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