1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_TRACED_PROBES_STATSD_CLIENT_STATSD_BINDER_DATA_SOURCE_H_ 18 #define SRC_TRACED_PROBES_STATSD_CLIENT_STATSD_BINDER_DATA_SOURCE_H_ 19 20 #include <memory> 21 22 #include "perfetto/base/task_runner.h" 23 #include "perfetto/ext/base/utils.h" 24 #include "perfetto/ext/base/weak_ptr.h" 25 #include "perfetto/ext/protozero/proto_ring_buffer.h" 26 #include "perfetto/ext/tracing/core/basic_types.h" 27 #include "perfetto/ext/tracing/core/trace_writer.h" 28 #include "perfetto/tracing/core/forward_decls.h" 29 #include "src/traced/probes/probes_data_source.h" 30 31 namespace perfetto { 32 33 class StatsdBinderDataSource : public ProbesDataSource { 34 public: 35 static const ProbesDataSource::Descriptor descriptor; 36 37 StatsdBinderDataSource(base::TaskRunner*, 38 TracingSessionID, 39 std::unique_ptr<TraceWriter> writer, 40 const DataSourceConfig&); 41 ~StatsdBinderDataSource() override; 42 43 // ProbesDataSource implementation. 44 void Start() override; 45 void Flush(FlushRequestID, std::function<void()> callback) override; 46 void ClearIncrementalState() override; 47 48 void OnData(uint32_t reason, const uint8_t* data, size_t sz); 49 50 private: 51 StatsdBinderDataSource(const StatsdBinderDataSource&) = delete; 52 StatsdBinderDataSource& operator=(const StatsdBinderDataSource&) = delete; 53 54 base::TaskRunner* const task_runner_; 55 std::unique_ptr<TraceWriter> writer_; 56 std::string shell_subscription_; 57 int32_t subscription_id_ = -1; 58 std::function<void()> pending_flush_callback_; 59 60 base::WeakPtrFactory<StatsdBinderDataSource> weak_factory_; // Keep last. 61 }; 62 63 } // namespace perfetto 64 65 #endif // SRC_TRACED_PROBES_STATSD_CLIENT_STATSD_BINDER_DATA_SOURCE_H_ 66