1/*
2 * Copyright (C) 2014 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#ifndef TRACE_UTILS_H
17#define TRACE_UTILS_H
18
19#include <utils/Trace.h>
20
21#define ATRACE_FORMAT(fmt, ...) \
22    TraceUtils::TraceEnder __traceEnder = (TraceUtils::atraceFormatBegin(fmt, ##__VA_ARGS__), TraceUtils::TraceEnder())
23
24#define ATRACE_FORMAT_BEGIN(fmt, ...) \
25    TraceUtils::atraceFormatBegin(fmt, ##__VA_ARGS__)
26
27namespace android {
28namespace uirenderer {
29
30class TraceUtils {
31public:
32    class TraceEnder {
33    public:
34        ~TraceEnder() { ATRACE_END(); }
35    };
36
37    static void atraceFormatBegin(const char* fmt, ...) {
38        if (CC_LIKELY(!ATRACE_ENABLED())) return;
39
40        const int BUFFER_SIZE = 256;
41        va_list ap;
42        char buf[BUFFER_SIZE];
43
44        va_start(ap, fmt);
45        vsnprintf(buf, BUFFER_SIZE, fmt, ap);
46        va_end(ap);
47
48        ATRACE_BEGIN(buf);
49    }
50
51}; // class TraceUtils
52
53} /* namespace uirenderer */
54} /* namespace android */
55
56#endif /* TRACE_UTILS_H */
57