void PreparedStatement::parseDsqlMessage(const dsql_msg* dsqlMsg, Array<dsc>& values,
MsgMetadata* msgMetadata, UCharBuffer& msg)
{
// hvlad: Parameters in dsqlMsg->msg_parameters almost always linked in descending
// order by par_index. The only known exception is EXECUTE BLOCK statement.
// To generate correct metadata we must walk params in ascending par_index order.
// So store all params in array in an ascending par_index order despite of
// order in linked list.
// ASF: Input parameters don't come necessarily in ascending or descending order,
// so I changed the code to use a SortedArray.
// AP: removed assertions for correct parameters order - useless with SortedArray.
SortedArray<const dsql_par*, InlineStorage<const dsql_par*, 16>, const dsql_par*,
DefaultKeyValue<const dsql_par*>, ParamCmp> params;
for (size_t i = 0; i < dsqlMsg->msg_parameters.getCount(); ++i)
{
dsql_par* par = dsqlMsg->msg_parameters[i];
if (par->par_index)
params.add(par);
}
size_t paramCount = params.getCount();
values.resize(paramCount * 2);
msgMetadata->setItemsCount(paramCount);
for (size_t i = 0; i < paramCount; ++i)
dscToMetaItem(¶ms[i]->par_desc, msgMetadata->getItem(i));
msgMetadata->makeOffsets();
msg.resize(msgMetadata->getMessageLength());
dsc* value = values.begin();
for (size_t i = 0; i < paramCount; ++i)
{
// value
*value = params[i]->par_desc;
value->dsc_address = msg.begin() + msgMetadata->getItem(i).offset;
++value;
// NULL indicator
value->makeShort(0);
value->dsc_address = msg.begin() + msgMetadata->getItem(i).nullInd;
// set NULL indicator value
*((SSHORT*) value->dsc_address) = -1;
++value;
}
}
// Parse routine BLR.
void Routine::parseBlr(thread_db* tdbb, CompilerScratch* csb, bid* blob_id)
{
Jrd::Attachment* attachment = tdbb->getAttachment();
UCharBuffer tmp;
if (blob_id)
{
blb* blob = blb::open(tdbb, attachment->getSysTransaction(), blob_id);
ULONG length = blob->blb_length + 10;
UCHAR* temp = tmp.getBuffer(length);
length = blob->BLB_get_data(tdbb, temp, length);
tmp.resize(length);
}
parseMessages(tdbb, csb, BlrReader(tmp.begin(), (unsigned) tmp.getCount()));
JrdStatement* statement = getStatement();
PAR_blr(tdbb, NULL, tmp.begin(), (ULONG) tmp.getCount(), NULL, &csb, &statement, false, 0);
setStatement(statement);
if (!blob_id)
setImplemented(false);
}
