CDB_Result *CMySQL_LangCmd::Result()
{
m_HasMoreResults = false;
_ASSERT(m_Connect);
return Create_Result(*new CMySQL_RowResult(*m_Connect));
}
CDB_Result* CODBC_RPCCmd::Result()
{
enum {eNameStrLen = 64};
if (m_Res) {
delete m_Res;
m_Res = 0;
m_HasMoreResults = xCheck4MoreResults();
}
if ( !WasSent() ) {
string err_message = "A command has to be sent first." + GetDbgInfo();
DATABASE_DRIVER_ERROR( err_message, 420010 );
}
if(!m_HasMoreResults) {
SetWasSent(false);
return 0;
}
SQLSMALLINT nof_cols = 0;
odbc::TChar buffer[eNameStrLen];
while(m_HasMoreResults) {
CheckSIE(SQLNumResultCols(GetHandle(), &nof_cols),
"SQLNumResultCols failed", 420011);
if(nof_cols < 1) { // no data in this result set
SQLLEN rc;
CheckSIE(SQLRowCount(GetHandle(), &rc),
"SQLRowCount failed", 420013);
m_RowCount = rc;
m_HasMoreResults = xCheck4MoreResults();
continue;
}
if(nof_cols == 1) { // it could be a status result
SQLSMALLINT l;
CheckSIE(SQLColAttribute(GetHandle(),
1,
SQL_DESC_LABEL,
buffer,
sizeof(buffer),
&l,
0),
"SQLColAttribute failed", 420015);
if(util::strcmp(buffer, _T_NCBI_ODBC("STpROCrETURNsTATUS")) == 0) {
//this is a status result
m_HasStatus = true;
m_Res = new CODBC_StatusResult(*this);
}
}
if(!m_Res) {
if(m_HasStatus) {
m_HasStatus = false;
m_Res = new CODBC_ParamResult(*this, nof_cols);
}
else {
m_Res = new CODBC_RowResult(*this, nof_cols, &m_RowCount);
}
}
return Create_Result(*m_Res);
}
SetWasSent(false);
return 0;
}
RETCODE CDBL_Connection::x_Results(DBPROCESS* pLink)
{
unsigned int x_Status = 0x1;
unique_ptr<CDB_Result> dbres;
unique_ptr<impl::CResult> res;
while ((x_Status & 0x1) != 0) {
if ((x_Status & 0x20) != 0) { // check for return parameters from exec
x_Status ^= 0x20;
int n;
if (GetResultProcessor() && (n = Check(dbnumrets(pLink))) > 0) {
res.reset(new CDBL_ParamResult(*this, pLink, n));
dbres.reset(Create_Result(*res));
GetResultProcessor()->ProcessResult(*dbres);
dbres.reset();
res.reset();
}
continue;
}
if ((x_Status & 0x40) != 0) { // check for ret status
x_Status ^= 0x40;
if (GetResultProcessor() && Check(dbhasretstat(pLink))) {
res.reset(new CDBL_StatusResult(*this, pLink));
dbres.reset(Create_Result(*res));
GetResultProcessor()->ProcessResult(*dbres);
dbres.reset();
res.reset();
}
continue;
}
if ((x_Status & 0x10) != 0) { // we do have a compute result
res.reset(new CDBL_ComputeResult(*this, pLink, &x_Status));
dbres.reset(Create_Result(*res));
if(GetResultProcessor()) {
GetResultProcessor()->ProcessResult(*dbres);
}
else {
while(dbres->Fetch())
continue;
}
dbres.reset();
res.reset();
}
RETCODE rc = Check(dbresults(pLink));
switch (rc) {
case SUCCEED:
x_Status |= 0x60;
if (DBCMDROW(pLink) == SUCCEED) { // we could get rows in result
if(!GetResultProcessor()) {
while(1) {
switch(Check(dbnextrow(pLink))) {
case NO_MORE_ROWS:
case FAIL:
case BUF_FULL: break;
default: continue;
}
break;
}
continue;
}
if (Check(dbnumcols(pLink)) == 1) {
int ct = Check(dbcoltype(pLink, 1));
if ((ct == SYBTEXT) || (ct == SYBIMAGE)) {
res.reset(new CDBL_BlobResult(*this, pLink));
}
}
if ( !res.get() )
res.reset(new CDBL_RowResult(*this, pLink, &x_Status));
dbres.reset(Create_Result(*res));
GetResultProcessor()->ProcessResult(*dbres);
dbres.reset();
res.reset();
} else {
continue;
}
case NO_MORE_RESULTS:
x_Status = 2;
break;
default:
return FAIL;
}
break;
}
return SUCCEED;
}
