Trace.h revision 5b2d36e38adcc09e72f81b06c324bf3c5c92e043 
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#include <fcntl.h>
21#include <stdint.h>
22#include <stdio.h>
23#include <string.h>
24#include <sys/stat.h>
25#include <sys/types.h>
26#include <unistd.h>
27
28#include <cutils/compiler.h>
29#include <utils/threads.h>
30#include <cutils/trace.h>
31
32// See <cutils/trace.h> for more ATRACE_* macros.
33
34// ATRACE_CALL traces the beginning and end of the current function.  To trace
35// the correct start and end times this macro should be the first line of the
36// function body.
37#define ATRACE_CALL() android::ScopedTrace ___tracer(ATRACE_TAG, __FUNCTION__)
38
39// ATRACE_NAME traces the beginning and end of the current function.  To trace
40// the correct start and end times this macro should be the first line of the
41// function body.
42#define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name)
43
44namespace android {
45
46class ScopedTrace {
47public:
48inline ScopedTrace(uint64_t tag, const char* name)
49    : mTag(tag) {
50    atrace_begin(mTag,name);
51}
52
53inline ~ScopedTrace() {
54    atrace_end(mTag);
55}
56
57private:
58    uint64_t mTag;
59};
60
61}; // namespace android
62
63#endif // ANDROID_TRACE_H
64