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As means to pave the way for getting rid of global state within core, This eliminates kernel global state by removing all globals. Instead this introduces a KernelCore class which acts as a kernel instance. This instance lives in the System class, which keeps its lifetime contained to the lifetime of the System class. This also forces the kernel types to actually interact with the main kernel instance itself instead of having transient kernel state placed all over several translation units, keeping everything together. It also has a nice consequence of making dependencies much more explicit. This also makes our initialization a tad bit more correct. Previously we were creating a kernel process before the actual kernel was initialized, which doesn't really make much sense. The KernelCore class itself follows the PImpl idiom, which allows keeping all the implementation details sealed away from everything else, which forces the use of the exposed API and allows us to avoid any unnecessary inclusions within the main kernel header.
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common/common_types.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/wait_object.h"
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namespace Kernel {
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class KernelCore;
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class Event final : public WaitObject {
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public:
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/**
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* Creates an event
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* @param kernel The kernel instance to create this event under.
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* @param reset_type ResetType describing how to create event
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* @param name Optional name of event
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*/
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static SharedPtr<Event> Create(KernelCore& kernel, ResetType reset_type,
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std::string name = "Unknown");
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std::string GetTypeName() const override {
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return "Event";
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}
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std::string GetName() const override {
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return name;
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}
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static const HandleType HANDLE_TYPE = HandleType::Event;
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HandleType GetHandleType() const override {
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return HANDLE_TYPE;
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}
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ResetType GetResetType() const {
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return reset_type;
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}
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bool ShouldWait(Thread* thread) const override;
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void Acquire(Thread* thread) override;
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void WakeupAllWaitingThreads() override;
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void Signal();
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void Clear();
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private:
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explicit Event(KernelCore& kernel);
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~Event() override;
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ResetType reset_type; ///< Current ResetType
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bool signaled; ///< Whether the event has already been signaled
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std::string name; ///< Name of event (optional)
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};
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} // namespace Kernel
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