1 /* 2 * Copyright (C) 2018 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 TEST_FAKE_PRODUCER_H_ 18 #define TEST_FAKE_PRODUCER_H_ 19 20 #include <memory> 21 #include <random> 22 #include <string> 23 24 #include "perfetto/ext/base/thread_checker.h" 25 #include "perfetto/ext/base/unix_socket.h" 26 #include "perfetto/ext/tracing/core/producer.h" 27 #include "perfetto/ext/tracing/ipc/producer_ipc_client.h" 28 #include "perfetto/tracing/core/data_source_descriptor.h" 29 #include "perfetto/tracing/core/trace_config.h" 30 #include "src/base/test/test_task_runner.h" 31 32 namespace perfetto { 33 34 namespace protos { 35 namespace gen { 36 class TestConfig; 37 } // namespace gen 38 } // namespace protos 39 40 class FakeProducer : public Producer { 41 public: 42 explicit FakeProducer(const std::string& name, base::TaskRunner* task_runner); 43 ~FakeProducer() override; 44 45 void Connect(const char* socket_name, 46 std::function<void()> on_connect, 47 std::function<void()> on_setup_data_source_instance, 48 std::function<void()> on_create_data_source_instance, 49 std::unique_ptr<SharedMemory> shm = nullptr, 50 std::unique_ptr<SharedMemoryArbiter> shm_arbiter = nullptr); 51 52 // Produces a batch of events (as configured by the passed config) before the 53 // producer is connected to the service using the provided unbound arbiter. 54 // Posts |callback| once the data was written. May only be called once. 55 void ProduceStartupEventBatch( 56 const protos::gen::TestConfig& config, 57 SharedMemoryArbiter* arbiter, 58 std::function<void()> callback = [] {}); 59 60 // Produces a batch of events (as configured in the DataSourceConfig) and 61 // posts a callback when the service acknowledges the commit. 62 void ProduceEventBatch(std::function<void()> callback = [] {}); 63 64 void RegisterDataSource(const DataSourceDescriptor&); 65 void CommitData(const CommitDataRequest&, std::function<void()> callback); 66 void Sync(std::function<void()> callback); 67 void ActivateTrigger(const std::string& trigger_name); 68 IsShmemProvidedByProducer()69 bool IsShmemProvidedByProducer() const { 70 return endpoint_->IsShmemProvidedByProducer(); 71 } 72 73 // Producer implementation. 74 void OnConnect() override; 75 void OnDisconnect() override; 76 void SetupDataSource(DataSourceInstanceID, 77 const DataSourceConfig& source_config) override; 78 void StartDataSource(DataSourceInstanceID, 79 const DataSourceConfig& source_config) override; 80 void StopDataSource(DataSourceInstanceID) override; 81 void OnTracingSetup() override; 82 void Flush(FlushRequestID, 83 const DataSourceInstanceID*, 84 size_t, 85 FlushFlags) override; ClearIncrementalState(const DataSourceInstanceID *,size_t)86 void ClearIncrementalState(const DataSourceInstanceID* /*data_source_ids*/, 87 size_t /*num_data_sources*/) override {} 88 89 // For testing, access to the fd used to communicate with the TracingService. 90 base::SocketHandle unix_socket_fd(); 91 92 private: 93 void SetupFromConfig(const protos::gen::TestConfig& config); 94 void EmitEventBatchOnTaskRunner(std::function<void()> callback); 95 96 base::ThreadChecker thread_checker_; 97 std::string name_; 98 base::TaskRunner* task_runner_ = nullptr; 99 std::minstd_rand0 rnd_engine_; 100 uint32_t message_size_ = 0; 101 uint32_t message_count_ = 0; 102 uint32_t max_messages_per_second_ = 0; 103 std::function<void()> on_connect_; 104 std::function<void()> on_setup_data_source_instance_; 105 std::function<void()> on_create_data_source_instance_; 106 std::unique_ptr<TracingService::ProducerEndpoint> endpoint_; 107 std::unique_ptr<TraceWriter> trace_writer_; 108 }; 109 110 } // namespace perfetto 111 112 #endif // TEST_FAKE_PRODUCER_H_ 113