EPICS Base
7.0.7.0
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Link Support API. More...
#include "link.h"
#include "dbCoreAPI.h"
#include "epicsTypes.h"
#include "epicsTime.h"
#include "dbAddr.h"
#include "dbChannel.h"
Go to the source code of this file.
Classes | |
struct | lset |
Link Support Entry Table. More... | |
Macros | |
#define | dbGetSevr(link, sevr) dbGetAlarm(link, NULL, sevr) |
#define | dbGetAlarmMsg(LINK, STAT, SEVR, BUF, BUFLEN) dbGetAlarmMsg(LINK, STAT, SEVR, BUF, BUFLEN) |
#define | dbGetTimeStampTag(LINK, STAMP, TAG) dbGetTimeStampTag(LINK, STAMP, TAG) |
Typedefs | |
typedef long(* | dbLinkUserCallback )(struct link *plink, void *priv) |
callback routine for locked link operations More... | |
Functions | |
DBCORE_API const char * | dbLinkFieldName (const struct link *plink) |
DBCORE_API void | dbInitLink (struct link *plink, short dbfType) |
DBCORE_API void | dbAddLink (struct dbLocker *locker, struct link *plink, short dbfType, dbChannel *ptarget) |
DBCORE_API void | dbLinkOpen (struct link *plink) |
DBCORE_API void | dbRemoveLink (struct dbLocker *locker, struct link *plink) |
DBCORE_API int | dbLinkIsDefined (const struct link *plink) |
DBCORE_API int | dbLinkIsConstant (const struct link *plink) |
DBCORE_API int | dbLinkIsVolatile (const struct link *plink) |
DBCORE_API long | dbLoadLink (struct link *plink, short dbrType, void *pbuffer) |
DBCORE_API long | dbLoadLinkArray (struct link *, short dbrType, void *pbuffer, long *pnRequest) |
DBCORE_API long | dbGetNelements (const struct link *plink, long *pnElements) |
DBCORE_API int | dbIsLinkConnected (const struct link *plink) |
DBCORE_API int | dbGetLinkDBFtype (const struct link *plink) |
DBCORE_API long | dbTryGetLink (struct link *, short dbrType, void *pbuffer, long *nRequest) |
DBCORE_API long | dbGetLink (struct link *, short dbrType, void *pbuffer, long *options, long *nRequest) |
DBCORE_API long | dbGetControlLimits (const struct link *plink, double *low, double *high) |
DBCORE_API long | dbGetGraphicLimits (const struct link *plink, double *low, double *high) |
DBCORE_API long | dbGetAlarmLimits (const struct link *plink, double *lolo, double *low, double *high, double *hihi) |
DBCORE_API long | dbGetPrecision (const struct link *plink, short *precision) |
DBCORE_API long | dbGetUnits (const struct link *plink, char *units, int unitsSize) |
DBCORE_API long | dbGetAlarm (const struct link *plink, epicsEnum16 *status, epicsEnum16 *severity) |
DBCORE_API long | dbGetAlarmMsg (const struct link *plink, epicsEnum16 *status, epicsEnum16 *severity, char *msgbuf, size_t msgbuflen) |
DBCORE_API long | dbGetTimeStamp (const struct link *plink, epicsTimeStamp *pstamp) |
DBCORE_API long | dbGetTimeStampTag (const struct link *plink, epicsTimeStamp *pstamp, epicsUTag *ptag) |
DBCORE_API long | dbPutLink (struct link *plink, short dbrType, const void *pbuffer, long nRequest) |
DBCORE_API void | dbLinkAsyncComplete (struct link *plink) |
DBCORE_API long | dbPutLinkAsync (struct link *plink, short dbrType, const void *pbuffer, long nRequest) |
DBCORE_API void | dbScanFwdLink (struct link *plink) |
DBCORE_API long | dbLinkDoLocked (struct link *plink, dbLinkUserCallback rtn, void *priv) |
DBCORE_API long | dbLoadLinkLS (struct link *plink, char *pbuffer, epicsUInt32 size, epicsUInt32 *plen) |
DBCORE_API long | dbGetLinkLS (struct link *plink, char *pbuffer, epicsUInt32 buffer_size, epicsUInt32 *plen) |
DBCORE_API long | dbPutLinkLS (struct link *plink, char *pbuffer, epicsUInt32 len) |
Link support run-time API, all link types provide an lset which is used by the IOC database to control and operate the link. This file also declares the dbLink routines that IOC, record and device code can call to perform link operations.
Definition in file dbLink.h.
typedef long(* dbLinkUserCallback)(struct link *plink, void *priv) |
Called by the lset::doLocked method to permit multiple link operations while the link instance is locked.
plink | the link |
priv | context for the callback routine |
DBCORE_API long dbGetAlarmMsg | ( | const struct link * | plink, |
epicsEnum16 * | status, | ||
epicsEnum16 * | severity, | ||
char * | msgbuf, | ||
size_t | msgbuflen | ||
) |
Get link alarm and message string. To ensure the complete message string is copied, ensure
. A trailing nil will be added whenever
.
DBCORE_API long dbGetTimeStampTag | ( | const struct link * | plink, |
epicsTimeStamp * | pstamp, | ||
epicsUTag * | ptag | ||
) |