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.
145 lines
3.9 KiB
Go
145 lines
3.9 KiB
Go
package exclusive_locks
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import (
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"context"
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"sync/atomic"
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"time"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
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"github.com/seaweedfs/seaweedfs/weed/wdclient"
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)
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const (
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RenewInterval = 4 * time.Second
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SafeRenewInterval = 3 * time.Second
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InitLockInterval = 1 * time.Second
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)
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type ExclusiveLocker struct {
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token int64
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lockTsNs int64
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isLocked atomic.Bool
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masterClient *wdclient.MasterClient
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lockName string
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message string
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clientName string
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// Each lock has and only has one goroutine
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renewGoroutineRunning atomic.Bool
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}
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func NewExclusiveLocker(masterClient *wdclient.MasterClient, lockName string) *ExclusiveLocker {
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return &ExclusiveLocker{
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masterClient: masterClient,
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lockName: lockName,
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}
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}
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func (l *ExclusiveLocker) IsLocked() bool {
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return l.isLocked.Load()
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}
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func (l *ExclusiveLocker) GetToken() (token int64, lockTsNs int64) {
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for time.Unix(0, atomic.LoadInt64(&l.lockTsNs)).Add(SafeRenewInterval).Before(time.Now()) {
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// wait until now is within the safe lock period, no immediate renewal to change the token
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time.Sleep(100 * time.Millisecond)
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}
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return atomic.LoadInt64(&l.token), atomic.LoadInt64(&l.lockTsNs)
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}
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func (l *ExclusiveLocker) RequestLock(clientName string) {
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if l.isLocked.Load() {
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return
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}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// retry to get the lease
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for {
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if err := l.masterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
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resp, err := client.LeaseAdminToken(ctx, &master_pb.LeaseAdminTokenRequest{
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PreviousToken: atomic.LoadInt64(&l.token),
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PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
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LockName: l.lockName,
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ClientName: clientName,
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})
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if err == nil {
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atomic.StoreInt64(&l.token, resp.Token)
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atomic.StoreInt64(&l.lockTsNs, resp.LockTsNs)
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}
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return err
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}); err != nil {
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glog.V(2).Infof("Failed to acquire lock %s: %v", l.lockName, err)
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time.Sleep(InitLockInterval)
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} else {
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break
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}
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}
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l.isLocked.Store(true)
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l.clientName = clientName
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glog.V(1).Infof("Acquired lock %s", l.lockName)
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// Each lock has and only has one goroutine
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if l.renewGoroutineRunning.CompareAndSwap(false, true) {
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// start a goroutine to renew the lease
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go func() {
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ctx2, cancel2 := context.WithCancel(context.Background())
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defer cancel2()
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for {
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if l.isLocked.Load() {
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if err := l.masterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
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resp, err := client.LeaseAdminToken(ctx2, &master_pb.LeaseAdminTokenRequest{
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PreviousToken: atomic.LoadInt64(&l.token),
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PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
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LockName: l.lockName,
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ClientName: l.clientName,
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Message: l.message,
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})
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if err == nil {
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atomic.StoreInt64(&l.token, resp.Token)
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atomic.StoreInt64(&l.lockTsNs, resp.LockTsNs)
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glog.V(2).Infof("Renewed lock %s: ts %d token %d", l.lockName, l.lockTsNs, l.token)
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}
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return err
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}); err != nil {
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glog.Warningf("Failed to renew lock %s: %v", l.lockName, err)
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l.isLocked.Store(false)
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return
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} else {
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time.Sleep(RenewInterval)
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}
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} else {
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time.Sleep(RenewInterval)
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}
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}
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}()
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}
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}
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func (l *ExclusiveLocker) ReleaseLock() {
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l.isLocked.Store(false)
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l.clientName = ""
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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l.masterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
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client.ReleaseAdminToken(ctx, &master_pb.ReleaseAdminTokenRequest{
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PreviousToken: atomic.LoadInt64(&l.token),
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PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
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LockName: l.lockName,
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})
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return nil
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})
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atomic.StoreInt64(&l.token, 0)
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atomic.StoreInt64(&l.lockTsNs, 0)
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}
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func (l *ExclusiveLocker) SetMessage(message string) {
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l.message = message
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}
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