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compare read file size with in-memory file size

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This commit is contained in:
Chris Lu 2013-01-02 15:39:55 -08:00
parent c35fe9d631
commit 3c8dd8592a
2 changed files with 14 additions and 1 deletions
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13
weed-fs/src/pkg/storage/needle_read_write.go
View file

@ -5,6 +5,7 @@ import (
"io"
"os"
"pkg/util"
"fmt"
)
func (n *Needle) Append(w io.Writer, version Version) uint32 {
@ -72,9 +73,21 @@ func (n *Needle) Read(r io.Reader, size uint32, version Version) (int, error) {
}
return ret, e
} else if version == Version2 {
if size == 0 {
return 0, nil
}
bytes := make([]byte, NeedleHeaderSize+size+NeedleChecksumSize)
ret, e := r.Read(bytes)
if e != nil {
return 0, e
}
if ret != int(NeedleHeaderSize+size+NeedleChecksumSize) {
return 0, errors.New("File Entry Not Found!")
}
n.readNeedleHeader(bytes)
if n.Size != size {
return 0, fmt.Errorf("File Entry Not Found! Needle %d Memory %d", n.Size, size)
}
n.readNeedleDataVersion2(bytes[NeedleHeaderSize : NeedleHeaderSize+int(n.Size)])
checksum := util.BytesToUint32(bytes[NeedleHeaderSize+n.Size : NeedleHeaderSize+n.Size+NeedleChecksumSize])
if checksum != NewCRC(n.Data).Value() {

2
weed-fs/src/pkg/storage/volume.go
View file

@ -116,7 +116,7 @@ func (v *Volume) delete(n *Needle) uint32 {
v.accessLock.Lock()
defer v.accessLock.Unlock()
nv, ok := v.nm.Get(n.Id)
//log.Println("key", n.Id, "volume offset", nv.Offset, "data_size", n.Size, "cached size", nv.Size)
//fmt.Println("key", n.Id, "volume offset", nv.Offset, "data_size", n.Size, "cached size", nv.Size)
if ok {
v.nm.Delete(n.Id)
v.dataFile.Seek(int64(nv.Offset*NeedlePaddingSize), 0)