ssize_t proto_h16::calc_size(MessageBlock& mb) const
{
uint32_t sz;
if (mb.size() < sizeof(sz)) {
size_t left = sizeof(sz) - mb.size();
memcpy(&sz, mb.rptr(), mb.size());
MessageBlock* cont = mb.cont();
if (cont != NULL && cont->size() >= left) {
memcpy((byte *)&sz + mb.size(), cont->rptr(), left);
}
else {
return 0;
}
}
else {
memcpy(&sz, mb.rptr(), sizeof(sz));
}
if (sz >= head_size() && sz >= min_ && sz <= max_)
return sz;
errno = EINVAL;
return -1;
}
int Connection::split_block(size_t msize)
{
//MessageRequest* sub;
int retval = -1;
#if 1
assert(0);
#else
// TODO: need it?
if (mreq_->size() > msize) {
sub = mreq_->extract(msize);
}
else {
sub = mreq_;
MessageBlock* mb = sub->cont();
size_t left = msize - mreq_->size();
while (left > 0) {
if (left < mb->size()) {
mreq_ = new MessageRequest(mb->dblock_);
break;
}
else if (left == mb->size()) {
mreq_ = new MessageRequest(mb->cont());
mb->cont(NULL);
}
else {
left -= mb->size();
continue;
}
}
}
if (sub != NULL) {
if ((retval = sched_->on_message(sub)) < 0) {
SYSLOG_ERROR("%s drop sub message(len=%d, data=%s)",
name(), (unsigned long)sub->tsize(),
beyondy::toString((unsigned char *)sub->rptr(), std::min(16, sub->tsize())).c_str(),
errno);
}
}
else {
retval = -1;
SYSLOG_ERROR("%s extract sub message failed: %d", name(), errno);
}
#endif
return retval;
}