1 // Copyright (C) 2019 The Android Open Source Project 2 // Copyright (C) 2019 Google Inc. 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 #pragma once 16 17 // Library to perform tracing. Talks to platform-specific 18 // tracing libraries. 19 20 namespace gfxstream { 21 namespace guest { 22 23 bool isTracingEnabled(); 24 25 class ScopedTraceGuest { 26 public: ScopedTraceGuest(const char * name)27 ScopedTraceGuest(const char* name) : name_(name) { 28 beginTraceImpl(name_); 29 } 30 ~ScopedTraceGuest()31 ~ScopedTraceGuest() { 32 endTraceImpl(name_); 33 } 34 private: 35 void beginTraceImpl(const char* name); 36 void endTraceImpl(const char* name); 37 38 const char* const name_; 39 }; 40 41 } // namespace base 42 } // namespace android 43 44 #define __AEMU_GENSYM2(x,y) x##y 45 #define __AEMU_GENSYM1(x,y) __AEMU_GENSYM2(x,y) 46 #define AEMU_GENSYM(x) __AEMU_GENSYM1(x,__COUNTER__) 47 48 #define AEMU_SCOPED_TRACE(tag) __attribute__ ((unused)) gfxstream::guest::ScopedTraceGuest AEMU_GENSYM(aemuScopedTrace_)(tag) 49