suyu/src/core/hle/kernel/mutex.h

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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
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#pragma once
#include "common/common_types.h"
union ResultCode;
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namespace Core {
class System;
}
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namespace Kernel {
class Mutex final {
public:
explicit Mutex(Core::System& system);
~Mutex();
/// Flag that indicates that a mutex still has threads waiting for it.
static constexpr u32 MutexHasWaitersFlag = 0x40000000;
/// Mask of the bits in a mutex address value that contain the mutex owner.
static constexpr u32 MutexOwnerMask = 0xBFFFFFFF;
/// Attempts to acquire a mutex at the specified address.
ResultCode TryAcquire(VAddr address, Handle holding_thread_handle,
Handle requesting_thread_handle);
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/// Unlocks a mutex for owner at address
std::pair<ResultCode, std::shared_ptr<Thread>> Unlock(std::shared_ptr<Thread> owner, VAddr address);
/// Releases the mutex at the specified address.
ResultCode Release(VAddr address);
private:
Core::System& system;
};
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} // namespace Kernel