TransactionallySafeRWLock.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "AutoRTFM.h"
 
#if UE_AUTORTFM
#include "Async/TransactionallySafeSharedMutex.h"
#else
#include "HAL/CriticalSection.h"
#endif // UE_AUTORTFM
 
 
#if UE_AUTORTFM
 
// Transactionally-safe RWLocks are implemented in terms of FTransactionallySafeSharedMutex.
// Unfortunately, the method names differ slightly between RWLock and SharedMutex, so we adapt the names here.
class FTransactionallySafeRWLock : ::UE::FTransactionallySafeSharedMutex
{
private:
    using Super = ::UE::FTransactionallySafeSharedMutex;
 
public:
    void ReadLock()
    {
        Super::LockShared();
    }
 
    void ReadUnlock()
    {
        Super::UnlockShared();
    }
 
    void WriteLock()
    {
        Super::Lock();
    }
 
    void WriteUnlock()
    {
        Super::Unlock();
    }
 
    bool TryWriteLock()
    {
        return Super::TryLock();
    }
};
 
#else
using FTransactionallySafeRWLock = ::FRWLock;
#endif