//-------------------------------------------------------------------------------------------------
bool FIXReader::read(f8String& to) // read a complete FIX message
{
char msg_buf[_max_msg_len] = {};
int result(sockRead(msg_buf, _bg_sz));
if (result == static_cast<int>(_bg_sz))
{
char bt;
size_t offs(_bg_sz);
do // get the last chrs of bodylength and ^A
{
if (sockRead(&bt, 1) != 1)
return false;
if (!isdigit(bt) && bt != default_field_separator)
throw IllegalMessage(msg_buf);
msg_buf[offs++] = bt;
}
while (bt != default_field_separator && offs < _max_msg_len);
to.assign(msg_buf, offs);
f8String tag, bgstr, len;
unsigned result;
if ((result = MessageBase::extract_element(to.data(), to.size(), tag, bgstr)))
{
if (tag != "8")
throw IllegalMessage(to);
if (bgstr != _session.get_ctx()._beginStr) // invalid FIX version
throw InvalidVersion(bgstr);
if ((result = MessageBase::extract_element(to.data() + result, to.size() - result, tag, len)))
{
if (tag != "9")
throw IllegalMessage(to);
const unsigned mlen(fast_atoi<unsigned>(len.c_str()));
if (mlen == 0 || mlen > _max_msg_len - _bg_sz - _chksum_sz) // invalid msglen
throw InvalidBodyLength(mlen);
// read the body
if ((result = sockRead(msg_buf, mlen) != static_cast<int>(mlen)))
return false;
// read the checksum
if ((result = sockRead(msg_buf + mlen, _chksum_sz) != static_cast<int>(_chksum_sz)))
return false;
to.append(msg_buf, mlen + _chksum_sz);
_session.update_received();
//string ts;
//cerr << GetTimeAsStringMS(ts, &_session.get_last_received(), 9) << endl;
return true;
}
}
throw IllegalMessage(to);
}
return false;
}
QamUdpSocket::QamUdpSocket(QObject* parent )
: QUdpSocket(parent)
, m_distAddr( QHostAddress::Null )
, m_distPort( 0 )
, m_hostResolved( false )
{
connect( this, SIGNAL( readyRead() ), this, SLOT( sockRead() ) ) ;
}
