def962b6cb
Preparing for a variant of TimerEvent with coarse 1-second granularity, but cheaper (with a timer wheel).
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/*
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* Copyright (C) 2018 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SYSTEMD_WATCHDOG_HXX
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#define SYSTEMD_WATCHDOG_HXX
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#include "event/FineTimerEvent.hxx"
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namespace Systemd {
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/**
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* This class implements the systemd watchdog protocol; see
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* systemd.service(5) and sd_watchdog_enabled(3). If the watchdog is
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* not enabled, this class does nothing.
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*/
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class Watchdog {
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FineTimerEvent timer;
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Event::Duration interval;
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public:
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explicit Watchdog(EventLoop &_loop) noexcept;
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private:
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void OnTimer() noexcept;
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};
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} // namespace Systemd
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#endif
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