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.

           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, allocate a new message using zmq_msg_init_size() and copy the message content using
           memcpy().

           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.

SEE ALSO

       zmq_msg_move(3) zmq_msg_init(3) zmq_msg_init_size(3) zmq_msg_init_data(3) zmq_msg_close(3) zmq(7)

AUTHORS

       This manual page was written by the 0MQ community.