lw_thrrettype loUpdatePipe(void *vse)
{
loService *se = (loService *)vse;
if (!loIS_VALID(se))
{
UL_ERROR((LOGID, "loUpdatePipe() prematurely terminated"));
lw_RETURN;
}
UL_TRACE((LOGID, "loUpdatePipe() started..."));
loThrControl_accept(&se->update_pipe);
lw_mutex_lock(&se->update_pipe.lk);
for(;; lw_conds_wait(&se->update_pipe.cond, &se->update_pipe.lk))
if (0 != se->update_pipe.tstate)
{
if (0 > se->update_pipe.tstate) break; /* terminate thread */
lw_mutex_unlock(&se->update_pipe.lk);
lw_rw_wrlock(&se->lkPrim);
lw_mutex_lock(&se->update_pipe.lk);
if (0 > se->update_pipe.tstate)
{ lw_rw_unlock(&se->lkPrim); break; }/* terminate thread */
{ /* do actual update here */
unsigned ii = se->lastused;
loTagEntry *te = se->tags;
loTagValue *ts = se->secondary;
loTrid prim_changed = se->sec_trid;
while(ii--)
{
te++;
ts++;
if (ts->tvTi)
{
if (ts->tvTi == loCH_TIMESTAMP)
te->prim.tsTime = ts->tvState.tsTime;
else
{
te->primChanged = prim_changed;
te->prim = ts->tvState;
#if LO_KEEP_OLD_CACHE
{ HRESULT hr;
if (S_OK != (hr = VariantCopy(&te->primValue, &ts->tvValue)))
{
LO_E_BADTYPE_QUAL(hr, te->prim.tsError, te->prim.tsQuality);
UL_WARNING((LOGID, "%!l loUpdatePipe(VariantCopy())", hr));
} }
#else
VariantClear(&te->primValue);
te->primValue = ts->tvValue;
VARIANTINIT(&ts->tvValue);
#endif
}
ts->tvTi = 0;
}
}
}
se->prim_trid = se->sec_trid;
#if 0 != LO_EV_TIMESTAMP
if (se->ts_prim != se->ts_sec)
{
freeX(se->ts_prim);
se->ts_prim = se->ts_sec;
}
memcpy(se->ts_prim,
se->ts_prim + se->ts_size,
se->ts_size * sizeof(FILETIME));
#endif
lw_rw_unlock(&se->lkPrim);
se->update_pipe.tstate = 0;
lw_condb_broadcast(&se->lkTridWait);
}
loThrControl_finish(&se->update_pipe);
lw_mutex_unlock(&se->update_pipe.lk);
UL_NOTICE((LOGID, "loUpdatePipe() finished"));
lw_RETURN;
}
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;
}
loTrid loCacheUpdate(loService *se, unsigned count, loTagValue taglist[], FILETIME *timestamp)
{
unsigned ii;
loTagValue *ts;
#if 0 != LO_FILL_TIMESTAMP
FILETIME ft;
#endif
// UL_DEBUG((LOGID, "loCacheUpdate(%p %u %p)", se, count, taglist));
if (!loSERVICE_OK(se)) return 0;//EBADF; /*ERROR:EARG*/
if (!timestamp && (0 >= count || !taglist)) return 0;
#if 0 != LO_FILL_TIMESTAMP
#if 1 == LO_FILL_TIMESTAMP
se->driver.ldCurrentTime(&se->cactx, &ft);
#else
if (timestamp) ft = *timestamp;
else memset(&ft, 0, sizeof(ft));
#endif
#endif
if (!(ts = loCacheLock(se)))
{
UL_INFO((LOGID, "loCacheUpdate() lock failed"));
return 0;//-1; /*ERROR:out-of-service*/
}
for(ii = 0; ii < count; ii++, taglist++)
{
loTagId ti;
if (0 == (ti = taglist->tvTi)) continue;
else if (ti < 1 || ti > se->lastused/*tag_count*/)
{
/*rv = -1;*//*ERROR:BAD ti*/
UL_INFO((LOGID, "loCacheUpdate(BAD ti:%u)", ii));
continue;
}
else
{
HRESULT hr;
loTagValue *tv = &ts[ti];
tv->tvState = taglist->tvState;
#if 0 != LO_FILL_TIMESTAMP
if (!IsFILETIME(tv->tvState.tsTime)) tv->tvState.tsTime = ft;
#endif
/* hr = (V_ISBYREF(&taglist->tvValue)?
VariantCopyInd(&tv->tvValue, &taglist->tvValue):
VariantCopy(&tv->tvValue, &taglist->tvValue)); */
hr = VariantCopy(&tv->tvValue, &taglist->tvValue);
if (S_OK != hr)
{
LO_E_BADTYPE_QUAL(hr, tv->tvState.tsError,
tv->tvState.tsQuality);
/*rv = -1;*//*ERROR:BAD VALUE*/
UL_WARNING((LOGID, "%!l loCacheUpdate(VariantCopy())", hr));
}
tv->tvTi = ti;
}
}
return loCacheUnlock(se, timestamp);
/* return rv; */
}
