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@ -9,6 +9,7 @@ import ( |
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"time" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/chrislusf/seaweedfs/weed/storage/needle" |
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. "github.com/chrislusf/seaweedfs/weed/storage/types" |
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) |
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@ -16,13 +17,13 @@ var ErrorNotFound = errors.New("not found") |
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// isFileUnchanged checks whether this needle to write is same as last one.
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// It requires serialized access in the same volume.
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func (v *Volume) isFileUnchanged(n *Needle) bool { |
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func (v *Volume) isFileUnchanged(n *needle.Needle) bool { |
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if v.Ttl.String() != "" { |
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return false |
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} |
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nv, ok := v.nm.Get(n.Id) |
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if ok && !nv.Offset.IsZero() && nv.Size != TombstoneFileSize { |
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oldNeedle := new(Needle) |
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oldNeedle := new(needle.Needle) |
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err := oldNeedle.ReadData(v.dataFile, nv.Offset.ToAcutalOffset(), nv.Size, v.Version()) |
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if err != nil { |
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glog.V(0).Infof("Failed to check updated file at offset %d size %d: %v", nv.Offset.ToAcutalOffset(), nv.Size, err) |
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@ -76,8 +77,8 @@ func (v *Volume) AppendBlob(b []byte) (offset int64, err error) { |
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return |
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} |
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func (v *Volume) writeNeedle(n *Needle) (offset uint64, size uint32, err error) { |
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glog.V(4).Infof("writing needle %s", NewFileIdFromNeedle(v.Id, n).String()) |
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func (v *Volume) writeNeedle(n *needle.Needle) (offset uint64, size uint32, err error) { |
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glog.V(4).Infof("writing needle %s", needle.NewFileIdFromNeedle(v.Id, n).String()) |
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if v.readOnly { |
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err = fmt.Errorf("%s is read-only", v.dataFile.Name()) |
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return |
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@ -107,8 +108,8 @@ func (v *Volume) writeNeedle(n *Needle) (offset uint64, size uint32, err error) |
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return |
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} |
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func (v *Volume) deleteNeedle(n *Needle) (uint32, error) { |
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glog.V(4).Infof("delete needle %s", NewFileIdFromNeedle(v.Id, n).String()) |
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func (v *Volume) deleteNeedle(n *needle.Needle) (uint32, error) { |
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glog.V(4).Infof("delete needle %s", needle.NewFileIdFromNeedle(v.Id, n).String()) |
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if v.readOnly { |
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return 0, fmt.Errorf("%s is read-only", v.dataFile.Name()) |
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} |
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@ -133,7 +134,7 @@ func (v *Volume) deleteNeedle(n *Needle) (uint32, error) { |
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} |
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// read fills in Needle content by looking up n.Id from NeedleMapper
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func (v *Volume) readNeedle(n *Needle) (int, error) { |
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func (v *Volume) readNeedle(n *needle.Needle) (int, error) { |
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nv, ok := v.nm.Get(n.Id) |
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if !ok || nv.Offset.IsZero() { |
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v.compactingWg.Wait() |
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@ -172,10 +173,10 @@ func (v *Volume) readNeedle(n *Needle) (int, error) { |
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type VolumeFileScanner interface { |
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VisitSuperBlock(SuperBlock) error |
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ReadNeedleBody() bool |
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VisitNeedle(n *Needle, offset int64) error |
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VisitNeedle(n *needle.Needle, offset int64) error |
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} |
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func ScanVolumeFile(dirname string, collection string, id VolumeId, |
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func ScanVolumeFile(dirname string, collection string, id needle.VolumeId, |
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needleMapKind NeedleMapType, |
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volumeFileScanner VolumeFileScanner) (err error) { |
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var v *Volume |
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@ -194,8 +195,8 @@ func ScanVolumeFile(dirname string, collection string, id VolumeId, |
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return ScanVolumeFileFrom(version, v.dataFile, offset, volumeFileScanner) |
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} |
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func ScanVolumeFileFrom(version Version, dataFile *os.File, offset int64, volumeFileScanner VolumeFileScanner) (err error) { |
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n, _, rest, e := ReadNeedleHeader(dataFile, version, offset) |
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func ScanVolumeFileFrom(version needle.Version, dataFile *os.File, offset int64, volumeFileScanner VolumeFileScanner) (err error) { |
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n, _, rest, e := needle.ReadNeedleHeader(dataFile, version, offset) |
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if e != nil { |
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if e == io.EOF { |
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return nil |
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@ -219,7 +220,7 @@ func ScanVolumeFileFrom(version Version, dataFile *os.File, offset int64, volume |
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} |
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offset += NeedleEntrySize + rest |
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glog.V(4).Infof("==> new entry offset %d", offset) |
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if n, _, rest, err = ReadNeedleHeader(dataFile, version, offset); err != nil { |
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if n, _, rest, err = needle.ReadNeedleHeader(dataFile, version, offset); err != nil { |
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if err == io.EOF { |
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return nil |
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} |
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@ -230,8 +231,8 @@ func ScanVolumeFileFrom(version Version, dataFile *os.File, offset int64, volume |
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return nil |
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} |
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func ScanVolumeFileNeedleFrom(version Version, dataFile *os.File, offset int64, fn func(needleHeader, needleBody []byte, needleAppendAtNs uint64) error) (err error) { |
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n, nh, rest, e := ReadNeedleHeader(dataFile, version, offset) |
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func ScanVolumeFileNeedleFrom(version needle.Version, dataFile *os.File, offset int64, fn func(needleHeader, needleBody []byte, needleAppendAtNs uint64) error) (err error) { |
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n, nh, rest, e := needle.ReadNeedleHeader(dataFile, version, offset) |
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if e != nil { |
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if e == io.EOF { |
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return nil |
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@ -252,7 +253,7 @@ func ScanVolumeFileNeedleFrom(version Version, dataFile *os.File, offset int64, |
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} |
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offset += NeedleEntrySize + rest |
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glog.V(4).Infof("==> new entry offset %d", offset) |
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if n, nh, rest, err = ReadNeedleHeader(dataFile, version, offset); err != nil { |
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if n, nh, rest, err = needle.ReadNeedleHeader(dataFile, version, offset); err != nil { |
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if err == io.EOF { |
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return nil |
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} |
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Chris Lu
6 years ago