36c35345fa
Users of the Timer class may benefit from retrieving the timer deadline after it times out. This is currently not possible as the deadline is reset to 0 when the timer times out or is stopped. Fix this by not resetting the deadline, and adding a new running_ field to the Timer class to implement isRunning(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
49 lines
916 B
C++
49 lines
916 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* timer.h - Generic timer
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*/
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#ifndef __LIBCAMERA_TIMER_H__
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#define __LIBCAMERA_TIMER_H__
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#include <chrono>
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#include <cstdint>
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#include <libcamera/object.h>
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#include <libcamera/signal.h>
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namespace libcamera {
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class Message;
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class Timer : public Object
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{
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public:
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Timer(Object *parent = nullptr);
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~Timer();
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void start(unsigned int msec) { start(std::chrono::milliseconds(msec)); }
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void start(std::chrono::milliseconds duration);
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void stop();
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bool isRunning() const;
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std::chrono::steady_clock::time_point deadline() const { return deadline_; }
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Signal<Timer *> timeout;
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protected:
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void message(Message *msg) override;
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private:
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void registerTimer();
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void unregisterTimer();
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bool running_;
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std::chrono::steady_clock::time_point deadline_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_TIMER_H__ */
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