short ExExeUtilAQRTcb::work()
{
// if no parent request, return
if (qparent_.down->isEmpty())
return WORK_OK;
ex_queue_entry * pentry_down = qparent_.down->getHeadEntry();
ExExeUtilPrivateState & pstate =
*((ExExeUtilPrivateState*) pentry_down->pstate);
ContextCli *currContext =
getGlobals()->castToExExeStmtGlobals()->castToExMasterStmtGlobals()->
getStatement()->getContext();
AQRInfo * aqr = currContext->aqrInfo();
while (1)
{
switch (step_)
{
case EMPTY_:
{
if (aqrTdb().getTask() == ComTdbExeUtilAQR::GET_)
{
// GET aqr entries and display them
aqr->position();
step_ = RETURN_HEADER_;
}
else
{
step_ = SET_ENTRY_;
}
}
break;
case SET_ENTRY_:
{
if (aqr->setAQREntry(aqrTdb().getTask(),
aqrTdb().sqlcode_, aqrTdb().nskcode_,
aqrTdb().retries_, aqrTdb().delay_,
aqrTdb().type_,
0, NULL, 0, 0))
{
// error
step_ = HANDLE_ERROR_;
break;
}
step_ = DONE_;
}
break;
case RETURN_HEADER_:
{
// if no room in up queue for 4 display rows,
// won't be able to return data/status.
// Come back later.
if ((qparent_.up->getSize() - qparent_.up->getLength()) < 5)
return -1;
moveRowToUpQueue(" ");
moveRowToUpQueue(" SQLCODE PLATFORMERROR RETRIES DELAY TYPE ");
moveRowToUpQueue("============================================================");
moveRowToUpQueue(" ");
step_ = RETURNING_ENTRY_;
}
break;
case RETURNING_ENTRY_:
{
// if no room in up queue, won't be able to return data/status.
// Come back later.
if (qparent_.up->isFull())
return WORK_OK;
Lng32 sqlcode, nskcode, retries, delay, type, intAQR;
Lng32 eof = 0;
eof =
aqr->getNextAQREntry(sqlcode, nskcode, retries, delay, type,
intAQR);
if (eof)
{
step_ = DONE_;
break;
}
// internal aqr entry, no need to display
if (intAQR)
break;
char formattedStr[400];
str_sprintf(formattedStr, "%9d %13d %9d %9d %9d",
sqlcode, nskcode, retries, delay, type);
moveRowToUpQueue(formattedStr);
}
break;
case HANDLE_ERROR_:
{
if (qparent_.up->isFull())
return WORK_OK;
ExHandleErrors(qparent_,
pentry_down,
0,
getGlobals(),
NULL,
(ExeErrorCode)8931,
NULL,
NULL
);
step_ = DONE_;
}
break;
case DONE_:
{
if (qparent_.up->isFull())
return WORK_OK;
// all ok. Return EOF.
ex_queue_entry * up_entry = qparent_.up->getTailEntry();
up_entry->upState.parentIndex =
pentry_down->downState.parentIndex;
up_entry->upState.setMatchNo(0);
up_entry->upState.status = ex_queue::Q_NO_DATA;
// insert into parent
qparent_.up->insert();
step_ = EMPTY_;
qparent_.down->removeHead();
return WORK_OK;
}
break;
} // switch
}
return 0;
}
