signatures
func (q *QuasarHybridConsensus) VerifyHybridSignature(message []byte, sig *HybridSignature) bool <span class="cov0" title="0">{
q.mu.RLock()
defer q.mu.RUnlock()
validator, exists := q.validators[sig.ValidatorID]
if !exists </span><span class="cov0" title="0">{
return false
}</span>
// Verify BLS signature
<span class="cov0" title="0">blsSig, err := bls.SignatureFromBytes(sig.BLS)
if err != nil </span><span class="cov0" title="0">{
return false
}</span>
// BLS verification using Verify method
<span class="cov0" title="0">if !bls.Verify(validator.BLSPubKey, blsSig, message) </span><span class="cov0" title="0">{
return false
}</span>
// Verify Corona (ML-DSA) signature
<span class="cov0" title="0">if !validator.CoronaPub.Verify(message, sig.Corona, nil) </span><span class="cov0" title="0">{
return false
}</span>
<span class="cov0" title="0">return true</span>
}
// AggregateSignatures aggregates signatures for a message
func (q *QuasarHybridConsensus) AggregateSignatures(message []byte, signatures []*HybridSignature) (*AggregatedSignature, error) <span class="cov0" title="0">{
q.mu.Lock()
defer q.mu.Unlock()
if len(signatures) &lt; q.threshold </span><span class="cov0" title="0">{
return nil, fmt.Errorf("insufficient signatures: %d &lt; %d", len(signatures), q.threshold)
}</span>
// Aggregate BLS signatures
<span class="cov0" title="0">blsSigs := make([]*bls.Signature, 0, len(signatures))
for _, sig := range signatures </span><span class="cov0" title="0">{
blsSig, err := bls.SignatureFromBytes(sig.BLS)
if err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("invalid BLS signature: %w", err)
}</span>
<span class="cov0" title="0">blsSigs = append(blsSigs, blsSig)</span>
}
<span class="cov0" title="0">aggregatedBLS, err := bls.AggregateSignatures(blsSigs)
if err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("BLS aggregation failed: %w", err)
}</span>
// Collect Corona signatures (can't aggregate, but verify threshold)
<span class="cov0" title="0">coronaSigs := make([]CoronaSignature, 0, len(signatures))
for _, sig := range signatures </span><span class="cov0" title="0">{
coronaSigs = append(coronaSigs, CoronaSignature{
Signature: sig.Corona,
ValidatorID: sig.ValidatorID,
})
}</span>
<span class="cov0" title="0">return &amp;AggregatedSignature{
BLSAggregated: bls.SignatureToBytes(aggregatedBLS),
CoronaSigs: coronaSigs,
SignerCount: len(signatures),
}, nil</span>
}
// VerifyAggregatedSignature verifies an aggregated signature
func (q *QuasarHybridConsensus) VerifyAggregatedSignature(message []byte, aggSig *AggregatedSignature) bool <span class="cov0" title="0">{
q.mu.RLock()
defer q.mu.RUnlock()
// Check threshold
if aggSig.SignerCount &lt; q.threshold </span><span class="cov0" title="0">{
return false
}</span>
// Verify aggregated BLS signature
<span class="cov0" title="0">blsSig, err := bls.SignatureFromBytes(aggSig.BLSAggregated)
if err != nil </span><span class="cov0" title="0">{
return false
}</span>
// Collect public keys for BLS verification
<span class="cov0" title="0">pubKeys := make([]*bls.PublicKey, 0, len(aggSig.CoronaSigs))
for _, coronaSig := range aggSig.CoronaSigs </span><span class="cov0" title="0">{
validator, exists := q.validators[coronaSig.ValidatorID]
if !exists || !validator.Active </span><span class="cov0" title="0">{
return false
}</span>
<span class="cov0" title="0">pubKeys = append(pubKeys, validator.BLSPubKey)</span>
}
<span class="cov0" title="0">aggPubKey, err := bls.AggregatePublicKeys(pubKeys)
if err != nil </span><span class="cov0" title="0">{
return false
}</span>
<span class="cov0" title="0">if !bls.Verify(aggPubKey, blsSig, message) </span><span class="cov0" title="0">{
return false
}</span>
// Verify each Corona signature
<span class="cov0" title="0">for _, coronaSig := range aggSig.CoronaSigs </span><span class="cov0" title="0">{
validator, exists := q.validators[coronaSig.ValidatorID]
if !exists </span><span class="cov0" title="0">{
return false
}</span>
<span class="cov0" title="0">if !validator.CoronaPub.Verify(message, coronaSig.Signature, nil) </span><span class="cov0" title="0">{
return false
}</span>
}
<span class="cov0" title="0">return true</span>
}
// HybridSignature contains both BLS and Corona signatures
type HybridSignature struct {
BLS []byte
Corona []byte
ValidatorID string
}
// AggregatedSignature contains aggregated BLS and individual Corona signatures
type AggregatedSignature struct {
BLSAggregated []byte
CoronaSigs []CoronaSignature
SignerCount int
}
// GetActiveValidatorCount returns the number of active validators
func (q *QuasarHybridConsensus) GetActiveValidatorCount() int <span class="cov0" title="0">{
q.mu.RLock()
defer q.mu.RUnlock()
count := 0
for _, v := range q.validators </span><span class="cov0" title="0">{
if v.Active </span><span class="cov0" title="0">{
count++
}</span>
}
<span class="cov0" title="0">return count</span>
}
// GetThreshold returns the consensus threshold
func (q *QuasarHybridConsensus) GetThreshold() int <span class="cov0" title="0">{
return q.threshold
}</span>
</pre>
<pre class="file" id="file74" style="display: none">package quasar
import (
"context"
"time"
"github.com/luxfi/consensus/config"
"github.com/luxfi/consensus/core/dag"
)
// CertBundle contains both classical and quantum certificates
type CertBundle struct {
BLSAgg []byte // BLS aggregate signature
PQCert []byte // Post-quantum certificate
}
// Bundle represents a finalized epoch bundle
type Bundle struct {
Epoch uint64
Root []byte
BLSAgg []byte
PQBatch []byte
Binding []byte
}
// Verify checks both BLS and PQ certificates
func (c *CertBundle) Verify(_ []string) bool <span class="cov8" title="1">{
// Placeholder verification
// In production: verify BLS signature and PQ certificate
return c.BLSAgg != nil &amp;&amp; c.PQCert != nil &amp;&amp; len(c.BLSAgg) &gt; 0 &amp;&amp; len(c.PQCert) &gt; 0
}</span>
// QBlock represents a quantum-finalized block
type QBlock struct {
Height uint64
Hash string
Timestamp time.Time
Cert *CertBundle
}
// Client interface for Quasar operations
type Client interface {
SubmitCheckpoint(epoch uint64, root []byte, attest []byte) error
FetchBundle(epoch uint64) (Bundle, error)
Verify(Bundle) bool
}
// VertexID represents a P-Chain vertex identifier
type VertexID [32]byte
// Quasar implements P-Chain post-quantum consensus with event horizon finality
type Quasar struct {
// Configuration
K int
Alpha float64
Beta uint32
// Keys
blsKey []byte
pqKey []byte
// P-Chain state
horizons []dag.EventHorizon[VertexID]
store dag.Store[VertexID]
// Callback
finalizedCb func(QBlock)
}
// New creates a new Quasar P-Chain instance
func New(cfg config.Parameters, store dag.Store[VertexID]) *Quasar <span class="cov8" title="1">{
return &amp;Quasar{
K: cfg.K,
Alpha: cfg.Alpha,
Beta: cfg.Beta,
horizons: make([]dag.EventHorizon[VertexID], 0),
store: store,
}
}</span>
// Initialize sets up keys for Quasar
func (q *Quasar) Initialize(_ context.Context, blsKey, pqKey []byte) error <span class="cov8" title="1">{
q.blsKey = blsKey
q.pqKey = pqKey
return nil
}</span>
// SetFinalizedCallback sets the callback for finalized blocks
func (q *Quasar) SetFinalizedCallback(cb func(QBlock)) <span class="cov8" title="1">{
q.finalizedCb = cb
}</span>
// phaseI proposes a block from the DAG frontier
func (q *Quasar) phaseI(frontier []string) string <span class="cov8" title="1">{
// Select highest confidence block
// Placeholder: return first block
if len(frontier) &gt; 0 </span><span class="cov8" title="1">{
return frontier[0]
}</span>
<span class="cov0" title="0">return ""</span>
}
// phaseII creates certificates if threshold is met
func (q *Quasar) phaseII(votes map[string]int, proposal string) *CertBundle <span class="cov8" title="1">{
total := 0
support := 0
for block, count := range votes </span><span class="cov8" title="1">{
total += count
if block == proposal </span><span class="cov8" title="1">{
support = count
}</span>
}
<span class="cov8" title="1">if total == 0 </span><span class="cov0" title="0">{
return nil
}</span>
// Check if support meets alpha threshold
<span class="cov8" title="1">if float64(support)/float64(total) &gt;= q.Alpha </span><span class="cov8" title="1">{
// Create certificates (placeholder)
return &amp;CertBundle{
BLSAgg: []byte("mock-bls-aggregate"),
PQCert: []byte("mock-pq-certificate"),
}
}</span>
<span class="cov8" title="1">return nil</span>
}
// EstablishHorizon creates a new event horizon for P-Chain finality
func (q *Quasar) EstablishHorizon(ctx context.Context, checkpoint VertexID, validators []string) (*dag.EventHorizon[VertexID], error) <span class="cov0" title="0">{
// Compute new event horizon using Corona + BLS signatures
horizon := dag.EventHorizon[VertexID]{
Checkpoint: checkpoint,
Height: uint64(len(q.horizons)) + 1,
Validators: validators,
Signature: q.createHorizonSignature(checkpoint, validators),
}
q.horizons = append(q.horizons, horizon)
return &amp;horizon, nil
}</span>
// IsBeyondHorizon checks if a vertex is beyond the event horizon (finalized)
func (q *Quasar) IsBeyondHorizon(vertex VertexID) bool <span class="cov0" title="0">{
if len(q.horizons) == 0 </span><span class="cov0" title="0">{
return false
}</span>
<span class="cov0" title="0">latestHorizon := q.horizons[len(q.horizons)-1]
return dag.BeyondHorizon(q.store, vertex, latestHorizon)</span>
}
// ComputeCanonicalOrder returns the canonical order of finalized vertices
func (q *Quasar) ComputeCanonicalOrder() []VertexID <span class="cov0" title="0">{
if len(q.horizons) == 0 </span><span class="cov0" title="0">{
return []VertexID{}
}</span>
<span class="cov0" title="0">latestHorizon := q.horizons[len(q.horizons)-1]
return dag.ComputeHorizonOrder(q.store, latestHorizon)</span>
}
// GetLatestHorizon returns the most recent event horizon
func (q *Quasar) GetLatestHorizon() *dag.EventHorizon[VertexID] <span class="cov0" title="0">{
if len(q.horizons) == 0 </span><span class="cov0" title="0">{
return nil
}</span>
<span class="cov0" title="0">return &amp;q.horizons[len(q.horizons)-1]</span>
}
// createHorizonSignature creates a Corona + BLS signature for the event horizon
func (q *Quasar) createHorizonSignature(checkpoint VertexID, validators []string) []byte <span class="cov0" title="0">{
// TODO: Implement Corona + BLS fusion signature
// This should combine:
// 1. BLS aggregate signature for efficiency
// 2. Corona post-quantum threshold signature for security
// Placeholder implementation
signature := append(q.blsKey, q.pqKey...)
signature = append(signature, checkpoint[:]...)
return signature
}</span>
</pre>
<pre class="file" id="file75" style="display: none">// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
// Package corona provides post-quantum cryptographic primitives for the Lux consensus.
// This is a stub implementation that forwards to the actual implementation in github.com/luxfi/crypto/corona.
package quasar
import (
"crypto/rand"
"errors"
)
// Type aliases for cleaner API
type (
Precomp = []byte
Share = []byte
Cert = []byte
SecretKey = []byte
PublicKey = []byte
Signature = []byte // Alias for Share or Cert depending on context
)
// SecurityLevel represents the post-quantum security level
type SecurityLevel int
const (
SecurityLow SecurityLevel = 0
SecurityMedium SecurityLevel = 1
SecurityHigh SecurityLevel = 2
)
// CoronaEngine represents the post-quantum consensus engine
type CoronaEngine interface {
// Initialize the engine with security parameters
Initialize(level SecurityLevel) error
// Sign a message with the secret key
Sign(msg []byte, sk SecretKey) (Signature, error)
// Verify a signature
Verify(msg []byte, sig Signature, pk PublicKey) bool
// Generate a new key pair
GenerateKeyPair() (SecretKey, PublicKey, error)
// KEM operations for post-quantum key exchange
Encapsulate(pk PublicKey) ([]byte, []byte, error)
Decapsulate(ct []byte, sk SecretKey) ([]byte, error)
// Shared secret operations
CombineSharedSecrets(ss1, ss2 []byte) []byte
DeriveKey(secret []byte, length int) []byte
}
// Error variables
var (
ErrInvalidCertificate = errors.New("invalid certificate")
ErrMissingCertificate = errors.New("missing certificate")
ErrCertificateMismatch = errors.New("certificate mismatch")
)
// stubEngine is a stub implementation of CoronaEngine for testing
type stubEngine struct {
level SecurityLevel
}
// NewCorona creates a new corona engine
func NewCorona() CoronaEngine <span class="cov8" title="1">{
return &amp;stubEngine{}
}</span>
// Initialize sets the security level
func (e *stubEngine) Initialize(level SecurityLevel) error <span class="cov0" title="0">{
e.level = level
return nil
}</span>
// Sign signs a message (stub implementation)
func (e *stubEngine) Sign(_ []byte, sk SecretKey) (Signature, error) <span class="cov8" title="1">{
// Stub implementation - return non-zero signature
sig := make([]byte, 32)
// Put some non-zero bytes to make it a "valid" signature
for i := range sig </span><span class="cov8" title="1">{
sig[i] = byte(i + 1)
}</span>
<span class="cov8" title="1">return sig, nil</span>
}
// Verify verifies a signature (stub implementation)
func (e *stubEngine) Verify(msg []byte, sig Signature, pk PublicKey) bool <span class="cov8" title="1">{
// Stub implementation - check if signature is non-zero
// A real implementation would verify the cryptographic signature
for _, b := range sig </span><span class="cov8" title="1">{
if b != 0 </span><span class="cov8" title="1">{
return true // Non-zero signature considered valid for stub
}</span>
}
<span class="cov8" title="1">return false</span> // All-zero signature is invalid
}
// GenerateKeyPair generates a new key pair (stub implementation)
func (e *stubEngine) GenerateKeyPair() (SecretKey, PublicKey, error) <span class="cov8" title="1">{
// Stub implementation
sk := make([]byte, 32)
pk := make([]byte, 32)
return sk, pk, nil
}</span>
// Encapsulate generates a ciphertext and shared secret (stub implementation)
func (e *stubEngine) Encapsulate(pk PublicKey) ([]byte, []byte, error) <span class="cov8" title="1">{
ct := make([]byte, 64)
ss := make([]byte, 32)
if _, err := rand.Read(ct); err != nil </span><span class="cov0" title="0">{
return nil, nil, err
}</span>
<span class="cov8" title="1">if _, err := rand.Read(ss); err != nil </span><span class="cov0" title="0">{
return nil, nil, err
}</span>
<span class="cov8" title="1">return ct, ss, nil</span>
}
// Decapsulate recovers shared secret from ciphertext (stub implementation)
func (e *stubEngine) Decapsulate(ct []byte, sk SecretKey) ([]byte, error) <span class="cov8" title="1">{
ss := make([]byte, 32)
if _, err := rand.Read(ss); err != nil </span><span class="cov0" title="0">{
return nil, err
}</span>
<span class="cov8" title="1">return ss, nil</span>
}
// CombineSharedSecrets combines two shared secrets (stub implementation)
func (e *stubEngine) CombineSharedSecrets(ss1, ss2 []byte) []byte <span class="cov8" title="1">{
combined := make([]byte, 32)
for i := 0; i &lt; 32 &amp;&amp; i &lt; len(ss1) &amp;&amp; i &lt; len(ss2); i++ </span><span class="cov8" title="1">{
combined[i] = ss1[i] ^ ss2[i]
}</span>
<span class="cov8" title="1">return combined</span>
}
// DeriveKey derives a key from shared secret (stub implementation)
func (e *stubEngine) DeriveKey(secret []byte, length int) []byte <span class="cov8" title="1">{
key := make([]byte, length)
copy(key, secret)
return key
}</span>
// KeyGen generates a key pair from seed
func KeyGen(seed []byte) ([]byte, []byte, error) <span class="cov0" title="0">{
// Stub implementation
sk := make([]byte, 32)
pk := make([]byte, 32)
copy(sk, seed)
copy(pk, seed)
return sk, pk, nil
}</span>
// Precompute generates a precomputed share
func Precompute(sk []byte) (Precomp, error) <span class="cov0" title="0">{
// Stub implementation
precomp := make([]byte, 32)
if _, err := rand.Read(precomp); err != nil </span><span class="cov0" title="0">{
return nil, err
}</span>
<span class="cov0" title="0">return precomp, nil</span>
}
// QuickSign signs using a precomputed share
func QuickSign(precomp Precomp, msg []byte) (Share, error) <span class="cov0" title="0">{
// Stub implementation
share := make([]byte, 32)
copy(share, precomp)
// XOR with message hash for demo
for i := 0; i &lt; len(share) &amp;&amp; i &lt; len(msg); i++ </span><span class="cov0" title="0">{
share[i] ^= msg[i]
}</span>
<span class="cov0" title="0">return share, nil</span>
}
// VerifyShare verifies a share signature
func VerifyShare(pk []byte, msg []byte, share []byte) bool <span class="cov0" title="0">{
// Stub implementation - always return true
return true
}</span>
// Aggregate aggregates shares into a certificate
func Aggregate(shares []Share) (Cert, error) <span class="cov0" title="0">{
// Stub implementation
if len(shares) == 0 </span><span class="cov0" title="0">{
return nil, errors.New("no shares to aggregate")
}</span>
<span class="cov0" title="0">cert := make([]byte, 32)
// XOR all shares together for demo
for _, share := range shares </span><span class="cov0" title="0">{
for i := 0; i &lt; len(cert) &amp;&amp; i &lt; len(share); i++ </span><span class="cov0" title="0">{
cert[i] ^= share[i]
}</span>
}
<span class="cov0" title="0">return cert, nil</span>
}
// Verify verifies a certificate
func Verify(pk []byte, msg []byte, cert []byte) bool <span class="cov0" title="0">{
// Stub implementation - always return true
return true
}</span>
// NewCertificate creates a new empty certificate
// func NewCertificate(round, height uint64, blockHash [32]byte) *Certificate {
// return rt.NewCertificate(round, height, blockHash)
// }
// NewCertificateManager creates a new certificate manager
// func NewCertificateManager(nodeID ids.NodeID, blsKey, rtKey interface{}, validators ValidatorSet) *CertificateManager {
// return rt.NewCertificateManager(nodeID, blsKey, rtKey, validators)
// }
// VerifyAggregate verifies an aggregate signature
// func VerifyAggregate(pubKeys [][]byte, msg []byte, aggregateData []byte, threshold int) error {
// return rt.VerifyAggregate(pubKeys, msg, aggregateData, threshold)
// }
</pre>
<pre class="file" id="file76" style="display: none">// Copyright (C) 2025, Lux Industries Inc. All rights reserved.
// Verkle Witness for Hyper-Efficient Verification with PQ Finality
package quasar
import (
"bytes"
"crypto/sha256"
"errors"
"sync"
"github.com/luxfi/crypto/bls"
"github.com/luxfi/crypto/ipa/banderwagon"
)
// VerkleWitness provides hyper-efficient state verification
// Assumes every block is PQ-final via BLS+Corona threshold
type VerkleWitness struct {
mu sync.RWMutex
// Verkle tree commitment
root *banderwagon.Element
// Cached witnesses for fast verification
witnessCache map[string]*WitnessProof
cacheSize int
// PQ finality assumption
assumePQFinal bool
minThreshold int
}
// WitnessProof contains the minimal proof for state verification
type WitnessProof struct {
// Verkle proof components
Commitment []byte // 32 bytes banderwagon point
Path []byte // Compressed path in tree
OpeningProof []byte // IPA opening proof
// PQ finality certificate (lightweight)
BLSAggregate []byte // Aggregated BLS signature
CoronaBits []byte // Bitfield of Corona signers
ValidatorSet []byte // Compressed validator set hash
// Block metadata
BlockHeight uint64
StateRoot []byte
Timestamp uint64
}
// NewVerkleWitness creates a lightweight Verkle witness verifier
func NewVerkleWitness(threshold int) *VerkleWitness <span class="cov0" title="0">{
return &amp;VerkleWitness{
witnessCache: make(map[string]*WitnessProof),
cacheSize: 1000, // Cache last 1000 witnesses
assumePQFinal: true, // Always assume PQ finality
minThreshold: threshold,
}
}</span>
// VerifyStateTransition verifies state transition with minimal overhead
// Assumes PQ finality via BLS+Corona threshold already met
func (v *VerkleWitness) VerifyStateTransition(witness *WitnessProof) error <span class="cov0" title="0">{
v.mu.RLock()
defer v.mu.RUnlock()
// Fast path: If PQ final, skip heavy verification
if v.assumePQFinal &amp;&amp; v.checkPQFinality(witness) </span><span class="cov0" title="0">{
// Just verify the Verkle commitment
return v.verifyVerkleCommitment(witness)
}</span>
// Slow path: Full verification (shouldn't happen with PQ finality)
<span class="cov0" title="0">return v.fullVerification(witness)</span>
}
// checkPQFinality does lightweight check that BLS+Corona threshold is met
func (v *VerkleWitness) checkPQFinality(witness *WitnessProof) bool <span class="cov0" title="0">{
// Count set bits in Corona bitfield (each bit = 1 validator signed)
coronaCount := countSetBits(witness.CoronaBits)
// BLS aggregate implies same threshold was met
// Just check we have enough signers
return coronaCount &gt;= v.minThreshold
}</span>
// verifyVerkleCommitment does ultra-fast Verkle proof verification
func (v *VerkleWitness) verifyVerkleCommitment(witness *WitnessProof) error <span class="cov0" title="0">{
// Reconstruct the commitment point
var commitment banderwagon.Element
if err := commitment.SetBytes(witness.Commitment); err != nil </span><span class="cov0" title="0">{
return errors.New("invalid commitment")
}</span>
// Verify opening proof (IPA)
// This is O(log n) and very fast
<span class="cov0" title="0">if !verifyIPAOpening(&amp;commitment, witness.Path, witness.OpeningProof) </span><span class="cov0" title="0">{
return errors.New("invalid Verkle opening proof")
}</span>
// Cache the witness for future use
<span class="cov0" title="0">v.cacheWitness(witness)
return nil</span>
}
// fullVerification does complete verification (fallback, rarely used)
func (v *VerkleWitness) fullVerification(witness *WitnessProof) error <span class="cov0" title="0">{
// Verify BLS aggregate signature
if err := v.verifyBLSAggregate(witness.BLSAggregate, witness.ValidatorSet); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// Verify Corona threshold
<span class="cov0" title="0">if !v.verifyCoronaThreshold(witness.CoronaBits) </span><span class="cov0" title="0">{
return errors.New("Corona threshold not met")
}</span>
// Verify Verkle commitment
<span class="cov0" title="0">return v.verifyVerkleCommitment(witness)</span>
}
// CreateWitness creates a minimal witness for a state transition
func (v *VerkleWitness) CreateWitness(
stateRoot []byte,
blsAgg *bls.Signature,
coronaSigners []bool,
height uint64,
) (*WitnessProof, error) <span class="cov0" title="0">{
v.mu.Lock()
defer v.mu.Unlock()
// Create Verkle commitment
commitment := createVerkleCommitment(stateRoot)
// Create opening proof (IPA)
openingProof := createIPAProof(commitment, stateRoot)
// Compress Corona signers to bitfield
coronaBits := compressToBitfield(coronaSigners)
// Create witness
commitmentBytes := commitment.Bytes()
witness := &amp;WitnessProof{
Commitment: commitmentBytes[:],
Path: compressPath(stateRoot),
OpeningProof: openingProof,
BLSAggregate: bls.SignatureToBytes(blsAgg),
CoronaBits: coronaBits,
ValidatorSet: hashValidatorSet(),
BlockHeight: height,
StateRoot: stateRoot,
Timestamp: uint64(timeNow()),
}
// Cache it
v.cacheWitness(witness)
return witness, nil
}</span>
// BatchVerify verifies multiple witnesses in parallel (hyper-efficient)
func (v *VerkleWitness) BatchVerify(witnesses []*WitnessProof) error <span class="cov0" title="0">{
// Since we assume PQ finality, we can verify in parallel
errors := make(chan error, len(witnesses))
var wg sync.WaitGroup
for _, witness := range witnesses </span><span class="cov0" title="0">{
wg.Add(1)
go func(w *WitnessProof) </span><span class="cov0" title="0">{
defer wg.Done()
if err := v.VerifyStateTransition(w); err != nil </span><span class="cov0" title="0">{
errors &lt;- err
}</span>
}(witness)
}
<span class="cov0" title="0">wg.Wait()
close(errors)
// Check for any errors
for err := range errors </span><span class="cov0" title="0">{
if err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">return nil</span>
}
// Lightweight helper functions
func countSetBits(bits []byte) int <span class="cov0" title="0">{
count := 0
for _, b := range bits </span><span class="cov0" title="0">{
for b != 0 </span><span class="cov0" title="0">{
count += int(b &amp; 1)
b &gt;&gt;= 1
}</span>
}
<span class="cov0" title="0">return count</span>
}
func compressToBitfield(signers []bool) []byte <span class="cov0" title="0">{
bitfield := make([]byte, (len(signers)+7)/8)
for i, signed := range signers </span><span class="cov0" title="0">{
if signed </span><span class="cov0" title="0">{
bitfield[i/8] |= 1 &lt;&lt; (i % 8)
}</span>
}
<span class="cov0" title="0">return bitfield</span>
}
func createVerkleCommitment(stateRoot []byte) *banderwagon.Element <span class="cov0" title="0">{
// Create commitment from state root
var point banderwagon.Element
_ = point.SetBytes(stateRoot[:32]) // Safe to ignore: input is valid
return &amp;point
}</span>
func createIPAProof(commitment *banderwagon.Element, data []byte) []byte <span class="cov0" title="0">{
// Simplified IPA proof creation
hasher := sha256.New()
commitmentBytes := commitment.Bytes()
hasher.Write(commitmentBytes[:])
hasher.Write(data)
return hasher.Sum(nil)
}</span>
func verifyIPAOpening(commitment *banderwagon.Element, path []byte, proof []byte) bool <span class="cov0" title="0">{
// Simplified IPA verification (real implementation would use full IPA)
hasher := sha256.New()
commitmentBytes := commitment.Bytes()
hasher.Write(commitmentBytes[:])
hasher.Write(path)
expected := hasher.Sum(nil)
return bytes.Equal(expected, proof)
}</span>
func compressPath(stateRoot []byte) []byte <span class="cov0" title="0">{
// Compress the tree path
compressed := make([]byte, 16)
copy(compressed, stateRoot[:16])
return compressed
}</span>
func hashValidatorSet() []byte <span class="cov0" title="0">{
// Hash of current validator set
hasher := sha256.New()
hasher.Write([]byte("validator_set_v1"))
return hasher.Sum(nil)
}</span>
func timeNow() int64 <span class="cov0" title="0">{
return int64(0) // Placeholder
}</span>
func (v *VerkleWitness) cacheWitness(witness *WitnessProof) <span class="cov0" title="0">{
key := string(witness.StateRoot)
v.witnessCache[key] = witness
// Evict old entries if cache is full
if len(v.witnessCache) &gt; v.cacheSize </span><span class="cov0" title="0">{
// Simple eviction: remove first entry (could be improved with LRU)
for k := range v.witnessCache </span><span class="cov0" title="0">{
delete(v.witnessCache, k)
break</span>
}
}
}
func (v *VerkleWitness) verifyBLSAggregate(aggSig []byte, validatorSet []byte) error <span class="cov0" title="0">{
// Placeholder for BLS aggregate verification
// In production, this would verify against the validator set
return nil
}</span>
func (v *VerkleWitness) verifyCoronaThreshold(bits []byte) bool <span class="cov0" title="0">{
count := countSetBits(bits)
return count &gt;= v.minThreshold
}</span>
// GetCachedWitness retrieves a cached witness if available
func (v *VerkleWitness) GetCachedWitness(stateRoot []byte) (*WitnessProof, bool) <span class="cov0" title="0">{
v.mu.RLock()
defer v.mu.RUnlock()
witness, exists := v.witnessCache[string(stateRoot)]
return witness, exists
}</span>
// WitnessSize returns the size of a witness in bytes
func (w *WitnessProof) Size() int <span class="cov0" title="0">{
return len(w.Commitment) + len(w.Path) + len(w.OpeningProof) +
len(w.BLSAggregate) + len(w.CoronaBits) + len(w.ValidatorSet) +
8 + len(w.StateRoot) + 8 // BlockHeight + StateRoot + Timestamp
}</span>
// IsLightweight checks if witness is under 1KB (hyper-efficient)
func (w *WitnessProof) IsLightweight() bool <span class="cov0" title="0">{
return w.Size() &lt; 1024
}</span>
// CompressedWitness creates an even smaller witness for network transmission
type CompressedWitness struct {
CommitmentAndProof []byte // Combined commitment + proof
Metadata uint64 // Packed height + timestamp
Validators uint32 // Validator bitfield (up to 32 validators)
}
// Compress creates a compressed witness (&lt; 200 bytes)
func (w *WitnessProof) Compress() *CompressedWitness <span class="cov0" title="0">{
// Combine commitment and opening proof
combined := append(w.Commitment[:16], w.OpeningProof[:16]...)
// Pack metadata
metadata := (w.BlockHeight &lt;&lt; 32) | (w.Timestamp &amp; 0xFFFFFFFF)
// Compress validator bits to uint32 (supports up to 32 validators)
var validatorBits uint32
for i := 0; i &lt; len(w.CoronaBits) &amp;&amp; i &lt; 4; i++ </span><span class="cov0" title="0">{
validatorBits |= uint32(w.CoronaBits[i]) &lt;&lt; (i * 8)
}</span>
<span class="cov0" title="0">return &amp;CompressedWitness{
CommitmentAndProof: combined,
Metadata: metadata,
Validators: validatorBits,
}</span>
}
// Size returns size of compressed witness
func (c *CompressedWitness) Size() int <span class="cov0" title="0">{
return len(c.CommitmentAndProof) + 8 + 4 // ~44 bytes
}</span>
// VerifyCompressed verifies a compressed witness (ultra-fast)
func (v *VerkleWitness) VerifyCompressed(cw *CompressedWitness) error <span class="cov0" title="0">{
// Extract validator count from bitfield
validatorCount := 0
for i := uint32(0); i &lt; 32; i++ </span><span class="cov0" title="0">{
if cw.Validators&amp;(1&lt;&lt;i) != 0 </span><span class="cov0" title="0">{
validatorCount++
}</span>
}
// Check threshold (assuming PQ finality)
<span class="cov0" title="0">if validatorCount &lt; v.minThreshold </span><span class="cov0" title="0">{
return errors.New("insufficient validators")
}</span>
// With PQ finality assumption, we're done!
<span class="cov0" title="0">return nil</span>
}
</pre>
<pre class="file" id="file77" style="display: none">package ray
import (
"context"
"github.com/luxfi/consensus/types"
)
// Nova implements the Nova consensus protocol
type Nova struct {
nodeID types.NodeID
round uint64
}
// New creates a new Nova instance
func New(nodeID types.NodeID) *Nova <span class="cov0" title="0">{
return &amp;Nova{
nodeID: nodeID,
round: 0,
}
}</span>
// Start starts the Nova protocol
func (n *Nova) Start(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Stop stops the Nova protocol
func (n *Nova) Stop(ctx context.Context) error <span class="cov0" title="0">{
return nil
}</span>
// Round returns the current round
func (n *Nova) Round() uint64 <span class="cov0" title="0">{
return n.round
}</span>
// Propose proposes a value
func (n *Nova) Propose(ctx context.Context, value []byte) error <span class="cov0" title="0">{
n.round++
return nil
}</span>
</pre>
<pre class="file" id="file78" style="display: none">package ray
import (
"context"
"time"
"github.com/luxfi/consensus/prism"
"github.com/luxfi/consensus/types"
"github.com/luxfi/consensus/wave"
)
// ID is your item identifier (block hash, tx id, etc.).
type ID interface{ comparable }
// Source lets Ray pull next candidates to decide in linear order.
type Source[T ID] interface {
NextPending(ctx context.Context, n int) []T
}
// Sink receives final decisions in order.
type Sink[T ID] interface {
Decide(ctx context.Context, items []T, d types.Decision) error
}
// Transport bridges network vote requests &lt;-&gt; Photons the Wave consumes.
type Transport[T ID] interface {
RequestVotes(ctx context.Context, peers []types.NodeID, item T) &lt;-chan wave.Photon[T]
MakeLocalPhoton(item T, prefer bool) wave.Photon[T]
}
type Config struct {
PollSize int
Alpha float64
Beta uint32
RoundTO time.Duration
MaxBatch int
}
type Driver[T ID] struct {
wv wave.Wave[T]
cut prism.Cut[T]
tx Transport[T]
src Source[T]
out Sink[T]
cfg Config
height uint64
preference T
hasPreference bool
}
func NewDriver[T ID](cfg Config, cut prism.Cut[T], tx Transport[T], src Source[T], out Sink[T]) *Driver[T] <span class="cov0" title="0">{
if cfg.PollSize == 0 </span><span class="cov0" title="0">{
cfg.PollSize = 20
}</span>
<span class="cov0" title="0">if cfg.Alpha == 0 </span><span class="cov0" title="0">{
cfg.Alpha = 0.8
}</span>
<span class="cov0" title="0">if cfg.Beta == 0 </span><span class="cov0" title="0">{
cfg.Beta = 15
}</span>
<span class="cov0" title="0">if cfg.RoundTO == 0 </span><span class="cov0" title="0">{
cfg.RoundTO = 250 * time.Millisecond
}</span>
<span class="cov0" title="0">if cfg.MaxBatch == 0 </span><span class="cov0" title="0">{
cfg.MaxBatch = 64
}</span>
<span class="cov0" title="0">return &amp;Driver[T]{
wv: wave.New[T](wave.Config{K: cfg.PollSize, Alpha: cfg.Alpha, Beta: cfg.Beta, RoundTO: cfg.RoundTO}, cut, tx),
cut: cut, tx: tx, src: src, out: out, cfg: cfg,
height: 0,
hasPreference: false,
}</span>
}
// Tick drives one sampling round across up to MaxBatch pending items.
// Any that reach β are emitted to Sink in input order with their decision.
func (d *Driver[T]) Tick(ctx context.Context) error <span class="cov0" title="0">{
items := d.src.NextPending(ctx, d.cfg.MaxBatch)
if len(items) == 0 </span><span class="cov0" title="0">{
return nil
}</span>
<span class="cov0" title="0">var decided []T
for _, it := range items </span><span class="cov0" title="0">{
d.wv.Tick(ctx, it)
if st, ok := d.wv.State(it); ok &amp;&amp; st.Decided </span><span class="cov0" title="0">{
if st.Result == types.DecideAccept </span><span class="cov0" title="0">{
decided = append(decided, it)
}</span>
}
}
<span class="cov0" title="0">if len(decided) &gt; 0 </span><span class="cov0" title="0">{
if len(decided) &gt; 0 </span><span class="cov0" title="0">{
d.preference = decided[0] // Update preference to latest decided
d.hasPreference = true
d.height++
}</span>
<span class="cov0" title="0">return d.out.Decide(ctx, decided, types.DecideAccept)</span>
}
<span class="cov0" title="0">return nil</span>
}
// Start begins the Ray engine operation
func (d *Driver[T]) Start(ctx context.Context) error <span class="cov0" title="0">{
// Ray engine is stateless and starts immediately
return nil
}</span>
// Stop ends the Ray engine operation
func (d *Driver[T]) Stop(ctx context.Context) error <span class="cov0" title="0">{
// Ray engine is stateless and stops immediately
return nil
}</span>
// Propose proposes an item for consensus (Nova will use this for blocks)
func (d *Driver[T]) Propose(ctx context.Context, item T) error <span class="cov0" title="0">{
// In Ray, proposals are handled through the Source interface
// This is a convenience method for direct proposals
d.wv.Tick(ctx, item)
return nil
}</span>
// GetPreference returns the current preferred item
func (d *Driver[T]) GetPreference() (T, bool) <span class="cov0" title="0">{
return d.preference, d.hasPreference
}</span>
// IsFinalized checks if an item is finalized
func (d *Driver[T]) IsFinalized(item T) bool <span class="cov0" title="0">{
if state, exists := d.wv.State(item); exists </span><span class="cov0" title="0">{
return state.Decided &amp;&amp; state.Result == types.DecideAccept
}</span>
<span class="cov0" title="0">return false</span>
}
// Height returns the current consensus height (for linear chains)
func (d *Driver[T]) Height() uint64 <span class="cov0" title="0">{
return d.height
}</span>
</pre>
<pre class="file" id="file79" style="display: none">package qzmq
import (
"encoding/binary"
"fmt"
"io"
)
// Message types
const (
TypeClientHello uint8 = 0x01
TypeServerHello uint8 = 0x02
TypeClientKey uint8 = 0x03
TypeFinished uint8 = 0x04
TypeData uint8 = 0x05
TypeKeyUpdate uint8 = 0x06
)
// ClientHello initiates the handshake
type ClientHello struct {
Version byte
CipherSuites []byte
X25519Public []byte
Random []byte
}
// Write serializes ClientHello
func (m *ClientHello) Write(w io.Writer) error <span class="cov8" title="1">{
// Type
if err := binary.Write(w, binary.BigEndian, TypeClientHello); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// Version
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, m.Version); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// CipherSuites length and data
<span class="cov8" title="1">csLen := len(m.CipherSuites)
if csLen &gt; 0xFFFF </span><span class="cov0" title="0">{
return fmt.Errorf("cipher suites too long: %d", csLen)
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, uint16(csLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.CipherSuites); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// X25519 public key
<span class="cov8" title="1">if _, err := w.Write(m.X25519Public); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// Random
<span class="cov8" title="1">if _, err := w.Write(m.Random); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
// Read deserializes ClientHello
func (m *ClientHello) Read(r io.Reader) error <span class="cov8" title="1">{
var msgType uint8
if err := binary.Read(r, binary.BigEndian, &amp;msgType); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if msgType != TypeClientHello </span><span class="cov0" title="0">{
return fmt.Errorf("expected ClientHello, got type %d", msgType)
}</span>
<span class="cov8" title="1">if err := binary.Read(r, binary.BigEndian, &amp;m.Version); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">var suitesLen uint16
if err := binary.Read(r, binary.BigEndian, &amp;suitesLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.CipherSuites = make([]byte, suitesLen)
if _, err := io.ReadFull(r, m.CipherSuites); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.X25519Public = make([]byte, X25519KeySize)
if _, err := io.ReadFull(r, m.X25519Public); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.Random = make([]byte, 32)
if _, err := io.ReadFull(r, m.Random); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
// ServerHello responds to ClientHello
type ServerHello struct {
CipherSuite byte
X25519Public []byte
MLKEMPublic []byte
MLDSAPublic []byte
Random []byte
Signature []byte
}
// Write serializes ServerHello
func (m *ServerHello) Write(w io.Writer) error <span class="cov8" title="1">{
if err := binary.Write(w, binary.BigEndian, TypeServerHello); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, m.CipherSuite); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.X25519Public); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.MLKEMPublic); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.MLDSAPublic); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.Random); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// Signature length and data
<span class="cov8" title="1">sigLen := len(m.Signature)
if sigLen &gt; 0xFFFF </span><span class="cov0" title="0">{
return fmt.Errorf("signature too long: %d", sigLen)
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, uint16(sigLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.Signature); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
// Read deserializes ServerHello
func (m *ServerHello) Read(r io.Reader) error <span class="cov8" title="1">{
var msgType uint8
if err := binary.Read(r, binary.BigEndian, &amp;msgType); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if msgType != TypeServerHello </span><span class="cov0" title="0">{
return fmt.Errorf("expected ServerHello, got type %d", msgType)
}</span>
<span class="cov8" title="1">if err := binary.Read(r, binary.BigEndian, &amp;m.CipherSuite); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.X25519Public = make([]byte, X25519KeySize)
if _, err := io.ReadFull(r, m.X25519Public); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.MLKEMPublic = make([]byte, MLKEMKeySize)
if _, err := io.ReadFull(r, m.MLKEMPublic); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.MLDSAPublic = make([]byte, MLDSAKeySize)
if _, err := io.ReadFull(r, m.MLDSAPublic); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.Random = make([]byte, 32)
if _, err := io.ReadFull(r, m.Random); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">var sigLen uint16
if err := binary.Read(r, binary.BigEndian, &amp;sigLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.Signature = make([]byte, sigLen)
if _, err := io.ReadFull(r, m.Signature); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
// ClientKey contains KEM ciphertext
type ClientKey struct {
KEMCiphertext []byte
PSKBinder []byte // Optional for resumption
AuthSignature []byte // Optional for client auth
}
// Write serializes ClientKey
func (m *ClientKey) Write(w io.Writer) error <span class="cov0" title="0">{
if err := binary.Write(w, binary.BigEndian, TypeClientKey); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// KEM ciphertext length and data
<span class="cov0" title="0">kemLen := len(m.KEMCiphertext)
if kemLen &gt; 0xFFFF </span><span class="cov0" title="0">{
return fmt.Errorf("KEM ciphertext too long: %d", kemLen)
}</span>
<span class="cov0" title="0">if err := binary.Write(w, binary.BigEndian, uint16(kemLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if _, err := w.Write(m.KEMCiphertext); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// PSK binder (optional)
<span class="cov0" title="0">pskLen := len(m.PSKBinder)
if pskLen &gt; 0xFFFF </span><span class="cov0" title="0">{
return fmt.Errorf("PSK binder too long: %d", pskLen)
}</span>
<span class="cov0" title="0">if err := binary.Write(w, binary.BigEndian, uint16(pskLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if pskLen &gt; 0 </span><span class="cov0" title="0">{
if _, err := w.Write(m.PSKBinder); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
// Auth signature (optional)
<span class="cov0" title="0">authLen := len(m.AuthSignature)
if authLen &gt; 0xFFFF </span><span class="cov0" title="0">{
return fmt.Errorf("auth signature too long: %d", authLen)
}</span>
<span class="cov0" title="0">if err := binary.Write(w, binary.BigEndian, uint16(authLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if authLen &gt; 0 </span><span class="cov0" title="0">{
if _, err := w.Write(m.AuthSignature); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">return nil</span>
}
// Read deserializes ClientKey
func (m *ClientKey) Read(r io.Reader) error <span class="cov0" title="0">{
var msgType uint8
if err := binary.Read(r, binary.BigEndian, &amp;msgType); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if msgType != TypeClientKey </span><span class="cov0" title="0">{
return fmt.Errorf("expected ClientKey, got type %d", msgType)
}</span>
<span class="cov0" title="0">var kemLen uint16
if err := binary.Read(r, binary.BigEndian, &amp;kemLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">m.KEMCiphertext = make([]byte, kemLen)
if _, err := io.ReadFull(r, m.KEMCiphertext); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">var pskLen uint16
if err := binary.Read(r, binary.BigEndian, &amp;pskLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if pskLen &gt; 0 </span><span class="cov0" title="0">{
m.PSKBinder = make([]byte, pskLen)
if _, err := io.ReadFull(r, m.PSKBinder); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">var authLen uint16
if err := binary.Read(r, binary.BigEndian, &amp;authLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov0" title="0">if authLen &gt; 0 </span><span class="cov0" title="0">{
m.AuthSignature = make([]byte, authLen)
if _, err := io.ReadFull(r, m.AuthSignature); err != nil </span><span class="cov0" title="0">{
return err
}</span>
}
<span class="cov0" title="0">return nil</span>
}
// DataMessage carries encrypted application data
type DataMessage struct {
StreamID uint32
SeqNo uint64
Data []byte // Encrypted data with AEAD tag
}
// Write serializes DataMessage
func (m *DataMessage) Write(w io.Writer) error <span class="cov8" title="1">{
if err := binary.Write(w, binary.BigEndian, TypeData); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, m.StreamID); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, m.SeqNo); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">dataLen := len(m.Data)
if dataLen &gt; 0x7FFFFFFF </span><span class="cov0" title="0">{ // Max int32 to be safe
return fmt.Errorf("data too long: %d", dataLen)
}</span>
<span class="cov8" title="1">if err := binary.Write(w, binary.BigEndian, uint32(dataLen)); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if _, err := w.Write(m.Data); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
// Read deserializes DataMessage
func (m *DataMessage) Read(r io.Reader) error <span class="cov8" title="1">{
var msgType uint8
if err := binary.Read(r, binary.BigEndian, &amp;msgType); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if msgType != TypeData </span><span class="cov0" title="0">{
return fmt.Errorf("expected DataMessage, got type %d", msgType)
}</span>
<span class="cov8" title="1">if err := binary.Read(r, binary.BigEndian, &amp;m.StreamID); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">if err := binary.Read(r, binary.BigEndian, &amp;m.SeqNo); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">var dataLen uint32
if err := binary.Read(r, binary.BigEndian, &amp;dataLen); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">m.Data = make([]byte, dataLen)
if _, err := io.ReadFull(r, m.Data); err != nil </span><span class="cov0" title="0">{
return err
}</span>
<span class="cov8" title="1">return nil</span>
}
</pre>
<pre class="file" id="file80" style="display: none">// Package qzmq provides post-quantum secure transport over ZeroMQ.
// It implements a hybrid classical-quantum key exchange and encryption protocol
// suitable for both consensus messages and general secure communication.
package qzmq
import (
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"crypto/sha256"
"encoding/binary"
"errors"
"fmt"
"io"
"sync"
"time"
// These imports are temporarily commented out due to depguard restrictions
// "golang.org/x/crypto/chacha20poly1305"
// "golang.org/x/crypto/hkdf"
)
const (
// Protocol version
Version byte = 1
// Cipher suites
SuiteAES256GCM = 0x01
SuiteChaCha20Poly1305 = 0x02
// Key sizes
X25519KeySize = 32
MLKEMKeySize = 1184 // ML-KEM-768 public key size
MLDSAKeySize = 1312 // ML-DSA-44 public key size
// Nonce and tag sizes
NonceSize = 12
TagSize = 16
// Key rotation thresholds
MaxMessagesPerKey = 1 &lt;&lt; 32 // 2^32 messages
MaxBytesPerKey = 1 &lt;&lt; 50 // 2^50 bytes
MaxKeyAge = 10 * time.Minute
)
var (
ErrInvalidVersion = errors.New("invalid protocol version")
ErrInvalidCipherSuite = errors.New("invalid cipher suite")
ErrKeyRotationNeeded = errors.New("key rotation needed")
ErrInvalidNonce = errors.New("invalid nonce")
ErrAuthFailed = errors.New("authentication failed")
ErrHandshakeTimeout = errors.New("handshake timeout")
)
// KeyPair represents a hybrid classical-quantum key pair
type KeyPair struct {
X25519Private []byte // Classical ECDH private key
X25519Public []byte // Classical ECDH public key
MLKEMPrivate []byte // ML-KEM private key
MLKEMPublic []byte // ML-KEM public key
MLDSAPrivate []byte // ML-DSA private key for signatures
MLDSAPublic []byte // ML-DSA public key for signatures
}
// GenerateKeyPair generates a new hybrid key pair
func GenerateKeyPair() (*KeyPair, error) <span class="cov8" title="1">{
kp := &amp;KeyPair{
X25519Private: make([]byte, X25519KeySize),
X25519Public: make([]byte, X25519KeySize),
MLKEMPrivate: make([]byte, MLKEMKeySize*2), // Private key is larger
MLKEMPublic: make([]byte, MLKEMKeySize),
MLDSAPrivate: make([]byte, MLDSAKeySize*2), // Private key is larger
MLDSAPublic: make([]byte, MLDSAKeySize),
}
// Generate X25519 keys (placeholder - would use actual X25519)
if _, err := rand.Read(kp.X25519Private); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate X25519 private: %w", err)
}</span>
<span class="cov8" title="1">if _, err := rand.Read(kp.X25519Public); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate X25519 public: %w", err)
}</span>
// Generate ML-KEM keys (placeholder - would use liboqs)
<span class="cov8" title="1">if _, err := rand.Read(kp.MLKEMPrivate); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate ML-KEM private: %w", err)
}</span>
<span class="cov8" title="1">if _, err := rand.Read(kp.MLKEMPublic); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate ML-KEM public: %w", err)
}</span>
// Generate ML-DSA keys (placeholder - would use liboqs)
<span class="cov8" title="1">if _, err := rand.Read(kp.MLDSAPrivate); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate ML-DSA private: %w", err)
}</span>
<span class="cov8" title="1">if _, err := rand.Read(kp.MLDSAPublic); err != nil </span><span class="cov0" title="0">{
return nil, fmt.Errorf("generate ML-DSA public: %w", err)
}</span>
<span class="cov8" title="1">return kp, nil</span>
}
// Session represents a QZMQ secure session
type Session struct {
mu sync.RWMutex
// Configuration
suite byte
isServer bool
// Keys
localKeys *KeyPair
remoteKeys *KeyPair
// Derived keys
sendKey []byte
recvKey []byte
sendNonce uint64
recvNonce uint64
// Key rotation tracking
msgCount uint64
byteCount uint64
keyTime time.Time
// Cipher
sendCipher cipher.AEAD
recvCipher cipher.AEAD
}
// NewSession creates a new QZMQ session
func NewSession(localKeys *KeyPair, isServer bool) (*Session, error) <span class="cov8" title="1">{
return &amp;Session{
suite: SuiteAES256GCM,
isServer: isServer,
localKeys: localKeys,
keyTime: time.Now(),
}, nil
}</span>
// Handshake performs the 1-RTT handshake
func (s *Session) Handshake(transport io.ReadWriter) error <span class="cov0" title="0">{
if s.isServer </span><span class="cov0" title="0">{
return s.serverHandshake(transport)
}</span>
<span class="cov0" title="0">return s.clientHandshake(transport)</span>
}
// clientHandshake performs client side of handshake
func (s *Session) clientHandshake(transport io.ReadWriter) error <span class="cov0" title="0">{
// Send ClientHello
hello := &amp;ClientHello{
Version: Version,
CipherSuites: []byte{SuiteAES256GCM, SuiteChaCha20Poly1305},
X25519Public: s.localKeys.X25519Public,
Random: make([]byte, 32),
}
if _, err := rand.Read(hello.Random); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("generate random: %w", err)
}</span>
<span class="cov0" title="0">if err := hello.Write(transport); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("write ClientHello: %w", err)
}</span>
// Receive ServerHello
<span class="cov0" title="0">serverHello := &amp;ServerHello{}
if err := serverHello.Read(transport); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("read ServerHello: %w", err)
}</span>
// Verify signature (placeholder - would use ML-DSA)
<span class="cov0" title="0">s.suite = serverHello.CipherSuite
s.remoteKeys = &amp;KeyPair{
X25519Public: serverHello.X25519Public,
MLKEMPublic: serverHello.MLKEMPublic,
MLDSAPublic: serverHello.MLDSAPublic,
}
// Compute shared secrets and derive keys
if err := s.deriveKeys(hello.Random, serverHello.Random); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("derive keys: %w", err)
}</span>
// Send ClientKey with KEM ciphertext
<span class="cov0" title="0">clientKey := &amp;ClientKey{
KEMCiphertext: make([]byte, 1088), // ML-KEM-768 ciphertext size
}
if _, err := rand.Read(clientKey.KEMCiphertext); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("generate KEM ciphertext: %w", err)
}</span>
<span class="cov0" title="0">return clientKey.Write(transport)</span>
}
// serverHandshake performs server side of handshake
func (s *Session) serverHandshake(transport io.ReadWriter) error <span class="cov0" title="0">{
// Receive ClientHello
hello := &amp;ClientHello{}
if err := hello.Read(transport); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("read ClientHello: %w", err)
}</span>
<span class="cov0" title="0">if hello.Version != Version </span><span class="cov0" title="0">{
return ErrInvalidVersion
}</span>
// Select cipher suite
<span class="cov0" title="0">s.suite = selectCipherSuite(hello.CipherSuites)
if s.suite == 0 </span><span class="cov0" title="0">{
return ErrInvalidCipherSuite
}</span>
// Send ServerHello
<span class="cov0" title="0">serverHello := &amp;ServerHello{
CipherSuite: s.suite,
X25519Public: s.localKeys.X25519Public,
MLKEMPublic: s.localKeys.MLKEMPublic,
MLDSAPublic: s.localKeys.MLDSAPublic,
Random: make([]byte, 32),
Signature: make([]byte, 2420), // ML-DSA-44 signature size
}
if _, err := rand.Read(serverHello.Random); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("generate random: %w", err)
}</span>
<span class="cov0" title="0">if _, err := rand.Read(serverHello.Signature); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("generate signature: %w", err)
}</span>
<span class="cov0" title="0">if err := serverHello.Write(transport); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("write ServerHello: %w", err)
}</span>
// Receive ClientKey
<span class="cov0" title="0">clientKey := &amp;ClientKey{}
if err := clientKey.Read(transport); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("read ClientKey: %w", err)
}</span>
// Derive keys
<span class="cov0" title="0">s.remoteKeys = &amp;KeyPair{
X25519Public: hello.X25519Public,
}
return s.deriveKeys(hello.Random, serverHello.Random)</span>
}
// deriveKeys derives session keys from shared secrets
func (s *Session) deriveKeys(clientRandom, serverRandom []byte) error <span class="cov0" title="0">{
// Placeholder for key derivation
// In real implementation would:
// 1. Perform X25519 ECDH
// 2. Perform ML-KEM decapsulation
// 3. Combine secrets with HKDF
secret := make([]byte, 64)
if _, err := rand.Read(secret); err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("generate secret: %w", err)
}</span>
// Simple key derivation using SHA256 (placeholder for HKDF)
<span class="cov0" title="0">salt := append(clientRandom, serverRandom...)
h := sha256.New()
h.Write(secret)
h.Write(salt)
h.Write([]byte("QZMQ-v1"))
derived := h.Sum(nil)
s.sendKey = make([]byte, 32)
s.recvKey = make([]byte, 32)
if s.isServer </span><span class="cov0" title="0">{
copy(s.recvKey, derived[:32])
h.Reset()
h.Write(derived)
copy(s.sendKey, h.Sum(nil)[:32])
}</span> else<span class="cov0" title="0"> {
copy(s.sendKey, derived[:32])
h.Reset()
h.Write(derived)
copy(s.recvKey, h.Sum(nil)[:32])
}</span>
<span class="cov0" title="0">return s.initCiphers()</span>
}
// initCiphers initializes the ciphers from existing keys
func (s *Session) initCiphers() error <span class="cov8" title="1">{
var err error
switch s.suite </span>{
case SuiteAES256GCM, SuiteChaCha20Poly1305:<span class="cov8" title="1">
// For now, use AES-GCM for both suites due to import restrictions
block, _ := aes.NewCipher(s.sendKey)
s.sendCipher, err = cipher.NewGCM(block)
if err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("create send cipher: %w", err)
}</span>
<span class="cov8" title="1">block, _ = aes.NewCipher(s.recvKey)
s.recvCipher, err = cipher.NewGCM(block)
if err != nil </span><span class="cov0" title="0">{
return fmt.Errorf("create recv cipher: %w", err)
}</span>
default:<span class="cov0" title="0">
return ErrInvalidCipherSuite</span>
}
<span class="cov8" title="1">return nil</span>
}
// Encrypt encrypts a message
func (s *Session) Encrypt(plaintext []byte) ([]byte, error) <span class="cov8" title="1">{
s.mu.Lock()
defer s.mu.Unlock()
// Check if key rotation is needed
if s.needsRotation() </span><span class="cov0" title="0">{
return nil, ErrKeyRotationNeeded
}</span>
// Generate nonce
<span class="cov8" title="1">nonce := make([]byte, NonceSize)
binary.BigEndian.PutUint64(nonce[4:], s.sendNonce)
s.sendNonce++
// Encrypt
ciphertext := s.sendCipher.Seal(nil, nonce, plaintext, nil)
// Update counters
s.msgCount++
s.byteCount += uint64(len(plaintext))
// Prepend nonce
return append(nonce, ciphertext...), nil</span>
}
// Decrypt decrypts a message
func (s *Session) Decrypt(ciphertext []byte) ([]byte, error) <span class="cov8" title="1">{
s.mu.Lock()
defer s.mu.Unlock()
if len(ciphertext) &lt; NonceSize </span><span class="cov0" title="0">{
return nil, ErrInvalidNonce
}</span>
<span class="cov8" title="1">nonce := ciphertext[:NonceSize]
ct := ciphertext[NonceSize:]
// Verify nonce sequence
expectedNonce := make([]byte, NonceSize)
binary.BigEndian.PutUint64(expectedNonce[4:], s.recvNonce)
s.recvNonce++
// Decrypt
plaintext, err := s.recvCipher.Open(nil, nonce, ct, nil)
if err != nil </span><span class="cov0" title="0">{
return nil, ErrAuthFailed
}</span>
<span class="cov8" title="1">return plaintext, nil</span>
}
// needsRotation checks if key rotation is needed
func (s *Session) needsRotation() bool <span class="cov8" title="1">{
return s.msgCount &gt;= MaxMessagesPerKey ||
s.byteCount &gt;= MaxBytesPerKey ||
time.Since(s.keyTime) &gt;= MaxKeyAge
}</span>
// RotateKeys performs key ratcheting
func (s *Session) RotateKeys() error <span class="cov8" title="1">{
s.mu.Lock()
defer s.mu.Unlock()
// Ratchet keys using SHA256 (placeholder for HKDF)
h := sha256.New()
h.Write(s.sendKey)
h.Write([]byte("ratchet"))
newSendKey := h.Sum(nil)[:32]
h.Reset()
h.Write(s.recvKey)
h.Write([]byte("ratchet"))
newRecvKey := h.Sum(nil)[:32]
s.sendKey = make([]byte, 32)
s.recvKey = make([]byte, 32)
copy(s.sendKey, newSendKey)
copy(s.recvKey, newRecvKey)
// Reinitialize ciphers using the helper method
if err := s.initCiphers(); err != nil </span><span class="cov0" title="0">{
return err
}</span>
// Reset counters
<span class="cov8" title="1">s.msgCount = 0
s.byteCount = 0
s.keyTime = time.Now()
s.sendNonce = 0
s.recvNonce = 0
return nil</span>
}
// selectCipherSuite selects the best supported cipher suite
func selectCipherSuite(suites []byte) byte <span class="cov8" title="1">{
for _, suite := range suites </span><span class="cov8" title="1">{
if suite == SuiteAES256GCM || suite == SuiteChaCha20Poly1305 </span><span class="cov8" title="1">{
return suite
}</span>
}
<span class="cov8" title="1">return 0</span>
}
</pre>
<pre class="file" id="file81" style="display: none">package snowman
import (
"context"
"github.com/luxfi/consensus/utils/bag"
"github.com/luxfi/ids"
)
// Bag is an alias for bag.Bag
type Bag = bag.Bag
// Consensus implements Snowman consensus
type Consensus interface {
// Initialize initializes consensus
Initialize(context.Context, *Config) error
// Add adds a block to consensus
Add(context.Context, Block) error
// RecordPoll records poll results
RecordPoll(context.Context, *Bag) error
// Finalized checks if finalized
Finalized() bool
// Parameters returns consensus parameters
Parameters() Parameters
// Preference returns the preferred block
Preference() ids.ID
// HealthCheck performs health check
HealthCheck(context.Context) (interface{}, error)
}
// Block represents a Snowman block
type Block interface {
ID() ids.ID
ParentID() ids.ID
Height() uint64
Verify(context.Context) error
Accept(context.Context) error
Reject(context.Context) error
Bytes() []byte
}
// Config defines Snowman configuration
type Config struct {
Beta int
ConcurrentRepolls int
OptimalProcessing int
}
// Parameters defines consensus parameters
type Parameters struct {
K int
Alpha int
BetaVirtuous int
BetaRogue int
ConcurrentRepolls int
OptimalProcessing int
}
// Topological provides topological Snowman consensus
type Topological struct {
config *Config
preference ids.ID
finalized bool
}
// NewTopological creates a new topological Snowman instance
func NewTopological(config *Config) *Topological <span class="cov0" title="0">{
return &amp;Topological{
config: config,
finalized: false,
}
}</span>
// Initialize initializes consensus
func (t *Topological) Initialize(ctx context.Context, config *Config) error <span class="cov0" title="0">{
t.config = config
return nil
}</span>
// Add adds a block to consensus
func (t *Topological) Add(ctx context.Context, block Block) error <span class="cov0" title="0">{
if t.preference == (ids.ID{}) </span><span class="cov0" title="0">{
t.preference = block.ID()
}</span>
<span class="cov0" title="0">return nil</span>
}
// RecordPoll records poll results
func (t *Topological) RecordPoll(ctx context.Context, votes *Bag) error <span class="cov0" title="0">{
return nil
}</span>
// Finalized checks if finalized
func (t *Topological) Finalized() bool <span class="cov0" title="0">{
return t.finalized
}</span>
// Parameters returns consensus parameters
func (t *Topological) Parameters() Parameters <span class="cov0" title="0">{
return Parameters{
K: 1,
Alpha: 1,
BetaVirtuous: t.config.Beta,
BetaRogue: t.config.Beta,
ConcurrentRepolls: t.config.ConcurrentRepolls,
OptimalProcessing: t.config.OptimalProcessing,
}
}</span>
// Preference returns the preferred block
func (t *Topological) Preference() ids.ID <span class="cov0" title="0">{
return t.preference
}</span>
// HealthCheck performs health check
func (t *Topological) HealthCheck(ctx context.Context) (interface{}, error) <span class="cov0" title="0">{
return map[string]interface{}{
"finalized": t.finalized,
"preference": t.preference.String(),
}, nil
}</span>
</pre>
<pre class="file" id="file82" style="display: none">// Copyright (C) 2019-2024, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package uptime
// LockedCalculator is a wrapper for a Calculator that ensures thread-safety
type LockedCalculator interface {
Calculator
}
// NewLockedCalculator returns a new LockedCalculator
func NewLockedCalculator() LockedCalculator <span class="cov0" title="0">{
return &amp;lockedCalculator{}
}</span>
type lockedCalculator struct {
NoOpCalculator
}
</pre>
<pre class="file" id="file83" style="display: none">// Package uptime provides uptime calculation functionality
package uptime
import (
"time"
"github.com/luxfi/ids"
)
// Calculator calculates uptime
type Calculator interface {
CalculateUptime(nodeID ids.NodeID, subnetID ids.ID) (time.Duration, time.Duration, error)
CalculateUptimePercent(nodeID ids.NodeID, subnetID ids.ID) (float64, error)
CalculateUptimePercentFrom(nodeID ids.NodeID, subnetID ids.ID, from time.Time) (float64, error)
SetCalculator(subnetID ids.ID, calc Calculator) error
}
// NoOpCalculator is a no-op implementation of Calculator
type NoOpCalculator struct{}
// CalculateUptime always returns 100% uptime
func (NoOpCalculator) CalculateUptime(ids.NodeID, ids.ID) (time.Duration, time.Duration, error) <span class="cov0" title="0">{
return 0, 0, nil
}</span>
// CalculateUptimePercent always returns 100% uptime
func (NoOpCalculator) CalculateUptimePercent(ids.NodeID, ids.ID) (float64, error) <span class="cov0" title="0">{
return 1.0, nil
}</span>
// CalculateUptimePercentFrom always returns 100% uptime
func (NoOpCalculator) CalculateUptimePercentFrom(ids.NodeID, ids.ID, time.Time) (float64, error) <span class="cov0" title="0">{
return 1.0, nil
}</span>
// SetCalculator is a no-op
func (NoOpCalculator) SetCalculator(ids.ID, Calculator) error <span class="cov0" title="0">{
return nil
}</span>
</pre>
<pre class="file" id="file84" style="display: none">// Package uptimemock provides mock implementations for uptime tracking
package uptimemock
import (
"time"
"github.com/luxfi/consensus/types"
)
// MockUptimeTracker provides a mock implementation for uptime tracking
type MockUptimeTracker struct {
uptimes map[types.NodeID]time.Duration
starts map[types.NodeID]time.Time
}
// NewMockUptimeTracker creates a new mock uptime tracker
func NewMockUptimeTracker() *MockUptimeTracker <span class="cov0" title="0">{
return &amp;MockUptimeTracker{
uptimes: make(map[types.NodeID]time.Duration),
starts: make(map[types.NodeID]time.Time),
}
}</span>
// StartTracking starts tracking uptime for a node
func (m *MockUptimeTracker) StartTracking(nodeID types.NodeID) <span class="cov0" title="0">{
m.starts[nodeID] = time.Now()
}</span>
// StopTracking stops tracking uptime for a node
func (m *MockUptimeTracker) StopTracking(nodeID types.NodeID) <span class="cov0" title="0">{
if start, exists := m.starts[nodeID]; exists </span><span class="cov0" title="0">{
duration := time.Since(start)
m.uptimes[nodeID] += duration
delete(m.starts, nodeID)
}</span>
}
// GetUptime returns the total uptime for a node
func (m *MockUptimeTracker) GetUptime(nodeID types.NodeID) time.Duration <span class="cov0" title="0">{
uptime := m.uptimes[nodeID]
if start, exists := m.starts[nodeID]; exists </span><span class="cov0" title="0">{
uptime += time.Since(start)
}</span>
<span class="cov0" title="0">return uptime</span>
}
// IsTracking returns whether a node is currently being tracked
func (m *MockUptimeTracker) IsTracking(nodeID types.NodeID) bool <span class="cov0" title="0">{
_, exists := m.starts[nodeID]
return exists
}</span>
</pre>
<pre class="file" id="file85" style="display: none">package bag
import "github.com/luxfi/ids"
// Bag is a collection of IDs with counts
type Bag struct {
counts map[ids.ID]int
}
// New creates a new bag
func New() *Bag <span class="cov0" title="0">{
return &amp;Bag{
counts: make(map[ids.ID]int),
}
}</span>
// Add adds an ID to the bag
func (b *Bag) Add(id ids.ID) <span class="cov0" title="0">{
b.counts[id]++
}</span>
// Count returns the count for an ID
func (b *Bag) Count(id ids.ID) int <span class="cov0" title="0">{
return b.counts[id]
}</span>
// Len returns the number of unique IDs
func (b *Bag) Len() int <span class="cov0" title="0">{
return len(b.counts)
}</span>
// List returns all IDs in the bag
func (b *Bag) List() []ids.ID <span class="cov0" title="0">{
list := make([]ids.ID, 0, len(b.counts))
for id := range b.counts </span><span class="cov0" title="0">{
list = append(list, id)
}</span>
<span class="cov0" title="0">return list</span>
}
</pre>
<pre class="file" id="file86" style="display: none">package set
import "github.com/luxfi/math/set"
// Re-export set types from math package
type Set[T comparable] = set.Set[T]
// Of creates a new set
func Of[T comparable](elements ...T) Set[T] <span class="cov0" title="0">{
return set.Of(elements...)
}</span>
// NewSet creates a new empty set
func NewSet[T comparable](size int) Set[T] <span class="cov0" title="0">{
return make(Set[T], size)
}</span>
</pre>
<pre class="file" id="file87" style="display: none">package mockable
import "time"
// Clock is a mockable clock
type Clock struct {
time time.Time
mocked bool
}
// NewClock creates a new clock
func NewClock() *Clock <span class="cov0" title="0">{
return &amp;Clock{
time: time.Now(),
}
}</span>
// Now returns current time
func (c *Clock) Now() time.Time <span class="cov0" title="0">{
if c.mocked </span><span class="cov0" title="0">{
return c.time
}</span>
<span class="cov0" title="0">return time.Now()</span>
}
// Set sets the clock time
func (c *Clock) Set(t time.Time) <span class="cov0" title="0">{
c.time = t
c.mocked = true
}</span>
// Advance advances the clock
func (c *Clock) Advance(d time.Duration) <span class="cov0" title="0">{
c.time = c.time.Add(d)
}</span>
// Real returns to real time
func (c *Clock) Real() <span class="cov0" title="0">{
c.mocked = false
}</span>
</pre>
<pre class="file" id="file88" style="display: none">package utils
import (
"sort"
)
// Sort sorts a slice
func Sort[T any](slice []T, less func(i, j int) bool) <span class="cov0" title="0">{
sort.Slice(slice, less)
}</span>
// SortByID sorts by ID
func SortByID[T interface{ ID() string }](slice []T) <span class="cov0" title="0">{
sort.Slice(slice, func(i, j int) bool </span><span class="cov0" title="0">{
return slice[i].ID() &lt; slice[j].ID()
}</span>)
}
// Contains checks if slice contains element
func Contains[T comparable](slice []T, elem T) bool <span class="cov0" title="0">{
for _, v := range slice </span><span class="cov0" title="0">{
if v == elem </span><span class="cov0" title="0">{
return true
}</span>
}
<span class="cov0" title="0">return false</span>
}
// Filter filters a slice
func Filter[T any](slice []T, predicate func(T) bool) []T <span class="cov0" title="0">{
result := make([]T, 0, len(slice))
for _, v := range slice </span><span class="cov0" title="0">{
if predicate(v) </span><span class="cov0" title="0">{
result = append(result, v)
}</span>
}
<span class="cov0" title="0">return result</span>
}
</pre>
<pre class="file" id="file89" style="display: none">package validators
import (
"github.com/luxfi/ids"
)
// NewManager creates a new validator manager
func NewManager() *manager <span class="cov0" title="0">{
return &amp;manager{
validators: make(map[ids.ID]map[ids.NodeID]*GetValidatorOutput),
}
}</span>
type manager struct {
validators map[ids.ID]map[ids.NodeID]*GetValidatorOutput
}
// AddStaker adds a validator to the set
func (m *manager) AddStaker(netID ids.ID, nodeID ids.NodeID, publicKey []byte, txID ids.ID, light uint64) error <span class="cov0" title="0">{
if m.validators[netID] == nil </span><span class="cov0" title="0">{
m.validators[netID] = make(map[ids.NodeID]*GetValidatorOutput)
}</span>
<span class="cov0" title="0">m.validators[netID][nodeID] = &amp;GetValidatorOutput{
NodeID: nodeID,
PublicKey: publicKey,
Light: light,
Weight: light,
TxID: txID,
}
return nil</span>
}
func (m *manager) GetValidators(netID ids.ID) (Set, error) <span class="cov0" title="0">{
if validators, ok := m.validators[netID]; ok </span><span class="cov0" title="0">{
return &amp;validatorSet{validators: validators}, nil
}</span>
<span class="cov0" title="0">return &amp;emptySet{}, nil</span>
}
func (m *manager) GetValidator(netID ids.ID, nodeID ids.NodeID) (*GetValidatorOutput, bool) <span class="cov0" title="0">{
if validators, ok := m.validators[netID]; ok </span><span class="cov0" title="0">{
if val, exists := validators[nodeID]; exists </span><span class="cov0" title="0">{
return val, true
}</span>
}
<span class="cov0" title="0">return nil, false</span>
}
func (m *manager) GetLight(netID ids.ID, nodeID ids.NodeID) uint64 <span class="cov0" title="0">{
if val, ok := m.GetValidator(netID, nodeID); ok </span><span class="cov0" title="0">{
return val.Light
}</span>
<span class="cov0" title="0">return 0</span>
}
func (m *manager) GetWeight(netID ids.ID, nodeID ids.NodeID) uint64 <span class="cov0" title="0">{
return m.GetLight(netID, nodeID)
}</span>
func (m *manager) TotalLight(netID ids.ID) (uint64, error) <span class="cov0" title="0">{
set, err := m.GetValidators(netID)
if err != nil </span><span class="cov0" title="0">{
return 0, err
}</span>
<span class="cov0" title="0">return set.Light(), nil</span>
}
func (m *manager) TotalWeight(netID ids.ID) (uint64, error) <span class="cov0" title="0">{
return m.TotalLight(netID)
}</span>
// validatorSet represents a validator set
type validatorSet struct {
validators map[ids.NodeID]*GetValidatorOutput
}
func (s *validatorSet) Has(nodeID ids.NodeID) bool <span class="cov0" title="0">{
_, ok := s.validators[nodeID]
return ok
}</span>
func (s *validatorSet) Len() int <span class="cov0" title="0">{
return len(s.validators)
}</span>
func (s *validatorSet) List() []Validator <span class="cov0" title="0">{
vals := make([]Validator, 0, len(s.validators))
for _, v := range s.validators </span><span class="cov0" title="0">{
vals = append(vals, &amp;ValidatorImpl{
NodeID: v.NodeID,
LightVal: v.Light,
})
}</span>
<span class="cov0" title="0">return vals</span>
}
func (s *validatorSet) Light() uint64 <span class="cov0" title="0">{
var total uint64
for _, v := range s.validators </span><span class="cov0" title="0">{
total += v.Light
}</span>
<span class="cov0" title="0">return total</span>
}
func (s *validatorSet) Sample(size int) ([]ids.NodeID, error) <span class="cov0" title="0">{
nodeIDs := make([]ids.NodeID, 0, size)
for nodeID := range s.validators </span><span class="cov0" title="0">{
if len(nodeIDs) &gt;= size </span><span class="cov0" title="0">{
break</span>
}
<span class="cov0" title="0">nodeIDs = append(nodeIDs, nodeID)</span>
}
<span class="cov0" title="0">return nodeIDs, nil</span>
}
// emptySet represents an empty validator set
type emptySet struct{}
func (s *emptySet) Has(ids.NodeID) bool <span class="cov0" title="0">{ return false }</span>
func (s *emptySet) Len() int <span class="cov0" title="0">{ return 0 }</span>
func (s *emptySet) List() []Validator <span class="cov0" title="0">{ return nil }</span>
func (s *emptySet) Light() uint64 <span class="cov0" title="0">{ return 0 }</span>
func (s *emptySet) Sample(size int) ([]ids.NodeID, error) <span class="cov0" title="0">{
return nil, nil
}</span>
</pre>
<pre class="file" id="file90" style="display: none">package validators
import (
"context"
"github.com/luxfi/consensus/version"
"github.com/luxfi/ids"
)
// State provides validator state management
type State interface {
GetValidatorSet(ctx context.Context, height uint64, netID ids.ID) (map[ids.NodeID]*GetValidatorOutput, error)
GetCurrentValidators(ctx context.Context, height uint64, netID ids.ID) (map[ids.NodeID]*GetValidatorOutput, error)
GetCurrentHeight(ctx context.Context) (uint64, error)
}
// GetValidatorOutput provides validator information
type GetValidatorOutput struct {
NodeID ids.NodeID
PublicKey []byte
Light uint64
Weight uint64 // Alias for Light for backward compatibility
TxID ids.ID // Transaction ID that added this validator
}
// Set represents a set of validators
type Set interface {
Has(ids.NodeID) bool
Len() int
List() []Validator
Light() uint64
Sample(size int) ([]ids.NodeID, error)
}
// Validator represents a validator
type Validator interface {
ID() ids.NodeID
Light() uint64
}
// ValidatorImpl is a concrete implementation of Validator
type ValidatorImpl struct {
NodeID ids.NodeID
LightVal uint64
}
// ID returns the node ID
func (v *ValidatorImpl) ID() ids.NodeID <span class="cov0" title="0">{
return v.NodeID
}</span>
// Light returns the validator light
func (v *ValidatorImpl) Light() uint64 <span class="cov0" title="0">{
return v.LightVal
}</span>
// Manager manages validator sets
type Manager interface {
GetValidators(netID ids.ID) (Set, error)
GetValidator(netID ids.ID, nodeID ids.NodeID) (*GetValidatorOutput, bool)
GetLight(netID ids.ID, nodeID ids.NodeID) uint64
GetWeight(netID ids.ID, nodeID ids.NodeID) uint64 // Deprecated: use GetLight
TotalLight(netID ids.ID) (uint64, error)
TotalWeight(netID ids.ID) (uint64, error) // Deprecated: use TotalLight
}
// SetCallbackListener listens to validator set changes
type SetCallbackListener interface {
OnValidatorAdded(nodeID ids.NodeID, light uint64)
OnValidatorRemoved(nodeID ids.NodeID, light uint64)
OnValidatorLightChanged(nodeID ids.NodeID, oldLight, newLight uint64)
}
// ManagerCallbackListener listens to manager changes
type ManagerCallbackListener interface {
OnValidatorAdded(netID ids.ID, nodeID ids.NodeID, light uint64)
OnValidatorRemoved(netID ids.ID, nodeID ids.NodeID, light uint64)
OnValidatorLightChanged(netID ids.ID, nodeID ids.NodeID, oldLight, newLight uint64)
}
// Connector handles validator connections
type Connector interface {
Connected(ctx context.Context, nodeID ids.NodeID, nodeVersion *version.Application) error
Disconnected(ctx context.Context, nodeID ids.NodeID) error
}
</pre>
<pre class="file" id="file91" style="display: none">// Package validatorsmock provides mock implementations for validator management
package validatorsmock
import (
"context"
"testing"
"github.com/luxfi/ids"
)
// MockValidatorSet provides a mock implementation for validator sets
type MockValidatorSet struct {
validators []Validator
weights map[ids.NodeID]uint64
}
// Validator represents a validator
type Validator struct {
ID ids.NodeID
Weight uint64
}
// NewMockValidatorSet creates a new mock validator set
func NewMockValidatorSet() *MockValidatorSet <span class="cov0" title="0">{
return &amp;MockValidatorSet{
validators: make([]Validator, 0),
weights: make(map[ids.NodeID]uint64),
}
}</span>
// AddValidator adds a validator to the set
func (m *MockValidatorSet) AddValidator(nodeID ids.NodeID, weight uint64) <span class="cov0" title="0">{
m.validators = append(m.validators, Validator{
ID: nodeID,
Weight: weight,
})
m.weights[nodeID] = weight
}</span>
// GetValidators returns all validators
func (m *MockValidatorSet) GetValidators(ctx context.Context) []Validator <span class="cov0" title="0">{
return m.validators
}</span>
// GetWeight returns the weight of a validator
func (m *MockValidatorSet) GetWeight(nodeID ids.NodeID) uint64 <span class="cov0" title="0">{
return m.weights[nodeID]
}</span>
// Contains checks if a node is a validator
func (m *MockValidatorSet) Contains(nodeID ids.NodeID) bool <span class="cov0" title="0">{
_, exists := m.weights[nodeID]
return exists
}</span>
// Size returns the number of validators
func (m *MockValidatorSet) Size() int <span class="cov0" title="0">{
return len(m.validators)
}</span>
// State provides a mock implementation for validator state
type State struct {
T *testing.T
currentHeight uint64
minimumHeight uint64
validators map[uint64][]Validator
chainID ids.ID
// Function fields that can be overridden
GetNetIDF func(context.Context, ids.ID) (ids.ID, error)
GetCurrentHeightF func(context.Context) (uint64, error)
GetMinimumHeightF func(context.Context) (uint64, error)
GetValidatorSetF func(context.Context, uint64, ids.ID) ([]Validator, error)
GetChainIDF func(ids.ID) (ids.ID, error)
}
// NewState creates a new mock validator state
func NewState(t *testing.T) *State <span class="cov0" title="0">{
return &amp;State{
T: t,
currentHeight: 0,
minimumHeight: 0,
validators: make(map[uint64][]Validator),
chainID: ids.Empty,
}
}</span>
// GetCurrentHeight returns the current height
func (s *State) GetCurrentHeight(ctx context.Context) (uint64, error) <span class="cov0" title="0">{
if s.GetCurrentHeightF != nil </span><span class="cov0" title="0">{
return s.GetCurrentHeightF(ctx)
}</span>
<span class="cov0" title="0">return s.currentHeight, nil</span>
}
// GetMinimumHeight returns the minimum height
func (s *State) GetMinimumHeight(ctx context.Context) (uint64, error) <span class="cov0" title="0">{
if s.GetMinimumHeightF != nil </span><span class="cov0" title="0">{
return s.GetMinimumHeightF(ctx)
}</span>
<span class="cov0" title="0">return s.minimumHeight, nil</span>
}
// GetValidatorSet returns the validator set at a given height and subnet
func (s *State) GetValidatorSet(ctx context.Context, height uint64, subnetID ids.ID) ([]Validator, error) <span class="cov0" title="0">{
if s.GetValidatorSetF != nil </span><span class="cov0" title="0">{
return s.GetValidatorSetF(ctx, height, subnetID)
}</span>
<span class="cov0" title="0">if validators, ok := s.validators[height]; ok </span><span class="cov0" title="0">{
return validators, nil
}</span>
<span class="cov0" title="0">return []Validator{}, nil</span>
}
// GetChainID returns the chain ID for a given chain
func (s *State) GetChainID(chainID ids.ID) (ids.ID, error) <span class="cov0" title="0">{
if s.GetChainIDF != nil </span><span class="cov0" title="0">{
return s.GetChainIDF(chainID)
}</span>
<span class="cov0" title="0">return s.chainID, nil</span>
}
// SetHeight sets the current height
func (s *State) SetHeight(height uint64) <span class="cov0" title="0">{
s.currentHeight = height
}</span>
// SetMinimumHeight sets the minimum height
func (s *State) SetMinimumHeight(height uint64) <span class="cov0" title="0">{
s.minimumHeight = height
}</span>
// SetValidatorSet sets the validator set at a given height
func (s *State) SetValidatorSet(height uint64, validators []Validator) <span class="cov0" title="0">{
s.validators[height] = validators
}</span>
// SetChainID sets the chain ID
func (s *State) SetChainID(chainID ids.ID) <span class="cov0" title="0">{
s.chainID = chainID
}</span>
// GetNetID returns the network ID for a given chain
func (s *State) GetNetID(ctx context.Context, chainID ids.ID) (ids.ID, error) <span class="cov0" title="0">{
if s.GetNetIDF != nil </span><span class="cov0" title="0">{
return s.GetNetIDF(ctx, chainID)
}</span>
// Simple mock: return a fixed network ID
<span class="cov0" title="0">return ids.GenerateTestID(), nil</span>
}
</pre>
<pre class="file" id="file92" style="display: none">package validatorstest
import (
"context"
"github.com/luxfi/consensus/validators"
"github.com/luxfi/ids"
)
// State is an alias for TestState for backward compatibility
type State = TestState
// TestState is a test implementation of validators.State
type TestState struct {
validators map[ids.ID]validators.Set
// Function fields for test customization
GetCurrentHeightF func(context.Context) (uint64, error)
GetValidatorSetF func(context.Context, uint64, ids.ID) (map[ids.NodeID]*validators.GetValidatorOutput, error)
}
// NewTestState creates a new test state
func NewTestState() *TestState <span class="cov0" title="0">{
return &amp;TestState{
validators: make(map[ids.ID]validators.Set),
}
}</span>
// GetCurrentValidators returns current validators
func (s *TestState) GetCurrentValidators(ctx context.Context, height uint64, netID ids.ID) (map[ids.NodeID]*validators.GetValidatorOutput, error) <span class="cov0" title="0">{
return s.GetValidatorSet(ctx, height, netID)
}</span>
// GetValidatorSet returns a validator set
func (s *TestState) GetValidatorSet(ctx context.Context, height uint64, netID ids.ID) (map[ids.NodeID]*validators.GetValidatorOutput, error) <span class="cov0" title="0">{
if s.GetValidatorSetF != nil </span><span class="cov0" title="0">{
return s.GetValidatorSetF(ctx, height, netID)
}</span>
<span class="cov0" title="0">return make(map[ids.NodeID]*validators.GetValidatorOutput), nil</span>
}
// GetCurrentHeight returns the current height
func (s *TestState) GetCurrentHeight(ctx context.Context) (uint64, error) <span class="cov0" title="0">{
if s.GetCurrentHeightF != nil </span><span class="cov0" title="0">{
return s.GetCurrentHeightF(ctx)
}</span>
<span class="cov0" title="0">return 0, nil</span>
}
</pre>
<pre class="file" id="file93" style="display: none">// Package version provides version information
package version
import "fmt"
// Application represents an application version
type Application struct {
Major int
Minor int
Patch int
// Additional metadata
Name string
}
// String returns the version string
func (v *Application) String() string <span class="cov0" title="0">{
return fmt.Sprintf("%s-%d.%d.%d", v.Name, v.Major, v.Minor, v.Patch)
}</span>
// Compatible returns whether versions are compatible
func (v *Application) Compatible(other *Application) bool <span class="cov0" title="0">{
// Major version must match
return v.Major == other.Major
}</span>
// Compare compares two versions
// Returns -1 if v &lt; other, 0 if v == other, 1 if v &gt; other
func (v *Application) Compare(other *Application) int <span class="cov0" title="0">{
if v.Major &lt; other.Major </span><span class="cov0" title="0">{
return -1
}</span>
<span class="cov0" title="0">if v.Major &gt; other.Major </span><span class="cov0" title="0">{
return 1
}</span>
<span class="cov0" title="0">if v.Minor &lt; other.Minor </span><span class="cov0" title="0">{
return -1
}</span>
<span class="cov0" title="0">if v.Minor &gt; other.Minor </span><span class="cov0" title="0">{
return 1
}</span>
<span class="cov0" title="0">if v.Patch &lt; other.Patch </span><span class="cov0" title="0">{
return -1
}</span>
<span class="cov0" title="0">if v.Patch &gt; other.Patch </span><span class="cov0" title="0">{
return 1
}</span>
<span class="cov0" title="0">return 0</span>
}
// Current returns the current version
func Current() *Application <span class="cov0" title="0">{
return &amp;Application{
Major: 1,
Minor: 0,
Patch: 0,
Name: "lux",
}
}</span>
</pre>
<pre class="file" id="file94" style="display: none">package wave
// State represents the consensus state for an item
type State[ID comparable] struct {
// The item ID
ID ID
// Confidence score
Confidence int
// Whether the item is finalized
Finalized bool
// Parent IDs
Parents []ID
// Height in the consensus graph
Height uint64
}
// NewState creates a new consensus state
func NewState[ID comparable](id ID) State[ID] <span class="cov0" title="0">{
return State[ID]{
ID: id,
Confidence: 0,
Finalized: false,
Parents: []ID{},
Height: 0,
}
}</span>
// IsPreferred returns whether this state is preferred
func (s State[ID]) IsPreferred() bool <span class="cov0" title="0">{
return s.Confidence &gt; 0
}</span>
// IncrementConfidence increments the confidence score
func (s *State[ID]) IncrementConfidence() <span class="cov0" title="0">{
s.Confidence++
}</span>
// Finalize marks the state as finalized
func (s *State[ID]) Finalize() <span class="cov0" title="0">{
s.Finalized = true
}</span>
</pre>
<pre class="file" id="file95" style="display: none">package wave
import (
"context"
"time"
"github.com/luxfi/consensus/prism"
"github.com/luxfi/consensus/types"
)
// Photon represents a vote message in the consensus protocol
type Photon[T comparable] struct {
Item T
Prefer bool
Sender types.NodeID
Timestamp time.Time
}
// Transport handles network communication for voting
type Transport[T comparable] interface {
RequestVotes(ctx context.Context, peers []types.NodeID, item T) &lt;-chan Photon[T]
MakeLocalPhoton(item T, prefer bool) Photon[T]
}
// Config holds configuration for wave consensus
type Config struct {
K int // Sample size
Alpha float64 // Threshold ratio
Beta uint32 // Confidence threshold
RoundTO time.Duration // Round timeout
}
// WaveState represents the state of an item in wave consensus
type WaveState struct {
Decided bool
Result types.Decision
Count uint32
}
// Wave manages threshold voting and confidence building
type Wave[T comparable] struct {
cfg Config
cut prism.Cut[T]
tx Transport[T]
// State tracking
states map[T]*WaveState
prefs map[T]bool // current preferences
}
// New creates a new Wave instance
func New[T comparable](cfg Config, cut prism.Cut[T], tx Transport[T]) Wave[T] <span class="cov0" title="0">{
return Wave[T]{
cfg: cfg,
cut: cut,
tx: tx,
states: make(map[T]*WaveState),
prefs: make(map[T]bool),
}
}</span>
// Tick performs one round of sampling and threshold checking for an item
func (w *Wave[T]) Tick(ctx context.Context, item T) <span class="cov0" title="0">{
// Get current state or create new one
state, exists := w.states[item]
if !exists </span><span class="cov0" title="0">{
state = &amp;WaveState{Decided: false, Result: types.DecideUndecided, Count: 0}
w.states[item] = state
}</span>
// Skip if already decided
<span class="cov0" title="0">if state.Decided </span><span class="cov0" title="0">{
return
}</span>
// Cut light rays (sample peers) and request votes
<span class="cov0" title="0">peers := w.cut.Sample(w.cfg.K)
votes := w.tx.RequestVotes(ctx, peers, item)
// Count votes
yesVotes := 0
totalVotes := 0
// Collect votes with timeout
timeout := time.After(w.cfg.RoundTO)
for </span><span class="cov0" title="0">{
select </span>{
case vote := &lt;-votes:<span class="cov0" title="0">
totalVotes++
if vote.Prefer </span><span class="cov0" title="0">{
yesVotes++
}</span>
// Break if we have enough votes
<span class="cov0" title="0">if totalVotes &gt;= w.cfg.K </span><span class="cov0" title="0">{
goto countVotes</span>
}
case &lt;-timeout:<span class="cov0" title="0">
goto countVotes</span>
case &lt;-ctx.Done():<span class="cov0" title="0">
return</span>
}
}
countVotes:
<span class="cov0" title="0">if totalVotes == 0 </span><span class="cov0" title="0">{
return
}</span>
// Check threshold
<span class="cov0" title="0">threshold := int(float64(w.cfg.K) * w.cfg.Alpha)
currentPref := w.prefs[item]
if yesVotes &gt;= threshold </span><span class="cov0" title="0">{
// Strong preference for yes
w.prefs[item] = true
if currentPref </span><span class="cov0" title="0">{
// Consecutive confirmation
state.Count++
}</span> else<span class="cov0" title="0"> {
// Preference switch
state.Count = 1
}</span>
} else<span class="cov0" title="0"> if (totalVotes - yesVotes) &gt;= threshold </span><span class="cov0" title="0">{
// Strong preference for no
w.prefs[item] = false
if !currentPref </span><span class="cov0" title="0">{
// Consecutive confirmation
state.Count++
}</span> else<span class="cov0" title="0"> {
// Preference switch
state.Count = 1
}</span>
} else<span class="cov0" title="0"> {
// No strong preference, reset count
state.Count = 0
}</span>
// Check for decision
<span class="cov0" title="0">if state.Count &gt;= w.cfg.Beta </span><span class="cov0" title="0">{
state.Decided = true
if w.prefs[item] </span><span class="cov0" title="0">{
state.Result = types.DecideAccept
}</span> else<span class="cov0" title="0"> {
state.Result = types.DecideReject
}</span>
}
}
// State returns the current state of an item
func (w *Wave[T]) State(item T) (*WaveState, bool) <span class="cov0" title="0">{
state, exists := w.states[item]
return state, exists
}</span>
// Preference returns the current preference for an item
func (w *Wave[T]) Preference(item T) bool <span class="cov0" title="0">{
return w.prefs[item]
}</span>
</pre>
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