| /* |
| * Copyright (C) 2023 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_BIGTRACE_TRACE_PROCESSOR_WRAPPER_H_ |
| #define SRC_BIGTRACE_TRACE_PROCESSOR_WRAPPER_H_ |
| |
| #include "perfetto/ext/base/threading/future.h" |
| #include "perfetto/ext/base/threading/stream.h" |
| #include "perfetto/ext/base/threading/thread_pool.h" |
| #include "perfetto/ext/trace_processor/rpc/query_result_serializer.h" |
| #include "perfetto/trace_processor/trace_processor.h" |
| |
| namespace perfetto { |
| namespace protos { |
| |
| class QueryTraceResponse; |
| |
| } // namespace protos |
| } // namespace perfetto |
| |
| namespace perfetto { |
| namespace bigtrace { |
| |
| // Wrapper class around an instance of TraceProcessor to adapt it for the needs |
| // of a BigTrace Worker. |
| class TraceProcessorWrapper { |
| public: |
| enum Statefulness { |
| // Indicates that the state of the trace processor instance should be purged |
| // after every query. |
| kStateless, |
| |
| // Indicates that the state of the trace processor instance should be |
| // preserved across queries. |
| kStateful, |
| }; |
| |
| TraceProcessorWrapper(std::string trace_path, |
| base::ThreadPool*, |
| Statefulness); |
| |
| // Loads the trace given a stream of chunks to parse. |
| base::StatusFuture LoadTrace( |
| base::StatusOrStream<std::vector<uint8_t>> file_stream); |
| |
| // Executes the given query on the trace processor and returns the results |
| // as a stream. |
| base::StatusOrStream<protos::QueryTraceResponse> Query( |
| const std::string& sql); |
| |
| private: |
| using TraceProcessor = trace_processor::TraceProcessor; |
| |
| TraceProcessorWrapper(const TraceProcessorWrapper&) = delete; |
| TraceProcessorWrapper& operator=(const TraceProcessorWrapper&) = delete; |
| |
| TraceProcessorWrapper(TraceProcessorWrapper&&) = delete; |
| TraceProcessorWrapper& operator=(TraceProcessorWrapper&&) = delete; |
| |
| const std::string trace_path_; |
| base::ThreadPool* thread_pool_ = nullptr; |
| const Statefulness statefulness_ = Statefulness::kStateless; |
| std::shared_ptr<TraceProcessor> trace_processor_; |
| }; |
| |
| } // namespace bigtrace |
| } // namespace perfetto |
| |
| #endif // SRC_BIGTRACE_TRACE_PROCESSOR_WRAPPER_H_ |