int zmq::msg_t::copy (msg_t &src_)
{
// Check the validity of the source.
if (unlikely (!src_.check ())) {
errno = EFAULT;
return -1;
}
int rc = close ();
if (unlikely (rc < 0))
return rc;
if (src_.u.base.type == type_lmsg) {
// One reference is added to shared messages. Non-shared messages
// are turned into shared messages and reference count is set to 2.
if (src_.u.lmsg.flags & msg_t::shared)
src_.u.lmsg.content->refcnt.add (1);
else {
src_.u.lmsg.flags |= msg_t::shared;
src_.u.lmsg.content->refcnt.set (2);
}
}
*this = src_;
return 0;
}
int zmq::msg_t::move(msg_t &src_) {
// Check the validity of the source.
if (unlikely (!src_.check())) {
errno = EFAULT;
return -1;
}
int rc = close();
if (unlikely (rc < 0))
return rc;
*this = src_;
rc = src_.init();
if (unlikely (rc < 0))
return rc;
return 0;
}
