mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-21 10:52:16 +02:00
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
103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
package mount
|
|
|
|
import (
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/hanwen/go-fuse/v2/fuse"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
)
|
|
|
|
// CopyFileRange copies data from one file to another from and to specified offsets.
|
|
//
|
|
// See https://man7.org/linux/man-pages/man2/copy_file_range.2.html
|
|
// See https://github.com/libfuse/libfuse/commit/fe4f9428fc403fa8b99051f52d84ea5bd13f3855
|
|
/**
|
|
* Copy a range of data from one file to another
|
|
*
|
|
* Niels de Vos: • libfuse: add copy_file_range() support
|
|
*
|
|
* Performs an optimized copy between two file descriptors without the
|
|
* additional cost of transferring data through the FUSE kernel module
|
|
* to user space (glibc) and then back into the FUSE filesystem again.
|
|
*
|
|
* In case this method is not implemented, applications are expected to
|
|
* fall back to a regular file copy. (Some glibc versions did this
|
|
* emulation automatically, but the emulation has been removed from all
|
|
* glibc release branches.)
|
|
*/
|
|
func (wfs *WFS) CopyFileRange(cancel <-chan struct{}, in *fuse.CopyFileRangeIn) (written uint32, code fuse.Status) {
|
|
// flags must equal 0 for this syscall as of now
|
|
if in.Flags != 0 {
|
|
return 0, fuse.EINVAL
|
|
}
|
|
|
|
// files must exist
|
|
fhOut := wfs.GetHandle(FileHandleId(in.FhOut))
|
|
if fhOut == nil {
|
|
return 0, fuse.EBADF
|
|
}
|
|
fhIn := wfs.GetHandle(FileHandleId(in.FhIn))
|
|
if fhIn == nil {
|
|
return 0, fuse.EBADF
|
|
}
|
|
|
|
// lock source and target file handles
|
|
fhOut.Lock()
|
|
defer fhOut.Unlock()
|
|
fhOut.entryLock.Lock()
|
|
defer fhOut.entryLock.Unlock()
|
|
|
|
if fhOut.entry == nil {
|
|
return 0, fuse.ENOENT
|
|
}
|
|
|
|
if fhIn.fh != fhOut.fh {
|
|
fhIn.Lock()
|
|
defer fhIn.Unlock()
|
|
fhIn.entryLock.Lock()
|
|
defer fhIn.entryLock.Unlock()
|
|
}
|
|
|
|
// directories are not supported
|
|
if fhIn.entry.IsDirectory || fhOut.entry.IsDirectory {
|
|
return 0, fuse.EISDIR
|
|
}
|
|
|
|
glog.V(4).Infof(
|
|
"CopyFileRange %s fhIn %d -> %s fhOut %d, [%d,%d) -> [%d,%d)",
|
|
fhIn.FullPath(), fhIn.fh,
|
|
fhOut.FullPath(), fhOut.fh,
|
|
in.OffIn, in.OffIn+in.Len,
|
|
in.OffOut, in.OffOut+in.Len,
|
|
)
|
|
|
|
data := make([]byte, in.Len)
|
|
totalRead, err := readDataByFileHandle(data, fhIn, int64(in.OffIn))
|
|
if err != nil {
|
|
glog.Warningf("file handle read %s %d: %v", fhIn.FullPath(), totalRead, err)
|
|
return 0, fuse.EIO
|
|
}
|
|
data = data[:totalRead]
|
|
|
|
if totalRead == 0 {
|
|
return 0, fuse.OK
|
|
}
|
|
|
|
// put data at the specified offset in target file
|
|
fhOut.dirtyPages.writerPattern.MonitorWriteAt(int64(in.OffOut), int(in.Len))
|
|
fhOut.entry.Content = nil
|
|
fhOut.dirtyPages.AddPage(int64(in.OffOut), data, fhOut.dirtyPages.writerPattern.IsSequentialMode(), time.Now().UnixNano())
|
|
fhOut.entry.Attributes.FileSize = uint64(max(int64(in.OffOut)+totalRead, int64(fhOut.entry.Attributes.FileSize)))
|
|
fhOut.dirtyMetadata = true
|
|
written = uint32(totalRead)
|
|
|
|
// detect mime type
|
|
if written > 0 && in.OffOut <= 512 {
|
|
fhOut.contentType = http.DetectContentType(data)
|
|
}
|
|
|
|
return written, fuse.OK
|
|
}
|