| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * 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 INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_ |
| #define INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_ |
| |
| #include "perfetto/base/export.h" |
| #include "perfetto/tracing/tracing_backend.h" |
| |
| namespace perfetto { |
| |
| namespace base { |
| class TaskRunner; |
| } |
| |
| class Producer; |
| |
| // Built-in implementations of TracingProducerBackend and TracingConsumerBackend |
| // that connect to the system tracing daemon (traced) via a UNIX socket using |
| // the perfetto built-in proto-based IPC mechanism. Instantiated when the |
| // embedder calls Tracing::Initialize(kSystemBackend). They allow to get |
| // app-traces fused together with system traces, useful to correlate on the |
| // timeline system events (e.g. scheduling slices from the kernel) with in-app |
| // events. |
| namespace internal { |
| |
| // Producer backend |
| class PERFETTO_EXPORT_COMPONENT SystemProducerTracingBackend |
| : public TracingProducerBackend { |
| public: |
| static TracingProducerBackend* GetInstance(); |
| |
| std::unique_ptr<ProducerEndpoint> ConnectProducer( |
| const ConnectProducerArgs&) override; |
| |
| private: |
| SystemProducerTracingBackend(); |
| }; |
| |
| // Consumer backend |
| class PERFETTO_EXPORT_COMPONENT SystemConsumerTracingBackend |
| : public TracingConsumerBackend { |
| public: |
| static TracingConsumerBackend* GetInstance(); |
| |
| std::unique_ptr<ConsumerEndpoint> ConnectConsumer( |
| const ConnectConsumerArgs&) override; |
| |
| private: |
| SystemConsumerTracingBackend(); |
| }; |
| |
| } // namespace internal |
| } // namespace perfetto |
| |
| #endif // INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_ |