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https://github.com/LadybirdBrowser/ladybird.git
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bffcb3e92a
Enable the LOCK_DEBUG functionality for these new APIs, as it looks like we want to move the whole system to use this in the not so distant future. :^)
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/StdLibExtras.h>
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#include <Kernel/Locking/Mutex.h>
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namespace Kernel {
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template<typename T, LockMode LockingMode>
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class LockedResource {
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AK_MAKE_NONCOPYABLE(LockedResource);
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public:
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LockedResource(T* value, Mutex& mutex, LockLocation const& location)
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: m_value(value)
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, m_mutex_locker(mutex, LockingMode, location)
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{
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}
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ALWAYS_INLINE T const* operator->() const { return m_value; }
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ALWAYS_INLINE T const& operator*() const { return *m_value; }
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ALWAYS_INLINE T* operator->() requires(!IsConst<T>) { return m_value; }
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ALWAYS_INLINE T& operator*() requires(!IsConst<T>) { return *m_value; }
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ALWAYS_INLINE T const* get() const { return m_value; }
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ALWAYS_INLINE T* get() requires(!IsConst<T>) { return m_value; }
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private:
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T* m_value;
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MutexLocker m_mutex_locker;
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};
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class ContendedResource {
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template<typename, LockMode>
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friend class LockedResource;
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AK_MAKE_NONCOPYABLE(ContendedResource);
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AK_MAKE_NONMOVABLE(ContendedResource);
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public:
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ContendedResource() = default;
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protected:
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mutable Mutex m_mutex;
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};
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}
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