| /* |
| * Copyright 2021 Google, Inc |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <atomic> |
| #include <signal.h> |
| #include <time.h> |
| |
| class Watchdog { |
| private: |
| int timeout_; |
| timer_t timer_; |
| std::atomic<bool> timer_created_; |
| void (*callback_)(); |
| public: |
| Watchdog(int timeout, void (*callback)()) : |
| timeout_(timeout), timer_created_(false), callback_(callback) {} |
| |
| bool init(); |
| bool start(); |
| bool stop(); |
| // used by the watchdog_main |
| bool create_timer(sigset_t &sigset); |
| void bite() const { if (callback_) callback_(); } |
| }; |