| /* |
| * |
| * Copyright 2018 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H |
| #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include "src/core/lib/channel/channel_args.h" |
| #include "src/core/lib/channel/channel_stack.h" |
| #include "src/core/lib/channel/channel_trace.h" |
| #include "src/core/lib/channel/channelz.h" |
| |
| typedef struct grpc_subchannel grpc_subchannel; |
| |
| namespace grpc_core { |
| namespace channelz { |
| |
| // Subtype of ChannelNode that overrides and provides client_channel specific |
| // functionality like querying for connectivity_state and subchannel data. |
| class ClientChannelNode : public ChannelNode { |
| public: |
| static RefCountedPtr<ChannelNode> MakeClientChannelNode( |
| grpc_channel* channel, size_t channel_tracer_max_nodes, |
| bool is_top_level_channel); |
| |
| ClientChannelNode(grpc_channel* channel, size_t channel_tracer_max_nodes, |
| bool is_top_level_channel); |
| virtual ~ClientChannelNode() {} |
| |
| // Overriding template methods from ChannelNode to render information that |
| // only ClientChannelNode knows about. |
| void PopulateConnectivityState(grpc_json* json) override; |
| void PopulateChildRefs(grpc_json* json) override; |
| |
| // Helper to create a channel arg to ensure this type of ChannelNode is |
| // created. |
| static grpc_arg CreateChannelArg(); |
| |
| private: |
| grpc_channel_element* client_channel_; |
| }; |
| |
| // Handles channelz bookkeeping for sockets |
| class SubchannelNode : public BaseNode { |
| public: |
| SubchannelNode(grpc_subchannel* subchannel, size_t channel_tracer_max_nodes); |
| ~SubchannelNode() override; |
| |
| void MarkSubchannelDestroyed() { |
| GPR_ASSERT(subchannel_ != nullptr); |
| subchannel_ = nullptr; |
| } |
| |
| grpc_json* RenderJson() override; |
| |
| // proxy methods to composed classes. |
| void AddTraceEvent(ChannelTrace::Severity severity, grpc_slice data) { |
| trace_.AddTraceEvent(severity, data); |
| } |
| void AddTraceEventWithReference(ChannelTrace::Severity severity, |
| grpc_slice data, |
| RefCountedPtr<BaseNode> referenced_channel) { |
| trace_.AddTraceEventWithReference(severity, data, |
| std::move(referenced_channel)); |
| } |
| void RecordCallStarted() { call_counter_.RecordCallStarted(); } |
| void RecordCallFailed() { call_counter_.RecordCallFailed(); } |
| void RecordCallSucceeded() { call_counter_.RecordCallSucceeded(); } |
| |
| private: |
| grpc_subchannel* subchannel_; |
| UniquePtr<char> target_; |
| CallCountingHelper call_counter_; |
| ChannelTrace trace_; |
| |
| void PopulateConnectivityState(grpc_json* json); |
| }; |
| |
| } // namespace channelz |
| } // namespace grpc_core |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H */ |