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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "common/polyfill_thread.h"
#include "common/thread.h"
#include "core/hle/service/kernel_helpers.h"
#include "core/hle/service/os/event.h"
#include "core/hle/service/os/multi_wait.h"
namespace Core {
class System;
}
namespace Service::AM {
struct Applet;
class ProcessHolder;
class WindowSystem;
class EventObserver {
public:
explicit EventObserver(Core::System& system, WindowSystem& window_system);
~EventObserver();
void TrackAppletProcess(Applet& applet);
void RequestUpdate();
private:
void LinkDeferred();
MultiWaitHolder* WaitSignaled();
void Process(MultiWaitHolder* holder);
bool WaitAndProcessImpl();
void LoopProcess();
private:
void OnWakeupEvent(MultiWaitHolder* holder);
void OnProcessEvent(ProcessHolder* holder);
private:
void DestroyAppletProcessHolderLocked(ProcessHolder* holder);
private:
void ThreadFunc();
private:
// System reference and context.
Core::System& m_system;
KernelHelpers::ServiceContext m_context;
// Window manager.
WindowSystem& m_window_system;
// Guest event handle to wake up the event loop processor.
Event m_wakeup_event;
MultiWaitHolder m_wakeup_holder;
// Mutex to protect remaining members.
std::mutex m_lock{};
// List of owned process holders.
Common::IntrusiveListBaseTraits<ProcessHolder>::ListType m_process_holder_list;
// Multi-wait objects for new tasks.
MultiWait m_multi_wait;
MultiWait m_deferred_wait_list;
// Processing thread.
std::thread m_thread{};
std::stop_source m_stop_source{};
};
} // namespace Service::AM
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