gsh-digital-services/seaweedFS
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reuse buffer by sync pool

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This commit is contained in:
Chris Lu
2018-12-28 03:27:48 -08:00
parent 9123d799b8
commit 308ac1d0d2
3 changed files with 24 additions and 25 deletions
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17
weed/filesys/wfs.go
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@@ -39,6 +39,7 @@ type WFS struct {
handles []*FileHandle
pathToHandleIndex map[string]int
pathToHandleLock sync.Mutex
bufPool sync.Pool
stats statsCache
}
@@ -52,6 +53,11 @@ func NewSeaweedFileSystem(option *Option) *WFS {
option: option,
listDirectoryEntriesCache: ccache.New(ccache.Configure().MaxSize(int64(option.DirListingLimit) + 200).ItemsToPrune(100)),
pathToHandleIndex: make(map[string]int),
bufPool: sync.Pool{
New: func() interface{} {
return make([]byte, option.ChunkSizeLimit)
},
},
}
}
@@ -76,17 +82,10 @@ func (wfs *WFS) AcquireHandle(file *File, uid, gid uint32) (fileHandle *FileHand
index, found := wfs.pathToHandleIndex[fullpath]
if found && wfs.handles[index] != nil {
glog.V(4).Infoln(fullpath, "found fileHandle id", index)
glog.V(2).Infoln(fullpath, "found fileHandle id", index)
return wfs.handles[index]
}
if found && wfs.handles[index] != nil {
glog.V(4).Infoln(fullpath, "reuse previous fileHandle id", index)
wfs.handles[index].InitializeToFile(file, uid, gid)
fileHandle.handle = uint64(index)
return
}
fileHandle = newFileHandle(file, uid, gid)
for i, h := range wfs.handles {
if h == nil {
@@ -100,7 +99,7 @@ func (wfs *WFS) AcquireHandle(file *File, uid, gid uint32) (fileHandle *FileHand
wfs.handles = append(wfs.handles, fileHandle)
fileHandle.handle = uint64(len(wfs.handles) - 1)
glog.V(4).Infoln(fullpath, "new fileHandle id", fileHandle.handle)
glog.V(2).Infoln(fullpath, "new fileHandle id", fileHandle.handle)
wfs.pathToHandleIndex[fullpath] = int(fileHandle.handle)
return