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/base/thread_checker.h"
25#include "perfetto/tracing/core/data_source_descriptor.h"
26#include "perfetto/tracing/core/producer.h"
27#include "perfetto/tracing/core/trace_config.h"
28#include "perfetto/tracing/ipc/producer_ipc_client.h"
29#include "src/base/test/test_task_runner.h"
30
31namespace perfetto {
32
33class FakeProducer : public Producer {
34 public:
35  explicit FakeProducer(const std::string& name);
36  ~FakeProducer() override;
37
38  void Connect(const char* socket_name,
39               base::TaskRunner* task_runner,
40               std::function<void()> on_create_data_source_instance);
41
42  // Produces a batch of events (as configured in the DataSourceConfig) and
43  // posts a callback when the service acknowledges the commit.
44  void ProduceEventBatch(std::function<void()> callback = [] {});
45
46  // Producer implementation.
47  void OnConnect() override;
48  void OnDisconnect() override;
49  void CreateDataSourceInstance(DataSourceInstanceID,
50                                const DataSourceConfig& source_config) override;
51  void TearDownDataSourceInstance(DataSourceInstanceID) override;
52  void OnTracingSetup() override;
53  void Flush(FlushRequestID, const DataSourceInstanceID*, size_t) override;
54
55 private:
56  void Shutdown();
57
58  base::ThreadChecker thread_checker_;
59  base::TaskRunner* task_runner_ = nullptr;
60  std::string name_;
61  std::minstd_rand0 rnd_engine_;
62  uint64_t message_size_ = 0;
63  uint32_t message_count_ = 0;
64  uint32_t max_messages_per_second_ = 0;
65  std::function<void()> on_create_data_source_instance_;
66  std::unique_ptr<Service::ProducerEndpoint> endpoint_;
67  std::unique_ptr<TraceWriter> trace_writer_;
68};
69
70}  // namespace perfetto
71
72#endif  // TEST_FAKE_PRODUCER_H_
73