d4566d4aaa
* compare chunks by timestamp * fix slab clearing error * fix test compilation * move oldest chunk to sealed, instead of by fullness * lock on fh.entryViewCache * remove verbose logs * revert slat clearing * less logs * less logs * track write and read by timestamp * remove useless logic * add entry lock on file handle release * use mem chunk only, swap file chunk has problems * comment out code that maybe used later * add debug mode to compare data read and write * more efficient readResolvedChunks with linked list * small optimization * fix test compilation * minor fix on writer * add SeparateGarbageChunks * group chunks into sections * turn off debug mode * fix tests * fix tests * tmp enable swap file chunk * Revert "tmp enable swap file chunk" This reverts commit 985137ec472924e4815f258189f6ca9f2168a0a7. * simple refactoring * simple refactoring * do not re-use swap file chunk. Sealed chunks should not be re-used. * comment out debugging facilities * either mem chunk or swap file chunk is fine now * remove orderedMutex as *semaphore.Weighted not found impactful * optimize size calculation for changing large files * optimize performance to avoid going through the long list of chunks * still problems with swap file chunk * rename * tiny optimization * swap file chunk save only successfully read data * fix * enable both mem and swap file chunk * resolve chunks with range * rename * fix chunk interval list * also change file handle chunk group when adding chunks * pick in-active chunk with time-decayed counter * fix compilation * avoid nil with empty fh.entry * refactoring * rename * rename * refactor visible intervals to *list.List * refactor chunkViews to *list.List * add IntervalList for generic interval list * change visible interval to use IntervalList in generics * cahnge chunkViews to *IntervalList[*ChunkView] * use NewFileChunkSection to create * rename variables * refactor * fix renaming leftover * renaming * renaming * add insert interval * interval list adds lock * incrementally add chunks to readers Fixes: 1. set start and stop offset for the value object 2. clone the value object 3. use pointer instead of copy-by-value when passing to interval.Value 4. use insert interval since adding chunk could be out of order * fix tests compilation * fix tests compilation
91 lines
1.8 KiB
Go
91 lines
1.8 KiB
Go
package mount
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import (
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"sync"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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)
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type FileHandleToInode struct {
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sync.RWMutex
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nextFh FileHandleId
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inode2fh map[uint64]*FileHandle
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fh2inode map[FileHandleId]uint64
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}
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func NewFileHandleToInode() *FileHandleToInode {
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return &FileHandleToInode{
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inode2fh: make(map[uint64]*FileHandle),
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fh2inode: make(map[FileHandleId]uint64),
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nextFh: 0,
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}
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}
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func (i *FileHandleToInode) GetFileHandle(fh FileHandleId) *FileHandle {
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i.RLock()
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defer i.RUnlock()
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inode, found := i.fh2inode[fh]
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if found {
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return i.inode2fh[inode]
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}
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return nil
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}
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func (i *FileHandleToInode) FindFileHandle(inode uint64) (fh *FileHandle, found bool) {
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i.RLock()
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defer i.RUnlock()
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fh, found = i.inode2fh[inode]
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return
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}
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func (i *FileHandleToInode) AcquireFileHandle(wfs *WFS, inode uint64, entry *filer_pb.Entry) *FileHandle {
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i.Lock()
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defer i.Unlock()
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fh, found := i.inode2fh[inode]
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if !found {
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fh = newFileHandle(wfs, i.nextFh, inode, entry)
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i.nextFh++
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i.inode2fh[inode] = fh
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i.fh2inode[fh.fh] = inode
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} else {
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fh.counter++
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}
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if fh.GetEntry() != entry {
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fh.SetEntry(entry)
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}
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return fh
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}
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func (i *FileHandleToInode) ReleaseByInode(inode uint64) {
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i.Lock()
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defer i.Unlock()
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fh, found := i.inode2fh[inode]
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if found {
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fh.counter--
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if fh.counter <= 0 {
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delete(i.inode2fh, inode)
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delete(i.fh2inode, fh.fh)
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fh.ReleaseHandle()
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}
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}
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}
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func (i *FileHandleToInode) ReleaseByHandle(fh FileHandleId) {
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i.Lock()
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defer i.Unlock()
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inode, found := i.fh2inode[fh]
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if found {
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fhHandle, fhFound := i.inode2fh[inode]
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if !fhFound {
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delete(i.fh2inode, fh)
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} else {
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fhHandle.counter--
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if fhHandle.counter <= 0 {
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delete(i.inode2fh, inode)
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delete(i.fh2inode, fhHandle.fh)
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fhHandle.ReleaseHandle()
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}
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}
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}
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}
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