1 /*
2  * Copyright (c) 2022-2024 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 
16 #ifndef UNWIND_LOCAL_THREAD_H
17 #define UNWIND_LOCAL_THREAD_H
18 
19 #include <cinttypes>
20 #include <memory>
21 #include <vector>
22 
23 #include "dfx_frame.h"
24 #include "unwinder.h"
25 
26 namespace OHOS {
27 namespace HiviewDFX {
28 constexpr int32_t BACKTRACE_CURRENT_THREAD = -1;
29 
30 class BacktraceLocalThread {
31 public:
32     explicit BacktraceLocalThread(int32_t tid, std::shared_ptr<Unwinder> unwinder);
33     ~BacktraceLocalThread();
34 
35     bool Unwind(bool fast = false, size_t maxFrameNum = DEFAULT_MAX_FRAME_NUM, size_t skipFrameNum = 0);
36 
37     const std::vector<DfxFrame>& GetFrames() const;
38     void SetFrames(const std::vector<DfxFrame>& frames);
39     std::string GetFormattedStr(bool withThreadName = false);
40 
41 private:
42     int32_t tid_;
43     std::vector<DfxFrame> frames_;
44     std::shared_ptr<Unwinder> unwinder_;
45 };
46 } // namespace HiviewDFX
47 } // namespace OHOS
48 #endif // UNWIND_LOCAL_THREAD_H
49