Files
s3/weed/mount/weedfs_stats.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

117 lines
3.3 KiB
Go

package mount
import (
"context"
"fmt"
"math"
"time"
"github.com/seaweedfs/go-fuse/v2/fuse"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)
const blockSize = 512
type statsCache struct {
filer_pb.StatisticsResponse
lastChecked int64 // unix time in seconds
}
func (wfs *WFS) StatFs(cancel <-chan struct{}, in *fuse.InHeader, out *fuse.StatfsOut) (code fuse.Status) {
// glog.V(4).Infof("reading fs stats")
if wfs.stats.lastChecked < time.Now().Unix()-20 {
err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.StatisticsRequest{
Collection: wfs.option.Collection,
Replication: wfs.option.Replication,
Ttl: fmt.Sprintf("%ds", wfs.option.TtlSec),
DiskType: string(wfs.option.DiskType),
}
glog.V(4).Infof("reading filer stats: %+v", request)
resp, err := client.Statistics(context.Background(), request)
if err != nil {
glog.V(0).Infof("reading filer stats %v: %v", request, err)
return err
}
glog.V(4).Infof("read filer stats: %+v", resp)
wfs.stats.TotalSize = resp.TotalSize
wfs.stats.UsedSize = resp.UsedSize
wfs.stats.FileCount = resp.FileCount
wfs.stats.lastChecked = time.Now().Unix()
return nil
})
if err != nil {
glog.V(0).Infof("filer Statistics: %v", err)
return fuse.OK
}
}
totalDiskSize := wfs.stats.TotalSize
usedDiskSize := wfs.stats.UsedSize
actualFileCount := wfs.stats.FileCount
if wfs.option.Quota > 0 && totalDiskSize > uint64(wfs.option.Quota) {
totalDiskSize = uint64(wfs.option.Quota)
if usedDiskSize > totalDiskSize {
totalDiskSize = usedDiskSize
}
}
// http://man.he.net/man2/statfs
/*
struct statfs {
__fsword_t f_type; // Type of filesystem (see below)
__fsword_t f_bsize; // Optimal transfer block size
fsblkcnt_t f_blocks; // Total data blocks in filesystem
fsblkcnt_t f_bfree; // Free blocks in filesystem
fsblkcnt_t f_bavail; // Free blocks available to
unprivileged user
fsfilcnt_t f_files; // Total file nodes in filesystem
fsfilcnt_t f_ffree; // Free file nodes in filesystem
fsid_t f_fsid; // Filesystem ID
__fsword_t f_namelen; // Maximum length of filenames
__fsword_t f_frsize; // Fragment size (since Linux 2.6)
__fsword_t f_flags; // Mount flags of filesystem
(since Linux 2.6.36)
__fsword_t f_spare[xxx];
// Padding bytes reserved for future use
};
*/
// Compute the total number of available blocks
out.Blocks = totalDiskSize / blockSize
if out.Blocks <= 0 {
out.Blocks = 1
}
// Compute the number of used blocks
numBlocks := usedDiskSize / blockSize
remainingBlocks := int64(out.Blocks) - int64(numBlocks)
if remainingBlocks < 0 {
remainingBlocks = 0
}
// Report the number of free and available blocks for the block size
out.Bfree = uint64(remainingBlocks)
out.Bavail = uint64(remainingBlocks)
out.Bsize = uint32(blockSize)
// Report the total number of possible files in the file system (and those free)
out.Files = math.MaxInt64
out.Ffree = math.MaxInt64 - actualFileCount
// Report the maximum length of a name and the minimum fragment size
out.NameLen = 255
out.Frsize = uint32(blockSize)
return fuse.OK
}