1 /*
2 * Copyright (c) 2022-2023 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 #include "b_process/b_guard_signal.h"
17
18 #include <sstream>
19
20 #include "b_error/b_error.h"
21 #include "filemgmt_libhilog.h"
22
23 namespace OHOS::FileManagement::Backup {
24 using namespace std;
BGuardSignal(int sig)25 BGuardSignal::BGuardSignal(int sig) : sig_(sig)
26 {
27 prevHandler_ = signal(sig, SIG_DFL);
28 if (prevHandler_ == SIG_ERR) {
29 stringstream ss;
30 ss << "Invalid sigal " << sig << ", received error " << system_category().message(errno);
31 throw BError(BError::Codes::UTILS_INVAL_PROCESS_ARG, ss.str());
32 }
33 }
34
~BGuardSignal()35 BGuardSignal::~BGuardSignal()
36 {
37 if (signal(sig_, prevHandler_) == SIG_ERR) {
38 HILOGE("Failed to reset sig %{public}d", sig_);
39 }
40 }
41 } // namespace OHOS::FileManagement::Backup