mirror of
https://github.com/seaweedfs/seaweedfs.git
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53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package weed_server
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import (
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
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"github.com/chrislusf/seaweedfs/weed/storage"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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"github.com/chrislusf/seaweedfs/weed/storage/super_block"
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)
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func (vs *VolumeServer) ReadAllNeedles(req *volume_server_pb.ReadAllNeedlesRequest, stream volume_server_pb.VolumeServer_ReadAllNeedlesServer) (err error) {
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v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
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if v == nil {
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return fmt.Errorf("not found volume id %d", req.VolumeId)
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}
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scanner := &VolumeFileScanner4ReadAll{
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stream: stream,
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}
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offset := int64(v.SuperBlock.BlockSize())
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err = storage.ScanVolumeFileFrom(v.Version(), v.DataBackend, offset, scanner)
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return err
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}
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type VolumeFileScanner4ReadAll struct {
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stream volume_server_pb.VolumeServer_ReadAllNeedlesServer
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}
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func (scanner *VolumeFileScanner4ReadAll) VisitSuperBlock(superBlock super_block.SuperBlock) error {
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return nil
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}
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func (scanner *VolumeFileScanner4ReadAll) ReadNeedleBody() bool {
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return true
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}
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func (scanner *VolumeFileScanner4ReadAll) VisitNeedle(n *needle.Needle, offset int64, needleHeader, needleBody []byte) error {
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sendErr := scanner.stream.Send(&volume_server_pb.ReadAllNeedlesResponse{
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NeedleId: uint64(n.Id),
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NeedleBlob: n.Data,
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})
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if sendErr != nil {
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return sendErr
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}
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return nil
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}
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