ZMQ_MSG_COPY(3) 0MQ Manual ZMQ_MSG_COPY(3)NAMEzmq_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 ALSOzmq_msg_move(3)zmq_msg_init(3)zmq_msg_init_size(3)zmq_msg_init_data(3)zmq_msg_close(3)zmq(7)AUTHORS
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0MQ 4.0.1 03/10/2014 ZMQ_MSG_COPY(3)
