1. Epic GamesDeveloper
  3. Net

Net

Unreal Engine C++ API Reference > Runtime > Engine

Filters

Classes

  Type Name Description
Public class UClass NotPlaceable Transient ABandwidthTestActor This ABandwidthTestActor class is used to generate an easily controllable amount of bandwidth.  
Public struct CGetFastArrayCreateReplicationFragmentFuncable    
Public struct FAckSample    
Public struct FActiveRPCTrackingInfo Stores a reference to active/valid FRPCTrackingInfo entries, for occasional cleanup.  
Public struct FActorDormantReplicators Container that stores all the replicators owned by a given dormant Actor.  
Public struct UStruct FBandwidthTestGenerator    
Public struct UStruct FBandwidthTestItem    
Public class FChangelistIterator Simple helper class to track state while iterating over changelists.  
Public struct FControlChannelOutBunch Out bunch for the control channel (special restrictions)  
Public class FDefaultFaultHandler Default Fault Handler  
Public struct FDelinquencyAnalytics Convenience type that can be used to tracks information about things that can result in prolonged periods of apparent network inactivity, despite actually receiving traffic.  
Public struct FDelinquencyKeyFuncs    
Public struct FDelinquencyNameTimePair Tracks an FName ID to a time value.  
Public struct FDoRepLifetimeParams Struct containing various parameters that can be passed to DOREPLIFETIME_WITH_PARAMS to control how variables are replicated.  
Public struct FDormantObjectReplicator Container holding the FObjectReplicator of a dormant replicated object  
Public struct FDormantReplicatorHolder Container that stores the object replicators of dormant actors and their subobjects.  
Public class FEmptyOnlineDelegate Copyright Epic Games, Inc. All Rights Reserved.  
Public class FHandleToCmdIndex Converts a relative handle to the appropriate index into the Cmds array  
Public class FInBunch A bunch of data received from a channel.  
Public struct FNetAsyncLoadDelinquencyAnalytics Tracks data related specific to a NetDriver that can can result in prolonged periods of apparent network inactivity, despite actually receiving traffic.  
Public class FNetConnectionFaultRecovery NetConnection Fault Recovery  
Public class FNetConnectionIdHandler    
Public struct FNetConnectionPacketAnalytics Struct wrapper Per Net Connection analytics for things like packet loss and jitter.  
Public struct FNetConnectionSaturationAnalytics Struct wrapping Per Net Connection saturation analytics.  
Public class FNetControlMessage Network control channel message types  
Public class FNetControlMessageInfo Contains info about a message type retrievable without static binding (e.g. whether it's a valid type, friendly name string, etc)  
Public class FNetPacketNotify FNetPacketNotify - Drives delivery of sequence numbers, acknowledgments and notifications of delivery sequence numbers  
Public class FNetPing Central class for handling all Player/NetConnection ping collection and calculation.  
Public struct FNetQueuedActorDelinquencyAnalytics Tracks data related specific to a NetConnection that can can result in prolonged periods of apparent network inactivity, despite actually receiving traffic.  
Public class FNetworkCongestionControl One implementation of network traffic control based on the unacked bytes in flight and the estimated uplink bandwidth and propagation round-trip time.  
Public struct FNetworkMetric    
Public struct UStruct FNetworkMetricConfig    
Public struct FNetworkMetricSnapshot    
Public struct FNetworkReplayDelegates    
Public class FNetworkTrafficAnalyzer A Network traffic analyzer that keeps track of useful information including the RTT and uplink bandwidth of the latest received packet to help the congestion control module work.  
Public class FObjectReplicator Represents an object that is currently being replicated or handling RPCs.  
Public class FOutBunch A bunch of data to send.  
Public struct FPingValues Struct for returning ping values, in seconds.  
Public class FReceivingRepState Replication State needed to track received properties.  
Public class FRepChangedHistory Represents a single changelist, tracking changed properties.  
Public class FRepChangelistState Stores changelist history (that are used to know what properties have changed) for objects.  
Public struct FRepClassDescriptor    
Public class FRepHandleIterator Iterates over a changelist, taking each handle, and mapping to rep layout index, array index, etc.  
Public class FRepLayout This class holds all replicated properties for a given type (either a UClass, UStruct, or UFunction).  
Public struct FReplayPlaylistParams Set of parameters used with UGameInstance::PlayReplayPlatlist to control how the playlist is started.  
Public struct FReplayPlaylistTracker Used with UGameInstance::PlayReplayPlaylist to manage playing a set of Replays in succession.  
Public struct FReplayPlaylistUpdatedOptions Set of options that can be updated before starting each replay in a playlist.  
Public struct FReplicatedActorProperty Struct containing property and offset for replicated actor properties  
Public class FReplicationChangelistMgr FReplicationChangelistMgr manages a list of change lists for a particular replicated object that have occurred since the object started replicating Once the history is completely full, the very first changelist will then be merged with the next one (freeing a slot) This way we always have the entire history for join in progress players This information is then used by all connections, to share the compare work needed to determine what to send each connection Connections will send any changelist that is new since the last time the connection checked  
Public struct FRepPropertyDescriptor    
Public struct FRepSerializationSharedInfo Holds a set of shared net serialized properties  
Public struct FRepSerializedPropertyInfo Holds the unique identifier and offsets/lengths of a net serialized property used for Shared Serialization  
Public struct FRepSharedPropertyKey    
Public class FRepState Replication State that is unique Per Object Per Net Connection.  
Public struct FRepStateStaticBuffer Holds deep copies of replicated property data for objects.  
Public struct FRPCDoSCounters Struct containing RPC counters covering any time period (e.g. frame/second/arbitrary-period)  
Public class FRPCDoSDetection RPC DoS detection  
Public struct UStruct FRPCDoSState Stores the RPC DoS detection state (either settings from the config file, or the active DDoS detection state)  
Public struct UStruct FRPCDoSStateConfig Configuration for RPC DoS Detection states  
Public struct FRPCTrackingInfo Live tracking information for individual RPC's, for timing of RPC's, analytics, and handling blocking  
Public class FScopedActorRoleSwap    
Public struct FScopeMarker    
Public class FSendingRepState Replication State that is only needed when sending properties.  
Public struct FSeqSample    
Public class FVoicePacket Defines the data involved in a voice packet  
Public struct UStruct BlueprintType FVoiceSettings    
Public struct TPacketLossData Calculates the current packet loss along with a rolling average of the past X updates Constructed with the number of samples you want to average over time.  
Public struct TRepDataBufferBase TRepDataBuffer and TConstRepDataBuffer act as wrapper around internal data buffers that FRepLayout may use.  
Public class UClass Config perobjectconfig UNetFaultConfig Configuration class for FNetFaultState state escalation configuration  
Public class UClass MinimalAPI UNetPushModelHelpers    
Public class UClass Abstract Config UNetworkMetricsBaseListener An abstract class for metrics listeners that are registered with FNetworkMetricsDatabase.  
Public class UClass Config UNetworkMetricsConfig    
Public class UClass UNetworkMetricsCSV A metrics listener that reports an array of metrics to CSV.  
Public class UClass UNetworkMetricsDatabase    
Public class UClass UNetworkMetricsPerfCounters A metrics listener that reports an array of metrics to PerfCounters.  
Public class UClass UNetworkMetricsStats A metrics listener that reports a metric to a single Stat.  
Public class UClass MinimalAPI UOnlineBlueprintCallProxyBase    
Public class UClass MinimalAPI Config UOnlineEngineInterface Interface class between engine and OnlineSubsystem to remove dependencies between the two The real work is implemented in UOnlineEngineInterfaceImpl in OnlineSubsystemUtils The expectation is that this basic group of functions will not expand/change and that OnlineSubsystem can remain independent of the engine  
Public class UClass MinimalAPI UVOIPStatics    
Public class UClass MinimalAPI Blueprintable, BlueprintType ClassGroup, Meta UVOIPTalker    

Constants

Name Description
MicSilenceDetectionConfig::IsAnalog  
MicSilenceDetectionConfig::LevelDetectionMode  
MicSilenceDetectionConfig::PacketBufferSlack  

Typedefs

Name Description
FConstRepObjectDataBuffer  
FConstRepShadowDataBuffer  
FDemoFrameDataMap  
FGetOverridableVersionDataForDemoHeaderReadDelegate Games can use these to override Version Data of Replay Headers.
FGetOverridableVersionDataForDemoHeaderWriteDelegate  
FGetRPCDoSAddress Callback usually passed in by the NetConnection, for getting the address of the owning connection
FGetRPCDoSPlayerUID Callback usually passed in by the NetConnection, for getting the unique id of the owning player/connection
FOnlineAutoLoginComplete Delegate fired when an AutoLogin request is complete
FOnlineExternalUIChanged Delegate fired when an external UI is opened or closed
FOnlineSessionEndComplete Delegate fired when an online EndSession call has completed
FOnlineSessionStartComplete Delegate fired when an online StartSession call has completed
FOnlineShowWebUrlClosed Delegate executed when the web url UI has been closed
FOnPauseChannelsChangedDelegate  
FOnPIELoginComplete Delegate fired when a PIE login has completed
FOnProcessGameSpecificDemoHeader  
FOnProcessGameSpecificFrameData  
FOnReplayIDChangedDelegate  
FOnReplayPlaybackCompleteDelegate  
FOnReplayRecordingCompleteDelegate  
FOnReplayRecordingStartAttemptDelegate  
FOnReplayScrubCompleteDelegate  
FOnReplayStartedDelegate  
FOnWriteGameSpecificDemoHeader  
FOnWriteGameSpecificFrameData  
FPreActorDestroyReplayScrub  
FPreReplayScrub Fired at the start of replay checkpoint loading
FPreStartNextPlaylistReplay Delegate that is called prior to starting each replay in a playlist, giving game code a chance to update any necessary options or perform other work.
FReplayScrubTeardown Fired mid-checkpoint load after the previous game state is torn down, and prior to any GC
FRepObjectDataBuffer  
FRepShadowDataBuffer  
FRPCDoSKickPlayer Callback usually passed in by the NetConection, for kicking the player after exceeding RPC DoS kick thresholds
FVoicePacketList Make the TArray of voice packets a bit more readable
TConstRepDataBuffer  
TRepDataBuffer  

Enums

  Type Name Description
Public enum EAudioEncodeHint Encoding hints for compression  
Public enum ECreateRepLayoutFlags    
Public enum ECreateReplicationChangelistMgrFlags    
Public enum ECreateRepStateFlags Flags used to customize how RepStates are created.  
Public enum EDiffPropertiesFlags    
Public enum ENetPingControlMessage NMT_NetPing control channel sub-messages  
Public enum UEnum ENetworkMetricEnableMode Copyright Epic Games, Inc. All Rights Reserved.  
Public enum UEnum EPingAverageType The type of averaging to perform on ping values  
Public enum UEnum EPingType Flags specifying different types of ping.  
Public enum EPostSequentialRPCType The type of a call to PostSequentialRPC  
Public enum EReceivePropertiesFlags    
Public enum ERepDataBufferType    
Public enum ERepLayoutCmdFlags Various flags that describe how a Property should be handled.  
Public enum ERepLayoutCmdType Various types of Properties supported for Replication.  
Public enum ERepLayoutFlags    
Public enum ERepLayoutResult    
Public enum UEnum EReplayResult    
Public enum ERepParentFlags Various flags that describe how a Top Level Property should be handled.  
Public enum ERPCBlockState The status of blocking for an individual RPC  
Public enum ERPCDoSEscalateReason The reason for an RPC DoS severity update  
Public enum ERPCDoSSeverityUpdate RPC DoS escalation severity update types  
Public enum ERPCNotifyResult Result of NotifyReceivedRPC, for specifying whether the RPC should execute or should be blocked  
Public enum ESerializePropertyType    

Functions

  Type Name Description
Public function int32

BestSignedDifference ( int32 Value,
int32 Reference,
int32 Max
)

 Return the value of Max/2 <= Value-Reference+some_integer*Max < Max/2.
Public function    
Public function void  
Public function void

DisableAllReplicatedPropertiesOfClass ( const UClass* ThisClass,
const UClass* ClassToDisable,
EFieldIteratorFlags::SuperClassFlags SuperClassBehavior,
TArray< FLifetimeProperty >& OutLifetimeProps
)

  
Public function void  
Public function void

DisableReplicatedLifetimeProperty ( const UClass* ThisClass,
const UClass* PropertyClass,
FName PropertyName,
TArray< FLifetimeProperty >& OutLifetimeProps
)

  
Public function    
Public function    
Public function   Represents a single property, which could be either a Top Level Property, a Nested Struct Property, or an element in a Dynamic Array.
Public function   A Top Level Property of a UClass, UStruct, or UFunction (arguments to a UFunction).
Public function    
Public function    
Public function    
Public function    
Public function    
Public function TEnableIfTModels_V< CGetFastArrayCreateReplicationFragmentFuncable, T >, constFDoRepLifetimePa...

FixupParams ( const FDoRepLifetimeParams& Params
)

  
Public function FProperty *

GetReplicatedProperty ( const UClass* CallingClass,
const UClass* PropClass,
const FName& PropName
)

 Wrapper to find replicated properties that also makes sure they're valid
Public function bool

IsCustomDeltaProperty ( const FStructProperty* StructProperty
)

  
Public function bool

IsCustomDeltaProperty ( const FProperty* Property
)

  
Public function const TCHAR *  
Public function FString With this formatting, an array of these (or even just a single entry) will have the same form as a map "key:value,key:value,..."
Public function const TCHAR *  
Public function const TCHAR *  
Public function  

LLM_DECLARE_TAG_API ( NetObjReplicator,
ENGINE_API
)

  
Public function int32

MakeRelative ( int32 Value,
int32 Reference,
int32 Max
)

  
Public function uint32

PerfCountersGet ( const FString& Name,
uint32 DefaultVal
)

  
Public function int32

PerfCountersGet ( const FString& Name,
int32 DefaultVal
)

  
Public function double

PerfCountersGet ( const FString& Name,
double DefaultVal
)

  
Public function float

PerfCountersGet ( const FString& Name,
float DefaultVal
)

  
Public function int32

PerfCountersIncrement ( const FString& Name,
int32 Add,
int32 DefaultValue,
uint32 Flags
)

  
Public function void

PerfCountersSet ( const FString& Name,
float Val,
uint32 Flags
)

 Stub implementations to be used when PerfCounters are unavailable
Public function void

PerfCountersSet ( const FString& Name,
int32 Val,
uint32 Flags
)

  
Public function void

PerfCountersSet ( const FString& Name,
const FString& Val,
uint32 Flags
)

  
Public function void

RegisterReplicatedLifetimeProperty ( const FProperty* ReplicatedProperty,
TArray< FLifetimeProperty >& OutLifetimeProps,
const FDoRepLifetimeParams& Params
)

  
Public function void  
Public function void

ResetReplicatedLifetimeProperty ( const UClass* ThisClass,
const UClass* PropertyClass,
FName PropertyName,
ELifetimeCondition LifetimeCondition,
TArray< FLifetimeProperty >& OutLifetimeProps
)

  
Public function void

ResetReplicatedLifetimeProperty ( const UClass* ThisClass,
const UClass* PropertyClass,
FName PropertyName,
const FDoRepLifetimeParams& Params,
TArray< FLifetimeProperty >& OutLifetimeProps
)

  
Public function void

ResetReplicatedLifetimeProperty ( const NetworkingPrivate::FRepPropertyDescriptor& PropertyDescriptor,
ELifetimeCondition LifetimeCondition,
TArray< FLifetimeProperty >& OutLifetimeProps
)

  
Public function void  
Public function int32 Converts an EPingType flag to an array index at compile time.
Public function Static int32 Converts an EPingType flag to an array index at runtime.
Public function Static TRepDataBufferBase< ERepDataBufferType::ObjectBuffer, ConstOrNotType >

UE_RepLayout_Private::operator+ ( TRepDataBufferBase< ERepDataBufferType::ObjectBuffer, ConstOrNotType > InBuffer,
const TLayoutCmdType& Cmd
)

  
Public function Static TRepDataBufferBase< ERepDataBufferType::ShadowBuffer, ConstOrNotType >

UE_RepLayout_Private::operator+ ( const TRepDataBufferBase< ERepDataBufferType::ShadowBuffer, ConstOrNotType > InBuffer,
const TLayoutCmdType& Cmd
)

  
Public function bool  

Variables

  Type Name Description
Public variable PRAGMA_ENABLE_DEPRECATION_WARNINGS typedef TMulticastDelegate_TwoParams< void, UWorld *, const U... FOnReplayPlaybackFailureDelegate  
Public variable PRAGMA_DISABLE_DEPRECATION_WARNINGS typedef TMulticastDelegate_TwoParams< void, UWorld *, EDemoP... FOnReplayStartFailureDelegate  
Public variable const int32 MAX_BUNCH_SIZE  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page