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c21eb30a2b
Using QEventLoop works for everything but it breaks *one* little feature that we care about: automatically quitting the app when all windows have been closed. That only works if you drive the outermost main event loop with a QCoreApplication instead of a QEventLoop. This is unfortunate, as it complicates our API a little bit, but I'm sure we can think of a way to make this nicer someday. In order for QCoreApplication::exec() to process our own ThreadEventQueue, we now have a zero-timer that we kick whenever new events are posted to the thread queue.
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibCore/EventLoopImplementation.h>
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namespace Core {
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class EventLoopImplementationUnix final : public EventLoopImplementation {
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public:
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static NonnullOwnPtr<EventLoopImplementationUnix> create() { return make<EventLoopImplementationUnix>(); }
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EventLoopImplementationUnix();
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virtual ~EventLoopImplementationUnix();
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virtual int exec() override;
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virtual size_t pump(PumpMode) override;
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virtual void quit(int) override;
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virtual void wake() override;
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virtual void deferred_invoke(Function<void()>) override;
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virtual int register_timer(Object&, int milliseconds, bool should_reload, TimerShouldFireWhenNotVisible) override;
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virtual bool unregister_timer(int timer_id) override;
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virtual void register_notifier(Notifier&) override;
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virtual void unregister_notifier(Notifier&) override;
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virtual void did_post_event() override;
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virtual void unquit() override;
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virtual bool was_exit_requested() const override;
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virtual void notify_forked_and_in_child() override;
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virtual int register_signal(int signal_number, Function<void(int)> handler) override;
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virtual void unregister_signal(int handler_id) override;
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private:
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void wait_for_events(PumpMode);
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void dispatch_signal(int signal_number);
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static void handle_signal(int signal_number);
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static Optional<Time> get_next_timer_expiration();
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bool m_exit_requested { false };
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int m_exit_code { 0 };
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// The wake pipe of this event loop needs to be accessible from other threads.
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int (*m_wake_pipe_fds)[2];
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};
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}
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