| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include "src/core/ext/filters/client_channel/client_channel.h" |
| #include "src/core/ext/filters/client_channel/client_channel_channelz.h" |
| #include "src/core/lib/channel/channelz_registry.h" |
| #include "src/core/lib/gpr/useful.h" |
| #include "src/core/lib/surface/channel.h" |
| #include "src/core/lib/transport/connectivity_state.h" |
| |
| #include <grpc/support/string_util.h> |
| |
| namespace grpc_core { |
| namespace channelz { |
| |
| SubchannelNode::SubchannelNode(const char* target_address, |
| size_t channel_tracer_max_nodes) |
| : BaseNode(EntityType::kSubchannel, |
| UniquePtr<char>(gpr_strdup(target_address))), |
| target_(UniquePtr<char>(gpr_strdup(target_address))), |
| trace_(channel_tracer_max_nodes) {} |
| |
| SubchannelNode::~SubchannelNode() {} |
| |
| void SubchannelNode::UpdateConnectivityState(grpc_connectivity_state state) { |
| connectivity_state_.Store(state, MemoryOrder::RELAXED); |
| } |
| |
| void SubchannelNode::SetChildSocket(RefCountedPtr<SocketNode> socket) { |
| MutexLock lock(&socket_mu_); |
| child_socket_ = std::move(socket); |
| } |
| |
| void SubchannelNode::PopulateConnectivityState(grpc_json* json) { |
| grpc_connectivity_state state = |
| connectivity_state_.Load(MemoryOrder::RELAXED); |
| json = grpc_json_create_child(nullptr, json, "state", nullptr, |
| GRPC_JSON_OBJECT, false); |
| grpc_json_create_child(nullptr, json, "state", |
| grpc_connectivity_state_name(state), GRPC_JSON_STRING, |
| false); |
| } |
| |
| grpc_json* SubchannelNode::RenderJson() { |
| grpc_json* top_level_json = grpc_json_create(GRPC_JSON_OBJECT); |
| grpc_json* json = top_level_json; |
| grpc_json* json_iterator = nullptr; |
| json_iterator = grpc_json_create_child(json_iterator, json, "ref", nullptr, |
| GRPC_JSON_OBJECT, false); |
| json = json_iterator; |
| json_iterator = nullptr; |
| json_iterator = grpc_json_add_number_string_child(json, json_iterator, |
| "subchannelId", uuid()); |
| // reset json iterators to top level object |
| json = top_level_json; |
| json_iterator = nullptr; |
| // create and fill the data child. |
| grpc_json* data = grpc_json_create_child(json_iterator, json, "data", nullptr, |
| GRPC_JSON_OBJECT, false); |
| json = data; |
| json_iterator = nullptr; |
| PopulateConnectivityState(json); |
| GPR_ASSERT(target_.get() != nullptr); |
| grpc_json_create_child(nullptr, json, "target", target_.get(), |
| GRPC_JSON_STRING, false); |
| // fill in the channel trace if applicable |
| grpc_json* trace_json = trace_.RenderJson(); |
| if (trace_json != nullptr) { |
| trace_json->key = "trace"; // this object is named trace in channelz.proto |
| grpc_json_link_child(json, trace_json, nullptr); |
| } |
| // ask CallCountingHelper to populate trace and call count data. |
| call_counter_.PopulateCallCounts(json); |
| json = top_level_json; |
| // populate the child socket. |
| RefCountedPtr<SocketNode> child_socket; |
| { |
| MutexLock lock(&socket_mu_); |
| child_socket = child_socket_; |
| } |
| if (child_socket != nullptr && child_socket->uuid() != 0) { |
| grpc_json* array_parent = grpc_json_create_child( |
| nullptr, json, "socketRef", nullptr, GRPC_JSON_ARRAY, false); |
| json_iterator = grpc_json_create_child(json_iterator, array_parent, nullptr, |
| nullptr, GRPC_JSON_OBJECT, false); |
| grpc_json* sibling_iterator = grpc_json_add_number_string_child( |
| json_iterator, nullptr, "socketId", child_socket->uuid()); |
| grpc_json_create_child(sibling_iterator, json_iterator, "name", |
| child_socket->name(), GRPC_JSON_STRING, false); |
| } |
| return top_level_json; |
| } |
| |
| } // namespace channelz |
| } // namespace grpc_core |