46 lines
1.1 KiB
ReStructuredText
46 lines
1.1 KiB
ReStructuredText
PR_NewUDPSocket
|
|
===============
|
|
|
|
Creates a new UDP socket.
|
|
|
|
|
|
Syntax
|
|
------
|
|
|
|
.. code::
|
|
|
|
#include <prio.h>
|
|
|
|
PRFileDesc* PR_NewUDPSocket(void);
|
|
|
|
|
|
Returns
|
|
~~~~~~~
|
|
|
|
The function returns one of the following values:
|
|
|
|
- Upon successful completion, a pointer to the :ref:`PRFileDesc` object
|
|
created for the newly opened UDP socket.
|
|
- If the creation of a new UDP socket failed, ``NULL``.
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
UDP (User Datagram Protocol) is a connectionless, unreliable datagram
|
|
protocol of the TCP/IP protocol suite. UDP datagrams may be lost or
|
|
delivered in duplicates or out of sequence.
|
|
|
|
:ref:`PR_NewUDPSocket` creates a new UDP socket. The socket may be bound to
|
|
a well-known port number with :ref:`PR_Bind`. Datagrams can be sent with
|
|
:ref:`PR_SendTo` and received with :ref:`PR_RecvFrom`. When the socket is no
|
|
longer needed, it should be closed with a call to :ref:`PR_Close`.
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
:ref:`PR_NewUDPSocket` is deprecated because it is hardcoded to create an
|
|
IPv4 UDP socket. New code should use :ref:`PR_OpenUDPSocket` instead, which
|
|
allows the address family (IPv4 or IPv6) of the new UDP socket to be
|
|
specified.
|