1 /* 2 * Copyright (C) 2019 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_TRACE_PROCESSOR_FUCHSIA_TRACE_TOKENIZER_H_ 18 #define SRC_TRACE_PROCESSOR_FUCHSIA_TRACE_TOKENIZER_H_ 19 20 #include "src/trace_processor/chunked_trace_reader.h" 21 #include "src/trace_processor/fuchsia_trace_utils.h" 22 #include "src/trace_processor/trace_blob_view.h" 23 #include "src/trace_processor/trace_storage.h" 24 25 namespace perfetto { 26 namespace trace_processor { 27 28 class TraceProcessorContext; 29 30 // The Fuchsia trace format is documented at 31 // https://fuchsia.googlesource.com/fuchsia/+/HEAD/docs/development/tracing/trace-format/README.md 32 class FuchsiaTraceTokenizer : public ChunkedTraceReader { 33 public: 34 explicit FuchsiaTraceTokenizer(TraceProcessorContext*); 35 ~FuchsiaTraceTokenizer() override; 36 37 // ChunkedTraceReader implementation 38 bool Parse(std::unique_ptr<uint8_t[]>, size_t) override; 39 40 private: 41 struct ProviderInfo { 42 std::string name; 43 44 std::unordered_map<uint64_t, StringId> string_table; 45 std::unordered_map<uint64_t, fuchsia_trace_utils::ThreadInfo> thread_table; 46 47 uint64_t ticks_per_second = 1000000000; 48 }; 49 50 struct RunningThread { 51 fuchsia_trace_utils::ThreadInfo info; 52 int64_t start_ts; 53 }; 54 55 void ParseRecord(TraceBlobView); 56 void RegisterProvider(uint32_t, std::string); 57 58 TraceProcessorContext* const context_; 59 std::vector<uint8_t> leftover_bytes_; 60 61 // Map from tid to pid. Used because in some places we do not get pid info. 62 // Fuchsia tids are never reused. 63 std::unordered_map<uint64_t, uint64_t> pid_table_; 64 std::unordered_map<uint32_t, std::unique_ptr<ProviderInfo>> providers_; 65 ProviderInfo* current_provider_; 66 67 std::unordered_map<uint32_t, RunningThread> cpu_threads_; 68 }; 69 70 } // namespace trace_processor 71 } // namespace perfetto 72 73 #endif // SRC_TRACE_PROCESSOR_FUCHSIA_TRACE_TOKENIZER_H_ 74