[#1048] control: Add ListShards RPC wrappers

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

pkg/services/control/convert.go

@@ -92,3 +92,22 @@ func (w *dropObjectsResponseWrapper) FromGRPCMessage(m grpc.Message) error {
 
 	return nil
 }
+
+type listShardsRequestWrapper struct {
+	m *ListShardsResponse
+}
+
+func (w *listShardsRequestWrapper) ToGRPCMessage() grpc.Message {
+	return w.m
+}
+
+func (w *listShardsRequestWrapper) FromGRPCMessage(m grpc.Message) error {
+	var ok bool
+
+	w.m, ok = m.(*ListShardsResponse)
+	if !ok {
+		return message.NewUnexpectedMessageType(m, w.m)
+	}
+
+	return nil
+}

pkg/services/control/rpc.go

@@ -12,6 +12,7 @@ const (
 	rpcNetmapSnapshot  = "NetmapSnapshot"
 	rpcSetNetmapStatus = "SetNetmapStatus"
 	rpcDropObjects     = "DropObjects"
+	rpcListShards      = "ListShards"
 )
 
 // HealthCheck executes ControlService.HealthCheck RPC.
@@ -100,3 +101,24 @@ func DropObjects(
 
 	return wResp.m, nil
 }
+
+// ListShards executes ControlService.ListShards RPC.
+func ListShards(
+	cli *client.Client,
+	req *ListShardsRequest,
+	opts ...client.CallOption,
+) (*ListShardsResponse, error) {
+	wResp := &listShardsRequestWrapper{
+		m: new(ListShardsResponse),
+	}
+
+	wReq := &requestWrapper{
+		m: req,
+	}
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceName, rpcListShards), wReq, wResp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return wResp.m, nil
+}