Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/docs/nspr/reference/pr_connect.rst b/docs/nspr/reference/pr_connect.rst
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+PR_Connect
+==========
+
+Initiates a connection on a specified socket.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prio.h>
+
+   PRStatus PR_Connect(
+     PRFileDesc *fd,
+     const PRNetAddr *addr,
+     PRIntervalTime timeout);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameters:
+
+``fd``
+   A pointer to a :ref:`PRFileDesc` object representing a socket.
+``addr``
+   A pointer to the address of the peer to which the socket is to be
+   connected.
+``timeout``
+   A value of type :ref:`PRIntervalTime` specifying the time limit for
+   completion of the connect operation.
+
+
+Returns
+~~~~~~~
+
+The function returns one of the following values:
+
+-  Upon successful completion of connection setup, ``PR_SUCCESS``.
+-  If unsuccessful, ``PR_FAILURE``. Further information can be obtained
+   by calling :ref:`PR_GetError`.
+
+
+Description
+-----------
+
+:ref:`PR_Connect` is usually invoked on a TCP socket, but it may also be
+invoked on a UDP socket. Both cases are discussed here.
+
+If the socket is a TCP socket, :ref:`PR_Connect` establishes a TCP
+connection to the peer. If the socket is not bound, it will be bound to
+an arbitrary local address.
+
+:ref:`PR_Connect` blocks until either the connection is successfully
+established or an error occurs. The function uses the lesser of the
+provided timeout and the OS's connect timeout. In particular, if you
+specify ``PR_INTERVAL_NO_TIMEOUT`` as the timeout, the OS's connection
+time limit will be used.
+
+If the socket is a UDP socket, there is no connection setup to speak of,
+since UDP is connectionless. If :ref:`PR_Connect` is invoked on a UDP
+socket, it has an overloaded meaning: :ref:`PR_Connect` merely saves the
+specified address as the default peer address for the socket, so that
+subsequently one can send and receive datagrams from the socket using
+:ref:`PR_Send` and :ref:`PR_Recv` instead of the usual :ref:`PR_SendTo` and
+:ref:`PR_RecvFrom`.