snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

channelz/internal/protoconv/subchannel.go

@@ -0,0 +1,65 @@
+/*
+ *
+ * Copyright 2024 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package protoconv
+
+import (
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/internal/channelz"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	channelzpb "google.golang.org/grpc/channelz/grpc_channelz_v1"
+)
+
+func subChannelToProto(cm *channelz.SubChannel) *channelzpb.Subchannel {
+	sc := &channelzpb.Subchannel{}
+	sc.Ref = &channelzpb.SubchannelRef{SubchannelId: cm.ID, Name: cm.RefName}
+
+	sc.Data = &channelzpb.ChannelData{
+		State:          connectivityStateToProto(cm.ChannelMetrics.State.Load()),
+		Target:         strFromPointer(cm.ChannelMetrics.Target.Load()),
+		CallsStarted:   cm.ChannelMetrics.CallsStarted.Load(),
+		CallsSucceeded: cm.ChannelMetrics.CallsSucceeded.Load(),
+		CallsFailed:    cm.ChannelMetrics.CallsFailed.Load(),
+	}
+	if ts := timestamppb.New(time.Unix(0, cm.ChannelMetrics.LastCallStartedTimestamp.Load())); ts.IsValid() {
+		sc.Data.LastCallStartedTimestamp = ts
+	}
+
+	skts := cm.Sockets()
+	sockets := make([]*channelzpb.SocketRef, 0, len(skts))
+	for id, ref := range skts {
+		sockets = append(sockets, &channelzpb.SocketRef{SocketId: id, Name: ref})
+	}
+	sc.SocketRef = sockets
+	sc.Data.Trace = channelTraceToProto(cm.Trace())
+	return sc
+}
+
+// GetSubChannel returns the protobuf representation of the subchannel with the
+// given ID.
+func GetSubChannel(id int64) (*channelzpb.Subchannel, error) {
+	subChan := channelz.GetSubChannel(id)
+	if subChan == nil {
+		return nil, status.Errorf(codes.NotFound, "requested sub channel %d not found", id)
+	}
+	return subChannelToProto(subChan), nil
+}