NAME

       xs_msg_copy - copy content of a message to another message

SYNOPSIS

       int xs_msg_copy (xs_msg_t *dest, xs_msg_t *src);

DESCRIPTION

       The xs_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.

           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 xs_msg_copy(), doing so can result in undefined behaviour. If what you need is an actual
           hard copy, allocate a new message using xs_msg_init_size() and copy the message content using
           memcpy().

           Caution

           Never access xs_msg_t members directly, instead always use the xs_msg family of functions.

RETURN VALUE

       The xs_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.

SEE ALSO

       xs_msg_move(3) xs_msg_init(3) xs_msg_init_size(3) xs_msg_init_data(3) xs_msg_close(3) xs(7)

AUTHORS

       The Crossroads documentation was written by Martin Sustrik <sustrik@250bpm.com[1]> and Martin Lucina
       <martin@lucina.net[2]>.

NOTES

        1. sustrik@250bpm.com
           mailto:sustrik@250bpm.com

        2. martin@lucina.net
           mailto:martin@lucina.net

Crossroads I/O 1.2.0                               06/13/2012                                     XS_MSG_COPY(3)