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