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 #ifdef HAVE_ANDROID_OS 21 22 #include <fcntl.h> 23 #include <stdint.h> 24 #include <stdio.h> 25 #include <string.h> 26 #include <sys/stat.h> 27 #include <sys/types.h> 28 #include <unistd.h> 29 30 #include <cutils/compiler.h> 31 #include <utils/threads.h> 32 #include <cutils/trace.h> 33 34 // See <cutils/trace.h> for more ATRACE_* macros. 35 36 // ATRACE_NAME traces the beginning and end of the current scope. To trace 37 // the correct start and end times this macro should be declared first in the 38 // scope body. 39 #define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name) 40 // ATRACE_CALL is an ATRACE_NAME that uses the current function name. 41 #define ATRACE_CALL() ATRACE_NAME(__FUNCTION__) 42 43 namespace android { 44 45 class ScopedTrace { 46 public: 47 inline ScopedTrace(uint64_t tag, const char* name) 48 : mTag(tag) { 49 atrace_begin(mTag,name); 50 } 51 52 inline ~ScopedTrace() { 53 atrace_end(mTag); 54 } 55 56 private: 57 uint64_t mTag; 58 }; 59 60 }; // namespace android 61 62 #else // HAVE_ANDROID_OS 63 64 #define ATRACE_NAME(...) 65 #define ATRACE_CALL() 66 67 #endif // HAVE_ANDROID_OS 68 69 #endif // ANDROID_TRACE_H 70
