seaweedfs/weed/server/volume_grpc_read_all.go

37 lines
977 B
Go

package weed_server
import (
"fmt"
"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
"github.com/seaweedfs/seaweedfs/weed/storage"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
)
func (vs *VolumeServer) ReadAllNeedles(req *volume_server_pb.ReadAllNeedlesRequest, stream volume_server_pb.VolumeServer_ReadAllNeedlesServer) (err error) {
for _, vid := range req.VolumeIds {
if err := vs.streaReadOneVolume(needle.VolumeId(vid), stream, err); err != nil {
return err
}
}
return nil
}
func (vs *VolumeServer) streaReadOneVolume(vid needle.VolumeId, stream volume_server_pb.VolumeServer_ReadAllNeedlesServer, err error) error {
v := vs.store.GetVolume(vid)
if v == nil {
return fmt.Errorf("not found volume id %d", vid)
}
scanner := &storage.VolumeFileScanner4ReadAll{
Stream: stream,
V: v,
}
offset := int64(v.SuperBlock.BlockSize())
err = storage.ScanVolumeFileFrom(v.Version(), v.DataBackend, offset, scanner)
return err
}