C++ UScriptStruct::InheritedCppStructOps方法代码示例

//.........这里部分代码省略.........
					{
						UE_LOG(LogRep, Error, TEXT("Element index too large %s in %s"), *ReplicatedProp->GetName(), *Object->GetFullName());
						return false;
					}
				}

				// Pointer to destination.
				uint8* Data = ReplicatedProp->ContainerPtrToValuePtr<uint8>((uint8*)Object, Element);
				TArray<uint8>	MetaData;
				const PTRINT DataOffset = Data - (uint8*)Object;

				// Receive custom delta property.
				UStructProperty * StructProperty = Cast< UStructProperty >( ReplicatedProp );

				if ( StructProperty == NULL )
				{
					// This property isn't custom delta
					UE_LOG(LogRepTraffic, Error, TEXT("Property isn't custom delta %s"), *ReplicatedProp->GetName());
					return false;
				}

				UScriptStruct * InnerStruct = StructProperty->Struct;

				if ( !( InnerStruct->StructFlags & STRUCT_NetDeltaSerializeNative ) )
				{
					// This property isn't custom delta
					UE_LOG(LogRepTraffic, Error, TEXT("Property isn't custom delta %s"), *ReplicatedProp->GetName());
					return false;
				}

				UScriptStruct::ICppStructOps * CppStructOps = InnerStruct->GetCppStructOps();

				check( CppStructOps );
				check( !InnerStruct->InheritedCppStructOps() );

				FNetDeltaSerializeInfo Parms;

				FNetSerializeCB NetSerializeCB( OwningChannel->Connection->Driver );

				Parms.DebugName			= StructProperty->GetName();
				Parms.Struct			= InnerStruct;
				Parms.Map				= PackageMap;
				Parms.Reader			= &Bunch;
				Parms.NetSerializeCB	= &NetSerializeCB;

				// Call the custom delta serialize function to handle it
				CppStructOps->NetDeltaSerialize( Parms, Data );

				if ( Bunch.IsError() )
				{
					UE_LOG(LogNet, Error, TEXT("ReceivedBunch: NetDeltaSerialize - Bunch.IsError() == true: %s"), *Object->GetFullName());
					return false;
				}

				if ( Parms.bOutHasMoreUnmapped )
				{
					UnmappedCustomProperties.Add( DataOffset, StructProperty );
					bOutHasUnmapped = true;
				}

				// Successfully received it.
				UE_LOG(LogRepTraffic, Log, TEXT(" %s - %s"), *Object->GetName(), *ReplicatedProp->GetName());

				// Notify the Object if this var is RepNotify
				QueuePropertyRepNotify( Object, ReplicatedProp, Element, MetaData );
			}	

//.........这里部分代码省略.........
				TArray<uint8>	MetaData;
				PTRINT Offset = 0;

				// Copy current value over to Recent for comparison
				if ( DestRecent )
				{
					Offset = ReplicatedProp->ContainerPtrToValuePtr<uint8>(DestRecent, Element) - DestRecent;
					check( Offset >= 0 && Offset < RepState->StaticBuffer.Num() ); //@todo if we move properties outside of the memory block, then this will not work anyway
					ReplicatedProp->CopySingleValue( DestRecent + Offset, Data );
				}

				// Receive custom delta property.
				UStructProperty * StructProperty = Cast< UStructProperty >( ReplicatedProp );

				if ( StructProperty == NULL )
				{
					// This property isn't custom delta
					UE_LOG( LogNetTraffic, Error, TEXT( "Property isn't custom delta %s" ), *ReplicatedProp->GetName() );
					return false;
				}

				UScriptStruct * InnerStruct = StructProperty->Struct;

				if ( !( InnerStruct->StructFlags & STRUCT_NetDeltaSerializeNative ) )
				{
					// This property isn't custom delta
					UE_LOG( LogNetTraffic, Error, TEXT( "Property isn't custom delta %s" ), *ReplicatedProp->GetName() );
					return false;
				}

				UScriptStruct::ICppStructOps * CppStructOps = InnerStruct->GetCppStructOps();

				check( CppStructOps );
				check( !InnerStruct->InheritedCppStructOps() );

				FNetDeltaSerializeInfo Parms;

				FNetSerializeCB NetSerializeCB( OwningChannel->Connection->Driver );

				Parms.DebugName			= StructProperty->GetName();
				Parms.Struct			= InnerStruct;
				Parms.Map				= PackageMap;
				Parms.InArchive			= &Bunch;
				Parms.NetSerializeCB	= &NetSerializeCB;

				// Call the custom delta serialize function to handle it
				CppStructOps->NetDeltaSerialize( Parms, Data );

				if ( Bunch.IsError() )
				{
					UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: NetDeltaSerialize - Bunch.IsError() == true: %s" ), *Object->GetFullName() );
					return false;
				}

				// See if it changed from our local value
				bool PropertyChanged = true;

				if ( DestRecent )
				{
					// POD types can do a memcmp with a call to Identical
					if ( ReplicatedProp->Identical( DestRecent + Offset, Data ) )
					{
						PropertyChanged = false;
					}
				}

void FObjectReplicator::UpdateUnmappedObjects( bool & bOutHasMoreUnmapped )
{
	UObject* Object = GetObject();

	if ( Object == NULL || Object->IsPendingKill() )
	{
		bOutHasMoreUnmapped = false;
		return;
	}

	if ( Connection->State == USOCK_Closed )
	{
		UE_LOG(LogNet, Warning, TEXT("FObjectReplicator::UpdateUnmappedObjects: Connection->State == USOCK_Closed"));
		return;
	}

	checkf( RepState->RepNotifies.Num() == 0, TEXT("Failed RepState RepNotifies check. Num=%d. Object=%s"), RepState->RepNotifies.Num(), *Object->GetFullName() );
	checkf( RepNotifies.Num() == 0, TEXT("Failed replicator RepNotifies check. Num=%d. Object=%s."), RepNotifies.Num(), *Object->GetFullName() );

	bool bSomeObjectsWereMapped = false;

	// Let the rep layout update any unmapped properties
	RepLayout->UpdateUnmappedObjects( RepState, Connection->PackageMap, Object, bSomeObjectsWereMapped, bOutHasMoreUnmapped );

	// Update unmapped objects for custom properties (currently just fast tarray)
	for ( auto It = UnmappedCustomProperties.CreateIterator(); It; ++It )
	{
		const int32			Offset			= It.Key();
		UStructProperty*	StructProperty	= It.Value();
		UScriptStruct*		InnerStruct		= StructProperty->Struct;

		check( InnerStruct->StructFlags & STRUCT_NetDeltaSerializeNative );

		UScriptStruct::ICppStructOps* CppStructOps = InnerStruct->GetCppStructOps();

		check( CppStructOps );
		check( !InnerStruct->InheritedCppStructOps() );

		FNetDeltaSerializeInfo Parms;

		FNetSerializeCB NetSerializeCB( OwningChannel->Connection->Driver );

		Parms.DebugName			= StructProperty->GetName();
		Parms.Struct			= InnerStruct;
		Parms.Map				= Connection->PackageMap;
		Parms.NetSerializeCB	= &NetSerializeCB;

		Parms.bUpdateUnmappedObjects	= true;
		Parms.bCalledPreNetReceive		= bSomeObjectsWereMapped;	// RepLayout used this to flag whether PreNetReceive was called
		Parms.Object					= Object;

		// Call the custom delta serialize function to handle it
		CppStructOps->NetDeltaSerialize( Parms, (uint8*)Object + Offset );

		// Merge in results
		bSomeObjectsWereMapped	|= Parms.bOutSomeObjectsWereMapped;
		bOutHasMoreUnmapped		|= Parms.bOutHasMoreUnmapped;

		if ( Parms.bOutSomeObjectsWereMapped )
		{
			// If we mapped a property, call the rep notify
			TArray<uint8> MetaData;
			QueuePropertyRepNotify( Object, StructProperty, 0, MetaData );
		}

		// If this property no longer has unmapped objects, we can stop checking it
		if ( !Parms.bOutHasMoreUnmapped )
		{
			It.RemoveCurrent();
		}
	}

	// Call any rep notifies that need to happen when object pointers change
	// Pass in false to override the check for queued bunches. Otherwise, if the owning channel has queued bunches,
	// the RepNotifies will remain in the list and the check for 0 RepNotifies above will fail next time.
	CallRepNotifies(false);

	if ( bSomeObjectsWereMapped )
	{
		// If we mapped some objects, make sure to call PostNetReceive (some game code will need to think this was actually replicated to work)
		PostNetReceive();
	}
}