mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-19 01:40:15 +02:00
95 lines
2.6 KiB
Go
95 lines
2.6 KiB
Go
package mount
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"github.com/seaweedfs/seaweedfs/weed/mount/page_writer"
|
|
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
|
|
"io"
|
|
"sync"
|
|
)
|
|
|
|
type ChunkedDirtyPages struct {
|
|
fh *FileHandle
|
|
writeWaitGroup sync.WaitGroup
|
|
lastErr error
|
|
collection string
|
|
replication string
|
|
uploadPipeline *page_writer.UploadPipeline
|
|
hasWrites bool
|
|
}
|
|
|
|
var (
|
|
_ = page_writer.DirtyPages(&ChunkedDirtyPages{})
|
|
)
|
|
|
|
func newMemoryChunkPages(fh *FileHandle, chunkSize int64) *ChunkedDirtyPages {
|
|
|
|
dirtyPages := &ChunkedDirtyPages{
|
|
fh: fh,
|
|
}
|
|
|
|
swapFileDir := fh.wfs.option.getUniqueCacheDirForWrite()
|
|
|
|
dirtyPages.uploadPipeline = page_writer.NewUploadPipeline(fh.wfs.concurrentWriters, chunkSize,
|
|
dirtyPages.saveChunkedFileIntervalToStorage, fh.wfs.option.ConcurrentWriters, swapFileDir)
|
|
|
|
return dirtyPages
|
|
}
|
|
|
|
func (pages *ChunkedDirtyPages) AddPage(offset int64, data []byte, isSequential bool, tsNs int64) {
|
|
pages.hasWrites = true
|
|
|
|
glog.V(4).Infof("%v memory AddPage [%d, %d)", pages.fh.fh, offset, offset+int64(len(data)))
|
|
pages.uploadPipeline.SaveDataAt(data, offset, isSequential, tsNs)
|
|
|
|
return
|
|
}
|
|
|
|
func (pages *ChunkedDirtyPages) FlushData() error {
|
|
if !pages.hasWrites {
|
|
return nil
|
|
}
|
|
pages.uploadPipeline.FlushAll()
|
|
if pages.lastErr != nil {
|
|
return fmt.Errorf("flush data: %v", pages.lastErr)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (pages *ChunkedDirtyPages) ReadDirtyDataAt(data []byte, startOffset int64, tsNs int64) (maxStop int64) {
|
|
if !pages.hasWrites {
|
|
return
|
|
}
|
|
return pages.uploadPipeline.MaybeReadDataAt(data, startOffset, tsNs)
|
|
}
|
|
|
|
func (pages *ChunkedDirtyPages) saveChunkedFileIntervalToStorage(reader io.Reader, offset int64, size int64, modifiedTsNs int64, cleanupFn func()) {
|
|
|
|
defer cleanupFn()
|
|
|
|
fileFullPath := pages.fh.FullPath()
|
|
fileName := fileFullPath.Name()
|
|
chunk, err := pages.fh.wfs.saveDataAsChunk(fileFullPath)(reader, fileName, offset, modifiedTsNs)
|
|
if err != nil {
|
|
glog.V(0).Infof("%v saveToStorage [%d,%d): %v", fileFullPath, offset, offset+size, err)
|
|
pages.lastErr = err
|
|
return
|
|
}
|
|
pages.fh.AddChunks([]*filer_pb.FileChunk{chunk})
|
|
pages.fh.entryChunkGroup.AddChunk(chunk)
|
|
glog.V(3).Infof("%v saveToStorage %s [%d,%d)", fileFullPath, chunk.FileId, offset, offset+size)
|
|
|
|
}
|
|
|
|
func (pages ChunkedDirtyPages) Destroy() {
|
|
pages.uploadPipeline.Shutdown()
|
|
}
|
|
|
|
func (pages *ChunkedDirtyPages) LockForRead(startOffset, stopOffset int64) {
|
|
pages.uploadPipeline.LockForRead(startOffset, stopOffset)
|
|
}
|
|
func (pages *ChunkedDirtyPages) UnlockForRead(startOffset, stopOffset int64) {
|
|
pages.uploadPipeline.UnlockForRead(startOffset, stopOffset)
|
|
}
|