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 SRC_TRACE_PROCESSOR_SLICE_TRACKER_H_ 18 #define SRC_TRACE_PROCESSOR_SLICE_TRACKER_H_ 19 20 #include <stdint.h> 21 22 #include "src/trace_processor/trace_storage.h" 23 24 namespace perfetto { 25 namespace trace_processor { 26 27 class TraceProcessorContext; 28 29 class SliceTracker { 30 public: 31 explicit SliceTracker(TraceProcessorContext*); 32 virtual ~SliceTracker(); 33 34 void BeginAndroid(int64_t timestamp, 35 uint32_t ftrace_tid, 36 uint32_t atrace_tgid, 37 StringId cat, 38 StringId name); 39 40 // virtual for testing 41 virtual void Begin(int64_t timestamp, 42 UniqueTid utid, 43 StringId cat, 44 StringId name); 45 46 // virtual for testing 47 virtual void Scoped(int64_t timestamp, 48 UniqueTid utid, 49 StringId cat, 50 StringId name, 51 int64_t duration); 52 53 void EndAndroid(int64_t timestamp, uint32_t ftrace_tid, uint32_t atrace_tgid); 54 55 // virtual for testing 56 virtual void End(int64_t timestamp, 57 UniqueTid utid, 58 StringId opt_cat = {}, 59 StringId opt_name = {}); 60 61 private: 62 using SlicesStack = std::vector<size_t>; 63 64 void StartSlice(int64_t timestamp, 65 int64_t duration, 66 UniqueTid utid, 67 StringId cat, 68 StringId name); 69 void CompleteSlice(UniqueTid tid); 70 71 void MaybeCloseStack(int64_t end_ts, SlicesStack*); 72 int64_t GetStackHash(const SlicesStack&); 73 74 TraceProcessorContext* const context_; 75 std::unordered_map<UniqueTid, SlicesStack> threads_; 76 std::unordered_map<uint32_t, uint32_t> ftrace_to_atrace_tgid_; 77 }; 78 79 } // namespace trace_processor 80 } // namespace perfetto 81 82 #endif // SRC_TRACE_PROCESSOR_SLICE_TRACKER_H_ 83