1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SIMPLE_PERF_SCOPED_SIGNAL_HANDLER_H_ 18 #define SIMPLE_PERF_SCOPED_SIGNAL_HANDLER_H_ 19 20 #include <signal.h> 21 22 #include <vector> 23 24 class ScopedSignalHandler { 25 public: 26 ScopedSignalHandler(const std::vector<int>& signums, void (*handler)(int)) { 27 for (auto& sig : signums) { 28 sig_t old_handler = signal(sig, handler); 29 saved_signal_handlers_.push_back(std::make_pair(sig, old_handler)); 30 } 31 } 32 33 ~ScopedSignalHandler() { 34 for (auto& pair : saved_signal_handlers_) { 35 signal(pair.first, pair.second); 36 } 37 } 38 39 private: 40 std::vector<std::pair<int, sig_t>> saved_signal_handlers_; 41 }; 42 43 #endif // SIMPLE_PERF_SCOPED_SIGNAL_HANDLER_H_ 44
