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 17 #ifndef ANDROID_TRACE_H 18 #define ANDROID_TRACE_H 19 20 #if defined(__ANDROID__) 21 22 #include <stdint.h> 23 24 #include <cutils/trace.h> 25 26 // See <cutils/trace.h> for more ATRACE_* macros. 27 28 // ATRACE_NAME traces from its location until the end of its enclosing scope. 29 #define _PASTE(x, y) x ## y 30 #define PASTE(x, y) _PASTE(x,y) 31 #define ATRACE_NAME(name) android::ScopedTrace PASTE(___tracer, __LINE__) (ATRACE_TAG, name) 32 33 // ATRACE_CALL is an ATRACE_NAME that uses the current function name. 34 #define ATRACE_CALL() ATRACE_NAME(__FUNCTION__) 35 36 namespace android { 37 38 class ScopedTrace { 39 public: 40 inline ScopedTrace(uint64_t tag, const char* name) : mTag(tag) { 41 atrace_begin(mTag, name); 42 } 43 44 inline ~ScopedTrace() { 45 atrace_end(mTag); 46 } 47 48 private: 49 uint64_t mTag; 50 }; 51 52 }; // namespace android 53 54 #else // !__ANDROID__ 55 56 #define ATRACE_NAME(...) 57 #define ATRACE_CALL() 58 59 #endif // __ANDROID__ 60 61 #endif // ANDROID_TRACE_H 62
