mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-29 23:05:34 +08:00
105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package filesys
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/chrislusf/seaweedfs/weed/filesys/page_writer"
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"io"
|
|
"os"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
type TempFileDirtyPages struct {
|
|
f *File
|
|
writeWaitGroup sync.WaitGroup
|
|
pageAddLock sync.Mutex
|
|
chunkAddLock sync.Mutex
|
|
lastErr error
|
|
collection string
|
|
replication string
|
|
chunkedFile *page_writer.ChunkedFileWriter
|
|
}
|
|
|
|
func newTempFileDirtyPages(file *File, chunkSize int64) *TempFileDirtyPages {
|
|
|
|
tempFile := &TempFileDirtyPages{
|
|
f: file,
|
|
chunkedFile: page_writer.NewChunkedFileWriter(file.wfs.option.getTempFilePageDir(), chunkSize),
|
|
}
|
|
|
|
return tempFile
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) AddPage(offset int64, data []byte) {
|
|
|
|
pages.pageAddLock.Lock()
|
|
defer pages.pageAddLock.Unlock()
|
|
|
|
if _, err := pages.chunkedFile.WriteAt(data, offset); err != nil {
|
|
pages.lastErr = err
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) FlushData() error {
|
|
pages.saveChunkedFileToStorage()
|
|
pages.writeWaitGroup.Wait()
|
|
if pages.lastErr != nil {
|
|
return fmt.Errorf("flush data: %v", pages.lastErr)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) ReadDirtyDataAt(data []byte, startOffset int64) (maxStop int64) {
|
|
return pages.chunkedFile.ReadDataAt(data, startOffset)
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) GetStorageOptions() (collection, replication string) {
|
|
return pages.collection, pages.replication
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) saveChunkedFileToStorage() {
|
|
|
|
pages.chunkedFile.ProcessEachInterval(func(file *os.File, logicChunkIndex page_writer.LogicChunkIndex, interval *page_writer.ChunkWrittenInterval) {
|
|
reader := page_writer.NewFileIntervalReader(pages.chunkedFile, logicChunkIndex, interval)
|
|
pages.saveChunkedFileIntevalToStorage(reader, int64(logicChunkIndex)*pages.chunkedFile.ChunkSize, interval.Size())
|
|
})
|
|
|
|
}
|
|
|
|
func (pages *TempFileDirtyPages) saveChunkedFileIntevalToStorage(reader io.Reader, offset int64, size int64) {
|
|
|
|
mtime := time.Now().UnixNano()
|
|
pages.writeWaitGroup.Add(1)
|
|
writer := func() {
|
|
defer pages.writeWaitGroup.Done()
|
|
|
|
chunk, collection, replication, err := pages.f.wfs.saveDataAsChunk(pages.f.fullpath())(reader, pages.f.Name, offset)
|
|
if err != nil {
|
|
glog.V(0).Infof("%s saveToStorage [%d,%d): %v", pages.f.fullpath(), offset, offset+size, err)
|
|
pages.lastErr = err
|
|
return
|
|
}
|
|
chunk.Mtime = mtime
|
|
pages.collection, pages.replication = collection, replication
|
|
pages.chunkAddLock.Lock()
|
|
defer pages.chunkAddLock.Unlock()
|
|
pages.f.addChunks([]*filer_pb.FileChunk{chunk})
|
|
glog.V(3).Infof("%s saveToStorage %s [%d,%d)", pages.f.fullpath(), chunk.FileId, offset, offset+size)
|
|
}
|
|
|
|
if pages.f.wfs.concurrentWriters != nil {
|
|
pages.f.wfs.concurrentWriters.Execute(writer)
|
|
} else {
|
|
go writer()
|
|
}
|
|
|
|
}
|
|
|
|
func (pages TempFileDirtyPages) Destroy() {
|
|
pages.chunkedFile.Destroy()
|
|
}
|