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 #ifdef DFX_ENABLE_TRACE
16 #include "dfx_trace.h"
17 #include <cstdio>
18 #include <cstdarg>
19 #include <securec.h>
DfxStartTrace(const char * fmt,...)20 void DfxStartTrace(const char *fmt, ...)
21 {
22 va_list args;
23 va_start(args, fmt);
24 char traceName[TRACE_BUF_LEN] = {0};
25 int ret = vsnprintf_s(traceName, sizeof(traceName), sizeof(traceName) - 1, fmt, args);
26 va_end(args);
27 if (ret == -1) {
28 strcpy_s(traceName, TRACE_BUF_LEN, "DefaultTraceName");
29 }
30 StartTrace(HITRACE_TAG_APP, traceName);
31 }
32
FormatTraceName(char * name,size_t size,const char * fmt,...)33 void FormatTraceName(char *name, size_t size, const char *fmt, ...)
34 {
35 if (size < 1 || name == nullptr) {
36 return;
37 }
38 va_list args;
39 va_start(args, fmt);
40 int ret = vsnprintf_s(name, size, size - 1, fmt, args);
41 va_end(args);
42 std::string traceName = "DefaultTraceName";
43 if (ret == -1 && size > traceName.length()) {
44 ret = strcpy_s(name, size, traceName.c_str());
45 if (ret != 0) {
46 return;
47 }
48 }
49 }
50 #endif