3 * Copyright 2018 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H
20 #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H
22 #include <grpc/support/port_platform.h>
24 #include "src/core/lib/channel/channel_args.h"
25 #include "src/core/lib/channel/channel_stack.h"
26 #include "src/core/lib/channel/channel_trace.h"
27 #include "src/core/lib/channel/channelz.h"
35 class SubchannelNode : public BaseNode {
37 SubchannelNode(Subchannel* subchannel, size_t channel_tracer_max_nodes);
38 ~SubchannelNode() override;
40 void MarkSubchannelDestroyed() {
41 GPR_ASSERT(subchannel_ != nullptr);
42 subchannel_ = nullptr;
45 grpc_json* RenderJson() override;
47 // proxy methods to composed classes.
48 void AddTraceEvent(ChannelTrace::Severity severity, const grpc_slice& data) {
49 trace_.AddTraceEvent(severity, data);
51 void AddTraceEventWithReference(ChannelTrace::Severity severity,
52 const grpc_slice& data,
53 RefCountedPtr<BaseNode> referenced_channel) {
54 trace_.AddTraceEventWithReference(severity, data,
55 std::move(referenced_channel));
57 void RecordCallStarted() { call_counter_.RecordCallStarted(); }
58 void RecordCallFailed() { call_counter_.RecordCallFailed(); }
59 void RecordCallSucceeded() { call_counter_.RecordCallSucceeded(); }
62 void PopulateConnectivityState(grpc_json* json);
64 Subchannel* subchannel_;
65 UniquePtr<char> target_;
66 CallCountingHelper call_counter_;
70 } // namespace channelz
71 } // namespace grpc_core
73 #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H */