michael@0: /*
michael@0:  * Copyright (C) 2012 The Android Open Source Project
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *      http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #ifndef ANDROID_TRACE_H
michael@0: #define ANDROID_TRACE_H
michael@0: 
michael@0: #include <fcntl.h>
michael@0: #include <stdint.h>
michael@0: #include <stdio.h>
michael@0: #include <string.h>
michael@0: #include <sys/stat.h>
michael@0: #include <sys/types.h>
michael@0: #include <unistd.h>
michael@0: 
michael@0: #include <cutils/compiler.h>
michael@0: #include <utils/threads.h>
michael@0: #include "cutils_trace.h"
michael@0: 
michael@0: // See <cutils/trace.h> for more ATRACE_* macros.
michael@0: 
michael@0: // ATRACE_NAME traces the beginning and end of the current scope.  To trace
michael@0: // the correct start and end times this macro should be declared first in the
michael@0: // scope body.
michael@0: #define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name)
michael@0: // ATRACE_CALL is an ATRACE_NAME that uses the current function name.
michael@0: #define ATRACE_CALL() ATRACE_NAME(__FUNCTION__)
michael@0: 
michael@0: namespace android {
michael@0: 
michael@0: class ScopedTrace {
michael@0: public:
michael@0: inline ScopedTrace(uint64_t tag, const char* name)
michael@0:     : mTag(tag) {
michael@0: #ifdef HAVE_ANDROID_OS
michael@0:     atrace_begin(mTag,name);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: inline ~ScopedTrace() {
michael@0: #ifdef HAVE_ANDROID_OS
michael@0:     atrace_end(mTag);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: private:
michael@0:     uint64_t mTag;
michael@0: };
michael@0: 
michael@0: }; // namespace android
michael@0: 
michael@0: #endif // ANDROID_TRACE_H