bool FGameplayEffectContextHandle::NetSerialize(FArchive& Ar, class UPackageMap* Map, bool& bOutSuccess)
{
UScriptStruct* ScriptStruct = Data.IsValid() ? Data->GetScriptStruct() : NULL;
Ar << ScriptStruct;
if (ScriptStruct)
{
if (Ar.IsLoading())
{
// For now, just always reset/reallocate the data when loading.
// Longer term if we want to generalize this and use it for property replication, we should support
// only reallocating when necessary
check(!Data.IsValid());
FGameplayEffectContext * NewData = (FGameplayEffectContext*)FMemory::Malloc(ScriptStruct->GetCppStructOps()->GetSize());
ScriptStruct->InitializeStruct(NewData);
Data = TSharedPtr<FGameplayEffectContext>(NewData);
}
void* ContainerPtr = Data.Get();
if (ScriptStruct->StructFlags & STRUCT_NetSerializeNative)
{
ScriptStruct->GetCppStructOps()->NetSerialize(Ar, Map, bOutSuccess, Data.Get());
}
else
{
// This won't work since UStructProperty::NetSerializeItem is deprecrated.
// 1) we have to manually crawl through the topmost struct's fields since we don't have a UStructProperty for it (just the UScriptProperty)
// 2) if there are any UStructProperties in the topmost struct's fields, we will assert in UStructProperty::NetSerializeItem.
ABILITY_LOG(Fatal, TEXT("FGameplayEffectContextHandle::NetSerialize called on data struct %s without a native NetSerialize"), *ScriptStruct->GetName());
for (TFieldIterator<UProperty> It(ScriptStruct); It; ++It)
{
if (It->PropertyFlags & CPF_RepSkip)
{
continue;
}
void * PropertyData = It->ContainerPtrToValuePtr<void*>(ContainerPtr);
It->NetSerializeItem(Ar, Map, PropertyData);
}
}
}
bOutSuccess = true;
return true;
}
bool FGameplayEffectContextHandle::NetSerialize(FArchive& Ar, class UPackageMap* Map, bool& bOutSuccess)
{
bool ValidData = Data.IsValid();
Ar.SerializeBits(&ValidData,1);
if (ValidData)
{
if (Ar.IsLoading())
{
// For now, just always reset/reallocate the data when loading.
// Longer term if we want to generalize this and use it for property replication, we should support
// only reallocating when necessary
if (Data.IsValid() == false)
{
Data = TSharedPtr<FGameplayEffectContext>(UAbilitySystemGlobals::Get().AllocGameplayEffectContext());
}
}
void* ContainerPtr = Data.Get();
UScriptStruct* ScriptStruct = Data->GetScriptStruct();
if (ScriptStruct->StructFlags & STRUCT_NetSerializeNative)
{
ScriptStruct->GetCppStructOps()->NetSerialize(Ar, Map, bOutSuccess, Data.Get());
}
else
{
// This won't work since UStructProperty::NetSerializeItem is deprecrated.
// 1) we have to manually crawl through the topmost struct's fields since we don't have a UStructProperty for it (just the UScriptProperty)
// 2) if there are any UStructProperties in the topmost struct's fields, we will assert in UStructProperty::NetSerializeItem.
ABILITY_LOG(Fatal, TEXT("FGameplayEffectContextHandle::NetSerialize called on data struct %s without a native NetSerialize"), *ScriptStruct->GetName());
}
}
bOutSuccess = true;
return true;
}
bool FGameplayAbilityTargetDataHandle::NetSerialize(FArchive& Ar, class UPackageMap* Map, bool& bOutSuccess)
{
uint8 DataNum;
if (Ar.IsSaving())
{
UE_CLOG(Data.Num() > MAX_uint8, LogAbilitySystem, Warning, TEXT("Too many TargetData sources (%d!) to net serialize. Clamping to %d"), Data.Num(), MAX_uint8);
DataNum = FMath::Min<int32>( Data.Num(), MAX_uint8 );
}
Ar << DataNum;
if (Ar.IsLoading())
{
Data.SetNumZeroed(DataNum);
}
for (int32 i = 0; i < DataNum && !Ar.IsError(); ++i)
{
UScriptStruct* ScriptStruct = Data[i].IsValid() ? Data[i]->GetScriptStruct() : NULL;
Ar << ScriptStruct;
if (ScriptStruct)
{
if (Ar.IsLoading())
{
// For now, just always reset/reallocate the data when loading.
// Longer term if we want to generalize this and use it for property replication, we should support
// only reallocating when necessary
check(!Data[i].IsValid());
FGameplayAbilityTargetData * NewData = (FGameplayAbilityTargetData*)FMemory::Malloc(ScriptStruct->GetCppStructOps()->GetSize());
ScriptStruct->InitializeStruct(NewData);
Data[i] = TSharedPtr<FGameplayAbilityTargetData>(NewData);
}
void* ContainerPtr = Data[i].Get();
if (ScriptStruct->StructFlags & STRUCT_NetSerializeNative)
{
ScriptStruct->GetCppStructOps()->NetSerialize(Ar, Map, bOutSuccess, Data[i].Get());
}
else
{
// This won't work since UStructProperty::NetSerializeItem is deprecrated.
// 1) we have to manually crawl through the topmost struct's fields since we don't have a UStructProperty for it (just the UScriptProperty)
// 2) if there are any UStructProperties in the topmost struct's fields, we will assert in UStructProperty::NetSerializeItem.
ABILITY_LOG(Fatal, TEXT("FGameplayAbilityTargetDataHandle::NetSerialize called on data struct %s without a native NetSerialize"), *ScriptStruct->GetName());
for (TFieldIterator<UProperty> It(ScriptStruct); It; ++It)
{
if (It->PropertyFlags & CPF_RepSkip)
{
continue;
}
void* PropertyData = It->ContainerPtrToValuePtr<void*>(ContainerPtr);
It->NetSerializeItem(Ar, Map, PropertyData);
}
}
}
}
//ABILITY_LOG(Warning, TEXT("FGameplayAbilityTargetDataHandle Serialized: %s"), ScriptStruct ? *ScriptStruct->GetName() : TEXT("NULL") );
bOutSuccess = true;
return true;
}
bool FObjectReplicator::ReceivedBunch( FInBunch &Bunch, const FReplicationFlags & RepFlags )
{
UObject * Object = GetObject();
UPackageMap * PackageMap = OwningChannel->Connection->PackageMap;
if ( Object == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Object == NULL" ) );
return false;
}
const bool bIsServer = ( OwningChannel->Connection->Driver->ServerConnection == NULL );
FClassNetCache * ClassCache = PackageMap->GetClassNetCache( ObjectClass );
if ( ClassCache == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: ClassCache == NULL: %s" ), *Object->GetFullName() );
return false;
}
bool bThisBunchReplicatedProperties = false;
// First RepIndex.
int32 RepIndex = Bunch.ReadInt( ClassCache->GetMaxIndex() + 1 );
if ( Bunch.IsError() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Error reading bunch 1: %s" ), *Object->GetFullName() );
return false;
}
if ( RepIndex == ClassCache->GetMaxIndex() )
{
// There are no actual replicated properties or functions in this bunch. That is ok - we may have gotten this
// actor/subobject because we want the client to spawn one (but we arent actually replicating properties on it)
return true;
}
if ( RepIndex > ClassCache->GetMaxIndex() )
{
// We shouldn't be receiving this bunch of this object has no properties or RPC functions to process
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: RepIndex too large: %s" ), *Object->GetFullName() );
return false;
}
FFieldNetCache * FieldCache = ClassCache->GetFromIndex( RepIndex );
if ( FieldCache == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: FieldCache == NULL: %s" ), *Object->GetFullName() );
return false;
}
while ( FieldCache )
{
// Receive properties from the net.
UProperty * ReplicatedProp = NULL;
int32 LastIndex = 0;
while ( FieldCache && ( ReplicatedProp = Cast< UProperty >( FieldCache->Field ) ) != NULL )
{
NET_CHECKSUM( Bunch );
// Server shouldn't receive properties.
if ( bIsServer )
{
UE_LOG( LogNet, Error, TEXT( "Server received unwanted property value %s in %s" ), *ReplicatedProp->GetName(), *Object->GetFullName() );
return false;
}
bThisBunchReplicatedProperties = true;
if ( !bHasReplicatedProperties )
{
bHasReplicatedProperties = true; // Persistent, not reset until PostNetReceive is called
PreNetReceive();
}
bool DebugProperty = false;
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
{
static IConsoleVariable* CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("net.Replication.DebugProperty"));
if (CVar && !CVar->GetString().IsEmpty() && ReplicatedProp->GetName().Contains(CVar->GetString()) )
{
UE_LOG(LogNet, Log, TEXT("Replicating Property[%d] %s on %s"), RepIndex, *ReplicatedProp->GetName(), *Object->GetName());
DebugProperty = true;
}
}
#endif
if ( !Retirement[ ReplicatedProp->RepIndex ].CustomDelta )
{
// We hijack a non custom delta property to signify we are using FRepLayout to read the entire property block
FPropertyRetirement & Retire = Retirement[ ReplicatedProp->RepIndex ];
bool bDiscardLayout = false;
if ( Bunch.PacketId >= Retire.InPacketId ) //!! problem with reliable pkts containing dynamic references, being retransmitted, and overriding newer versions. Want "OriginalPacketId" for retransmissions?
{
// Receive this new property.
Retire.InPacketId = Bunch.PacketId;
}
else
{
bDiscardLayout = true;
}
if ( !RepLayout->ReceiveProperties( ObjectClass, RepState, (void*)Object, Bunch, bDiscardLayout ) )
{
UE_LOG( LogNet, Error, TEXT( "ReceiveProperties FAILED %s in %s" ), *ReplicatedProp->GetName(), *Object->GetFullName() );
return false;
}
}
else
{
// Receive array index.
int32 Element = 0;
if ( ReplicatedProp->ArrayDim != 1 )
{
// Serialize index as delta from previous index to increase chance we'll only use 1 byte
uint32 idx;
Bunch.SerializeIntPacked( idx );
Element = static_cast< int32 >( idx ) + LastIndex;
LastIndex = Element;
if ( Element >= ReplicatedProp->ArrayDim )
{
UE_LOG( LogNet, Error, TEXT( "Element index too large %s in %s" ), *ReplicatedProp->GetName(), *Object->GetFullName() );
return false;
}
}
// Pointer to destination.
uint8 * DestObj = (uint8*)Object;
uint8 * DestRecent = RepState->StaticBuffer.Num() ? RepState->StaticBuffer.GetTypedData() : NULL;
// Check property ordering.
FPropertyRetirement & Retire = Retirement[ ReplicatedProp->RepIndex + Element ];
if ( Bunch.PacketId >= Retire.InPacketId ) //!! problem with reliable pkts containing dynamic references, being retransmitted, and overriding newer versions. Want "OriginalPacketId" for retransmissions?
{
// Receive this new property.
Retire.InPacketId = Bunch.PacketId;
}
else
{
// Skip this property, because it's out-of-date.
UE_LOG( LogNetTraffic, Log, TEXT( "Received out-of-date %s" ), *ReplicatedProp->GetName() );
DestObj = NULL;
DestRecent = NULL;
}
FMemMark Mark(FMemStack::Get());
uint8 * Data = DestObj ? ReplicatedProp->ContainerPtrToValuePtr<uint8>(DestObj, Element) : NewZeroed<uint8>(FMemStack::Get(),ReplicatedProp->ElementSize);
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;
}
}
Mark.Pop();
// Successfully received it.
UE_LOG( LogNetTraffic, Log, TEXT( " %s - %s - Change: %d" ), *Object->GetName(), *ReplicatedProp->GetName(), PropertyChanged );
// Notify the Object if this var is RepNotify
if ( PropertyChanged )
{
QueuePropertyRepNotify( Object, ReplicatedProp, Element, MetaData );
}
}
// Next.
RepIndex = Bunch.ReadInt( ClassCache->GetMaxIndex() + 1 );
if ( Bunch.IsError() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Error reading bunch 2: %s" ), *Object->GetFullName() );
return false;
}
if ( RepIndex > ClassCache->GetMaxIndex() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: RepIndex too large: %s" ), *Object->GetFullName() );
return false;
}
if ( RepIndex == ClassCache->GetMaxIndex() )
{
// We're done
FieldCache = NULL;
}
else
{
FieldCache = ClassCache->GetFromIndex( RepIndex );
if ( FieldCache == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: FieldCache == NULL: %s" ), *Object->GetFullName() );
return false;
}
}
}
// Handle function calls.
if ( FieldCache && Cast< UFunction >( FieldCache->Field ) )
{
FName Message = FieldCache->Field->GetFName();
UFunction * Function = Object->FindFunction( Message );
if ( Function == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Function == NULL: %s" ), *Object->GetFullName() );
return false;
}
if ( ( Function->FunctionFlags & FUNC_Net ) == 0 )
{
UE_LOG( LogNet, Error, TEXT( "Rejected non RPC function %s in %s" ), *Message.ToString(), *Object->GetFullName() );
return false;
}
if ( ( Function->FunctionFlags & ( bIsServer ? FUNC_NetServer : ( FUNC_NetClient | FUNC_NetMulticast ) ) ) == 0 )
{
UE_LOG( LogNet, Error, TEXT( "Rejected RPC function due to access rights %s in %s" ), *Message.ToString(), *Object->GetFullName() );
return false;
}
UE_LOG( LogNetTraffic, Log, TEXT( " Received RPC: %s" ), *Message.ToString() );
// Get the parameters.
FMemMark Mark(FMemStack::Get());
uint8* Parms = new(FMemStack::Get(),MEM_Zeroed,Function->ParmsSize)uint8;
// Use the replication layout to receive the rpc parameter values
TSharedPtr<FRepLayout> FuncRepLayout = OwningChannel->Connection->Driver->GetFunctionRepLayout( Function );
FuncRepLayout->ReceivePropertiesForRPC( Object, Function, OwningChannel, Bunch, Parms );
if ( Bunch.IsError() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: ReceivePropertiesForRPC - Bunch.IsError() == true: %s" ), *Object->GetFullName() );
return false;
}
// validate that the function is callable here
const bool bCanExecute = ( ( !bIsServer || RepFlags.bNetOwner ) ); // we are client or net owner
if ( bCanExecute )
{
// Call the function.
RPC_ResetLastFailedReason();
Object->ProcessEvent( Function, Parms );
if ( RPC_GetLastFailedReason() != NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: RPC_GetLastFailedReason: %s" ), RPC_GetLastFailedReason() );
return false;
}
}
else
{
UE_LOG( LogNet, Warning, TEXT( "Rejected unwanted function %s in %s" ), *Message.ToString(), *Object->GetFullName() );
if ( !OwningChannel->Connection->TrackLogsPerSecond() ) // This will disconnect the client if we get her too often
{
return false;
}
}
// Destroy the parameters.
//warning: highly dependent on UObject::ProcessEvent freeing of parms!
for ( UProperty * Destruct=Function->DestructorLink; Destruct; Destruct=Destruct->DestructorLinkNext )
{
if( Destruct->IsInContainer(Function->ParmsSize) )
{
Destruct->DestroyValue_InContainer(Parms);
}
}
Mark.Pop();
if ( Object == NULL || Object->IsPendingKill() )
{
// replicated function destroyed Object
return true; // FIXME: Should this return false to kick connection? Seems we'll cause a read misalignment here if we don't
}
// Next.
RepIndex = Bunch.ReadInt( ClassCache->GetMaxIndex() + 1 );
if ( Bunch.IsError() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Error reading bunch 2: %s" ), *Object->GetFullName() );
return false;
}
if ( RepIndex > ClassCache->GetMaxIndex() )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: RepIndex too large: %s" ), *Object->GetFullName() );
return false;
}
if ( RepIndex == ClassCache->GetMaxIndex() )
{
// We're done
FieldCache = NULL;
}
else
{
FieldCache = ClassCache->GetFromIndex( RepIndex );
if ( FieldCache == NULL )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: FieldCache == NULL: %s" ), *Object->GetFullName() );
return false;
}
}
}
else if ( FieldCache )
{
UE_LOG( LogNet, Error, TEXT( "ReceivedBunch: Invalid replicated field %i in %s" ), RepIndex, *Object->GetFullName() );
return false;
}
}
return true;
}
FGameplayAbilityTargetDataHandle UAbilitySystemBlueprintLibrary::FilterTargetData(FGameplayAbilityTargetDataHandle TargetDataHandle, FGameplayTargetDataFilterHandle FilterHandle)
{
FGameplayAbilityTargetDataHandle ReturnDataHandle;
for (int32 i = 0; TargetDataHandle.IsValid(i); ++i)
{
FGameplayAbilityTargetData* UnfilteredData = TargetDataHandle.Get(i);
check(UnfilteredData);
if (UnfilteredData->GetActors().Num() > 0)
{
TArray<TWeakObjectPtr<AActor>> FilteredActors = UnfilteredData->GetActors().FilterByPredicate(FilterHandle);
if (FilteredActors.Num() > 0)
{
//Copy the data first, since we don't understand the internals of it
UScriptStruct* ScriptStruct = UnfilteredData->GetScriptStruct();
FGameplayAbilityTargetData* NewData = (FGameplayAbilityTargetData*)FMemory::Malloc(ScriptStruct->GetCppStructOps()->GetSize());
ScriptStruct->InitializeStruct(NewData);
ScriptStruct->CopyScriptStruct(NewData, UnfilteredData);
ReturnDataHandle.Data.Add(TSharedPtr<FGameplayAbilityTargetData>(NewData));
if (FilteredActors.Num() < UnfilteredData->GetActors().Num())
{
//We have lost some, but not all, of our actors, so replace the array. This should only be possible with targeting types that permit actor-array setting.
if (!NewData->SetActors(FilteredActors))
{
//This is an error, though we could ignore it. We somehow filtered out part of a list, but the class doesn't support changing the list, so now it's all or nothing.
check(false);
}
}
}
}
}
return ReturnDataHandle;
}
bool FObjectReplicator::ReceivedBunch( FInBunch& Bunch, const FReplicationFlags& RepFlags, bool& bOutHasUnmapped )
{
UObject* Object = GetObject();
if ( Object == NULL )
{
UE_LOG(LogNet, Verbose, TEXT("ReceivedBunch: Object == NULL"));
return false;
}
UPackageMap * PackageMap = OwningChannel->Connection->PackageMap;
const bool bIsServer = ( OwningChannel->Connection->Driver->ServerConnection == NULL );
const FClassNetCache * ClassCache = OwningChannel->Connection->Driver->NetCache->GetClassNetCache( ObjectClass );
if ( ClassCache == NULL )
{
UE_LOG(LogNet, Error, TEXT("ReceivedBunch: ClassCache == NULL: %s"), *Object->GetFullName());
return false;
}
bool bThisBunchReplicatedProperties = false;
// Read first field
const FFieldNetCache * FieldCache = ReadField( ClassCache, Bunch );
if ( Bunch.IsError() )
{
UE_LOG(LogNet, Error, TEXT("ReceivedBunch: Error reading field 1: %s"), *Object->GetFullName());
return false;
}
if ( FieldCache == NULL )
{
// There are no actual replicated properties or functions in this bunch. That is ok - we may have gotten this
// actor/sub-object because we want the client to spawn one (but we aren't actually replicating properties on it)
return true;
}
while ( FieldCache )
{
// Receive properties from the net.
UProperty* ReplicatedProp = NULL;
while ( FieldCache && ( ReplicatedProp = Cast< UProperty >( FieldCache->Field ) ) != NULL )
{
NET_CHECKSUM( Bunch );
// Server shouldn't receive properties.
if ( bIsServer )
{
UE_LOG(LogNet, Error, TEXT("Server received unwanted property value %s in %s"), *ReplicatedProp->GetName(), *Object->GetFullName());
return false;
}
bThisBunchReplicatedProperties = true;
if ( !bHasReplicatedProperties )
{
bHasReplicatedProperties = true; // Persistent, not reset until PostNetReceive is called
PreNetReceive();
}
bool DebugProperty = false;
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
{
static IConsoleVariable* CVar = IConsoleManager::Get().FindConsoleVariable(TEXT("net.Replication.DebugProperty"));
if (CVar && !CVar->GetString().IsEmpty() && ReplicatedProp->GetName().Contains(CVar->GetString()) )
{
UE_LOG(LogRep, Log, TEXT("Replicating Property[%d] %s on %s"), ReplicatedProp->RepIndex, *ReplicatedProp->GetName(), *Object->GetName());
DebugProperty = true;
}
}
#endif
if ( !Retirement[ ReplicatedProp->RepIndex ].CustomDelta )
{
bool bLocalHasUnmapped = false;
// We hijack a non custom delta property to signify we are using FRepLayout to read the entire property block
if ( !RepLayout->ReceiveProperties( ObjectClass, RepState, (void*)Object, Bunch, bLocalHasUnmapped ) )
{
UE_LOG(LogRep, Error, TEXT("ReceiveProperties FAILED %s in %s"), *ReplicatedProp->GetName(), *Object->GetFullName());
return false;
}
if ( bLocalHasUnmapped )
{
bOutHasUnmapped = true;
}
}
else
{
// Receive array index.
uint32 Element = 0;
if ( ReplicatedProp->ArrayDim != 1 )
{
check( ReplicatedProp->ArrayDim >= 2 );
Bunch.SerializeIntPacked( Element );
if ( Element >= (uint32)ReplicatedProp->ArrayDim )
{
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 );
}
// Read next field
FieldCache = ReadField( ClassCache, Bunch );
if ( Bunch.IsError() )
{
UE_LOG(LogNet, Error, TEXT("ReceivedBunch: Error reading field 2: %s"), *Object->GetFullName());
return false;
}
}
// Handle function calls.
if ( FieldCache && Cast< UFunction >( FieldCache->Field ) )
{
FName Message = FieldCache->Field->GetFName();
UFunction * Function = Object->FindFunction( Message );
if ( Function == NULL )
{
UE_LOG(LogNet, Error, TEXT("ReceivedBunch: Function == NULL: %s"), *Object->GetFullName());
return false;
}
if ( ( Function->FunctionFlags & FUNC_Net ) == 0 )
{
UE_LOG(LogRep, Error, TEXT("Rejected non RPC function %s in %s"), *Message.ToString(), *Object->GetFullName());
return false;
}
if ( ( Function->FunctionFlags & ( bIsServer ? FUNC_NetServer : ( FUNC_NetClient | FUNC_NetMulticast ) ) ) == 0 )
{
UE_LOG(LogRep, Error, TEXT("Rejected RPC function due to access rights %s in %s"), *Message.ToString(), *Object->GetFullName());
return false;
}
UE_LOG(LogRepTraffic, Log, TEXT(" Received RPC: %s"), *Message.ToString());
// Get the parameters.
FMemMark Mark(FMemStack::Get());
uint8* Parms = new(FMemStack::Get(),MEM_Zeroed,Function->ParmsSize)uint8;
// Use the replication layout to receive the rpc parameter values
TSharedPtr<FRepLayout> FuncRepLayout = OwningChannel->Connection->Driver->GetFunctionRepLayout( Function );
FuncRepLayout->ReceivePropertiesForRPC( Object, Function, OwningChannel, Bunch, Parms );
if ( Bunch.IsError() )
{
UE_LOG(LogRep, Error, TEXT("ReceivedBunch: ReceivePropertiesForRPC - Bunch.IsError() == true: Function: %s, Object: %s"), *Message.ToString(), *Object->GetFullName());
return false;
}
// validate that the function is callable here
const bool bCanExecute = ( !bIsServer || RepFlags.bNetOwner ); // we are client or net owner
if ( bCanExecute )
{
// Call the function.
RPC_ResetLastFailedReason();
Object->ProcessEvent( Function, Parms );
if ( RPC_GetLastFailedReason() != NULL )
{
UE_LOG(LogRep, Error, TEXT("ReceivedBunch: RPC_GetLastFailedReason: %s"), RPC_GetLastFailedReason());
return false;
}
}
else
{
UE_LOG(LogRep, Verbose, TEXT("Rejected unwanted function %s in %s"), *Message.ToString(), *Object->GetFullName());
if ( !OwningChannel->Connection->TrackLogsPerSecond() ) // This will disconnect the client if we get here too often
{
UE_LOG(LogRep, Error, TEXT("Rejected too many unwanted functions %s in %s"), *Message.ToString(), *Object->GetFullName());
return false;
}
}
// Destroy the parameters.
//warning: highly dependent on UObject::ProcessEvent freeing of parms!
for ( UProperty * Destruct=Function->DestructorLink; Destruct; Destruct=Destruct->DestructorLinkNext )
{
if( Destruct->IsInContainer(Function->ParmsSize) )
{
Destruct->DestroyValue_InContainer(Parms);
}
}
Mark.Pop();
if ( Object == NULL || Object->IsPendingKill() )
{
// replicated function destroyed Object
return true; // FIXME: Should this return false to kick connection? Seems we'll cause a read misalignment here if we don't
}
// Next.
FieldCache = ReadField( ClassCache, Bunch );
if ( Bunch.IsError() )
{
UE_LOG(LogNet, Error, TEXT("ReceivedBunch: Error reading field 3: %s"), *Object->GetFullName());
return false;
}
}
else if ( FieldCache )
{
UE_LOG(LogRep, Error, TEXT("ReceivedBunch: Invalid replicated field %i in %s"), FieldCache->FieldNetIndex, *Object->GetFullName());
return false;
}
}
return true;
}
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();
}
}