| /* |
| * |
| * Copyright 2017 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/impl/codegen/port_platform.h> |
| |
| #include "src/core/lib/channel/channelz.h" |
| |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/string_util.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "src/core/lib/channel/channelz_registry.h" |
| #include "src/core/lib/channel/status_util.h" |
| #include "src/core/lib/gpr/string.h" |
| #include "src/core/lib/gpr/useful.h" |
| #include "src/core/lib/gprpp/memory.h" |
| #include "src/core/lib/iomgr/error.h" |
| #include "src/core/lib/slice/slice_internal.h" |
| #include "src/core/lib/surface/channel.h" |
| #include "src/core/lib/transport/error_utils.h" |
| |
| namespace grpc_core { |
| namespace channelz { |
| |
| ChannelNode::ChannelNode(grpc_channel* channel, size_t channel_tracer_max_nodes, |
| bool is_top_level_channel) |
| : channel_(channel), |
| target_(nullptr), |
| channel_uuid_(-1), |
| is_top_level_channel_(is_top_level_channel) { |
| trace_.Init(channel_tracer_max_nodes); |
| target_ = UniquePtr<char>(grpc_channel_get_target(channel_)); |
| channel_uuid_ = ChannelzRegistry::RegisterChannelNode(this); |
| gpr_atm_no_barrier_store(&last_call_started_millis_, |
| (gpr_atm)ExecCtx::Get()->Now()); |
| } |
| |
| ChannelNode::~ChannelNode() { |
| trace_.Destroy(); |
| ChannelzRegistry::UnregisterChannelNode(channel_uuid_); |
| } |
| |
| void ChannelNode::RecordCallStarted() { |
| gpr_atm_no_barrier_fetch_add(&calls_started_, (gpr_atm)1); |
| gpr_atm_no_barrier_store(&last_call_started_millis_, |
| (gpr_atm)ExecCtx::Get()->Now()); |
| } |
| |
| void ChannelNode::PopulateConnectivityState(grpc_json* json) {} |
| |
| void ChannelNode::PopulateChildRefs(grpc_json* json) {} |
| |
| grpc_json* ChannelNode::RenderJson() { |
| // We need to track these three json objects to build our object |
| grpc_json* top_level_json = grpc_json_create(GRPC_JSON_OBJECT); |
| grpc_json* json = top_level_json; |
| grpc_json* json_iterator = nullptr; |
| // create and fill the ref child |
| 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, |
| "channelId", channel_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); |
| json_iterator = grpc_json_create_child( |
| json_iterator, json, "target", target_.get(), GRPC_JSON_STRING, false); |
| // fill in the channel trace if applicable |
| grpc_json* trace = trace_->RenderJson(); |
| if (trace != nullptr) { |
| // we manually link up and fill the child since it was created for us in |
| // ChannelTrace::RenderJson |
| json_iterator = grpc_json_link_child(json, trace, json_iterator); |
| trace->parent = json; |
| trace->value = nullptr; |
| trace->key = "trace"; |
| trace->owns_value = false; |
| } |
| // reset the parent to be the data object. |
| json = data; |
| json_iterator = nullptr; |
| if (calls_started_ != 0) { |
| json_iterator = grpc_json_add_number_string_child( |
| json, json_iterator, "callsStarted", calls_started_); |
| } |
| if (calls_succeeded_ != 0) { |
| json_iterator = grpc_json_add_number_string_child( |
| json, json_iterator, "callsSucceeded", calls_succeeded_); |
| } |
| if (calls_failed_) { |
| json_iterator = grpc_json_add_number_string_child( |
| json, json_iterator, "callsFailed", calls_failed_); |
| } |
| gpr_timespec ts = |
| grpc_millis_to_timespec(last_call_started_millis_, GPR_CLOCK_REALTIME); |
| json_iterator = |
| grpc_json_create_child(json_iterator, json, "lastCallStartedTimestamp", |
| gpr_format_timespec(ts), GRPC_JSON_STRING, true); |
| json = top_level_json; |
| json_iterator = nullptr; |
| PopulateChildRefs(json); |
| return top_level_json; |
| } |
| |
| char* ChannelNode::RenderJsonString() { |
| grpc_json* json = RenderJson(); |
| char* json_str = grpc_json_dump_to_string(json, 0); |
| grpc_json_destroy(json); |
| return json_str; |
| } |
| |
| RefCountedPtr<ChannelNode> ChannelNode::MakeChannelNode( |
| grpc_channel* channel, size_t channel_tracer_max_nodes, |
| bool is_top_level_channel) { |
| return MakeRefCounted<grpc_core::channelz::ChannelNode>( |
| channel, channel_tracer_max_nodes, is_top_level_channel); |
| } |
| |
| SubchannelNode::SubchannelNode() { |
| subchannel_uuid_ = ChannelzRegistry::RegisterSubchannelNode(this); |
| } |
| |
| SubchannelNode::~SubchannelNode() { |
| ChannelzRegistry::UnregisterSubchannelNode(subchannel_uuid_); |
| } |
| |
| } // namespace channelz |
| } // namespace grpc_core |