seaweedfs/weed/storage/volume_read_all.go

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package storage
import (
"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
)
type VolumeFileScanner4ReadAll struct {
Stream volume_server_pb.VolumeServer_ReadAllNeedlesServer
V *Volume
}
func (scanner *VolumeFileScanner4ReadAll) VisitSuperBlock(superBlock super_block.SuperBlock) error {
return nil
}
func (scanner *VolumeFileScanner4ReadAll) ReadNeedleBody() bool {
return true
}
func (scanner *VolumeFileScanner4ReadAll) VisitNeedle(n *needle.Needle, offset int64, needleHeader, needleBody []byte) error {
nv, ok := scanner.V.nm.Get(n.Id)
if !ok {
return nil
}
if nv.Offset.ToActualOffset() != offset {
return nil
}
sendErr := scanner.Stream.Send(&volume_server_pb.ReadAllNeedlesResponse{
VolumeId: uint32(scanner.V.Id),
NeedleId: uint64(n.Id),
Cookie: uint32(n.Cookie),
NeedleBlob: n.Data,
NeedleBlobCompressed: n.IsCompressed(),
LastModified: n.LastModified,
Crc: n.Checksum.Value(),
Name: n.Name,
Mime: n.Mime,
})
if sendErr != nil {
return sendErr
}
return nil
}