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https://github.com/LadybirdBrowser/ladybird.git
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96ce468b60
Add a thread-safe deferred_invoke() API on WeakEventLoopReference that queues work onto the owning thread's event queue and wakes that thread via EventLoopManager hooks. This avoids calling wake() from foreign threads during teardown. Implement current_thread_handle()/wake_thread() in each backend and track per-thread data so handles are validated before waking: - Unix: wake via per-thread wake pipe - Windows: wake via thread wake event - macOS: wake via stored CFRunLoopRef - Qt: wake via event target or QEventLoop::wakeUp() - Android: wake via stored ALooper
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.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 <AK/NonnullOwnPtr.h>
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#include <LibCore/EventLoopImplementation.h>
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namespace Core {
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class EventLoopManagerWindows final : public EventLoopManager {
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public:
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virtual ~EventLoopManagerWindows() override = default;
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virtual NonnullOwnPtr<EventLoopImplementation> make_implementation() override;
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virtual intptr_t register_timer(EventReceiver&, int milliseconds, bool should_reload) override;
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virtual void unregister_timer(intptr_t 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 EventLoopThreadHandle current_thread_handle() override;
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virtual void wake_thread(EventLoopThreadHandle) 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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};
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class EventLoopImplementationWindows final : public EventLoopImplementation {
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public:
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static NonnullOwnPtr<EventLoopImplementationWindows> create() { return make<EventLoopImplementationWindows>(); }
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EventLoopImplementationWindows();
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virtual ~EventLoopImplementationWindows() override;
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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 bool was_exit_requested() const override { return m_exit_requested; }
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private:
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bool m_exit_requested { false };
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int m_exit_code { 0 };
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// The wake event handle of this event loop needs to be accessible from other threads.
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void*& m_wake_event;
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};
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using EventLoopManagerPlatform = EventLoopManagerWindows;
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}
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