snapshot of https://github.com/seaweedfs/seaweedfs.git (master, 2026-09-16; blobs > 131072B omitted)

weed/server/volume_grpc_read_write.go

@@ -0,0 +1,96 @@
+package weed_server
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
+	"github.com/seaweedfs/seaweedfs/weed/stats"
+	"github.com/seaweedfs/seaweedfs/weed/storage/needle"
+	"github.com/seaweedfs/seaweedfs/weed/storage/types"
+)
+
+func (vs *VolumeServer) ReadNeedleBlob(ctx context.Context, req *volume_server_pb.ReadNeedleBlobRequest) (resp *volume_server_pb.ReadNeedleBlobResponse, err error) {
+	if err := func() error {
+		resp = &volume_server_pb.ReadNeedleBlobResponse{}
+		v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
+		if v == nil {
+			return fmt.Errorf("not found volume id %d", req.VolumeId)
+		}
+
+		resp.NeedleBlob, err = v.ReadNeedleBlob(req.Offset, types.Size(req.Size))
+		if err != nil {
+			return fmt.Errorf("read needle blob offset %d size %d: %v", req.Offset, req.Size, err)
+		}
+
+		return nil
+	}(); err != nil {
+		stats.VolumeServerFileReadFailures.Inc()
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+func (vs *VolumeServer) ReadNeedleMeta(ctx context.Context, req *volume_server_pb.ReadNeedleMetaRequest) (resp *volume_server_pb.ReadNeedleMetaResponse, err error) {
+	resp = &volume_server_pb.ReadNeedleMetaResponse{}
+	volumeId := needle.VolumeId(req.VolumeId)
+
+	if err := func() error {
+		n := &needle.Needle{
+			Id:    types.NeedleId(req.NeedleId),
+			Flags: 0x08,
+		}
+		size := req.Size
+		offset := req.Offset
+
+		hasVolume := vs.store.HasVolume(volumeId)
+		if !hasVolume {
+			return fmt.Errorf("not found volume id %d and read needle metadata at ec shards is not supported", req.VolumeId)
+		}
+		err = vs.store.ReadVolumeNeedleMetaAt(volumeId, n, offset, size)
+		if err != nil {
+			return err
+		}
+
+		resp.Cookie = uint32(n.Cookie)
+		resp.LastModified = n.LastModified
+		resp.Crc = n.Checksum.Value()
+		if n.HasTtl() {
+			resp.Ttl = n.Ttl.String()
+		}
+		resp.AppendAtNs = n.AppendAtNs
+
+		return nil
+	}(); err != nil {
+		stats.VolumeServerFileReadFailures.Inc()
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+func (vs *VolumeServer) WriteNeedleBlob(ctx context.Context, req *volume_server_pb.WriteNeedleBlobRequest) (resp *volume_server_pb.WriteNeedleBlobResponse, err error) {
+	if err := vs.CheckMaintenanceMode(); err != nil {
+		return nil, err
+	}
+
+	resp = &volume_server_pb.WriteNeedleBlobResponse{}
+
+	if err := func() error {
+		v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
+		if v == nil {
+			return fmt.Errorf("not found volume id %d", req.VolumeId)
+		}
+		if err = v.WriteNeedleBlob(types.NeedleId(req.NeedleId), req.NeedleBlob, types.Size(req.Size)); err != nil {
+			return fmt.Errorf("write blob needle %d size %d: %v", req.NeedleId, req.Size, err)
+		}
+
+		return nil
+	}(); err != nil {
+		stats.VolumeServerFileWriteFailures.Inc()
+		return nil, err
+	}
+
+	return resp, nil
+}