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suyu/src/core/hle/kernel/readable_event.h
2020-02-11 18:47:31 -04:00

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C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/synchronization_object.h"
union ResultCode;
namespace Kernel {
class KernelCore;
class WritableEvent;
class ReadableEvent final : public SynchronizationObject {
friend class WritableEvent;
public:
~ReadableEvent() override;
std::string GetTypeName() const override {
return "ReadableEvent";
}
std::string GetName() const override {
return name;
}
static constexpr HandleType HANDLE_TYPE = HandleType::ReadableEvent;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
bool ShouldWait(const Thread* thread) const override;
void Acquire(Thread* thread) override;
/// Unconditionally clears the readable event's state.
void Clear();
/// Clears the readable event's state if and only if it
/// has already been signaled.
///
/// @pre The event must be in a signaled state. If this event
/// is in an unsignaled state and this function is called,
/// then ERR_INVALID_STATE will be returned.
ResultCode Reset();
void Signal() override;
private:
explicit ReadableEvent(KernelCore& kernel);
std::string name; ///< Name of event (optional)
};
} // namespace Kernel