zmq_msg_copy(3)

1ZMQ_MSG_COPY(3)                   0MQ Manual                   ZMQ_MSG_COPY(3)
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NAME

6       zmq_msg_copy - copy content of a message to another message
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SYNOPSIS

9       int zmq_msg_copy (zmq_msg_t *dest, zmq_msg_t *src);
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DESCRIPTION

12       The zmq_msg_copy() function shall copy the message object referenced by
13       src to the message object referenced by dest. The original content of
14       dest, if any, shall be released.
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16           Caution
17           The implementation may choose not to physically copy the message
18           content, rather to share the underlying buffer between src and
19           dest. Avoid modifying message content after a message has been
20           copied with zmq_msg_copy(), doing so can result in undefined
21           behaviour. If what you need is an actual hard copy, allocate a new
22           message using zmq_msg_init_size() and copy the message content
23           using memcpy().
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25           Caution
26           Never access zmq_msg_t members directly, instead always use the
27           zmq_msg family of functions.
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RETURN VALUE

30       The zmq_msg_copy() function shall return zero if successful. Otherwise
31       it shall return -1 and set errno to one of the values defined below.
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ERRORS

34       No errors are defined.
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AUTHORS

41       This 0MQ manual page was written by Martin Sustrik
42       <sustrik@250bpm.com[1]> and Martin Lucina <mato@kotelna.sk[2]>.
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NOTES

45        1. sustrik@250bpm.com
46           mailto:sustrik@250bpm.com
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48        2. mato@kotelna.sk
49           mailto:mato@kotelna.sk
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530MQ 2.1.4                         03/30/2011                   ZMQ_MSG_COPY(3)