qryproc()
{
register QTREE *root;
register QTREE *q;
register int i;
register int mode;
register int result_num;
register int retr_uniq;
extern long AAccuread;
extern long AAccuwrite;
extern long AAccusread;
extern int derror();
extern QTREE *trbuild();
extern QTREE *readqry();
# ifdef xDTM
if (AAtTf(76, 1))
timtrace(23, 0);
# endif
# ifdef xDTR1
if (AAtTf(50, 0))
AAccuread = AAccusread = AAccuwrite = 0;
# endif
/* initialize query buffer */
initbuf(Qbuf, QBUFSIZ, QBUFFULL, derror);
/* init various variables in decomp for start of this query */
startdecomp();
/* Read in query, range table and mode */
root = readqry();
mode = Qmode;
/* Initialize relation descriptors */
initdesc(mode);
/* re-build the tree */
root = trbuild(root);
if (!root)
derror(STACKFULL);
/* locate pointers to QLEND and TREE nodes */
for (q = root->right; q->sym.type != QLEND; q = q->right)
continue;
Qle = q;
for (q = root->left; q->sym.type != TREE; q = q->left)
continue;
Tr = q;
/* map the complete tree */
mapvar(root, 0);
/* set logical locks */
lockit(root, Resultvar);
/* If there is no result variable then this must be a retrieve to the terminal */
Qry_mode = Resultvar < 0 ? (int) mdRETTERM : mode;
/* if the mode is retrieve_unique, then make a result rel */
retr_uniq = mode == (int) mdRET_UNI;
if (retr_uniq)
{
mk_unique(root);
mode = (int) mdRETR;
}
/* get id of result relation */
if (Resultvar < 0)
result_num = NORESULT;
else
result_num = Rangev[Resultvar].relnum;
/* evaluate aggregates in query */
aggregate(root);
/* decompose and process aggregate free query */
decomp(root, mode, result_num);
/* If this is a retrieve unique, then retrieve results */
if (retr_uniq)
pr_unique(root, Resultvar);
if (mode != (int) mdRETR)
i = ACK;
else
i = NOACK;
i = endovqp(i);
/* call update processor if batch mode */
if (i == UPDATE)
{
initp();
call_dbu(mdUPDATE, -1);
}
/*
** send eop back to parser to indicate completion
** if UPDATE then return block comes from dbu else
** return block comes from decomp
*/
writeback(i == UPDATE ? -1 : 1);
# ifdef xDTM
if(AAtTf(76, 1))
timtrace(24, 0);
# endif
# ifdef xDTR1
AAtTfp(50, 1, "DECOMP read %ld pages,%ld catalog pages,wrote %ld pages\n",
AAccuread, AAccusread, AAccuwrite);
# endif
/* clean decomp */
reinit();
/* return */
}
HRESULT LightOPCServer::internalAddGroup(
LightOPCGroup *grp,
LPCWSTR szName,
BOOL bActive,
DWORD UpdateRate,
OPCHANDLE hClientGroup,
LONG *pTimeBias,
FLOAT *pPercentDeadband,
DWORD dwLCID,
OPCHANDLE *phServerGroup,
REFIID riid,
LPUNKNOWN *ppUnk
)
{
HRESULT hr = S_OK;
unsigned servindex = 0;
OPCHANDLE servhandle = 0;
loWchar tname[loUNIQUE_LEN];
if (phServerGroup) *phServerGroup = 0;
if (!ppUnk) { hr = E_INVALIDARG; goto Exit; }
*ppUnk = 0;
/* if (!grp && !(grp = new LightOPCGroup()) ||
grp->sstate != loST_READY) { hr = E_OUTOFMEMORY; goto Exit; }*/
/* need assign all group atributes */
grp->ClientHandle = hClientGroup;
grp->UpdateRate = UpdateRate;
grp->Active = bActive != 0;
grp->Deadband = .0f;
if (pPercentDeadband)
{
if (lo_IsNANf(*pPercentDeadband) ||
*pPercentDeadband < 0. ||
*pPercentDeadband > 100.) { hr = E_INVALIDARG; goto Exit; }
grp->Deadband = *pPercentDeadband;
}
if (se->driver.ldCheckLocale &&
se->driver.ldCheckLocale(&ctxt.cactx, dwLCID))
GetLocaleID(&dwLCID);
grp->grLCID = dwLCID;
if (pTimeBias) grp->TimeBias = *pTimeBias;
else
{
TIME_ZONE_INFORMATION tzi;
tzi.Bias = 0;
GetTimeZoneInformation(&tzi);
grp->TimeBias = tzi.Bias;
}
if (szName)
if (!*szName) szName = 0;
else if (S_OK != grp->set_name(szName)) { hr = E_OUTOFMEMORY; goto Exit; }
// grp->sstate = loST_READY;
hr = grp->QueryInterface(riid, (void**)ppUnk);
// grp->sstate = loST_DOWN;
if (S_OK != hr) goto Exit;
lock_write();
if (!szName)
{
if (S_OK == (hr = mk_unique(tname, grp)))
hr = grp->set_name(szName = tname);
}
else if (by_name(szName)) hr = OPC_E_DUPLICATENAME;
if (S_OK == hr)
if (servindex = add(grp))
{
do {
if ((servhandle = ++unique_GroupHandle) == 0)
servhandle = ++unique_GroupHandle;
}
while(by_handle(servhandle));
grp->ServerHandle = servhandle;
ostatus.dwGroupCount++;
}
else { hr = E_OUTOFMEMORY; /* delete grp; will be deleted by caller */ }
unlock();
if (phServerGroup) *phServerGroup = servhandle;
Exit:
if (S_OK == hr)
{
UL_TRACE((LOG_SR("intAddGroup(%ls) i:%u h:%u /%p"),
szName? szName: tname, servindex, servhandle, *ppUnk));
}
else
{
UL_TRACE((LOG_SR("intAddGroup(%ls) =%s"), loWnul(szName), loStrError(hr)));
// if (grp) delete grp;
*ppUnk = 0;
}
return hr;
}
