Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 17 | #ifndef SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_ |
| 18 | #define SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_ |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 19 | |
| 20 | #include <functional> |
| 21 | #include <map> |
| 22 | #include <memory> |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 23 | #include <set> |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 24 | |
Eric Seckler | 57c89d9 | 2018-10-26 15:11:55 +0100 | [diff] [blame] | 25 | #include "perfetto/base/gtest_prod_util.h" |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 26 | #include "perfetto/base/logging.h" |
Eric Seckler | f3f524b | 2018-12-13 09:09:34 +0000 | [diff] [blame^] | 27 | #include "perfetto/base/optional.h" |
Sami Kyostila | fbccb3c | 2018-03-21 14:00:47 +0000 | [diff] [blame] | 28 | #include "perfetto/base/time.h" |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 29 | #include "perfetto/base/weak_ptr.h" |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 30 | #include "perfetto/tracing/core/basic_types.h" |
Primiano Tucci | ecf9e4a | 2018-03-14 14:51:58 +0000 | [diff] [blame] | 31 | #include "perfetto/tracing/core/commit_data_request.h" |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 32 | #include "perfetto/tracing/core/data_source_descriptor.h" |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 33 | #include "perfetto/tracing/core/shared_memory_abi.h" |
Oystein Eftevaag | 1269b4a | 2018-01-10 16:29:38 -0800 | [diff] [blame] | 34 | #include "perfetto/tracing/core/trace_config.h" |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 35 | #include "perfetto/tracing/core/tracing_service.h" |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 36 | #include "src/tracing/core/id_allocator.h" |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 37 | |
| 38 | namespace perfetto { |
| 39 | |
| 40 | namespace base { |
| 41 | class TaskRunner; |
| 42 | } // namespace base |
| 43 | |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 44 | class Consumer; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 45 | class DataSourceConfig; |
| 46 | class Producer; |
| 47 | class SharedMemory; |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 48 | class SharedMemoryArbiterImpl; |
Hector Dearman | 6214c8f | 2018-03-27 16:16:22 +0100 | [diff] [blame] | 49 | class TraceBuffer; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 50 | class TraceConfig; |
Sami Kyostila | fbccb3c | 2018-03-21 14:00:47 +0000 | [diff] [blame] | 51 | class TracePacket; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 52 | |
| 53 | // The tracing service business logic. |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 54 | class TracingServiceImpl : public TracingService { |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 55 | public: |
Primiano Tucci | 1a1951d | 2018-04-04 21:08:16 +0200 | [diff] [blame] | 56 | static constexpr size_t kDefaultShmSize = 256 * 1024ul; |
Primiano Tucci | e7ca7c6 | 2018-04-07 08:28:03 +0200 | [diff] [blame] | 57 | static constexpr size_t kMaxShmSize = 32 * 1024 * 1024ul; |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 58 | static constexpr uint32_t kDataSourceStopTimeoutMs = 5000; |
Primiano Tucci | 9754d0d | 2018-09-15 12:41:46 +0100 | [diff] [blame] | 59 | static constexpr uint8_t kSyncMarker[] = {0x82, 0x47, 0x7a, 0x76, 0xb2, 0x8d, |
| 60 | 0x42, 0xba, 0x81, 0xdc, 0x33, 0x32, |
| 61 | 0x6d, 0x57, 0xa0, 0x79}; |
Primiano Tucci | 1a1951d | 2018-04-04 21:08:16 +0200 | [diff] [blame] | 62 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 63 | // The implementation behind the service endpoint exposed to each producer. |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 64 | class ProducerEndpointImpl : public TracingService::ProducerEndpoint { |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 65 | public: |
| 66 | ProducerEndpointImpl(ProducerID, |
Sami Kyostila | 32e0b54 | 2018-02-14 08:55:43 +0000 | [diff] [blame] | 67 | uid_t uid, |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 68 | TracingServiceImpl*, |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 69 | base::TaskRunner*, |
Isabelle Taylor | 86262cb | 2018-03-27 16:00:54 +0100 | [diff] [blame] | 70 | Producer*, |
| 71 | const std::string& producer_name); |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 72 | ~ProducerEndpointImpl() override; |
| 73 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 74 | // TracingService::ProducerEndpoint implementation. |
Primiano Tucci | 9daa483 | 2018-03-28 23:28:17 +0100 | [diff] [blame] | 75 | void RegisterDataSource(const DataSourceDescriptor&) override; |
| 76 | void UnregisterDataSource(const std::string& name) override; |
Eric Seckler | 1c4e1ac | 2018-11-29 10:23:14 +0000 | [diff] [blame] | 77 | void RegisterTraceWriter(uint32_t writer_id, |
| 78 | uint32_t target_buffer) override; |
| 79 | void UnregisterTraceWriter(uint32_t writer_id) override; |
Primiano Tucci | 3e69ed9 | 2018-03-14 14:52:29 +0000 | [diff] [blame] | 80 | void CommitData(const CommitDataRequest&, CommitDataCallback) override; |
Isabelle Taylor | 69faa90 | 2018-03-21 15:42:03 +0000 | [diff] [blame] | 81 | void SetSharedMemory(std::unique_ptr<SharedMemory>); |
Primiano Tucci | af429f9 | 2017-12-19 01:51:50 +0100 | [diff] [blame] | 82 | std::unique_ptr<TraceWriter> CreateTraceWriter(BufferID) override; |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 83 | void NotifyFlushComplete(FlushRequestID) override; |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 84 | void NotifyDataSourceStopped(DataSourceInstanceID) override; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 85 | SharedMemory* shared_memory() const override; |
Isabelle Taylor | 69faa90 | 2018-03-21 15:42:03 +0000 | [diff] [blame] | 86 | size_t shared_buffer_page_size_kb() const override; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 87 | |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 88 | void OnTracingSetup(); |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 89 | void SetupDataSource(DataSourceInstanceID, const DataSourceConfig&); |
Primiano Tucci | afb72b5 | 2018-09-25 09:37:24 +0100 | [diff] [blame] | 90 | void StartDataSource(DataSourceInstanceID, const DataSourceConfig&); |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 91 | void StopDataSource(DataSourceInstanceID); |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 92 | void Flush(FlushRequestID, const std::vector<DataSourceInstanceID>&); |
Eric Seckler | 6dc2359 | 2018-11-30 10:59:06 +0000 | [diff] [blame] | 93 | void OnFreeBuffers(const std::vector<BufferID>& target_buffers); |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 94 | |
Eric Seckler | dd0ad10 | 2018-12-06 11:32:04 +0000 | [diff] [blame] | 95 | bool is_allowed_target_buffer(BufferID buffer_id) const { |
| 96 | return allowed_target_buffers_.count(buffer_id); |
| 97 | } |
| 98 | |
Eric Seckler | f3f524b | 2018-12-13 09:09:34 +0000 | [diff] [blame^] | 99 | base::Optional<BufferID> buffer_id_for_writer(WriterID writer_id) const { |
| 100 | const auto it = writers_.find(writer_id); |
| 101 | if (it != writers_.end()) |
| 102 | return it->second; |
| 103 | return base::nullopt; |
| 104 | } |
| 105 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 106 | private: |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 107 | friend class TracingServiceImpl; |
| 108 | friend class TracingServiceImplTest; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 109 | ProducerEndpointImpl(const ProducerEndpointImpl&) = delete; |
| 110 | ProducerEndpointImpl& operator=(const ProducerEndpointImpl&) = delete; |
Primiano Tucci | dca727d | 2018-04-04 11:31:55 +0200 | [diff] [blame] | 111 | SharedMemoryArbiterImpl* GetOrCreateShmemArbiter(); |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 112 | |
| 113 | ProducerID const id_; |
Sami Kyostila | 32e0b54 | 2018-02-14 08:55:43 +0000 | [diff] [blame] | 114 | const uid_t uid_; |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 115 | TracingServiceImpl* const service_; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 116 | base::TaskRunner* const task_runner_; |
| 117 | Producer* producer_; |
| 118 | std::unique_ptr<SharedMemory> shared_memory_; |
Isabelle Taylor | 69faa90 | 2018-03-21 15:42:03 +0000 | [diff] [blame] | 119 | size_t shared_buffer_page_size_kb_ = 0; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 120 | SharedMemoryABI shmem_abi_; |
Primiano Tucci | 1a1951d | 2018-04-04 21:08:16 +0200 | [diff] [blame] | 121 | size_t shmem_size_hint_bytes_ = 0; |
Isabelle Taylor | 86262cb | 2018-03-27 16:00:54 +0100 | [diff] [blame] | 122 | const std::string name_; |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 123 | |
Eric Seckler | 6dc2359 | 2018-11-30 10:59:06 +0000 | [diff] [blame] | 124 | // Set of the global target_buffer IDs that the producer is configured to |
| 125 | // write into in any active tracing session. |
| 126 | std::set<BufferID> allowed_target_buffers_; |
| 127 | |
Eric Seckler | f3f524b | 2018-12-13 09:09:34 +0000 | [diff] [blame^] | 128 | // Maps registered TraceWriter IDs to their target buffers as registered by |
| 129 | // the producer. Note that producers aren't required to register their |
| 130 | // writers, so we may see commits of chunks with WriterIDs that aren't |
| 131 | // contained in this map. However, if a producer does register a writer, the |
| 132 | // service will prevent the writer from writing into any other buffer than |
| 133 | // the one associated with it here. The BufferIDs stored in this map are |
| 134 | // untrusted, so need to be verified against |allowed_target_buffers_| |
| 135 | // before use. |
| 136 | std::map<WriterID, BufferID> writers_; |
| 137 | |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 138 | // This is used only in in-process configurations (mostly tests). |
| 139 | std::unique_ptr<SharedMemoryArbiterImpl> inproc_shmem_arbiter_; |
Florian Mayer | cd08ec6 | 2018-01-31 17:49:25 +0000 | [diff] [blame] | 140 | PERFETTO_THREAD_CHECKER(thread_checker_) |
Primiano Tucci | dca727d | 2018-04-04 11:31:55 +0200 | [diff] [blame] | 141 | base::WeakPtrFactory<ProducerEndpointImpl> weak_ptr_factory_; // Keep last. |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 142 | }; |
| 143 | |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 144 | // The implementation behind the service endpoint exposed to each consumer. |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 145 | class ConsumerEndpointImpl : public TracingService::ConsumerEndpoint { |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 146 | public: |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 147 | ConsumerEndpointImpl(TracingServiceImpl*, base::TaskRunner*, Consumer*); |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 148 | ~ConsumerEndpointImpl() override; |
| 149 | |
Primiano Tucci | dca727d | 2018-04-04 11:31:55 +0200 | [diff] [blame] | 150 | void NotifyOnTracingDisabled(); |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 151 | base::WeakPtr<ConsumerEndpointImpl> GetWeakPtr(); |
| 152 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 153 | // TracingService::ConsumerEndpoint implementation. |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 154 | void EnableTracing(const TraceConfig&, base::ScopedFile) override; |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 155 | void StartTracing() override; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 156 | void DisableTracing() override; |
| 157 | void ReadBuffers() override; |
| 158 | void FreeBuffers() override; |
Primiano Tucci | 3cbb10a | 2018-04-10 17:52:40 +0100 | [diff] [blame] | 159 | void Flush(uint32_t timeout_ms, FlushCallback) override; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 160 | |
| 161 | private: |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 162 | friend class TracingServiceImpl; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 163 | ConsumerEndpointImpl(const ConsumerEndpointImpl&) = delete; |
| 164 | ConsumerEndpointImpl& operator=(const ConsumerEndpointImpl&) = delete; |
| 165 | |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 166 | base::TaskRunner* const task_runner_; |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 167 | TracingServiceImpl* const service_; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 168 | Consumer* const consumer_; |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 169 | TracingSessionID tracing_session_id_ = 0; |
Florian Mayer | cd08ec6 | 2018-01-31 17:49:25 +0000 | [diff] [blame] | 170 | PERFETTO_THREAD_CHECKER(thread_checker_) |
Primiano Tucci | dca727d | 2018-04-04 11:31:55 +0200 | [diff] [blame] | 171 | base::WeakPtrFactory<ConsumerEndpointImpl> weak_ptr_factory_; // Keep last. |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 172 | }; |
| 173 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 174 | explicit TracingServiceImpl(std::unique_ptr<SharedMemory::Factory>, |
| 175 | base::TaskRunner*); |
| 176 | ~TracingServiceImpl() override; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 177 | |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 178 | // Called by ProducerEndpointImpl. |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 179 | void DisconnectProducer(ProducerID); |
Primiano Tucci | 9daa483 | 2018-03-28 23:28:17 +0100 | [diff] [blame] | 180 | void RegisterDataSource(ProducerID, const DataSourceDescriptor&); |
| 181 | void UnregisterDataSource(ProducerID, const std::string& name); |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 182 | void CopyProducerPageIntoLogBuffer(ProducerID, |
Primiano Tucci | ecf9e4a | 2018-03-14 14:51:58 +0000 | [diff] [blame] | 183 | uid_t, |
| 184 | WriterID, |
| 185 | ChunkID, |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 186 | BufferID, |
Primiano Tucci | ecf9e4a | 2018-03-14 14:51:58 +0000 | [diff] [blame] | 187 | uint16_t num_fragments, |
| 188 | uint8_t chunk_flags, |
| 189 | const uint8_t* src, |
| 190 | size_t size); |
| 191 | void ApplyChunkPatches(ProducerID, |
| 192 | const std::vector<CommitDataRequest::ChunkToPatch>&); |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 193 | void NotifyFlushDoneForProducer(ProducerID, FlushRequestID); |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 194 | void NotifyDataSourceStopped(ProducerID, const DataSourceInstanceID); |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 195 | |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 196 | // Called by ConsumerEndpointImpl. |
| 197 | void DisconnectConsumer(ConsumerEndpointImpl*); |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 198 | bool EnableTracing(ConsumerEndpointImpl*, |
| 199 | const TraceConfig&, |
| 200 | base::ScopedFile); |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 201 | bool StartTracing(TracingSessionID); |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 202 | void DisableTracing(TracingSessionID, bool disable_immediately = false); |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 203 | void Flush(TracingSessionID tsid, |
Primiano Tucci | 3cbb10a | 2018-04-10 17:52:40 +0100 | [diff] [blame] | 204 | uint32_t timeout_ms, |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 205 | ConsumerEndpoint::FlushCallback); |
| 206 | void FlushAndDisableTracing(TracingSessionID); |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 207 | void ReadBuffers(TracingSessionID, ConsumerEndpointImpl*); |
| 208 | void FreeBuffers(TracingSessionID); |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 209 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 210 | // Service implementation. |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 211 | std::unique_ptr<TracingService::ProducerEndpoint> ConnectProducer( |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 212 | Producer*, |
Sami Kyostila | 32e0b54 | 2018-02-14 08:55:43 +0000 | [diff] [blame] | 213 | uid_t uid, |
Isabelle Taylor | 86262cb | 2018-03-27 16:00:54 +0100 | [diff] [blame] | 214 | const std::string& producer_name, |
Isabelle Taylor | 69faa90 | 2018-03-21 15:42:03 +0000 | [diff] [blame] | 215 | size_t shared_memory_size_hint_bytes = 0) override; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 216 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 217 | std::unique_ptr<TracingService::ConsumerEndpoint> ConnectConsumer( |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 218 | Consumer*) override; |
| 219 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 220 | // Exposed mainly for testing. |
| 221 | size_t num_producers() const { return producers_.size(); } |
| 222 | ProducerEndpointImpl* GetProducer(ProducerID) const; |
| 223 | |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 224 | uint32_t override_data_source_test_timeout_ms_for_testing = 0; |
| 225 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 226 | private: |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 227 | friend class TracingServiceImplTest; |
Primiano Tucci | 081d46a | 2018-02-28 11:09:43 +0000 | [diff] [blame] | 228 | |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 229 | struct RegisteredDataSource { |
| 230 | ProducerID producer_id; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 231 | DataSourceDescriptor descriptor; |
| 232 | }; |
| 233 | |
Sami Kyostila | 06487a2 | 2018-02-27 13:48:38 +0000 | [diff] [blame] | 234 | // Represents an active data source for a tracing session. |
| 235 | struct DataSourceInstance { |
Primiano Tucci | 5403e4f | 2018-11-27 10:07:03 +0000 | [diff] [blame] | 236 | DataSourceInstance(DataSourceInstanceID id, |
| 237 | const DataSourceConfig& cfg, |
| 238 | const std::string& ds_name, |
| 239 | bool notify) |
| 240 | : instance_id(id), |
| 241 | config(cfg), |
| 242 | data_source_name(ds_name), |
| 243 | will_notify_on_stop(notify) {} |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 244 | DataSourceInstance(const DataSourceInstance&) = delete; |
| 245 | DataSourceInstance& operator=(const DataSourceInstance&) = delete; |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 246 | |
Sami Kyostila | 06487a2 | 2018-02-27 13:48:38 +0000 | [diff] [blame] | 247 | DataSourceInstanceID instance_id; |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 248 | DataSourceConfig config; |
Primiano Tucci | 9daa483 | 2018-03-28 23:28:17 +0100 | [diff] [blame] | 249 | std::string data_source_name; |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 250 | bool will_notify_on_stop; |
Sami Kyostila | 06487a2 | 2018-02-27 13:48:38 +0000 | [diff] [blame] | 251 | }; |
| 252 | |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 253 | struct PendingFlush { |
| 254 | std::set<ProducerID> producers; |
| 255 | ConsumerEndpoint::FlushCallback callback; |
| 256 | explicit PendingFlush(decltype(callback) cb) : callback(std::move(cb)) {} |
| 257 | }; |
| 258 | |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 259 | // Holds the state of a tracing session. A tracing session is uniquely bound |
| 260 | // a specific Consumer. Each Consumer can own one or more sessions. |
| 261 | struct TracingSession { |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 262 | enum State { |
| 263 | DISABLED = 0, |
| 264 | CONFIGURED, |
| 265 | STARTED, |
| 266 | DISABLING_WAITING_STOP_ACKS |
| 267 | }; |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 268 | |
| 269 | TracingSession(TracingSessionID, ConsumerEndpointImpl*, const TraceConfig&); |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 270 | |
| 271 | size_t num_buffers() const { return buffers_index.size(); } |
| 272 | |
Primiano Tucci | 3cbb10a | 2018-04-10 17:52:40 +0100 | [diff] [blame] | 273 | uint32_t delay_to_next_write_period_ms() const { |
Sami Kyostila | 01c45f0 | 2018-03-29 15:43:10 +0100 | [diff] [blame] | 274 | PERFETTO_DCHECK(write_period_ms > 0); |
| 275 | return write_period_ms - |
| 276 | (base::GetWallTimeMs().count() % write_period_ms); |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 277 | } |
| 278 | |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 279 | const TracingSessionID id; |
| 280 | |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 281 | // The consumer that started the session. |
| 282 | ConsumerEndpointImpl* const consumer; |
| 283 | |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 284 | // The original trace config provided by the Consumer when calling |
| 285 | // EnableTracing(). |
| 286 | const TraceConfig config; |
Oystein Eftevaag | 1269b4a | 2018-01-10 16:29:38 -0800 | [diff] [blame] | 287 | |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 288 | // List of data source instances that have been enabled on the various |
| 289 | // producers for this tracing session. |
Sami Kyostila | 06487a2 | 2018-02-27 13:48:38 +0000 | [diff] [blame] | 290 | std::multimap<ProducerID, DataSourceInstance> data_source_instances; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 291 | |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 292 | // For each Flush(N) request, keeps track of the set of producers for which |
| 293 | // we are still awaiting a NotifyFlushComplete(N) ack. |
| 294 | std::map<FlushRequestID, PendingFlush> pending_flushes; |
| 295 | |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 296 | // After DisableTracing() is called, this contains the subset of data |
| 297 | // sources that did set the |will_notify_on_stop| flag upon registration and |
| 298 | // that have the haven't replied yet to the stop request. |
| 299 | std::set<std::pair<ProducerID, DataSourceInstanceID>> pending_stop_acks; |
| 300 | |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 301 | // Maps a per-trace-session buffer index into the corresponding global |
| 302 | // BufferID (shared namespace amongst all consumers). This vector has as |
| 303 | // many entries as |config.buffers_size()|. |
| 304 | std::vector<BufferID> buffers_index; |
Sami Kyostila | fbccb3c | 2018-03-21 14:00:47 +0000 | [diff] [blame] | 305 | |
Primiano Tucci | 9754d0d | 2018-09-15 12:41:46 +0100 | [diff] [blame] | 306 | // When the last snapshots (clock, stats, sync marker) were emitted into |
| 307 | // the output stream. |
| 308 | base::TimeMillis last_snapshot_time = {}; |
Primiano Tucci | 5e33cad | 2018-04-30 14:41:25 +0100 | [diff] [blame] | 309 | |
Sami Kyostila | 200bd2e | 2018-03-26 12:24:10 +0100 | [diff] [blame] | 310 | // Whether we mirrored the trace config back to the trace output yet. |
| 311 | bool did_emit_config = false; |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 312 | |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 313 | State state = DISABLED; |
Primiano Tucci | 2ffd1a5 | 2018-03-27 01:01:30 +0100 | [diff] [blame] | 314 | |
| 315 | // This is set when the Consumer calls sets |write_into_file| == true in the |
| 316 | // TraceConfig. In this case this represents the file we should stream the |
| 317 | // trace packets into, rather than returning it to the consumer via |
| 318 | // OnTraceData(). |
| 319 | base::ScopedFile write_into_file; |
Primiano Tucci | 3cbb10a | 2018-04-10 17:52:40 +0100 | [diff] [blame] | 320 | uint32_t write_period_ms = 0; |
| 321 | uint64_t max_file_size_bytes = 0; |
| 322 | uint64_t bytes_written_into_file = 0; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 323 | }; |
| 324 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 325 | TracingServiceImpl(const TracingServiceImpl&) = delete; |
| 326 | TracingServiceImpl& operator=(const TracingServiceImpl&) = delete; |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 327 | |
Primiano Tucci | 674076d | 2018-10-01 10:41:09 +0100 | [diff] [blame] | 328 | DataSourceInstance* SetupDataSource(const TraceConfig::DataSource&, |
| 329 | const TraceConfig::ProducerConfig&, |
| 330 | const RegisteredDataSource&, |
| 331 | TracingSession*); |
Oystein Eftevaag | 1269b4a | 2018-01-10 16:29:38 -0800 | [diff] [blame] | 332 | |
Primiano Tucci | 081d46a | 2018-02-28 11:09:43 +0000 | [diff] [blame] | 333 | // Returns the next available ProducerID that is not in |producers_|. |
| 334 | ProducerID GetNextProducerID(); |
| 335 | |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 336 | // Returns a pointer to the |tracing_sessions_| entry or nullptr if the |
| 337 | // session doesn't exists. |
| 338 | TracingSession* GetTracingSession(TracingSessionID); |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 339 | |
Lalit Maganti | 485faff | 2018-03-06 11:51:35 +0000 | [diff] [blame] | 340 | // Update the memory guard rail by using the latest information from the |
| 341 | // shared memory and trace buffers. |
| 342 | void UpdateMemoryGuardrail(); |
| 343 | |
Primiano Tucci | 9754d0d | 2018-09-15 12:41:46 +0100 | [diff] [blame] | 344 | void SnapshotSyncMarker(std::vector<TracePacket>*); |
| 345 | void SnapshotClocks(std::vector<TracePacket>*); |
| 346 | void SnapshotStats(TracingSession*, std::vector<TracePacket>*); |
Sami Kyostila | 200bd2e | 2018-03-26 12:24:10 +0100 | [diff] [blame] | 347 | void MaybeEmitTraceConfig(TracingSession*, std::vector<TracePacket>*); |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 348 | void OnFlushTimeout(TracingSessionID, FlushRequestID); |
Primiano Tucci | baeecf1 | 2018-07-25 12:02:20 +0100 | [diff] [blame] | 349 | void OnDisableTracingTimeout(TracingSessionID); |
| 350 | void DisableTracingNotifyConsumerAndFlushFile(TracingSession*); |
Primiano Tucci | caa5780 | 2018-11-25 11:07:07 +0000 | [diff] [blame] | 351 | void PeriodicFlushTask(TracingSessionID, bool post_next_only); |
Hector Dearman | 6214c8f | 2018-03-27 16:16:22 +0100 | [diff] [blame] | 352 | TraceBuffer* GetBufferByID(BufferID); |
Primiano Tucci | ecf9e4a | 2018-03-14 14:51:58 +0000 | [diff] [blame] | 353 | |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 354 | base::TaskRunner* const task_runner_; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 355 | std::unique_ptr<SharedMemory::Factory> shm_factory_; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 356 | ProducerID last_producer_id_ = 0; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 357 | DataSourceInstanceID last_data_source_instance_id_ = 0; |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 358 | TracingSessionID last_tracing_session_id_ = 0; |
Primiano Tucci | d52e627 | 2018-04-06 19:06:53 +0200 | [diff] [blame] | 359 | FlushRequestID last_flush_request_id_ = 0; |
Primiano Tucci | 5e33cad | 2018-04-30 14:41:25 +0100 | [diff] [blame] | 360 | uid_t uid_ = 0; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 361 | |
| 362 | // Buffer IDs are global across all consumers (because a Producer can produce |
| 363 | // data for more than one trace session, hence more than one consumer). |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 364 | IdAllocator<BufferID> buffer_ids_; |
Primiano Tucci | 5358933 | 2017-12-19 11:31:13 +0100 | [diff] [blame] | 365 | |
| 366 | std::multimap<std::string /*name*/, RegisteredDataSource> data_sources_; |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 367 | std::map<ProducerID, ProducerEndpointImpl*> producers_; |
Primiano Tucci | 42e2de1 | 2017-12-07 16:46:04 +0000 | [diff] [blame] | 368 | std::set<ConsumerEndpointImpl*> consumers_; |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 369 | std::map<TracingSessionID, TracingSession> tracing_sessions_; |
Hector Dearman | 6214c8f | 2018-03-27 16:16:22 +0100 | [diff] [blame] | 370 | std::map<BufferID, std::unique_ptr<TraceBuffer>> buffers_; |
Primiano Tucci | 20d441d | 2018-01-16 09:25:51 +0000 | [diff] [blame] | 371 | |
Florian Mayer | 61c5548 | 2018-03-06 14:43:54 +0000 | [diff] [blame] | 372 | bool lockdown_mode_ = false; |
Primiano Tucci | 9754d0d | 2018-09-15 12:41:46 +0100 | [diff] [blame] | 373 | uint32_t min_write_period_ms_ = 100; // Overridable for testing. |
| 374 | |
| 375 | uint8_t sync_marker_packet_[32]; // Lazily initialized. |
| 376 | size_t sync_marker_packet_size_ = 0; |
Florian Mayer | 61c5548 | 2018-03-06 14:43:54 +0000 | [diff] [blame] | 377 | |
Florian Mayer | cd08ec6 | 2018-01-31 17:49:25 +0000 | [diff] [blame] | 378 | PERFETTO_THREAD_CHECKER(thread_checker_) |
| 379 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 380 | base::WeakPtrFactory<TracingServiceImpl> |
| 381 | weak_ptr_factory_; // Keep at the end. |
Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 382 | }; |
| 383 | |
| 384 | } // namespace perfetto |
| 385 | |
Florian Mayer | 6a1a4d5 | 2018-06-08 16:47:07 +0100 | [diff] [blame] | 386 | #endif // SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_ |