1 /* 2 ** 3 ** Copyright 2015, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #ifndef SYSTEM_EXTRAS_PERFPROFD_PERFPROFDCORE_H_ 19 #define SYSTEM_EXTRAS_PERFPROFD_PERFPROFDCORE_H_ 20 21 #include <functional> 22 #include <memory> 23 24 #include "perfprofd_record-fwd.h" 25 26 struct Config; 27 28 namespace perfprofd { 29 struct Symbolizer; 30 } 31 32 void CommonInit(uint32_t use_fixed_seed, const char* dest_dir); 33 34 // 35 // This enumeration holds the results of what happened when on an 36 // attempted perf profiling run. 37 // 38 typedef enum { 39 40 // Success 41 OK_PROFILE_COLLECTION, 42 43 // Fork system call failed (lo mem?) 44 ERR_FORK_FAILED, 45 46 // Perf ran but crashed or returned a bad exit status 47 ERR_PERF_RECORD_FAILED, 48 49 // The perf.data encoding process failed somehow 50 ERR_PERF_ENCODE_FAILED, 51 52 // We tried to open the output file perf.data.encoded but the open failed 53 ERR_OPEN_ENCODED_FILE_FAILED, 54 55 // Error while writing perf.data.encoded 56 ERR_WRITE_ENCODED_FILE_FAILED 57 } PROFILE_RESULT; 58 59 // 60 // Given a full path to a perf.data file specified by "data_file_path", 61 // read/summarize/encode the contents into a new file specified 62 // by "encoded_file_path". Return status indicates whether the operation 63 // was successful (either OK_PROFILE_COLLECTION or an error of some sort). 64 // 65 PROFILE_RESULT encode_to_proto(const std::string &data_file_path, 66 const char *encoded_file_path, 67 const Config& config, 68 unsigned cpu_utilization, 69 perfprofd::Symbolizer* symbolizer); 70 71 using HandlerFn = std::function<bool(android::perfprofd::PerfprofdRecord* proto, 72 Config* config)>; 73 74 void ProfilingLoop(Config& config, HandlerFn handler); 75 void ProfilingLoop(std::function<Config*()> config_fn, 76 std::function<void()> update_fn, 77 HandlerFn handler); 78 79 // 80 // Exposed for unit testing 81 // 82 extern unsigned collect_cpu_utilization(); 83 extern bool get_booting(); 84 extern bool get_charging(); 85 extern bool get_camera_active(); 86 87 bool IsDebugBuild(); 88 89 #endif 90