Files
s3/weed/mount/weedfs_file_lock.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
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.
2026-06-18 23:41:25 -07:00

64 lines
1.7 KiB
Go

package mount
import (
"syscall"
"github.com/seaweedfs/go-fuse/v2/fuse"
)
// GetLk queries for a conflicting lock on the file.
// If a conflict exists, the conflicting lock is returned in out.
// If no conflict, out.Lk.Typ is set to F_UNLCK.
func (wfs *WFS) GetLk(cancel <-chan struct{}, in *fuse.LkIn, out *fuse.LkOut) fuse.Status {
if wfs.crossMountLocks() {
return wfs.routedGetLk(cancel, in, out)
}
proposed := lockRange{
Start: in.Lk.Start,
End: in.Lk.End,
Typ: in.Lk.Typ,
Owner: in.Owner,
Pid: in.Lk.Pid,
IsFlock: in.LkFlags&fuse.FUSE_LK_FLOCK != 0,
}
wfs.posixLocks.GetLk(in.NodeId, proposed, out)
return fuse.OK
}
// SetLk sets or clears a POSIX lock (non-blocking).
// Returns EAGAIN if the lock conflicts with an existing lock from another owner.
func (wfs *WFS) SetLk(cancel <-chan struct{}, in *fuse.LkIn) fuse.Status {
if wfs.crossMountLocks() {
return wfs.routedSetLk(cancel, in)
}
lk := lockRange{
Start: in.Lk.Start,
End: in.Lk.End,
Typ: in.Lk.Typ,
Owner: in.Owner,
Pid: in.Lk.Pid,
IsFlock: in.LkFlags&fuse.FUSE_LK_FLOCK != 0,
}
return wfs.posixLocks.SetLk(in.NodeId, lk)
}
// SetLkw sets a POSIX lock (blocking).
// Waits until the lock can be acquired or the request is cancelled.
func (wfs *WFS) SetLkw(cancel <-chan struct{}, in *fuse.LkIn) fuse.Status {
if wfs.crossMountLocks() {
return wfs.routedSetLkw(cancel, in)
}
lk := lockRange{
Start: in.Lk.Start,
End: in.Lk.End,
Typ: in.Lk.Typ,
Owner: in.Owner,
Pid: in.Lk.Pid,
IsFlock: in.LkFlags&fuse.FUSE_LK_FLOCK != 0,
}
if lk.Typ == syscall.F_UNLCK {
return wfs.posixLocks.SetLk(in.NodeId, lk)
}
return wfs.posixLocks.SetLkw(in.NodeId, lk, cancel)
}