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file set attribute

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This commit is contained in:
chrislu
2022-02-14 01:36:10 -08:00
parent dbeeda8123
commit fe57a2e770
7 changed files with 59 additions and 14 deletions
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44
weed/mount/weedfs_attr.go
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@@ -2,6 +2,7 @@ package mount
import (
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/hanwen/go-fuse/v2/fuse"
"os"
@@ -15,7 +16,7 @@ func (wfs *WFS) GetAttr(cancel <-chan struct{}, input *fuse.GetAttrIn, out *fuse
return fuse.OK
}
_, entry, status := wfs.maybeReadEntry(input.NodeId)
_, _, entry, status := wfs.maybeReadEntry(input.NodeId)
if status != fuse.OK {
return status
}
@@ -27,13 +28,43 @@ func (wfs *WFS) GetAttr(cancel <-chan struct{}, input *fuse.GetAttrIn, out *fuse
func (wfs *WFS) SetAttr(cancel <-chan struct{}, input *fuse.SetAttrIn, out *fuse.AttrOut) (code fuse.Status) {
// TODO this is only for directory. Filet setAttr involves open files and truncate to a size
path, entry, status := wfs.maybeReadEntry(input.NodeId)
path, fh, entry, status := wfs.maybeReadEntry(input.NodeId)
if status != fuse.OK {
return status
}
if size, ok := input.GetSize(); ok {
glog.V(4).Infof("%v setattr set size=%v chunks=%d", path, size, len(entry.Chunks))
if size < filer.FileSize(entry) {
// fmt.Printf("truncate %v \n", fullPath)
var chunks []*filer_pb.FileChunk
var truncatedChunks []*filer_pb.FileChunk
for _, chunk := range entry.Chunks {
int64Size := int64(chunk.Size)
if chunk.Offset+int64Size > int64(size) {
// this chunk is truncated
int64Size = int64(size) - chunk.Offset
if int64Size > 0 {
chunks = append(chunks, chunk)
glog.V(4).Infof("truncated chunk %+v from %d to %d\n", chunk.GetFileIdString(), chunk.Size, int64Size)
chunk.Size = uint64(int64Size)
} else {
glog.V(4).Infof("truncated whole chunk %+v\n", chunk.GetFileIdString())
truncatedChunks = append(truncatedChunks, chunk)
}
}
}
// set the new chunks and reset entry cache
entry.Chunks = chunks
if fh != nil {
fh.entryViewCache = nil
}
}
entry.Attributes.Mtime = time.Now().Unix()
entry.Attributes.FileSize = size
}
if mode, ok := input.GetMode(); ok {
entry.Attributes.FileMode = uint32(mode)
}
@@ -54,6 +85,11 @@ func (wfs *WFS) SetAttr(cancel <-chan struct{}, input *fuse.SetAttrIn, out *fuse
out.AttrValid = 1
wfs.setAttrByPbEntry(&out.Attr, input.NodeId, entry)
if fh != nil {
fh.dirtyMetadata = true
return fuse.OK
}
return wfs.saveEntry(path, entry)
}