UProxyNetDriver

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A network proxy that intercepts and forwards UE game network connections to backend game servers.

The proxy externally behaves the same as a normal game server when game clients connect and as a normal client when connecting to game servers. This means that there is no need for the clients and game servers that the proxy is connected to have any special proxy-aware configuration.

Internally, the proxy is made up of an instance of UProxyNetDriver that listens for incoming connections, known as proxy connections, and an instance of UProxyBackendNetDriver for each connection to a backend game server. State from the backend servers is replicated into a single, shared UWorld and the listening UProxyNetDriver replicates that state out to proxy connections.

All actors replicated to the proxy from remote game servers will have the same role as a client (ROLE_SimulatedProxy or ROLE_AutonomousProxy) and will be replicated as-is to the proxy client.

When a proxy connection (UNetConnection) is opened in UProxyNetDriver it opens a game server connection (UNetConnection) to each registered backend server.

For each proxy connection one of the game servers are considered the primary game server. This is the game server that spawns the proxy client's pawn, player controller, receive RPCs from the proxy connection, and send RPCs to the proxy connection. The other game servers are considered non-primary game servers and only replicate state relevant to that connection to the proxy.

When connecting to non-primary game servers the game server will spawn a ANoPawnPlayerController player controller, and not spawn a pawn. These connections will replicate state from the game server but not maintain a player presence.

Syntax

UCLASS ()  
class UProxyNetDriver : public UIpNetDriver  
Copy full snippet

UCLASS () class UProxyNetDriver : public UIpNetDriver

Inheritance Hierarchy

• FExec → UNetDriver → UIpNetDriver → UProxyNetDriver
• UObjectBase → UObjectBaseUtility → UObject → UNetDriver → UIpNetDriver → UProxyNetDriver

Variables

Protected

Functions

Public

Overridden from UNetDriver