StreamPeerTCP

Inherits: StreamPeer < RefCounted < Object

A stream peer that handles TCP connections.

Description

A stream peer that handles TCP connections. This object can be used to connect to TCP servers, or also is returned by a TCP server.

Note: When exporting to Android, make sure to enable the INTERNET permission in the Android export preset before exporting the project or using one-click deploy. Otherwise, network communication of any kind will be blocked by Android.

Methods

Error	bind ( int port, String host="*" )
Error	connect_to_host ( String host, int port )
void	disconnect_from_host ( )
String	get_connected_host ( ) const
int	get_connected_port ( ) const
int	get_local_port ( ) const
Status	get_status ( ) const
Error	poll ( )
void	set_no_delay ( bool enabled )

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Enumerations

enum Status:

Status STATUS_NONE = 0

The initial status of the StreamPeerTCP. This is also the status after disconnecting.

Status STATUS_CONNECTING = 1

A status representing a StreamPeerTCP that is connecting to a host.

Status STATUS_CONNECTED = 2

A status representing a StreamPeerTCP that is connected to a host.

Status STATUS_ERROR = 3

A status representing a StreamPeerTCP in error state.

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Method Descriptions

Error bind ( int port, String host="*" )

Opens the TCP socket, and binds it to the specified local address.

This method is generally not needed, and only used to force the subsequent call to connect_to_host to use the specified host and port as source address. This can be desired in some NAT punchthrough techniques, or when forcing the source network interface.

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Error connect_to_host ( String host, int port )

Connects to the specified host:port pair. A hostname will be resolved if valid. Returns @GlobalScope.OK on success.

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void disconnect_from_host ( )

Disconnects from host.

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String get_connected_host ( ) const

Returns the IP of this peer.

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int get_connected_port ( ) const

Returns the port of this peer.

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int get_local_port ( ) const

Returns the local port to which this peer is bound.

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Status get_status ( ) const

Returns the status of the connection, see Status.

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Error poll ( )

Poll the socket, updating its state. See get_status.

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void set_no_delay ( bool enabled )

If enabled is true, packets will be sent immediately. If enabled is false (the default), packet transfers will be delayed and combined using Nagle's algorithm.

Note: It's recommended to leave this disabled for applications that send large packets or need to transfer a lot of data, as enabling this can decrease the total available bandwidth.