mirror of
https://github.com/hanzoai/s3.git
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zooqueen
dd74d3e6d6
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.
- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
"Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
(replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
keep their upstream import paths with zero churn. Internal identifiers and
import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
help/usage/flag strings, shell autocomplete program name, and the product name
in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
(e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
`cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
updated to ignore the `s3` build output.
124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
package reader
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import (
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"sync"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3lifecycle"
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)
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// Cursor tracks the meta-log position for each ActionKey within one shard.
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// Position = tsNs of the last event the shard's reader+downstream considers
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// "fully resolved" for this ActionKey. Subscription resumes at the minimum
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// position across all keys.
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//
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// A frozen key is pinned at its current position (BLOCKED outcome): Advance
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// is a no-op until Unfreeze. The meta-log retention bounds how long a freeze
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// can last before the entry expires from the log; operator action via the
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// blocker-resolve flow lifts the freeze.
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type Cursor struct {
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mu sync.RWMutex
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state map[s3lifecycle.ActionKey]int64
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frozen map[s3lifecycle.ActionKey]struct{}
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}
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func NewCursor() *Cursor {
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return &Cursor{
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state: map[s3lifecycle.ActionKey]int64{},
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frozen: map[s3lifecycle.ActionKey]struct{}{},
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}
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}
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// MinTsNs returns the smallest position across all keys; zero if empty.
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// Used as the resume point for the meta-log subscription.
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func (c *Cursor) MinTsNs() int64 {
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c.mu.RLock()
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defer c.mu.RUnlock()
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if len(c.state) == 0 {
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return 0
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}
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var min int64 = -1
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for _, v := range c.state {
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if min < 0 || v < min {
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min = v
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}
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}
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if min < 0 {
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return 0
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}
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return min
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}
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// Get returns the current position for key, or 0 if unset.
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func (c *Cursor) Get(key s3lifecycle.ActionKey) int64 {
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c.mu.RLock()
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defer c.mu.RUnlock()
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return c.state[key]
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}
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// Advance moves key's position forward to tsNs. No-op if key is frozen, if
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// tsNs <= current, or if tsNs <= 0.
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func (c *Cursor) Advance(key s3lifecycle.ActionKey, tsNs int64) {
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if tsNs <= 0 {
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return
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}
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c.mu.Lock()
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defer c.mu.Unlock()
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if _, isFrozen := c.frozen[key]; isFrozen {
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return
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}
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if cur := c.state[key]; tsNs > cur {
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c.state[key] = tsNs
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}
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}
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// Freeze pins key at its current position. If key has no recorded position
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// yet, it is set to tsNs.
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func (c *Cursor) Freeze(key s3lifecycle.ActionKey, tsNs int64) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if _, exists := c.state[key]; !exists {
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c.state[key] = tsNs
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}
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c.frozen[key] = struct{}{}
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}
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// Unfreeze releases a freeze. Subsequent Advance calls take effect.
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func (c *Cursor) Unfreeze(key s3lifecycle.ActionKey) {
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c.mu.Lock()
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defer c.mu.Unlock()
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delete(c.frozen, key)
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}
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// IsFrozen reports whether key is currently pinned.
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func (c *Cursor) IsFrozen(key s3lifecycle.ActionKey) bool {
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c.mu.RLock()
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defer c.mu.RUnlock()
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_, ok := c.frozen[key]
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return ok
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}
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// Snapshot copies the cursor map for persistence. Frozen keys are not
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// distinguished in the snapshot; callers persist freezes via the separate
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// blocker-record store.
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func (c *Cursor) Snapshot() map[s3lifecycle.ActionKey]int64 {
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c.mu.RLock()
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defer c.mu.RUnlock()
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out := make(map[s3lifecycle.ActionKey]int64, len(c.state))
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for k, v := range c.state {
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out[k] = v
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}
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return out
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}
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// Restore replaces the cursor map. Freezes are not restored here; the
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// caller re-applies them from blocker records on startup.
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func (c *Cursor) Restore(state map[s3lifecycle.ActionKey]int64) {
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c.mu.Lock()
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defer c.mu.Unlock()
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c.state = make(map[s3lifecycle.ActionKey]int64, len(state))
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for k, v := range state {
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c.state[k] = v
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}
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c.frozen = map[s3lifecycle.ActionKey]struct{}{}
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}
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