Class UDPSendCommand

File: src/inet/transportlayer/contract/udp/UDPControlInfo.msg

Control info for sending data via UDP. To send a packet, send it to the UDP module with kind=UDP_C_SEND and an UDPSendCommand attached.

UDP_C_SEND/UDPSendCommand models both the Unix send() and sendto() calls. If the socket is connected, destAddr/destPort may be left blank (send()), otherwise it must contain the destination for the packet (sendto()).

See also: UDPCommandCode

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram:

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends:

Name	Type	Description
UDPControlInfo	class	Base class for UDP control info classes. The most convenient way to handle UDP is the UDPSocket class, which hides control info from you.

Fields:

Name	Type	Description
destAddr	L3Address	destination IPv4 or IPv6 address
destPort	int	destination port
srcAddr	L3Address	source address
interfaceId	int	interface on which the packet must be sent (see InterfaceTable)
sockId	int	must uniquely identify the socket in the UDP module

Source code:

//
// Control info for sending data via UDP. To send a packet, send it to
// the ~UDP module with kind=UDP_C_SEND and an ~UDPSendCommand attached.
//
// UDP_C_SEND/~UDPSendCommand models both the Unix send() and sendto() calls.
// If the socket is connected, destAddr/destPort may be left blank (send()),
// otherwise it must contain the destination for the packet (sendto()).
//
// @see ~UDPCommandCode
//
class UDPSendCommand extends UDPControlInfo
{
    L3Address destAddr; // destination IPv4 or IPv6 address
    int destPort = -1;     // destination port
    L3Address srcAddr;       // source address
    int interfaceId = -1; // interface on which the packet must be sent (see ~InterfaceTable)
}