mirror of
https://github.com/hanzoai/s3.git
synced 2026-11-03 03:07:41 +00:00
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.
128 lines
2.9 KiB
Go
128 lines
2.9 KiB
Go
package page_writer
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import (
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"sync"
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"sync/atomic"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"github.com/seaweedfs/seaweedfs/weed/util/mem"
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)
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var (
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_ = PageChunk(&MemChunk{})
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memChunkCounter int64
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)
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type MemChunk struct {
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sync.RWMutex
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buf []byte
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usage *ChunkWrittenIntervalList
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chunkSize int64
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logicChunkIndex LogicChunkIndex
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activityScore *ActivityScore
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lastWriteTsNs atomic.Int64
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}
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func NewMemChunk(logicChunkIndex LogicChunkIndex, chunkSize int64) *MemChunk {
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atomic.AddInt64(&memChunkCounter, 1)
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return &MemChunk{
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logicChunkIndex: logicChunkIndex,
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chunkSize: chunkSize,
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buf: mem.Allocate(int(chunkSize)),
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usage: newChunkWrittenIntervalList(),
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activityScore: NewActivityScore(),
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}
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}
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func (mc *MemChunk) FreeResource() {
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mc.Lock()
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defer mc.Unlock()
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atomic.AddInt64(&memChunkCounter, -1)
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mem.Free(mc.buf)
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}
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func (mc *MemChunk) WriteDataAt(src []byte, offset int64, tsNs int64) (n int) {
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mc.Lock()
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defer mc.Unlock()
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innerOffset := offset % mc.chunkSize
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n = copy(mc.buf[innerOffset:], src)
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mc.usage.MarkWritten(innerOffset, innerOffset+int64(n), tsNs)
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mc.activityScore.MarkWrite()
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mc.lastWriteTsNs.Store(tsNs)
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return
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}
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func (mc *MemChunk) ReadDataAt(p []byte, off int64, tsNs int64) (maxStop int64) {
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mc.RLock()
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defer mc.RUnlock()
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memChunkBaseOffset := int64(mc.logicChunkIndex) * mc.chunkSize
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for t := mc.usage.head.next; t != mc.usage.tail; t = t.next {
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logicStart := max(off, memChunkBaseOffset+t.StartOffset)
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logicStop := min(off+int64(len(p)), memChunkBaseOffset+t.stopOffset)
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if logicStart < logicStop {
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copy(p[logicStart-off:logicStop-off], mc.buf[logicStart-memChunkBaseOffset:logicStop-memChunkBaseOffset])
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maxStop = max(maxStop, logicStop)
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}
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}
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mc.activityScore.MarkRead()
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return
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}
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func (mc *MemChunk) IsComplete() bool {
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mc.RLock()
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defer mc.RUnlock()
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return mc.usage.IsComplete(mc.chunkSize)
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}
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func (mc *MemChunk) IsContiguouslyWritten() bool {
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mc.RLock()
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defer mc.RUnlock()
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return mc.usage.IsContiguouslyWritten()
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}
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func (mc *MemChunk) ActivityScore() int64 {
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return mc.activityScore.ActivityScore()
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}
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func (mc *MemChunk) WrittenSize() int64 {
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mc.RLock()
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defer mc.RUnlock()
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return mc.usage.WrittenSize()
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}
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func (mc *MemChunk) LastWriteTsNs() int64 {
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return mc.lastWriteTsNs.Load()
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}
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func (mc *MemChunk) SaveContent(saveFn SaveToStorageFunc) {
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mc.RLock()
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defer mc.RUnlock()
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if saveFn == nil {
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return
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}
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for t := mc.usage.head.next; t != mc.usage.tail; t = t.next {
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startOffset := t.StartOffset
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stopOffset := t.stopOffset
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tsNs := t.TsNs
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for t != mc.usage.tail && t.next.StartOffset == stopOffset {
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stopOffset = t.next.stopOffset
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t = t.next
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tsNs = max(tsNs, t.TsNs)
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}
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reader := util.NewBytesReader(mc.buf[startOffset:stopOffset])
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saveFn(reader, int64(mc.logicChunkIndex)*mc.chunkSize+startOffset, stopOffset-startOffset, tsNs, func() {
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})
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}
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}
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