long dbcar(char *precordname, int level)
{
DBENTRY dbentry;
DBENTRY *pdbentry=&dbentry;
long status;
dbCommon *precord;
dbRecordType *pdbRecordType;
dbFldDes *pdbFldDes;
DBLINK *plink;
int ncalinks=0;
int nconnected=0;
int noReadAccess=0;
int noWriteAccess=0;
unsigned long nDisconnect=0;
unsigned long nNoWrite=0;
caLink *pca;
int j;
if (!precordname || precordname[0] == '\0' || !strcmp(precordname, "*")) {
precordname = NULL;
printf("CA links in all records\n\n");
} else {
printf("CA links in record named '%s'\n\n", precordname);
}
dbInitEntry(pdbbase,pdbentry);
status = dbFirstRecordType(pdbentry);
while (!status) {
status = dbFirstRecord(pdbentry);
while (!status) {
if (precordname ?
!strcmp(precordname, dbGetRecordName(pdbentry)) :
!dbIsAlias(pdbentry)) {
pdbRecordType = pdbentry->precordType;
precord = (dbCommon *)pdbentry->precnode->precord;
for (j=0; j<pdbRecordType->no_links; j++) {
pdbFldDes = pdbRecordType->papFldDes[pdbRecordType->link_ind[j]];
plink = (DBLINK *)((char *)precord + pdbFldDes->offset);
dbLockSetGblLock();
if (plink->type == CA_LINK) {
ncalinks++;
pca = (caLink *)plink->value.pv_link.pvt;
if (pca
&& pca->chid
&& (ca_field_type(pca->chid) != TYPENOTCONN)) {
nconnected++;
nDisconnect += pca->nDisconnect;
nNoWrite += pca->nNoWrite;
if (!ca_read_access(pca->chid)) noReadAccess++;
if (!ca_write_access(pca->chid)) noWriteAccess++;
if (level>1) {
int rw = ca_read_access(pca->chid) |
ca_write_access(pca->chid) << 1;
static const char *rights[4] = {
"No Access", "Read Only",
"Write Only", "Read/Write"
};
int mask = plink->value.pv_link.pvlMask;
printf("%28s.%-4s ==> %-28s (%lu, %lu)\n",
precord->name,
pdbFldDes->name,
plink->value.pv_link.pvname,
pca->nDisconnect,
pca->nNoWrite);
printf("%21s [%s%s%s%s] host %s, %s\n", "",
mask & pvlOptInpNative ? "IN" : " ",
mask & pvlOptInpString ? "IS" : " ",
mask & pvlOptOutNative ? "ON" : " ",
mask & pvlOptOutString ? "OS" : " ",
ca_host_name(pca->chid),
rights[rw]);
}
} else {
if (level>0) {
printf("%28s.%-4s --> %-28s (%lu, %lu)\n",
precord->name,
pdbFldDes->name,
plink->value.pv_link.pvname,
pca->nDisconnect,
pca->nNoWrite);
}
}
}
dbLockSetGblUnlock();
}
if (precordname) goto done;
}
status = dbNextRecord(pdbentry);
}
status = dbNextRecordType(pdbentry);
}
done:
if ((level > 1 && nconnected > 0) ||
(level > 0 && ncalinks != nconnected)) printf("\n");
printf("Total %d CA link%s; ",
ncalinks, (ncalinks != 1) ? "s" : "");
printf("%d connected, %d not connected.\n",
nconnected, (ncalinks - nconnected));
printf(" %d can't read, %d can't write.",
noReadAccess, noWriteAccess);
printf(" (%lu disconnects, %lu writes prohibited)\n\n",
nDisconnect, nNoWrite);
dbFinishEntry(pdbentry);
if ( level > 2 && dbCaClientContext != 0 ) {
ca_context_status ( dbCaClientContext, level - 2 );
}
return(0);
}
static long dbPutFieldLink(DBADDR *paddr,
short dbrType, const void *pbuffer, long nRequest)
{
dbCommon *precord = paddr->precord;
dbFldDes *pfldDes = paddr->pfldDes;
long special = paddr->special;
DBLINK *plink = (DBLINK *)paddr->pfield;
const char *pstring = (const char *)pbuffer;
DBENTRY dbEntry;
DBADDR dbaddr;
struct dsxt *old_dsxt = NULL;
struct dset *new_dset = NULL;
struct dsxt *new_dsxt = NULL;
long status;
int isDevLink;
short scan;
switch (dbrType) {
case DBR_CHAR:
case DBR_UCHAR:
if (pstring[nRequest - 1] != '\0')
return S_db_badDbrtype;
break;
case DBR_STRING:
break;
default:
return S_db_badDbrtype;
}
dbInitEntry(pdbbase, &dbEntry);
status = dbFindRecord(&dbEntry, precord->name);
if (!status) status = dbFindField(&dbEntry, pfldDes->name);
if (status) goto finish;
isDevLink = ellCount(&precord->rdes->devList) > 0 &&
(strcmp(pfldDes->name, "INP") == 0 ||
strcmp(pfldDes->name, "OUT") == 0);
dbLockSetGblLock();
dbLockSetRecordLock(precord);
scan = precord->scan;
if (isDevLink) {
devSup *pdevSup = dbDTYPtoDevSup(precord->rdes, precord->dtyp);
if (pdevSup) {
new_dset = pdevSup->pdset;
new_dsxt = pdevSup->pdsxt;
}
if (precord->dset) {
pdevSup = dbDSETtoDevSup(precord->rdes, precord->dset);
if (pdevSup)
old_dsxt = pdevSup->pdsxt;
}
if (new_dsxt == NULL ||
new_dsxt->add_record == NULL ||
(precord->dset && old_dsxt == NULL) ||
(old_dsxt && old_dsxt->del_record == NULL)) {
status = S_db_noSupport;
goto unlock;
}
if (scan == menuScanI_O_Intr) {
scanDelete(precord);
precord->scan = menuScanPassive;
}
if (old_dsxt) {
status = old_dsxt->del_record(precord);
if (status)
goto restoreScan;
}
}
switch (plink->type) { /* Old link type */
case DB_LINK:
free(plink->value.pv_link.pvt);
plink->value.pv_link.pvt = 0;
plink->type = PV_LINK;
plink->value.pv_link.getCvt = 0;
plink->value.pv_link.pvlMask = 0;
plink->value.pv_link.lastGetdbrType = 0;
dbLockSetSplit(precord);
break;
case CA_LINK:
dbCaRemoveLink(plink);
plink->type = PV_LINK;
plink->value.pv_link.getCvt = 0;
plink->value.pv_link.pvlMask = 0;
plink->value.pv_link.lastGetdbrType = 0;
break;
case CONSTANT:
break; /* do nothing */
case PV_LINK:
case MACRO_LINK:
break; /* should never get here */
default: /* Hardware address */
if (!isDevLink) {
status = S_db_badHWaddr;
goto restoreScan;
}
break;
}
if (special) status = dbPutSpecial(paddr, 0);
if (!status) status = dbPutString(&dbEntry, pstring);
if (!status && special) status = dbPutSpecial(paddr, 1);
if (status) {
if (isDevLink) {
precord->dset = NULL;
precord->pact = TRUE;
}
goto postScanEvent;
}
if (isDevLink) {
precord->dpvt = NULL;
precord->dset = new_dset;
precord->pact = FALSE;
status = new_dsxt->add_record(precord);
if (status) {
precord->dset = NULL;
precord->pact = TRUE;
goto postScanEvent;
}
}
switch (plink->type) { /* New link type */
case PV_LINK:
if (plink == &precord->tsel)
recGblTSELwasModified(plink);
plink->value.pv_link.precord = precord;
if (!(plink->value.pv_link.pvlMask & (pvlOptCA|pvlOptCP|pvlOptCPP)) &&
(dbNameToAddr(plink->value.pv_link.pvname, &dbaddr) == 0)) {
/* It's a DB link */
DBADDR *pdbAddr;
plink->type = DB_LINK;
pdbAddr = dbMalloc(sizeof(struct dbAddr));
*pdbAddr = dbaddr; /* NB: structure copy */;
plink->value.pv_link.pvt = pdbAddr;
dbLockSetRecordLock(pdbAddr->precord);
dbLockSetMerge(precord, pdbAddr->precord);
} else { /* Make it a CA link */
char *pperiod;
plink->type = CA_LINK;
if (pfldDes->field_type == DBF_INLINK) {
plink->value.pv_link.pvlMask |= pvlOptInpNative;
}
dbCaAddLink(plink);
if (pfldDes->field_type == DBF_FWDLINK) {
pperiod = strrchr(plink->value.pv_link.pvname, '.');
if (pperiod && strstr(pperiod, "PROC"))
plink->value.pv_link.pvlMask |= pvlOptFWD;
}
}
break;
case CONSTANT:
break;
case DB_LINK:
case CA_LINK:
case MACRO_LINK:
break; /* should never get here */
default: /* Hardware address */
if (!isDevLink) {
status = S_db_badHWaddr;
goto postScanEvent;
}
break;
}
db_post_events(precord, plink, DBE_VALUE | DBE_LOG);
restoreScan:
if (isDevLink &&
scan == menuScanI_O_Intr) { /* undo scanDelete() */
precord->scan = scan;
scanAdd(precord);
}
postScanEvent:
if (scan != precord->scan)
db_post_events(precord, &precord->scan, DBE_VALUE|DBE_LOG);
unlock:
dbLockSetGblUnlock();
finish:
dbFinishEntry(&dbEntry);
return status;
}
