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+PR_Listen
+=========
+
+Listens for connections on a specified socket.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prio.h>
+
+   PRStatus PR_Listen(
+     PRFileDesc *fd,
+     PRIntn backlog);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameters:
+
+``fd``
+   A pointer to a :ref:`PRFileDesc` object representing a socket that will
+   be used to listen for new connections.
+``backlog``
+   The maximum length of the queue of pending connections.
+
+
+Returns
+~~~~~~~
+
+The function returns one of the following values:
+
+-  Upon successful completion of listen request, ``PR_SUCCESS``.
+-  If unsuccessful, ``PR_FAILURE``. Further information can be obtained
+   by calling :ref:`PR_GetError`.
+
+
+Description
+-----------
+
+:ref:`PR_Listen` turns the specified socket into a rendezvous socket. It
+creates a queue for pending connections and starts to listen for
+connection requests on the socket. The maximum size of the queue for
+pending connections is specified by the ``backlog`` parameter. Pending
+connections may be accepted by calling :ref:`PR_Accept`.