43 lines
1.1 KiB
C++
43 lines
1.1 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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union ResultCode;
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namespace Core {
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class System;
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}
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namespace Kernel {
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class Mutex final {
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public:
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explicit Mutex(Core::System& system);
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~Mutex();
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/// Flag that indicates that a mutex still has threads waiting for it.
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static constexpr u32 MutexHasWaitersFlag = 0x40000000;
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/// Mask of the bits in a mutex address value that contain the mutex owner.
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static constexpr u32 MutexOwnerMask = 0xBFFFFFFF;
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/// Attempts to acquire a mutex at the specified address.
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ResultCode TryAcquire(VAddr address, Handle holding_thread_handle,
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Handle requesting_thread_handle);
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/// Unlocks a mutex for owner at address
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std::pair<ResultCode, std::shared_ptr<Thread>> Unlock(std::shared_ptr<Thread> owner,
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VAddr address);
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/// Releases the mutex at the specified address.
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ResultCode Release(VAddr address);
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private:
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Core::System& system;
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};
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} // namespace Kernel
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