feat: add tree container

This commit is contained in:
2026-01-10 00:46:55 -08:00
parent 5ff86f515b
commit abc4038885
5 changed files with 603 additions and 7 deletions
+144
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@@ -0,0 +1,144 @@
// Copyright (C) 2019-2025, Lux Industries, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package bloom
import (
"encoding/binary"
"errors"
"math"
"sync"
)
var (
ErrInvalidNumHashes = errors.New("numHashes must be positive")
ErrInvalidNumEntries = errors.New("numEntries must be positive")
)
// OptimalParameters returns optimal numHashes and numEntries for a bloom filter
// given the expected number of elements and desired false positive probability.
func OptimalParameters(maxN int, p float64) (numHashes int, numEntries int) {
if maxN <= 0 || p <= 0 || p >= 1 {
return 1, 1
}
n := float64(maxN)
m := -1 * n * math.Log(p) / (math.Ln2 * math.Ln2)
k := m / n * math.Ln2
numEntries = int(math.Ceil(m / 8)) // entries in bytes
numHashes = int(math.Ceil(k))
if numEntries < 1 {
numEntries = 1
}
if numHashes < 1 {
numHashes = 1
}
return numHashes, numEntries
}
// Hash computes a 64-bit hash of the given bytes.
// The extra parameter allows for additional entropy.
func Hash(b []byte, extra []byte) uint64 {
// Simple FNV-1a hash
const (
fnvOffset = 14695981039346656037
fnvPrime = 1099511628211
)
h := uint64(fnvOffset)
for _, c := range b {
h ^= uint64(c)
h *= fnvPrime
}
for _, c := range extra {
h ^= uint64(c)
h *= fnvPrime
}
return h
}
// Filter is a thread-safe bloom filter.
type Filter struct {
mu sync.RWMutex
bits []byte
numHashes int
numEntries int
}
// New creates a new bloom filter with the given parameters.
func New(numHashes, numEntries int) (*Filter, error) {
if numHashes <= 0 {
return nil, ErrInvalidNumHashes
}
if numEntries <= 0 {
return nil, ErrInvalidNumEntries
}
return &Filter{
bits: make([]byte, numEntries),
numHashes: numHashes,
numEntries: numEntries,
}, nil
}
// Add adds the hash to the filter.
func (f *Filter) Add(hash uint64) {
f.mu.Lock()
defer f.mu.Unlock()
h1 := uint32(hash)
h2 := uint32(hash >> 32)
numBits := uint32(f.numEntries * 8)
for i := 0; i < f.numHashes; i++ {
bit := (h1 + uint32(i)*h2) % numBits
byteIdx := bit / 8
bitIdx := bit % 8
f.bits[byteIdx] |= 1 << bitIdx
}
}
// Contains checks if the hash might be in the filter.
func (f *Filter) Contains(hash uint64) bool {
f.mu.RLock()
defer f.mu.RUnlock()
h1 := uint32(hash)
h2 := uint32(hash >> 32)
numBits := uint32(f.numEntries * 8)
for i := 0; i < f.numHashes; i++ {
bit := (h1 + uint32(i)*h2) % numBits
byteIdx := bit / 8
bitIdx := bit % 8
if f.bits[byteIdx]&(1<<bitIdx) == 0 {
return false
}
}
return true
}
// MarshalBinary returns the binary representation of the filter.
func (f *Filter) MarshalBinary() ([]byte, error) {
f.mu.RLock()
defer f.mu.RUnlock()
// Format: 1 byte numHashes + 8 bytes numEntries + bits
buf := make([]byte, 1+8+len(f.bits))
buf[0] = byte(f.numHashes)
binary.BigEndian.PutUint64(buf[1:9], uint64(f.numEntries))
copy(buf[9:], f.bits)
return buf, nil
}
// UnmarshalBinary restores the filter from binary representation.
func (f *Filter) UnmarshalBinary(data []byte) error {
if len(data) < 9 {
return errors.New("data too short")
}
f.mu.Lock()
defer f.mu.Unlock()
f.numHashes = int(data[0])
f.numEntries = int(binary.BigEndian.Uint64(data[1:9]))
f.bits = make([]byte, len(data)-9)
copy(f.bits, data[9:])
return nil
}
+41 -2
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@@ -4,6 +4,7 @@ go 1.25.5
require (
github.com/google/btree v1.1.3
github.com/luxfi/consensus v1.22.53
github.com/luxfi/ids v1.2.9
github.com/luxfi/math v1.2.3
github.com/luxfi/timer v1.0.1
@@ -15,16 +16,54 @@ require (
)
require (
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/cloudflare/circl v1.6.2 // indirect
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
github.com/kr/text v0.2.0 // indirect
github.com/dgraph-io/badger/v4 v4.9.0 // indirect
github.com/dgraph-io/ristretto/v2 v2.3.0 // indirect
github.com/dustin/go-humanize v1.0.1 // indirect
github.com/go-logr/logr v1.4.3 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/golang/snappy v1.0.0 // indirect
github.com/google/flatbuffers v25.12.19+incompatible // indirect
github.com/holiman/uint256 v1.3.2 // indirect
github.com/klauspost/compress v1.18.2 // indirect
github.com/luxfi/cache v1.1.0 // indirect
github.com/luxfi/compress v0.0.2 // indirect
github.com/luxfi/concurrent v0.0.2 // indirect
github.com/luxfi/crypto v1.17.38 // indirect
github.com/luxfi/database v1.17.38 // indirect
github.com/luxfi/log v1.2.1 // indirect
github.com/luxfi/math/big v0.1.0 // indirect
github.com/luxfi/metric v1.4.9 // indirect
github.com/luxfi/mock v0.1.0 // indirect
github.com/luxfi/p2p v1.18.4 // indirect
github.com/luxfi/sampler v1.0.0 // indirect
github.com/luxfi/vm v1.0.2 // indirect
github.com/mr-tron/base58 v1.2.0 // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
github.com/sanity-io/litter v1.5.1 // indirect
github.com/prometheus/client_golang v1.23.2 // indirect
github.com/prometheus/client_model v0.6.2 // indirect
github.com/prometheus/common v0.67.5 // indirect
github.com/prometheus/procfs v0.19.2 // indirect
github.com/sanity-io/litter v1.5.5 // indirect
github.com/supranational/blst v0.3.16 // indirect
github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a // indirect
go.opentelemetry.io/auto/sdk v1.2.1 // indirect
go.opentelemetry.io/otel v1.39.0 // indirect
go.opentelemetry.io/otel/metric v1.39.0 // indirect
go.opentelemetry.io/otel/trace v1.39.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
go.uber.org/zap v1.27.1 // indirect
go.yaml.in/yaml/v2 v2.4.3 // indirect
go.yaml.in/yaml/v3 v3.0.4 // indirect
golang.org/x/crypto v0.46.0 // indirect
golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 // indirect
golang.org/x/net v0.48.0 // indirect
golang.org/x/sys v0.39.0 // indirect
google.golang.org/protobuf v1.36.11 // indirect
gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)
+208 -5
View File
@@ -1,55 +1,258 @@
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251230134950-44c893854e3f h1:a5PUgHGinaD6XrLmIDLQmGHocjIjBsBAcR5gALjZvMU=
github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251230134950-44c893854e3f/go.mod h1:ioLG6R+5bUSO1oeGSDxOV3FADARuMoytZCSX6MEMQkI=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/cloudflare/circl v1.6.2 h1:hL7VBpHHKzrV5WTfHCaBsgx/HGbBYlgrwvNXEVDYYsQ=
github.com/cloudflare/circl v1.6.2/go.mod h1:2eXP6Qfat4O/Yhh8BznvKnJ+uzEoTQ6jVKJRn81BiS4=
github.com/davecgh/go-spew v0.0.0-20161028175848-04cdfd42973b/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 h1:NMZiJj8QnKe1LgsbDayM4UoHwbvwDRwnI3hwNaAHRnc=
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0/go.mod h1:ZXNYxsqcloTdSy/rNShjYzMhyjf0LaoftYK0p+A3h40=
github.com/dgraph-io/badger/v4 v4.9.0 h1:tpqWb0NewSrCYqTvywbcXOhQdWcqephkVkbBmaaqHzc=
github.com/dgraph-io/badger/v4 v4.9.0/go.mod h1:5/MEx97uzdPUHR4KtkNt8asfI2T4JiEiQlV7kWUo8c0=
github.com/dgraph-io/ristretto/v2 v2.3.0 h1:qTQ38m7oIyd4GAed/QkUZyPFNMnvVWyazGXRwvOt5zk=
github.com/dgraph-io/ristretto/v2 v2.3.0/go.mod h1:gpoRV3VzrEY1a9dWAYV6T1U7YzfgttXdd/ZzL1s9OZM=
github.com/dgryski/go-farm v0.0.0-20240924180020-3414d57e47da h1:aIftn67I1fkbMa512G+w+Pxci9hJPB8oMnkcP3iZF38=
github.com/dgryski/go-farm v0.0.0-20240924180020-3414d57e47da/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/fsnotify/fsnotify v1.5.4 h1:jRbGcIw6P2Meqdwuo0H1p6JVLbL5DHKAKlYndzMwVZI=
github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/golang/snappy v1.0.0 h1:Oy607GVXHs7RtbggtPBnr2RmDArIsAefDwvrdWvRhGs=
github.com/golang/snappy v1.0.0/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/btree v1.1.3 h1:CVpQJjYgC4VbzxeGVHfvZrv1ctoYCAI8vbl07Fcxlyg=
github.com/google/btree v1.1.3/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/flatbuffers v25.12.19+incompatible h1:haMV2JRRJCe1998HeW/p0X9UaMTK6SDo0ffLn2+DbLs=
github.com/google/flatbuffers v25.12.19+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/holiman/uint256 v1.3.2 h1:a9EgMPSC1AAaj1SZL5zIQD3WbwTuHrMGOerLjGmM/TA=
github.com/holiman/uint256 v1.3.2/go.mod h1:EOMSn4q6Nyt9P6efbI3bueV4e1b3dGlUCXeiRV4ng7E=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
github.com/klauspost/compress v1.18.2 h1:iiPHWW0YrcFgpBYhsA6D1+fqHssJscY/Tm/y2Uqnapk=
github.com/klauspost/compress v1.18.2/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/luxfi/cache v1.1.0 h1:6LUyGGZ+rrMAJBbAU6+UwkcamXj3zsboRUodIof2Ong=
github.com/luxfi/cache v1.1.0/go.mod h1:9GvlEEE9rFPaaWxvVpSPwW8ZMo2+8VMNNcuPa4AwzPg=
github.com/luxfi/compress v0.0.2 h1:tPZltN+efOjCvooVNJvNYHslVIm50BDD2ocKMk4chdA=
github.com/luxfi/compress v0.0.2/go.mod h1:cfa7L3STdZdsMwJc9faZML1modLNh1n2u72n/DOfuNU=
github.com/luxfi/concurrent v0.0.2 h1:DwGQEKOVenqf38t6BAKfoDsAqjiwrpSKm+h22CiT008=
github.com/luxfi/concurrent v0.0.2/go.mod h1:SwEDrQXVAXgBiObXVg0pfmLzU1xsa9ZeBRptkBdyNUU=
github.com/luxfi/consensus v1.22.53 h1:iwrnImZJ7Ur6oV7rx0WSrR7n3X92pdnOX3mivCBCuZ4=
github.com/luxfi/consensus v1.22.53/go.mod h1:GicEGtNrPPG6063k/aRFusv87e17i0UwmgeY4D8Vn6s=
github.com/luxfi/crypto v1.17.38 h1:PZ52opsm3ECvyKsR2pLSsKONCey+FqpN0ZEwu+KMdO4=
github.com/luxfi/crypto v1.17.38/go.mod h1:G2t1GQvPsrwnzwyVEj0LQDuX2AWZVI5kEAPyVeicc5o=
github.com/luxfi/database v1.17.38 h1:HsjHoUyQI+vn61HNFyyWo/fw+wkd/I7E8LAdIvmN7BU=
github.com/luxfi/database v1.17.38/go.mod h1:q6BJNN+47VtkmkGrswQmC0ikERYAdlmZCYhGTXkF4mM=
github.com/luxfi/geth v1.16.69 h1:CHO6xTZ+A+3itk94ts4uyVRJajNVP3RxWTjJp5qGOlk=
github.com/luxfi/geth v1.16.69/go.mod h1:8eEO1hW5sa6OH2VeCMaCPnRz28JBxFvCPBCWPLsU2ck=
github.com/luxfi/ids v1.2.9 h1:+yjdhXW99drnd2Zlp1u/p8k3G23W3/1btJQ4ogHawUI=
github.com/luxfi/ids v1.2.9/go.mod h1:khJOEdOPxd22yn0jcVrnbX1ADa0GHn5Y74gvCzN5BYc=
github.com/luxfi/log v1.2.1 h1:L2JM8MjGPF8rBnY+EXODS9x5OQTGSgeQ1SPFmeB+oPY=
github.com/luxfi/log v1.2.1/go.mod h1:0vJzb4Hl9fvgwWDMKcbCD/SYH3bO0iSmgZMcYdfdl1o=
github.com/luxfi/math v1.2.3 h1:BgvIFw/srPXFLbcqtoDhLJOfmBsn86GPA1iWgsoyUb4=
github.com/luxfi/math v1.2.3/go.mod h1:C8STnF2H+D6rqBPt248CiWY2TGuJgdtv/+4UqrT15iM=
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golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
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golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
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golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
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golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
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google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
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google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+106
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// Copyright (C) 2019-2025, Lux Industries, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package tree
import (
"context"
"maps"
"slices"
chainblock "github.com/luxfi/consensus/engine/chain/block"
"github.com/luxfi/ids"
)
// Tree handles the propagation of block acceptance and rejection to inner
// blocks.
//
// The Tree is needed because:
// 1. The consensus engine guarantees that for each verified block, either
// Accept() or Reject() are eventually called, and they are called only once.
// The proposervm must maintain these invariants for the wrapped VM.
// 2. A given inner block may be wrapped into multiple different proposervm
// blocks (e.g. same inner block generated by two validators).
//
// The Tree prevents Accept() and Reject() from being called multiple times on
// the same inner block by:
// 1. tracking inner blocks in a tree-like structure, to be able to easily spot
// siblings
// 2. rejecting an inner block only when one of the siblings is accepted.
// Rejection of a proposervm block does not imply its inner block rejection
// (it may be held by a different proposervm block).
type Tree interface {
// Add places the block in the tree
Add(chainblock.Block)
// Get returns the block that was added to this tree whose parent and ID
// match the provided block. If non-exists, then false will be returned.
Get(chainblock.Block) (chainblock.Block, bool)
// Accept marks the provided block as accepted and rejects every conflicting
// block.
Accept(context.Context, chainblock.Block) error
}
type tree struct {
// parentID -> childID -> childBlock
nodes map[ids.ID]map[ids.ID]chainblock.Block
}
func New() Tree {
return &tree{
nodes: make(map[ids.ID]map[ids.ID]chainblock.Block),
}
}
func (t *tree) Add(blk chainblock.Block) {
parentID := blk.Parent()
children, exists := t.nodes[parentID]
if !exists {
children = make(map[ids.ID]chainblock.Block)
t.nodes[parentID] = children
}
children[blk.ID()] = blk
}
func (t *tree) Get(blk chainblock.Block) (chainblock.Block, bool) {
parentID := blk.Parent()
children := t.nodes[parentID]
originalBlk, exists := children[blk.ID()]
return originalBlk, exists
}
func (t *tree) Accept(ctx context.Context, blk chainblock.Block) error {
// accept the provided block
if err := blk.Accept(ctx); err != nil {
return err
}
// get the siblings of the block
parentID := blk.Parent()
children := t.nodes[parentID]
delete(children, blk.ID())
delete(t.nodes, parentID)
// mark the siblings of the accepted block as rejectable
childrenToReject := slices.Collect(maps.Values(children))
// reject all the rejectable blocks
for len(childrenToReject) > 0 {
i := len(childrenToReject) - 1
child := childrenToReject[i]
childrenToReject = childrenToReject[:i]
// reject the block
if err := child.Reject(ctx); err != nil {
return err
}
// mark the progeny of this block as being rejectable
childID := child.ID()
children := t.nodes[childID]
childrenToReject = append(childrenToReject, slices.Collect(maps.Values(children))...)
delete(t.nodes, childID)
}
return nil
}
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// Copyright (C) 2019-2025, Lux Industries, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package tree
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"github.com/luxfi/consensus/engine/chain/chaintest"
consensustest "github.com/luxfi/consensus/test/helpers"
)
func TestAcceptSingleBlock(t *testing.T) {
require := require.New(t)
tr := New()
block := chaintest.BuildChild(chaintest.Genesis)
_, contains := tr.Get(block)
require.False(contains)
tr.Add(block)
_, contains = tr.Get(block)
require.True(contains)
require.NoError(tr.Accept(context.Background(), block))
require.Equal(consensustest.Accepted, block.Status())
_, contains = tr.Get(block)
require.False(contains)
}
func TestAcceptBlockConflict(t *testing.T) {
require := require.New(t)
tr := New()
blockToAccept := chaintest.BuildChild(chaintest.Genesis)
blockToReject := chaintest.BuildChild(chaintest.Genesis)
// add conflicting blocks
tr.Add(blockToAccept)
_, contains := tr.Get(blockToAccept)
require.True(contains)
tr.Add(blockToReject)
_, contains = tr.Get(blockToReject)
require.True(contains)
// accept one of them
require.NoError(tr.Accept(context.Background(), blockToAccept))
// check their statuses and that they are removed from the tree
require.Equal(consensustest.Accepted, blockToAccept.Status())
_, contains = tr.Get(blockToAccept)
require.False(contains)
require.Equal(consensustest.Rejected, blockToReject.Status())
_, contains = tr.Get(blockToReject)
require.False(contains)
}
func TestAcceptChainConflict(t *testing.T) {
require := require.New(t)
tr := New()
blockToAccept := chaintest.BuildChild(chaintest.Genesis)
blockToReject := chaintest.BuildChild(chaintest.Genesis)
blockToRejectChild := chaintest.BuildChild(blockToReject)
// add conflicting blocks.
tr.Add(blockToAccept)
_, contains := tr.Get(blockToAccept)
require.True(contains)
tr.Add(blockToReject)
_, contains = tr.Get(blockToReject)
require.True(contains)
tr.Add(blockToRejectChild)
_, contains = tr.Get(blockToRejectChild)
require.True(contains)
// accept one of them
require.NoError(tr.Accept(context.Background(), blockToAccept))
// check their statuses and whether they are removed from tree
require.Equal(consensustest.Accepted, blockToAccept.Status())
_, contains = tr.Get(blockToAccept)
require.False(contains)
require.Equal(consensustest.Rejected, blockToReject.Status())
_, contains = tr.Get(blockToReject)
require.False(contains)
require.Equal(consensustest.Rejected, blockToRejectChild.Status())
_, contains = tr.Get(blockToRejectChild)
require.False(contains)
}