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compatible with Go1

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git-svn-id: https://weed-fs.googlecode.com/svn/trunk@46 282b0af5-e82d-9cf1-ede4-77906d7719d0
This commit is contained in:
chris.lu@gmail.com 2012-06-29 07:53:47 +00:00
parent 8edf12f026
commit bb01324482
17 changed files with 148 additions and 693 deletions
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19
weed-fs/build
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@ -1,19 +0,0 @@
# Build script generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
echo "Build script generated by gb: http://go-gb.googlecode.com"
if [ "$1" = "goinstall" ]; then
echo Running goinstall \
else
echo Building \
&& echo "(in src/pkg/util)" gomake $1 && cd src/pkg/util && gomake $1 && cd - > /dev/null \
&& echo "(in src/pkg/storage)" gomake $1 && cd src/pkg/storage && gomake $1 && cd - > /dev/null \
&& echo "(in src/cmd/weedvolume/fix_volume_index)" gomake $1 && cd src/cmd/weedvolume/fix_volume_index && gomake $1 && cd - > /dev/null \
&& echo "(in src/cmd/weedvolume)" gomake $1 && cd src/cmd/weedvolume && gomake $1 && cd - > /dev/null \
&& echo "(in src/pkg/directory)" gomake $1 && cd src/pkg/directory && gomake $1 && cd - > /dev/null \
&& echo "(in src/cmd/weedmaster)" gomake $1 && cd src/cmd/weedmaster && gomake $1 && cd - > /dev/null \
fi
# The makefiles above are invoked in topological dependence order

39
weed-fs/src/cmd/weedmaster/Makefile
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@ -1,39 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=weedmaster
GOFILES=\
weedmaster.go\
# gb: this is the local install
GBROOT=../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: default target is in GBROOT this way
command:
include $(GOROOT)/src/Make.cmd
# gb: copy to local install
$(GBROOT)/bin/$(TARG): $(TARG)
mkdir -p $(dir $@); cp -f $< $@
command: $(GBROOT)/bin/$(TARG)
# gb: local dependencies
$(TARG): $(GBROOT)/_obj/storage.a
$(TARG): $(GBROOT)/_obj/directory.a

90
weed-fs/src/cmd/weedmaster/weedmaster.go
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@ -1,90 +0,0 @@
package main
import (
"storage"
"directory"
"flag"
"fmt"
"http"
"json"
"log"
"strconv"
"strings"
)
var (
port = flag.Int("port", 9333, "http listen port")
metaFolder = flag.String("mdir", "/tmp", "data directory to store mappings")
capacity = flag.Int("capacity", 100, "maximum number of volumes to hold")
mapper *directory.Mapper
IsDebug = flag.Bool("debug", false, "verbose debug information")
volumeSizeLimitMB = flag.Uint("volumeSizeLimitMB", 32*1024, "Default Volume Size in MegaBytes")
)
func dirLookupHandler(w http.ResponseWriter, r *http.Request) {
vid := r.FormValue("volumeId")
commaSep := strings.Index(vid, ",")
if commaSep > 0 {
vid = vid[0:commaSep]
}
volumeId, _ := strconv.Atoui64(vid)
machine, e := mapper.Get(uint32(volumeId))
if e == nil {
writeJson(w, r, machine.Server)
} else {
log.Println("Invalid volume id", volumeId)
writeJson(w, r, map[string]string{"error": "volume id " + strconv.Uitoa64(volumeId) + " not found"})
}
}
func dirAssignHandler(w http.ResponseWriter, r *http.Request) {
fid, machine, err := mapper.PickForWrite()
if err == nil {
writeJson(w, r, map[string]string{"fid": fid, "url": machine.Url})
} else {
log.Println(err)
writeJson(w, r, map[string]string{"error": err.String()})
}
}
func dirJoinHandler(w http.ResponseWriter, r *http.Request) {
s := r.RemoteAddr[0:strings.Index(r.RemoteAddr, ":")+1] + r.FormValue("port")
publicUrl := r.FormValue("publicUrl")
volumes := new([]storage.VolumeInfo)
json.Unmarshal([]byte(r.FormValue("volumes")), volumes)
if *IsDebug {
log.Println(s, "volumes", r.FormValue("volumes"))
}
mapper.Add(*directory.NewMachine(s, publicUrl, *volumes))
}
func dirStatusHandler(w http.ResponseWriter, r *http.Request) {
writeJson(w, r, mapper)
}
func writeJson(w http.ResponseWriter, r *http.Request, obj interface{}) {
w.Header().Set("Content-Type", "application/javascript")
bytes, _ := json.Marshal(obj)
callback := r.FormValue("callback")
if callback == "" {
w.Write(bytes)
} else {
w.Write([]uint8(callback))
w.Write([]uint8("("))
fmt.Fprint(w, string(bytes))
w.Write([]uint8(")"))
}
}
func main() {
flag.Parse()
log.Println("Volume Size Limit is", *volumeSizeLimitMB, "MB")
mapper = directory.NewMapper(*metaFolder, "directory", uint64(*volumeSizeLimitMB)*1024*1024)
http.HandleFunc("/dir/assign", dirAssignHandler)
http.HandleFunc("/dir/lookup", dirLookupHandler)
http.HandleFunc("/dir/join", dirJoinHandler)
http.HandleFunc("/dir/status", dirStatusHandler)
log.Println("Start directory service at http://127.0.0.1:" + strconv.Itoa(*port))
e := http.ListenAndServe(":"+strconv.Itoa(*port), nil)
if e != nil {
log.Fatalf("Fail to start:", e.String())
}
}

37
weed-fs/src/cmd/weedvolume/Makefile
View File

@ -1,37 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=weedvolume
GOFILES=\
weedvolume.go\
# gb: this is the local install
GBROOT=../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: default target is in GBROOT this way
command:
include $(GOROOT)/src/Make.cmd
# gb: copy to local install
$(GBROOT)/bin/$(TARG): $(TARG)
mkdir -p $(dir $@); cp -f $< $@
command: $(GBROOT)/bin/$(TARG)
# gb: local dependencies
$(TARG): $(GBROOT)/_obj/storage.a

37
weed-fs/src/cmd/weedvolume/fix_volume_index/Makefile
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@ -1,37 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=fix_volume_index
GOFILES=\
fix_volume_index.go\
# gb: this is the local install
GBROOT=../../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: default target is in GBROOT this way
command:
include $(GOROOT)/src/Make.cmd
# gb: copy to local install
$(GBROOT)/bin/$(TARG): $(TARG)
mkdir -p $(dir $@); cp -f $< $@
command: $(GBROOT)/bin/$(TARG)
# gb: local dependencies
$(TARG): $(GBROOT)/_obj/storage.a

59
weed-fs/src/cmd/weedvolume/fix_volume_index/fix_volume_index.go
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@ -1,59 +0,0 @@
package main
import (
"storage"
"flag"
"log"
"os"
"path"
"strconv"
)
var (
dir = flag.String("dir", "/tmp", "data directory to store files")
volumeId = flag.Int("volumeId", -1, "a non-negative volume id. The volume should already exist in the dir. The volume index file should not exist.")
IsDebug = flag.Bool("debug", false, "enable debug mode")
store *storage.Store
)
func main() {
flag.Parse()
if *volumeId == -1 {
flag.Usage()
return
}
fileName := strconv.Itoa(*volumeId)
dataFile, e := os.OpenFile(path.Join(*dir, fileName+".dat"), os.O_RDONLY, 0644)
if e != nil {
log.Fatalf("Read Volume [ERROR] %s\n", e)
}
defer dataFile.Close()
indexFile, ie := os.OpenFile(path.Join(*dir, fileName+".idx"), os.O_WRONLY|os.O_CREATE, 0644)
if ie != nil {
log.Fatalf("Create Volume Index [ERROR] %s\n", ie)
}
defer indexFile.Close()
//skip the volume super block
dataFile.Seek(storage.SuperBlockSize, 0)
n, length := storage.ReadNeedle(dataFile)
nm := storage.NewNeedleMap(indexFile)
offset := uint32(storage.SuperBlockSize)
for n != nil {
if *IsDebug {
log.Println("key", n.Key, "volume offset", offset, "data_size", n.Size, "length", length)
}
if n.Size > 0 {
count, pe := nm.Put(n.Key, offset/8, n.Size)
if *IsDebug {
log.Println("saved", count, "with error", pe)
}
}
offset += length
n, length = storage.ReadNeedle(dataFile)
}
}

168
weed-fs/src/cmd/weedvolume/weedvolume.go
View File

@ -1,168 +0,0 @@
package main
import (
"storage"
"flag"
"fmt"
"http"
"json"
"log"
"mime"
"rand"
"strconv"
"strings"
"time"
)
var (
port = flag.Int("port", 8080, "http listen port")
chunkFolder = flag.String("dir", "/tmp", "data directory to store files")
volumes = flag.String("volumes", "0,1-3,4", "comma-separated list of volume ids or range of ids")
publicUrl = flag.String("publicUrl", "localhost:8080", "public url to serve data read")
metaServer = flag.String("mserver", "localhost:9333", "master directory server to store mappings")
IsDebug = flag.Bool("debug", false, "enable debug mode")
pulse = flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
store *storage.Store
)
func statusHandler(w http.ResponseWriter, r *http.Request) {
writeJson(w, r, store.Status())
}
func addVolumeHandler(w http.ResponseWriter, r *http.Request) {
store.AddVolume(r.FormValue("volume"))
writeJson(w, r, store.Status())
}
func storeHandler(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "GET":
GetHandler(w, r)
case "DELETE":
DeleteHandler(w, r)
case "POST":
PostHandler(w, r)
}
}
func GetHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, ext := parseURLPath(r.URL.Path)
volumeId, _ := strconv.Atoui64(vid)
n.ParsePath(fid)
if *IsDebug {
log.Println("volume", volumeId, "reading", n)
}
cookie := n.Cookie
count, e := store.Read(volumeId, n)
if *IsDebug {
log.Println("read bytes", count, "error", e)
}
if n.Cookie != cookie {
log.Println("request with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
return
}
if ext != "" {
w.Header().Set("Content-Type", mime.TypeByExtension(ext))
}
w.Write(n.Data)
}
func PostHandler(w http.ResponseWriter, r *http.Request) {
vid, _, _ := parseURLPath(r.URL.Path)
volumeId, e := strconv.Atoui64(vid)
if e != nil {
writeJson(w, r, e)
} else {
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) {
n := new(storage.Needle)
vid, fid, _ := parseURLPath(r.URL.Path)
volumeId, _ := strconv.Atoui64(vid)
n.ParsePath(fid)
if *IsDebug {
log.Println("deleting", n)
}
cookie := n.Cookie
count, ok := store.Read(volumeId, n)
if ok!=nil {
m := make(map[string]uint32)
m["size"] = 0
writeJson(w, r, m)
return
}
if n.Cookie != cookie {
log.Println("delete with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
return
}
n.Size = 0
store.Delete(volumeId, n)
m := make(map[string]uint32)
m["size"] = uint32(count)
writeJson(w, r, m)
}
func writeJson(w http.ResponseWriter, r *http.Request, obj interface{}) {
w.Header().Set("Content-Type", "application/javascript")
bytes, _ := json.Marshal(obj)
callback := r.FormValue("callback")
if callback == "" {
w.Write(bytes)
} else {
w.Write([]uint8(callback))
w.Write([]uint8("("))
fmt.Fprint(w, string(bytes))
w.Write([]uint8(")"))
}
//log.Println("JSON Response", string(bytes))
}
func parseURLPath(path string) (vid, fid, ext string) {
sepIndex := strings.LastIndex(path, "/")
commaIndex := strings.LastIndex(path[sepIndex:], ",")
if commaIndex <= 0 {
log.Println("unknown file id", path[sepIndex+1:])
return
}
dotIndex := strings.LastIndex(path[sepIndex:], ".")
vid = path[sepIndex+1 : commaIndex]
fid = path[commaIndex+1:]
ext = ""
if dotIndex > 0 {
fid = path[commaIndex+1 : dotIndex]
ext = path[dotIndex+1:]
}
return
}
func main() {
flag.Parse()
//TODO: now default to 1G, this value should come from server?
store = storage.NewStore(*port, *publicUrl, *chunkFolder, *volumes)
defer store.Close()
http.HandleFunc("/", storeHandler)
http.HandleFunc("/status", statusHandler)
http.HandleFunc("/add_volume", addVolumeHandler)
go func() {
for {
store.Join(*metaServer)
ns := int64(*pulse) * 1e9
time.Sleep(ns + rand.Int63()%ns)
}
}()
log.Println("store joined at", *metaServer)
log.Println("Start storage service at http://127.0.0.1:"+strconv.Itoa(*port), "public url", *publicUrl)
e := http.ListenAndServe(":"+strconv.Itoa(*port), nil)
if e != nil {
log.Fatalf("Fail to start:", e.String())
}
}

36
weed-fs/src/pkg/directory/Makefile
View File

@ -1,36 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=directory
GOFILES=\
file_id.go\
volume_mapping.go\
# gb: this is the local install
GBROOT=../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: copy to local install
$(GBROOT)/_obj/$(TARG).a: _obj/$(TARG).a
mkdir -p $(dir $@); cp -f $< $@
package: $(GBROOT)/_obj/$(TARG).a
include $(GOROOT)/src/Make.pkg
# gb: local dependencies
_obj/$(TARG).a: $(GBROOT)/_obj/storage.a
_obj/$(TARG).a: $(GBROOT)/_obj/util.a

12
weed-fs/src/pkg/directory/file_id.go
View File

@ -3,10 +3,10 @@ package directory
import (
"encoding/hex"
"log"
"storage"
"pkg/storage"
"strconv"
"strings"
"util"
"pkg/util"
)
type FileId struct {
@ -18,14 +18,14 @@ type FileId struct {
func NewFileId(VolumeId uint32, Key uint64, Hashcode uint32) *FileId {
return &FileId{VolumeId: VolumeId, Key: Key, Hashcode: Hashcode}
}
func ParseFileId(fid string) *FileId {
func ParseFileId(fid string) *FileId{
a := strings.Split(fid, ",")
if len(a) != 2 {
log.Println("Invalid fid", fid, ", split length", len(a))
log.Println("Invalid fid", fid, ", split length", len(a))
return nil
}
vid_string, key_hash_string := a[0], a[1]
vid, _ := strconv.Atoui64(vid_string)
vid, _ := strconv.ParseUint(vid_string, 10, 64)
key, hash := storage.ParseKeyHash(key_hash_string)
return &FileId{VolumeId: uint32(vid), Key: key, Hashcode: hash}
}
@ -36,5 +36,5 @@ func (n *FileId) String() string {
nonzero_index := 0
for ; bytes[nonzero_index] == 0; nonzero_index++ {
}
return strconv.Uitoa64(uint64(n.VolumeId)) + "," + hex.EncodeToString(bytes[nonzero_index:])
return strconv.FormatUint(uint64(n.VolumeId), 10) + "," + hex.EncodeToString(bytes[nonzero_index:])
}

23
weed-fs/src/pkg/directory/volume_mapping.go
View File

@ -1,12 +1,13 @@
package directory
import (
"gob"
"encoding/gob"
"errors"
"log"
"math/rand"
"os"
"path"
"rand"
"log"
"storage"
"pkg/storage"
"strconv"
"sync"
)
@ -31,7 +32,7 @@ type Mapper struct {
lock sync.Mutex
Machines []*Machine
vid2machineId map[uint32]int //machineId is +1 of the index of []*Machine, to detect not found entries
Writers []uint32 // transient array of Writers volume id
Writers []uint32 // transient array of Writers volume id
FileIdSequence uint64
fileIdCounter uint64
@ -64,11 +65,11 @@ func NewMapper(dirname string, filename string, volumeSizeLimit uint64) (m *Mapp
}
return
}
func (m *Mapper) PickForWrite() (string, MachineInfo, os.Error) {
func (m *Mapper) PickForWrite() (string, MachineInfo, error) {
len_writers := len(m.Writers)
if len_writers <= 0 {
log.Println("No more writable volumes!")
return "", m.Machines[rand.Intn(len(m.Machines))].Server, os.NewError("No more writable volumes!")
return "", m.Machines[rand.Intn(len(m.Machines))].Server, errors.New("No more writable volumes!")
}
vid := m.Writers[rand.Intn(len_writers)]
machine_id := m.vid2machineId[vid]
@ -76,7 +77,7 @@ func (m *Mapper) PickForWrite() (string, MachineInfo, os.Error) {
machine := m.Machines[machine_id-1]
return NewFileId(vid, m.NextFileId(), rand.Uint32()).String(), machine.Server, nil
}
return "", m.Machines[rand.Intn(len(m.Machines))].Server, os.NewError("Strangely vid " + strconv.Uitoa64(uint64(vid)) + " is on no machine!")
return "", m.Machines[rand.Intn(len(m.Machines))].Server, errors.New("Strangely vid " + strconv.FormatUint(uint64(vid), 10) + " is on no machine!")
}
func (m *Mapper) NextFileId() uint64 {
if m.fileIdCounter <= 0 {
@ -87,16 +88,16 @@ func (m *Mapper) NextFileId() uint64 {
m.fileIdCounter--
return m.FileIdSequence - m.fileIdCounter
}
func (m *Mapper) Get(vid uint32) (*Machine, os.Error) {
func (m *Mapper) Get(vid uint32) (*Machine, error) {
machineId := m.vid2machineId[vid]
if machineId <= 0 {
return nil, os.NewError("invalid volume id " + strconv.Uitob64(uint64(vid), 10))
return nil, errors.New("invalid volume id " + strconv.FormatUint(uint64(vid), 10))
}
return m.Machines[machineId-1], nil
}
func (m *Mapper) Add(machine Machine) {
//check existing machine, linearly
//log.Println("Adding machine", machine.Server.Url)
//log.Println("Adding machine", machine.Server.Url)
m.lock.Lock()
foundExistingMachineId := -1
for index, entry := range m.Machines {

37
weed-fs/src/pkg/storage/Makefile
View File

@ -1,37 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=storage
GOFILES=\
needle.go\
needle_map.go\
store.go\
volume.go\
# gb: this is the local install
GBROOT=../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: copy to local install
$(GBROOT)/_obj/$(TARG).a: _obj/$(TARG).a
mkdir -p $(dir $@); cp -f $< $@
package: $(GBROOT)/_obj/$(TARG).a
include $(GOROOT)/src/Make.pkg
# gb: local dependencies
_obj/$(TARG).a: $(GBROOT)/_obj/util.a

75
weed-fs/src/pkg/storage/needle.go
View File

@ -1,14 +1,14 @@
package storage
import (
"encoding/hex"
"encoding/hex"
"io"
"io/ioutil"
"http"
"log"
"net/http"
"os"
"strings"
. "util"
"pkg/util"
)
type Needle struct {
@ -21,6 +21,7 @@ type Needle struct {
}
func NewNeedle(r *http.Request) (n *Needle) {
n = new(Needle)
form, fe := r.MultipartReader()
if fe != nil {
@ -30,11 +31,11 @@ func NewNeedle(r *http.Request) (n *Needle) {
data, _ := ioutil.ReadAll(part)
n.Data = data
commaSep := strings.LastIndex(r.URL.Path, ",")
commaSep := strings.LastIndex(r.URL.Path, ",")
dotSep := strings.LastIndex(r.URL.Path, ".")
fid := r.URL.Path[commaSep+1:]
if dotSep > 0 {
fid = r.URL.Path[commaSep+1:dotSep]
fid = r.URL.Path[commaSep+1 : dotSep]
}
n.ParsePath(fid)
@ -49,51 +50,51 @@ func (n *Needle) ParsePath(fid string) {
}
n.Key, n.Cookie = ParseKeyHash(fid)
}
func (n *Needle) Append(w io.Writer) (uint32){
func (n *Needle) Append(w io.Writer) uint32 {
header := make([]byte, 16)
Uint32toBytes(header[0:4], n.Cookie)
Uint64toBytes(header[4:12], n.Key)
util.Uint32toBytes(header[0:4], n.Cookie)
util.Uint64toBytes(header[4:12], n.Key)
n.Size = uint32(len(n.Data))
Uint32toBytes(header[12:16], n.Size)
util.Uint32toBytes(header[12:16], n.Size)
w.Write(header)
w.Write(n.Data)
rest := 8 - ((n.Size + 16 + 4) % 8)
Uint32toBytes(header[0:4], uint32(n.Checksum))
util.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)(int, os.Error) {
func (n *Needle) Read(r io.Reader, size uint32) (int, error) {
bytes := make([]byte, size+16+4)
ret, e := r.Read(bytes)
n.Cookie = BytesToUint32(bytes[0:4])
n.Key = BytesToUint64(bytes[4:12])
n.Size = BytesToUint32(bytes[12:16])
n.Cookie = util.BytesToUint32(bytes[0:4])
n.Key = util.BytesToUint64(bytes[4:12])
n.Size = util.BytesToUint32(bytes[12:16])
n.Data = bytes[16 : 16+size]
n.Checksum = int32(BytesToUint32(bytes[16+size : 16+size+4]))
n.Checksum = int32(util.BytesToUint32(bytes[16+size : 16+size+4]))
return ret, e
}
func ReadNeedle(r *os.File) (*Needle, uint32) {
n := new(Needle)
bytes := make([]byte, 16)
count, e := r.Read(bytes)
if count<=0 || e!=nil {
return nil, 0
}
n.Cookie = BytesToUint32(bytes[0:4])
n.Key = BytesToUint64(bytes[4:12])
n.Size = BytesToUint32(bytes[12:16])
rest := 8 - ((n.Size + 16 + 4) % 8)
r.Seek(int64(n.Size+4+rest), 1)
return n, 16+n.Size+4+rest
n := new(Needle)
bytes := make([]byte, 16)
count, e := r.Read(bytes)
if count <= 0 || e != nil {
return nil, 0
}
n.Cookie = util.BytesToUint32(bytes[0:4])
n.Key = util.BytesToUint64(bytes[4:12])
n.Size = util.BytesToUint32(bytes[12:16])
rest := 8 - ((n.Size + 16 + 4) % 8)
r.Seek(int64(n.Size+4+rest), 1)
return n, 16 + n.Size + 4 + rest
}
func ParseKeyHash(key_hash_string string)(uint64,uint32) {
key_hash_bytes, khe := hex.DecodeString(key_hash_string)
key_hash_len := len(key_hash_bytes)
if khe != nil || key_hash_len <= 4 {
log.Println("Invalid key_hash", key_hash_string, "length:", key_hash_len, "error", khe)
return 0, 0
}
key := BytesToUint64(key_hash_bytes[0 : key_hash_len-4])
hash := BytesToUint32(key_hash_bytes[key_hash_len-4 : key_hash_len])
return key, hash
func ParseKeyHash(key_hash_string string) (uint64, uint32) {
key_hash_bytes, khe := hex.DecodeString(key_hash_string)
key_hash_len := len(key_hash_bytes)
if khe != nil || key_hash_len <= 4 {
log.Println("Invalid key_hash", key_hash_string, "length:", key_hash_len, "error", khe)
return 0, 0
}
key := util.BytesToUint64(key_hash_bytes[0 : key_hash_len-4])
hash := util.BytesToUint32(key_hash_bytes[key_hash_len-4 : key_hash_len])
return key, hash
}

42
weed-fs/src/pkg/storage/needle_map.go
View File

@ -3,7 +3,7 @@ package storage
import (
"log"
"os"
. "util"
"pkg/util"
)
type NeedleValue struct {
@ -36,24 +36,30 @@ func LoadNeedleMap(file *os.File) *NeedleMap {
count, e := nm.indexFile.Read(bytes)
if count > 0 {
fstat, _ := file.Stat()
log.Println("Loading index file", fstat.Name, "size", fstat.Size)
log.Println("Loading index file", fstat.Name(), "size", fstat.Size())
}
for count > 0 && e == nil {
for i := 0; i < count; i += 16 {
key := BytesToUint64(bytes[i : i+8])
offset := BytesToUint32(bytes[i+8 : i+12])
size := BytesToUint32(bytes[i+12 : i+16])
nm.m[key] = &NeedleValue{Offset: offset, Size: size}, offset > 0
}
key := util.BytesToUint64(bytes[i : i+8])
offset := util.BytesToUint32(bytes[i+8 : i+12])
size := util.BytesToUint32(bytes[i+12 : i+16])
if offset>0 {
nm.m[key] = &NeedleValue{util.Offset: offset, Size: size}
}else{
delete(nm.m, key)
}
}
count, e = nm.indexFile.Read(bytes)
}
}
return nm
}
func (nm *NeedleMap) Put(key uint64, offset uint32, size uint32) (int, os.Error) {
nm.m[key] = &NeedleValue{Offset: offset, Size: size}
Uint64toBytes(nm.bytes[0:8], key)
Uint32toBytes(nm.bytes[8:12], offset)
Uint32toBytes(nm.bytes[12:16], size)
}
func (nm *NeedleMap) Put(key uint64, offset uint32, size uint32) (int, error) {
nm.m[key] = &NeedleValue{Offset: offset, Size: size}
util.Uint64toBytes(nm.bytes[0:8], key)
util.Uint32toBytes(nm.bytes[8:12], offset)
util.Uint32toBytes(nm.bytes[12:16], size)
return nm.indexFile.Write(nm.bytes)
}
func (nm *NeedleMap) Get(key uint64) (element *NeedleValue, ok bool) {
@ -61,10 +67,10 @@ func (nm *NeedleMap) Get(key uint64) (element *NeedleValue, ok bool) {
return
}
func (nm *NeedleMap) Delete(key uint64) {
nm.m[key] = nil, false
Uint64toBytes(nm.bytes[0:8], key)
Uint32toBytes(nm.bytes[8:12], 0)
Uint32toBytes(nm.bytes[12:16], 0)
delete(nm.m, key)
util.Uint64toBytes(nm.bytes[0:8], key)
util.Uint32toBytes(nm.bytes[8:12], 0)
util.Uint32toBytes(nm.bytes[12:16], 0)
nm.indexFile.Write(nm.bytes)
}
func (nm *NeedleMap) Close() {

86
weed-fs/src/pkg/storage/store.go
View File

@ -1,19 +1,19 @@
package storage
import (
"encoding/json"
"errors"
"log"
"json"
"os"
"strings"
"net/url"
"strconv"
"url"
"util"
"strings"
"pkg/util"
)
type Store struct {
volumes map[uint64]*Volume
dir string
Port int
volumes map[uint64]*Volume
dir string
Port int
PublicUrl string
}
type VolumeInfo struct {
@ -24,44 +24,44 @@ type VolumeInfo struct {
func NewStore(port int, publicUrl, dirname string, volumeListString string) (s *Store) {
s = &Store{Port: port, PublicUrl: publicUrl, dir: dirname}
s.volumes = make(map[uint64]*Volume)
s.AddVolume(volumeListString)
log.Println("Store started on dir:", dirname, "with", len(s.volumes), "volumes")
return
}
func (s *Store) AddVolume(volumeListString string) os.Error{
for _, range_string := range strings.Split(volumeListString, ",") {
if strings.Index(range_string, "-") < 0 {
id_string := range_string
id, err := strconv.Atoui64(id_string)
if err != nil {
return os.NewError("Volume Id " + id_string+ " is not a valid unsigned integer!")
}
s.addVolume(id)
} else {
pair := strings.Split(range_string, "-")
start, start_err := strconv.Atoui64(pair[0])
if start_err != nil {
return os.NewError("Volume Start Id" + pair[0] + " is not a valid unsigned integer!")
}
end, end_err := strconv.Atoui64(pair[1])
if end_err != nil {
return os.NewError("Volume End Id" + pair[1] + " is not a valid unsigned integer!")
}
for id := start; id<=end; id++ {
s.addVolume(id)
}
}
}
return nil
func (s *Store) AddVolume(volumeListString string) error {
for _, range_string := range strings.Split(volumeListString, ",") {
if strings.Index(range_string, "-") < 0 {
id_string := range_string
id, err := strconv.ParseUint(id_string, 10, 64)
if err != nil {
return errors.New("Volume Id " + id_string + " is not a valid unsigned integer!")
}
s.addVolume(id)
} else {
pair := strings.Split(range_string, "-")
start, start_err := strconv.ParseUint(pair[0], 10, 64)
if start_err != nil {
return errors.New("Volume Start Id" + pair[0] + " is not a valid unsigned integer!")
}
end, end_err := strconv.ParseUint(pair[1], 10, 64)
if end_err != nil {
return errors.New("Volume End Id" + pair[1] + " is not a valid unsigned integer!")
}
for id := start; id <= end; id++ {
s.addVolume(id)
}
}
}
return nil
}
func (s *Store) addVolume(vid uint64) os.Error{
if s.volumes[vid]!=nil {
return os.NewError("Volume Id "+strconv.Uitoa64(vid)+" already exists!")
}
s.volumes[vid] = NewVolume(s.dir, uint32(vid))
return nil
func (s *Store) addVolume(vid uint64) error {
if s.volumes[vid] != nil {
return errors.New("Volume Id " + strconv.FormatUint(vid, 10) + " already exists!")
}
s.volumes[vid] = NewVolume(s.dir, uint32(vid))
return nil
}
func (s *Store) Status() *[]*VolumeInfo {
stats := new([]*VolumeInfo)
@ -92,11 +92,11 @@ func (s *Store) Close() {
}
}
func (s *Store) Write(i uint64, n *Needle) uint32 {
return s.volumes[i].write(n)
return s.volumes[i].write(n)
}
func (s *Store) Delete(i uint64, n *Needle) uint32 {
return s.volumes[i].delete(n)
}
func (s *Store) Read(i uint64, n *Needle) (int, os.Error) {
func (s *Store) Read(i uint64, n *Needle) (int, error) {
return s.volumes[i].read(n)
}

15
weed-fs/src/pkg/storage/volume.go
View File

@ -1,11 +1,12 @@
package storage
import (
"io"
"log"
"os"
"path"
"strconv"
"sync"
"log"
)
const (
@ -22,9 +23,9 @@ type Volume struct {
}
func NewVolume(dirname string, id uint32) (v *Volume) {
var e os.Error
var e error
v = &Volume{dir: dirname, Id: id}
fileName := strconv.Uitoa64(uint64(v.Id))
fileName := strconv.FormatUint(uint64(v.Id), 10)
v.dataFile, e = os.OpenFile(path.Join(v.dir, fileName+".dat"), os.O_RDWR|os.O_CREATE, 0644)
if e != nil {
log.Fatalf("New Volume [ERROR] %s\n", e)
@ -41,7 +42,7 @@ func NewVolume(dirname string, id uint32) (v *Volume) {
func (v *Volume) Size() int64 {
stat, e := v.dataFile.Stat()
if e == nil {
return stat.Size
return stat.Size()
}
return -1
}
@ -51,7 +52,7 @@ func (v *Volume) Close() {
}
func (v *Volume) maybeWriteSuperBlock() {
stat, _ := v.dataFile.Stat()
if stat.Size == 0 {
if stat.Size() == 0 {
header := make([]byte, SuperBlockSize)
header[0] = 1
v.dataFile.Write(header)
@ -82,7 +83,7 @@ func (v *Volume) delete(n *Needle) uint32 {
}
return 0
}
func (v *Volume) read(n *Needle) (int, os.Error) {
func (v *Volume) read(n *Needle) (int, error) {
v.accessLock.Lock()
defer v.accessLock.Unlock()
nv, ok := v.nm.Get(n.Key)
@ -90,5 +91,5 @@ func (v *Volume) read(n *Needle) (int, os.Error) {
v.dataFile.Seek(int64(nv.Offset)*8, 0)
return n.Read(v.dataFile, nv.Size)
}
return -1, os.EOF
return -1, io.EOF
}

32
weed-fs/src/pkg/util/Makefile
View File

@ -1,32 +0,0 @@
# Makefile generated by gb: http://go-gb.googlecode.com
# gb provides configuration-free building and distributing
include $(GOROOT)/src/Make.inc
TARG=util
GOFILES=\
bytes.go\
post.go\
# gb: this is the local install
GBROOT=../../..
# gb: compile/link against local install
GCIMPORTS+= -I $(GBROOT)/_obj
LDIMPORTS+= -L $(GBROOT)/_obj
# gb: compile/link against GOPATH entries
GOPATHSEP=:
ifeq ($(GOHOSTOS),windows)
GOPATHSEP=;
endif
GCIMPORTS+=-I $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -I , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
LDIMPORTS+=-L $(subst $(GOPATHSEP),/pkg/$(GOOS)_$(GOARCH) -L , $(GOPATH))/pkg/$(GOOS)_$(GOARCH)
# gb: copy to local install
$(GBROOT)/_obj/$(TARG).a: _obj/$(TARG).a
mkdir -p $(dir $@); cp -f $< $@
package: $(GBROOT)/_obj/$(TARG).a
include $(GOROOT)/src/Make.pkg

34
weed-fs/src/pkg/util/post.go
View File

@ -1,23 +1,23 @@
package util
import (
"http"
"io/ioutil"
"url"
"log"
"io/ioutil"
"log"
"net/http"
"net/url"
)
func Post(url string, values url.Values)[]byte{
r, err := http.PostForm(url, values)
if err != nil {
log.Println("post:", err)
return nil
}
defer r.Body.Close()
b, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Println("post:", err)
return nil
}
return b
func Post(url string, values url.Values) []byte {
r, err := http.PostForm(url, values)
if err != nil {
log.Println("post:", err)
return nil
}
defer r.Body.Close()
b, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Println("post:", err)
return nil
}
return b
}