a59c471e5a
Manages the event file descriptor owned by EventDispatcherPoll by UniqueFD. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
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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* event_dispatcher_poll.h - Poll-based event dispatcher
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*/
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#pragma once
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#include <list>
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#include <map>
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#include <vector>
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#include <libcamera/base/private.h>
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#include <libcamera/base/event_dispatcher.h>
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#include <libcamera/base/unique_fd.h>
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struct pollfd;
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namespace libcamera {
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class EventNotifier;
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class Timer;
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class EventDispatcherPoll final : public EventDispatcher
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{
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public:
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EventDispatcherPoll();
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~EventDispatcherPoll();
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void registerEventNotifier(EventNotifier *notifier);
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void unregisterEventNotifier(EventNotifier *notifier);
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void registerTimer(Timer *timer);
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void unregisterTimer(Timer *timer);
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void processEvents();
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void interrupt();
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private:
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struct EventNotifierSetPoll {
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short events() const;
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EventNotifier *notifiers[3];
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};
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int poll(std::vector<struct pollfd> *pollfds);
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void processInterrupt(const struct pollfd &pfd);
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void processNotifiers(const std::vector<struct pollfd> &pollfds);
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void processTimers();
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std::map<int, EventNotifierSetPoll> notifiers_;
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std::list<Timer *> timers_;
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UniqueFD eventfd_;
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bool processingEvents_;
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};
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} /* namespace libcamera */
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