70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
// Copyright (c) Wojciech Figat. All rights reserved.
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#pragma once
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#if PLATFORM_WIN32
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#include "WindowsMinimal.h"
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class Win32ConditionVariable;
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/// <summary>
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/// Win32 implementation of a critical section. Shared between Windows and UWP platforms.
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/// </summary>
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class FLAXENGINE_API Win32CriticalSection
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{
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friend Win32ConditionVariable;
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private:
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mutable Windows::CRITICAL_SECTION _criticalSection;
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private:
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Win32CriticalSection(const Win32CriticalSection&);
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Win32CriticalSection& operator=(const Win32CriticalSection&);
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public:
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/// <summary>
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/// Initializes a new instance of the <see cref="Win32CriticalSection"/> class.
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/// </summary>
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__forceinline Win32CriticalSection()
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{
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Windows::InitializeCriticalSectionEx(&_criticalSection, 4000, 0x01000000);
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}
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/// <summary>
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/// Finalizes an instance of the <see cref="Win32CriticalSection"/> class.
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/// </summary>
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__forceinline ~Win32CriticalSection()
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{
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Windows::DeleteCriticalSection(&_criticalSection);
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}
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public:
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/// <summary>
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/// Locks the critical section.
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/// </summary>
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__forceinline void Lock() const
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{
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Windows::EnterCriticalSection(&_criticalSection);
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}
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/// <summary>
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/// Attempts to enter a critical section without blocking. If the call is successful, the calling thread takes ownership of the critical section.
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/// </summary>
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/// <returns>True if calling thread took ownership of the critical section.</returns>
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__forceinline bool TryLock() const
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{
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return Windows::TryEnterCriticalSection(&_criticalSection) != 0;
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}
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/// <summary>
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/// Releases the lock on the critical section.
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/// </summary>
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__forceinline void Unlock() const
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{
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Windows::LeaveCriticalSection(&_criticalSection);
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}
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};
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#endif
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