1 /*
2  * Copyright (c) 2021-2023 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 DFX_SIGNAL_H
17 #define DFX_SIGNAL_H
18 
19 #include <csignal>
20 #include <cstdint>
21 #include <string>
22 
23 namespace OHOS {
24 namespace HiviewDFX {
25 class DfxSignal {
26 public:
DfxSignal(const int32_t signal)27     explicit DfxSignal(const int32_t signal) : signal_(signal) {}
28     ~DfxSignal() = default;
29 
30     static std::string PrintSignal(const siginfo_t &info);
31 
32     bool IsAvailable() const;
33     bool IsAddrAvailable() const;
34     bool IsPidAvailable() const;
GetSignal()35     int32_t GetSignal() const
36     {
37         return signal_;
38     }
39 
40 private:
41     DfxSignal() = delete;
42 
43     static std::string FormatSignalName(const int32_t signal);
44     static std::string FormatCodeName(const int32_t signal, const int32_t signalCode);
45     static std::string FormatSIGBUSCodeName(const int32_t signalCode);
46     static std::string FormatSIGILLCodeName(const int32_t signalCode);
47     static std::string FormatSIGFPECodeName(const int32_t signalCode);
48     static std::string FormatSIGSEGVCodeName(const int32_t signalCode);
49     static std::string FormatSIGTRAPCodeName(const int32_t signalCode);
50     static std::string FormatCommonSignalCodeName(const int32_t signalCode);
51 private:
52     int32_t signal_ = 0;
53 };
54 } // namespace Dfx
55 } // namespace OHOS
56 #endif
57