mirror of
https://github.com/matrix-construct/construct
synced 2024-11-02 11:58:53 +01:00
65 lines
2 KiB
C++
65 lines
2 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, 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) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_JS_TIMER_H
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namespace ircd {
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namespace js {
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struct timer
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{
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using steady_clock = std::chrono::steady_clock;
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using time_point = steady_clock::time_point;
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using callback = std::function<void () noexcept>;
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private:
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struct state
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{
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uint32_t sem;
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bool running;
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};
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std::mutex mutex;
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std::condition_variable cond;
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bool finished;
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callback timeout;
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time_point started;
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std::atomic<microseconds> limit;
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std::atomic<struct state> state;
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void handle(std::unique_lock<std::mutex> &lock);
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void worker();
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std::thread thread;
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public:
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void set(const microseconds &limit); // Set the time limit (only when not started)
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void set(const callback &timeout); // Set the callback (only when not started)
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bool cancel(); // Cancel (stop) the timer
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time_point start(); // Start the timer
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timer(const callback &timeout);
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~timer() noexcept;
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};
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} // namespace js
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} // namespace timer
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