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PR_Accept
=========
Accepts a connection on a specified socket.
Syntax
------
.. code::
#include <prio.h>
PRFileDesc* PR_Accept(
PRFileDesc *fd,
PRNetAddr *addr,
PRIntervalTime timeout);
Parameters
~~~~~~~~~~
The function has the following parameters:
``fd``
A pointer to a :ref:`PRFileDesc` object representing the rendezvous
socket on which the caller is willing to accept new connections.
``addr``
A pointer to a structure of type :ref:`PRNetAddr`. On output, this
structure contains the address of the connecting entity.
``timeout``
A value of type :ref:`PRIntervalTime` specifying the time limit for
completion of the accept operation.
Returns
~~~~~~~
The function returns one of the following values:
- Upon successful acceptance of a connection, a pointer to a new
:ref:`PRFileDesc` structure representing the newly accepted connection.
- If unsuccessful, ``NULL``. Further information can be obtained by
calling :ref:`PR_GetError`.
Description
-----------
The socket ``fd`` is a rendezvous socket that has been bound to an
address with :ref:`PR_Bind` and is listening for connections after a call
to :ref:`PR_Listen`. :ref:`PR_Accept` accepts the first connection from the
queue of pending connections and creates a new socket for the newly
accepted connection. The rendezvous socket can still be used to accept
more connections.
If the ``addr`` parameter is not ``NULL``, :ref:`PR_Accept` stores the
address of the connecting entity in the :ref:`PRNetAddr` object pointed to
by ``addr``.
:ref:`PR_Accept` blocks the calling thread until either a new connection is
successfully accepted or an error occurs. If the timeout parameter is
not ``PR_INTERVAL_NO_TIMEOUT`` and no pending connection can be accepted
before the time limit, :ref:`PR_Accept` returns ``NULL`` with the error
code ``PR_IO_TIMEOUT_ERROR``.
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