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"
23 constexpr int TRACE_BUF_LEN = 128;
24 void DfxStartTrace(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
25 void 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