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.
- 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
No errors are defined.
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
The 0MQ documentation was written by Martin Sustrik
<sustrik@250bpm.com[1]> and Martin Lucina <mato@kotelna.sk[2]>.
NOTES
- 1. sustrik@250bpm.com
- mailto:sustrik@250bpm.com
- 2. mato@kotelna.sk
mailto:mato@kotelna.sk