1 // Copyright 2020 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 #include <functional> 15 #include <cstdint> 16 17 // Convenient declspec dllexport macro for android-emu-shared on Windows 18 #ifndef PERFETTO_TRACING_ONLY_EXPORT 19 #ifdef _MSC_VER 20 #define PERFETTO_TRACING_ONLY_EXPORT __declspec(dllexport) 21 #else // _MSC_VER 22 #define PERFETTO_TRACING_ONLY_EXPORT __attribute__((visibility("default"))) 23 #endif // !_MSC_VER 24 #endif // !PERFETTO_TRACING_ONLY_EXPORT 25 26 namespace virtualdeviceperfetto { 27 28 struct VirtualDeviceTraceConfig { 29 bool initialized; 30 bool tracingDisabled; 31 uint32_t packetsWritten; 32 bool sequenceIdWritten; 33 uint32_t currentInterningId; 34 uint32_t currentThreadId; 35 const char* hostFilename; 36 const char* guestFilename; 37 const char* combinedFilename; 38 uint64_t hostStartTime; 39 uint64_t guestStartTime; 40 uint64_t guestTimeDiff; 41 uint32_t perThreadStorageMb; 42 }; 43 44 PERFETTO_TRACING_ONLY_EXPORT void setTraceConfig(std::function<void(VirtualDeviceTraceConfig&)>); 45 PERFETTO_TRACING_ONLY_EXPORT VirtualDeviceTraceConfig queryTraceConfig(); 46 47 // An optimization to have faster queries of whether tracing is enabled. 48 PERFETTO_TRACING_ONLY_EXPORT void initialize(const bool** tracingDisabledPtr); 49 50 PERFETTO_TRACING_ONLY_EXPORT void enableTracing(); 51 PERFETTO_TRACING_ONLY_EXPORT void disableTracing(); 52 53 PERFETTO_TRACING_ONLY_EXPORT void beginTrace(const char* eventName); 54 PERFETTO_TRACING_ONLY_EXPORT void endTrace(); 55 PERFETTO_TRACING_ONLY_EXPORT void traceCounter(const char* name, int64_t value); 56 57 PERFETTO_TRACING_ONLY_EXPORT void setGuestTime(uint64_t guestTime); 58 59 } // namespace virtualdeviceperfetto 60