1 /* 2 * Copyright (C) 2024 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_COMMON_LEGACY_V8_CPU_PROFILE_TRACKER_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_LEGACY_V8_CPU_PROFILE_TRACKER_H_ 19 20 #include <cstdint> 21 #include <optional> 22 #include <utility> 23 24 #include "perfetto/base/status.h" 25 #include "perfetto/ext/base/flat_hash_map.h" 26 #include "perfetto/ext/base/hash.h" 27 #include "perfetto/ext/base/status_or.h" 28 #include "perfetto/ext/base/string_view.h" 29 #include "src/trace_processor/importers/common/virtual_memory_mapping.h" 30 #include "src/trace_processor/storage/trace_storage.h" 31 #include "src/trace_processor/types/trace_processor_context.h" 32 33 namespace perfetto::trace_processor { 34 35 // Stores interned callsites for given pid for legacy v8 samples. 36 class LegacyV8CpuProfileTracker { 37 public: 38 explicit LegacyV8CpuProfileTracker(TraceProcessorContext*); 39 40 // Sets the start timestamp for the given pid. 41 void SetStartTsForSessionAndPid(uint64_t session_id, 42 uint32_t pid, 43 int64_t ts); 44 45 // Adds the callsite with for the given session and pid and given raw callsite 46 // id. 47 base::Status AddCallsite(uint64_t session_id, 48 uint32_t pid, 49 uint32_t raw_callsite_id, 50 std::optional<uint32_t> parent_raw_callsite_id, 51 base::StringView script_url, 52 base::StringView function_name); 53 54 // Increments the current timestamp for the given session and pid by 55 // |delta_ts| and returns the resulting full timestamp. 56 base::StatusOr<int64_t> AddDeltaAndGetTs(uint64_t session_id, 57 uint32_t pid, 58 int64_t delta_ts); 59 60 // Adds the sample with for the given session and pid/tid and given raw 61 // callsite id. 62 base::Status AddSample(int64_t ts, 63 uint64_t session_id, 64 uint32_t pid, 65 uint32_t tid, 66 uint32_t raw_callsite_id); 67 68 private: 69 struct State { 70 int64_t ts; 71 base::FlatHashMap<uint32_t, CallsiteId> callsites; 72 DummyMemoryMapping* mapping; 73 }; 74 struct Hasher { operatorHasher75 uint64_t operator()(const std::pair<uint64_t, uint32_t>& res) { 76 return base::Hasher::Combine(res.first, res.second); 77 } 78 }; 79 base::FlatHashMap<std::pair<uint64_t, uint32_t>, State, Hasher> 80 state_by_session_and_pid_; 81 82 TraceProcessorContext* const context_; 83 }; 84 85 } // namespace perfetto::trace_processor 86 87 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_LEGACY_V8_CPU_PROFILE_TRACKER_H_ 88