PooledSyncEvent.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "PlatformProcess.h"
 
// An RAII wrapper around FPlatformProcess::GetSynchEventFromPool/ReturnSynchEventToPool.
struct FPooledSyncEvent
{
    explicit FPooledSyncEvent(bool bIsManualReset = false)
    {
        Event = FPlatformProcess::GetSynchEventFromPool(bIsManualReset);
    }
    ~FPooledSyncEvent()
    {
        *this = nullptr;
    }
 
    // Non-copyable
    FPooledSyncEvent(FPooledSyncEvent&&) = delete;
    FPooledSyncEvent(const FPooledSyncEvent&) = delete;
    FPooledSyncEvent& operator=(FPooledSyncEvent&&) = delete;
    FPooledSyncEvent& operator=(const FPooledSyncEvent&) = delete;
 
    explicit operator bool() const
    {
        return !!this->Event;
    }
 
    FEvent* operator->() const
    {
        return this->Event;
    }
 
    FPooledSyncEvent& operator=(TYPE_OF_NULLPTR)
    {
        if (Event)
        {
            FPlatformProcess::ReturnSynchEventToPool(Event);
            Event = nullptr;
        }
        return *this;
    }
 
    FEvent* Event;
};