Initial ZMQ bindings.

vendor/ZMQ/doc/zmq_msg_copy.txt

@@ -0,0 +1,72 @@
+zmq_msg_copy(3)
+===============
+
+
+NAME
+----
+zmq_msg_copy - copy content of a message to another message
+
+
+SYNOPSIS
+--------
+*int zmq_msg_copy (zmq_msg_t '*dest', zmq_msg_t '*src');*
+
+
+DESCRIPTION
+-----------
+The _zmq_msg_copy()_ function shall copy the message object referenced by 'src'
+to the message object referenced by 'dest'. The original content of 'dest', if
+any, shall be released. You must initialise 'dest' before copying to it.
+
+CAUTION: The implementation may choose not to physically copy the message
+content, rather to share the underlying buffer between 'src' and 'dest'. Avoid
+modifying message content after a message has been copied with
+_zmq_msg_copy()_, doing so can result in undefined behaviour. If what you need
+is an actual hard copy, initialize a new message using _zmq_msg_init_buffer()_
+with the message content.
+
+CAUTION: Never access 'zmq_msg_t' members directly, instead always use the
+_zmq_msg_ family of functions.
+
+
+RETURN VALUE
+------------
+The _zmq_msg_copy()_ function shall return zero if successful. Otherwise it
+shall return `-1` and set 'errno' to one of the values defined below.
+
+
+ERRORS
+------
+*EFAULT*::
+Invalid message.
+
+
+EXAMPLE
+-------
+.Copying a message
+----
+zmq_msg_t msg;
+zmq_msg_init_buffer (&msg, "Hello, World", 12);
+zmq_msg_t copy;
+zmq_msg_init (&copy);
+zmq_msg_copy (&copy, &msg);
+...
+zmq_msg_close (&copy);
+zmq_msg_close (&msg);
+----
+
+SEE ALSO
+--------
+linkzmq:zmq_msg_move[3]
+linkzmq:zmq_msg_init[3]
+linkzmq:zmq_msg_init_size[3]
+linkzmq:zmq_msg_init_buffer[3]
+linkzmq:zmq_msg_init_data[3]
+linkzmq:zmq_msg_close[3]
+linkzmq:zmq[7]
+
+
+AUTHORS
+-------
+This page was written by the 0MQ community. To make a change please
+read the 0MQ Contribution Policy at <http://www.zeromq.org/docs:contributing>.