void lo_check_ev_timestamp(unsigned count, FILETIME *timestamp,
const FILETIME *master)
{
while(count--)
{
if (!IsFILETIME(*timestamp))
*timestamp = loFT_SUBST(*timestamp, master);
timestamp++;
}
}
static void rio_cache_read(loService *se, loUpdList *upl)
{
HRESULT mastererr = upl->master_err;
HRESULT masterqual = upl->master_qual;
HRESULT *errors = upl->errors;
WORD *quality = upl->quality;
VARIANT *variant = upl->variant;
VARTYPE *vartype = upl->vartype;
FILETIME *timestamp = upl->timestamp;
loTagPair *tpl = upl->tagpair;
loTagEntry *tags = se->tags;
unsigned ii;
unsigned localize_max = 0;
unsigned localize_min = 0;
lw_rw_rdlock(&se->lkPrim);
for(ii = upl->used; ii--; errors++, quality++, variant++,
vartype++, timestamp++, tpl++)
{
if (tpl->tpTi)
{
HRESULT hr;
loTagEntry *te = &tags[tpl->tpTi];
#if 1 == LO_EV_TIMESTAMP
if (!IsFILETIME(te->prim.tsTime))
*timestamp = loFT_SUBST(te->prim.tsTime, se->ts_prim);
else
#endif
*timestamp = te->prim.tsTime;
*errors = te->prim.tsError;
#ifdef VAR_CHANGETYPE
*quality = te->prim.tsQuality;
hr = VAR_CHANGETYPE(variant, &te->primValue, *vartype);
#else
loCONV convtype = (loCONV)*quality;
*quality = te->prim.tsQuality;
switch(convtype/*lo_check_conversion(&te->attr, *vartype)*/)
{
case loCONV_CHANGE:
hr = VARIANTCHANGEt(variant, &te->primValue,
upl->rctx.cta, *vartype);
break;
case loCONV_COPY:
hr = VariantCopy(variant, &te->primValue);
break;
case loCONV_ASSIGN:
*variant = te->primValue;
#if 1
loTagPair_init(tpl, 1);
goto Cont;
#else
hr = S_OK;
break;
#endif
case loCONV_CONVERT:
if (S_OK == (hr = VariantCopy(variant, &te->primValue)))
{
if (!localize_max)
localize_min = quality - upl->quality;
localize_max = quality - upl->quality + 1;
goto PreserveTP;
}
break;
}
loTagPair_init(tpl, 1);
PreserveTP:
#endif
if (S_OK != hr)
{
LO_E_BADTYPE_QUAL(hr, *errors, *quality);
masterqual = S_FALSE;
mastererr = S_FALSE;
continue;
}
Cont:;
}
if (OPC_QUALITY_GOOD != (OPC_QUALITY_MASK & *quality)) masterqual = S_FALSE;
if (S_OK != *errors) mastererr = S_FALSE;
}
#if 2 == LO_EV_TIMESTAMP
if (IsFILETIME(*se->ts_prim))
lo_check_ev_timestamp(upl->used, upl->timestamp, se->ts_prim);
#endif
lw_rw_unlock(&se->lkPrim);
if (localize_max)
se->driver.ldConvertTags(&upl->rctx.cactx,
localize_max - localize_min,
upl->tagpair + localize_min,
upl->variant + localize_min,
upl->quality + localize_min,
upl->errors + localize_min,
&mastererr, &masterqual,
upl->variant + localize_min,
upl->vartype + localize_min,
upl->rctx.cta.vc_lcid);
upl->master_qual = masterqual;
/*if (upl->master_err == S_OK)*/
upl->master_err = mastererr;
}
