1 /* 2 * Copyright (C) 2012 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 #ifndef ANDROID_TRACE_H 17 #define ANDROID_TRACE_H 18 #if defined(__ANDROID__) 19 #include <stdint.h> 20 #include <cutils/trace.h> 21 // See <cutils/trace.h> for more ATRACE_* macros. 22 // ATRACE_NAME traces from its location until the end of its enclosing scope. 23 #define _PASTE(x, y) x ## y 24 #define PASTE(x, y) _PASTE(x,y) 25 #define ATRACE_NAME(name) android::ScopedTrace PASTE(___tracer, __LINE__) (ATRACE_TAG, name) 26 // ATRACE_CALL is an ATRACE_NAME that uses the current function name. 27 #define ATRACE_CALL() ATRACE_NAME(__FUNCTION__) 28 namespace android { 29 class ScopedTrace { 30 public: ScopedTrace(uint64_t tag,const char * name)31 inline ScopedTrace(uint64_t tag, const char* name) : mTag(tag) { 32 atrace_begin(mTag, name); 33 } ~ScopedTrace()34 inline ~ScopedTrace() { 35 atrace_end(mTag); 36 } 37 private: 38 uint64_t mTag; 39 }; 40 } // namespace android 41 #else // !__ANDROID__ 42 #define ATRACE_NAME(...) 43 #define ATRACE_CALL() 44 #endif // __ANDROID__ 45 #endif // ANDROID_TRACE_H 46