ladybird/Userland/Libraries/LibCore/EventLoopImplementation.h
Andreas Kling 16c47ccff6 LibCore: Big first step towards pluggable Core::EventLoop
The EventLoop is now a wrapper around an EventLoopImplementation.
Our old EventLoop code has moved into EventLoopImplementationUnix and
continues to work as before.

The main difference is that all the separate thread_local variables have
been collected into a file-local ThreadData data structure.

The goal here is to allow running Core::EventLoop with a totally
different backend, such as Qt for Ladybird.
2023-04-25 14:48:40 +02:00

53 lines
1.4 KiB
C++

/*
* Copyright (c) 2022-2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibCore/Forward.h>
namespace Core {
class ThreadEventQueue;
class EventLoopImplementation {
public:
virtual ~EventLoopImplementation();
enum class PumpMode {
WaitForEvents,
DontWaitForEvents,
};
void post_event(Object& receiver, NonnullOwnPtr<Event>&&);
virtual int exec() = 0;
virtual size_t pump(PumpMode) = 0;
virtual void quit(int) = 0;
virtual void wake() = 0;
virtual void deferred_invoke(Function<void()>) = 0;
virtual int register_timer(Object&, int milliseconds, bool should_reload, TimerShouldFireWhenNotVisible) = 0;
virtual bool unregister_timer(int timer_id) = 0;
virtual void register_notifier(Notifier&) = 0;
virtual void unregister_notifier(Notifier&) = 0;
// FIXME: These APIs only exist for obscure use-cases inside SerenityOS. Try to get rid of them.
virtual void unquit() = 0;
virtual bool was_exit_requested() const = 0;
virtual void notify_forked_and_in_child() = 0;
virtual int register_signal(int signal_number, Function<void(int)> handler) = 0;
virtual void unregister_signal(int handler_id) = 0;
protected:
EventLoopImplementation();
ThreadEventQueue& m_thread_event_queue;
};
}