Files
s3/weed/mount/filehandle_map.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

113 lines
2.6 KiB
Go

package mount
import (
"sync"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)
type FileHandleToInode struct {
sync.RWMutex
inode2fh map[uint64]*FileHandle
fh2inode map[FileHandleId]uint64
}
func NewFileHandleToInode() *FileHandleToInode {
return &FileHandleToInode{
inode2fh: make(map[uint64]*FileHandle),
fh2inode: make(map[FileHandleId]uint64),
}
}
func (i *FileHandleToInode) GetFileHandle(fh FileHandleId) *FileHandle {
i.RLock()
defer i.RUnlock()
inode, found := i.fh2inode[fh]
if found {
return i.inode2fh[inode]
}
return nil
}
func (i *FileHandleToInode) FindFileHandle(inode uint64) (fh *FileHandle, found bool) {
i.RLock()
defer i.RUnlock()
fh, found = i.inode2fh[inode]
return
}
// MarkInodeRenamed sets isRenamed on any file handle associated with the
// given inode. This prevents the async flush from recreating a renamed
// file's metadata under its old path.
func (i *FileHandleToInode) MarkInodeRenamed(inode uint64) {
i.RLock()
defer i.RUnlock()
if fh, ok := i.inode2fh[inode]; ok {
fh.isRenamed = true
}
}
func (i *FileHandleToInode) AcquireFileHandle(wfs *WFS, inode uint64, entry *filer_pb.Entry) *FileHandle {
i.Lock()
defer i.Unlock()
fh, found := i.inode2fh[inode]
if !found {
fh = newFileHandle(wfs, FileHandleId(util.RandomUint64()), inode, entry)
i.inode2fh[inode] = fh
i.fh2inode[fh.fh] = inode
} else {
fh.counter++
}
if fh.GetEntry().GetEntry() != entry {
fh.SetEntry(entry)
}
return fh
}
func (i *FileHandleToInode) ReleaseByHandle(fh FileHandleId) *FileHandle {
i.Lock()
defer i.Unlock()
inode, found := i.fh2inode[fh]
if !found {
return nil
}
fhHandle, fhFound := i.inode2fh[inode]
if !fhFound {
delete(i.fh2inode, fh)
return nil
}
// If the counter is already <= 0, a prior Release already started the
// drain. Return nil to prevent double-processing.
if fhHandle.counter <= 0 {
return nil
}
fhHandle.counter--
if fhHandle.counter <= 0 {
if fhHandle.asyncFlushPending {
// Handle stays in fhMap so rename/unlink can still find it
// via FindFileHandle during the background drain.
return fhHandle
}
delete(i.inode2fh, inode)
delete(i.fh2inode, fhHandle.fh)
return fhHandle
}
return nil
}
// RemoveFileHandle removes a handle from both maps. Called after an async
// drain completes to clean up the handle that was intentionally kept in the
// maps during the flush.
func (i *FileHandleToInode) RemoveFileHandle(fh FileHandleId, inode uint64) {
i.Lock()
defer i.Unlock()
delete(i.inode2fh, inode)
delete(i.fh2inode, fh)
}