PacketPeerUDP

Inherits: PacketPeer < Reference < Object

UDP packet peer.

Description

UDP packet peer. Can be used to send raw UDP packets as well as Variants.

Methods

voidclose ( )
Stringget_packet_ip ( ) const
intget_packet_port ( ) const
boolis_listening ( ) const
Errorjoin_multicast_group ( String multicast_address, String interface_name )
Errorleave_multicast_group ( String multicast_address, String interface_name )
Errorlisten ( int port, String bind_address=”*”, int recv_buf_size=65536 )
voidset_broadcast_enabled ( bool enabled )
Errorset_dest_address ( String host, int port )
Errorwait ( )

Method Descriptions

  • void close ( )

Closes the UDP socket the PacketPeerUDP is currently listening on.


  • String get_packet_ip ( ) const

Returns the IP of the remote peer that sent the last packet(that was received with PacketPeer.get_packet or PacketPeer.get_var).


  • int get_packet_port ( ) const

Returns the port of the remote peer that sent the last packet(that was received with PacketPeer.get_packet or PacketPeer.get_var).


  • bool is_listening ( ) const

Returns whether this PacketPeerUDP is listening.


Joins the multicast group specified by multicast_address using the interface identified by interface_name.

You can join the same multicast group with multiple interfaces. Use IP.get_local_interfaces to know which are available.

Note: Some Android devices might require the CHANGE_WIFI_MULTICAST_STATE permission for multicast to work.


Removes the interface identified by interface_name from the multicast group specified by multicast_address.


Makes this PacketPeerUDP listen on the port binding to bind_address with a buffer size recv_buf_size.

If bind_address is set to "*" (default), the peer will listen on all available addresses (both IPv4 and IPv6).

If bind_address is set to "0.0.0.0" (for IPv4) or "::" (for IPv6), the peer will listen on all available addresses matching that IP type.

If bind_address is set to any valid address (e.g. "192.168.1.101", "::1", etc), the peer will only listen on the interface with that addresses (or fail if no interface with the given address exists).


  • void set_broadcast_enabled ( bool enabled )

Enable or disable sending of broadcast packets (e.g. set_dest_address("255.255.255.255", 4343). This option is disabled by default.

Note: Some Android devices might require the CHANGE_WIFI_MULTICAST_STATE permission and this option to be enabled to receive broadcast packets too.


Sets the destination address and port for sending packets and variables. A hostname will be resolved using DNS if needed.

Note: set_broadcast_enabled must be enabled before sending packets to a broadcast address (e.g. 255.255.255.255).


Waits for a packet to arrive on the listening port. See listen.

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