platform_system_core/include/utils/Trace.h

70 lines
1.7 KiB
C++

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