/* * Copyright (C) 2020 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 SRC_TRACED_PROBES_SYSTEM_INFO_SYSTEM_INFO_DATA_SOURCE_H_ #define SRC_TRACED_PROBES_SYSTEM_INFO_SYSTEM_INFO_DATA_SOURCE_H_ #include #include "perfetto/ext/tracing/core/trace_writer.h" #include "src/traced/probes/common/cpu_freq_info.h" #include "src/traced/probes/probes_data_source.h" namespace perfetto { class SystemInfoDataSource : public ProbesDataSource { public: static const ProbesDataSource::Descriptor descriptor; SystemInfoDataSource(TracingSessionID, std::unique_ptr writer, std::unique_ptr cpu_freq_info); // ProbesDataSource implementation. void Start() override; void Flush(FlushRequestID, std::function callback) override; // Virtual for testing. virtual std::string ReadFile(std::string path); private: std::unique_ptr writer_; std::unique_ptr cpu_freq_info_; }; } // namespace perfetto #endif // SRC_TRACED_PROBES_SYSTEM_INFO_SYSTEM_INFO_DATA_SOURCE_H_