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| -rw-r--r-- | docs/nspr/reference/pr_openudpsocket.rst | 49 |
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diff --git a/docs/nspr/reference/pr_openudpsocket.rst b/docs/nspr/reference/pr_openudpsocket.rst new file mode 100644 index 0000000000..f25373d7d8 --- /dev/null +++ b/docs/nspr/reference/pr_openudpsocket.rst @@ -0,0 +1,49 @@ +PR_OpenUDPSocket +================ + +Creates a new UDP socket of the specified address family. + + +Syntax +------ + +.. code:: + + #include <prio.h> + + PRFileDesc* PR_OpenUDPSocket(PRIntn af); + + +Parameters +~~~~~~~~~~ + +The function has the following parameters: + +``af`` + The address family of the new UDP socket. Can be ``PR_AF_INET`` + (IPv4), ``PR_AF_INET6`` (IPv6), or ``PR_AF_LOCAL`` (Unix domain, + supported on POSIX systems only). + + +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_OpenUDPSocket` creates a new UDP socket of the address family +``af``. 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`. |