GenericPlatformMutex.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Misc/Timespan.h"
 
namespace UE
{
 
template <class MutexType>
class TGenericPlatformSharedMutex
{
public:
    TGenericPlatformSharedMutex(const TGenericPlatformSharedMutex&) = delete;
    TGenericPlatformSharedMutex& operator=(const TGenericPlatformSharedMutex&) = delete;
 
    TGenericPlatformSharedMutex() = default;
    ~TGenericPlatformSharedMutex() = default;
 
    UE_FORCEINLINE_HINT bool TryLock()
    {
        return Mutex.TryLock();
    }
 
    UE_FORCEINLINE_HINT void Lock()
    {
        Mutex.Lock();
    }
 
    UE_FORCEINLINE_HINT void Unlock()
    {
        Mutex.Unlock();
    }
 
    UE_FORCEINLINE_HINT bool TryLockShared()
    {
        return Mutex.TryLock();
    }
 
    UE_FORCEINLINE_HINT void LockShared()
    {
        Mutex.Lock();
    }
 
    UE_FORCEINLINE_HINT void UnlockShared()
    {
        Mutex.Unlock();
    }
 
private:
    MutexType Mutex;
};
 
class FPlatformSystemWideMutexNotImplemented
{
public:
    FPlatformSystemWideMutexNotImplemented(const FPlatformSystemWideMutexNotImplemented&) = delete;
    FPlatformSystemWideMutexNotImplemented& operator=(const FPlatformSystemWideMutexNotImplemented&) = delete;
 
    CORE_API explicit FPlatformSystemWideMutexNotImplemented(const FString& Name, FTimespan Timeout = FTimespan::Zero());
 
    ~FPlatformSystemWideMutexNotImplemented() = default;
 
    bool IsValid() const
    {
        return false;
    }
 
    void Release()
    {
    }
};
 
} // UE