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_TRACECONV_PPROF_READER_H_ 18 #define SRC_TRACECONV_PPROF_READER_H_ 19 20 #include <cstdint> 21 22 #include "protos/third_party/pprof/profile.gen.h" 23 24 namespace perfetto { 25 namespace pprof { 26 27 class PprofProfileReader { 28 public: 29 explicit PprofProfileReader(const std::string& path); 30 31 uint64_t get_sample_count() const; 32 33 std::string get_string_by_index(uint64_t string_index) const; 34 35 int64_t get_string_index(const std::string& str) const; 36 37 uint64_t find_location_id(const std::string& function_name) const; 38 39 std::vector<std::string> get_sample_function_names( 40 const third_party::perftools::profiles::gen::Sample& sample) const; 41 42 // Finds all samples from the profile where its location equals to the passed 43 // function name and returns them. It looks for the last (the most specific) 44 // function name to be equal to last_function_name 45 std::vector<third_party::perftools::profiles::gen::Sample> get_samples( 46 const std::string& last_function_name) const; 47 48 third_party::perftools::profiles::gen::Location find_location( 49 const uint64_t location_id) const; 50 51 third_party::perftools::profiles::gen::Function find_function( 52 const uint64_t function_id) const; 53 54 uint64_t get_sample_value_index(const std::string& value_name) const; 55 56 int64_t get_samples_value_sum(const std::string& last_function_name, 57 const std::string& value_name) const; 58 59 private: 60 third_party::perftools::profiles::gen::Profile profile_; 61 }; 62 63 } // namespace pprof 64 } // namespace perfetto 65 66 #endif // SRC_TRACECONV_PPROF_READER_H_ 67