mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
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 985137ec47.
* 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
82 lines
1.9 KiB
Go
82 lines
1.9 KiB
Go
package mount
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import (
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"github.com/hanwen/go-fuse/v2/fuse"
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"net/http"
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"syscall"
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"time"
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)
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/**
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* Write data
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*
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* Write should return exactly the number of bytes requested
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* except on error. An exception to this is when the file has
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* been opened in 'direct_io' mode, in which case the return value
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* of the write system call will reflect the return value of this
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* operation.
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*
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* Unless FUSE_CAP_HANDLE_KILLPRIV is disabled, this method is
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* expected to reset the setuid and setgid bits.
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*
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* fi->fh will contain the value set by the open method, or will
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* be undefined if the open method didn't set any value.
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*
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* Valid replies:
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* fuse_reply_write
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* fuse_reply_err
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*
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* @param req request handle
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* @param ino the inode number
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* @param buf data to write
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* @param size number of bytes to write
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* @param off offset to write to
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* @param fi file information
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*/
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func (wfs *WFS) Write(cancel <-chan struct{}, in *fuse.WriteIn, data []byte) (written uint32, code fuse.Status) {
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if wfs.IsOverQuota {
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return 0, fuse.Status(syscall.ENOSPC)
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}
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fh := wfs.GetHandle(FileHandleId(in.Fh))
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if fh == nil {
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return 0, fuse.ENOENT
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}
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fh.dirtyPages.writerPattern.MonitorWriteAt(int64(in.Offset), int(in.Size))
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tsNs := time.Now().UnixNano()
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fh.Lock()
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defer fh.Unlock()
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entry := fh.GetEntry()
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if entry == nil {
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return 0, fuse.OK
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}
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entry.Content = nil
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offset := int64(in.Offset)
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entry.Attributes.FileSize = uint64(max(offset+int64(len(data)), int64(entry.Attributes.FileSize)))
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// glog.V(4).Infof("%v write [%d,%d) %d", fh.f.fullpath(), req.Offset, req.Offset+int64(len(req.Data)), len(req.Data))
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fh.dirtyPages.AddPage(offset, data, fh.dirtyPages.writerPattern.IsSequentialMode(), tsNs)
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written = uint32(len(data))
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if offset == 0 {
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// detect mime type
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fh.contentType = http.DetectContentType(data)
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}
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fh.dirtyMetadata = true
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if IsDebugFileReadWrite {
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// print("+")
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fh.mirrorFile.WriteAt(data, offset)
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}
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return written, fuse.OK
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}
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