1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef __DFX_TRACE_H__
16#define __DFX_TRACE_H__
17
18#include <cstdlib>
19#include <cstdio>
20#include <cstdint>
21#ifdef DFX_ENABLE_TRACE
22#include "hitrace_meter.h"
23constexpr int TRACE_BUF_LEN = 128;
24void DfxStartTrace(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
25void FormatTraceName(char *name, size_t size, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
26
27#define DFX_TRACE_SCOPED(fmt, ...) \
28    char traceName[TRACE_BUF_LEN] = {0}; \
29    FormatTraceName(traceName, TRACE_BUF_LEN, fmt, ##__VA_ARGS__); \
30    HitraceScoped trace(HITRACE_TAG_APP, traceName)
31
32#define DFX_TRACE_START(fmt, ...) DfxStartTrace(fmt, ##__VA_ARGS__)
33#define DFX_TRACE_FINISH(...) FinishTrace(HITRACE_TAG_APP)
34#else
35#define DFX_TRACE_SCOPED(fmt, ...)
36#define DFX_TRACE_START(fmt, ...)
37#define DFX_TRACE_FINISH(...)
38#endif
39
40#endif