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return written bytes, add debug mode

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git-svn-id: https://weed-fs.googlecode.com/svn/trunk@22 282b0af5-e82d-9cf1-ede4-77906d7719d0
This commit is contained in:
chris.lu@gmail.com 2011-12-24 01:25:22 +00:00
parent cc8af2e7dc
commit cf7094f3c9
4 changed files with 19 additions and 11 deletions
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10
weed-fs/src/cmd/weedc.go
View file

@ -18,6 +18,7 @@ var (
chunkCount = flag.Int("chunks", 5, "data chunks to store files")
publicServer = flag.String("pserver", "localhost:8080", "public server to serve data read")
metaServer = flag.String("mserver", "localhost:9333", "metadata server to store mappings")
IsDebug = flag.Bool("debug", false, "enable debug mode")
store *storage.Store
)
@ -52,6 +53,9 @@ func GetHandler(w http.ResponseWriter, r *http.Request) {
volumeId, _ := strconv.Atoui64(path[sepIndex+1 : commaIndex])
n.ParsePath(fid)
if *IsDebug {
log.Println("volume", volumeId, "reading", n)
}
store.Read(volumeId, n)
if dotIndex > 0 {
ext := path[dotIndex:]
@ -67,8 +71,10 @@ func PostHandler(w http.ResponseWriter, r *http.Request) {
if e != nil {
writeJson(w, r, e)
} else {
store.Write(volumeId, storage.NewNeedle(r))
writeJson(w, r, make(map[string]string))
ret := store.Write(volumeId, storage.NewNeedle(r))
m := make(map[string]uint32)
m["size"] = ret
writeJson(w, r, m)
}
}
func DeleteHandler(w http.ResponseWriter, r *http.Request) {

3
weed-fs/src/pkg/storage/needle.go
View file

@ -47,7 +47,7 @@ func (n *Needle) ParsePath(fid string) {
}
n.Key, n.Cookie = ParseKeyHash(fid)
}
func (n *Needle) Append(w io.Writer) {
func (n *Needle) Append(w io.Writer) (uint32){
header := make([]byte, 16)
Uint32toBytes(header[0:4], n.Cookie)
Uint64toBytes(header[4:12], n.Key)
@ -58,6 +58,7 @@ func (n *Needle) Append(w io.Writer) {
rest := 8 - ((n.Size + 16 + 4) % 8)
Uint32toBytes(header[0:4], uint32(n.Checksum))
w.Write(header[0 : rest+4])
return n.Size
}
func (n *Needle) Read(r io.Reader, size uint32) {
bytes := make([]byte, size+16+4)

4
weed-fs/src/pkg/storage/store.go
View file

@ -83,8 +83,8 @@ func (s *Store) Close() {
v.Close()
}
}
func (s *Store) Write(i uint64, n *Needle) {
s.volumes[i].write(n)
func (s *Store) Write(i uint64, n *Needle) (uint32){
return s.volumes[i].write(n)
}
func (s *Store) Read(i uint64, n *Needle) {
s.volumes[i].read(n)

5
weed-fs/src/pkg/storage/volume.go
View file

@ -48,15 +48,16 @@ func (v *Volume) Close() {
v.dataFile.Close()
}
func (v *Volume) write(n *Needle) {
func (v *Volume) write(n *Needle) uint32{
counter := <-v.accessChannel
offset, _ := v.dataFile.Seek(0, 2)
n.Append(v.dataFile)
ret := n.Append(v.dataFile)
nv, ok := v.nm.get(n.Key)
if !ok || int64(nv.Offset)*8 < offset {
v.nm.put(n.Key, uint32(offset/8), n.Size)
}
v.accessChannel <- counter + 1
return ret
}
func (v *Volume) read(n *Needle) {
counter := <-v.accessChannel