1 /* 2 * Copyright (C) 2021 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_IMPORTERS_PROTO_PERF_SAMPLE_TRACKER_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PERF_SAMPLE_TRACKER_H_ 19 20 #include <stdint.h> 21 22 #include <unordered_map> 23 24 #include "src/trace_processor/storage/trace_storage.h" 25 26 namespace perfetto { 27 namespace protos { 28 namespace pbzero { 29 class TracePacketDefaults_Decoder; 30 } // namespace pbzero 31 } // namespace protos 32 namespace trace_processor { 33 class TraceProcessorContext; 34 35 class PerfSampleTracker { 36 public: 37 struct SamplingStreamInfo { 38 uint32_t perf_session_id = 0; 39 TrackId timebase_track_id = kInvalidTrackId; 40 SamplingStreamInfoSamplingStreamInfo41 SamplingStreamInfo(uint32_t _perf_session_id, TrackId _timebase_track_id) 42 : perf_session_id(_perf_session_id), 43 timebase_track_id(_timebase_track_id) {} 44 }; 45 PerfSampleTracker(TraceProcessorContext * context)46 explicit PerfSampleTracker(TraceProcessorContext* context) 47 : context_(context) {} 48 49 SamplingStreamInfo GetSamplingStreamInfo( 50 uint32_t seq_id, 51 uint32_t cpu, 52 protos::pbzero::TracePacketDefaults_Decoder* nullable_defaults); 53 54 private: 55 struct CpuSequenceState { 56 TrackId timebase_track_id = kInvalidTrackId; 57 CpuSequenceStateCpuSequenceState58 CpuSequenceState(TrackId _timebase_track_id) 59 : timebase_track_id(_timebase_track_id) {} 60 }; 61 62 struct SequenceState { 63 uint32_t perf_session_id = 0; 64 std::unordered_map<uint32_t, CpuSequenceState> per_cpu; 65 SequenceStateSequenceState66 SequenceState(uint32_t _perf_session_id) 67 : perf_session_id(_perf_session_id) {} 68 }; 69 70 std::unordered_map<uint32_t, SequenceState> seq_state_; 71 uint32_t next_perf_session_id_ = 0; 72 73 TraceProcessorContext* const context_; 74 }; 75 76 } // namespace trace_processor 77 } // namespace perfetto 78 79 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PERF_SAMPLE_TRACKER_H_ 80