Experimental Physics and
Industrial Control System

/*
 * Evaluate channel names by macro substitution.
 */
#define		MACRO_STR_LEN	(MAX_STRING_SIZE+1)
LOCAL void seqChanNameEval(pSP)
SPROG		*pSP;
{
	CHAN		*pDB;
	int		i;

	pDB = pSP->pChan;
	for (i = 0; i < pSP->numChans; i++, pDB++)
	{
		pDB->dbName = calloc(1, MACRO_STR_LEN);
		seqMacEval(pDB->dbAsName, pDB->dbName, MACRO_STR_LEN, pSP->pMacros);
#ifdef	DEBUG
		printf("seqChanNameEval: \"%s\" evaluated to \"%s\"\n",
			pDB->dbAsName, pDB->dbName);
#endif	/*DEBUG*/
	}
}

It might help to replace those uses of MAX_STRING_SIZE+1 with PVNAME_STRINGSZ.

Dirk



Dirk Zimoch wrote:

I tested the sequencer with a long name and it seems that it truncates the PV name to 41 chars.

A seqChanShow shows the difference between the name used in assign and the actual name used in CA:

Channel name: "DZ:45678901234567890123456789012345678901"

Unexpanded (assigned) name: "DZ:456789012345678901234567890123456789012345678901234567890"

Dirk



Mark Rivers wrote:

EPICS base defines the maximum length of the PV name to be PVNAME_STRINGSZ, which is currently 61 including the nil terminator. What length limitation does the sequencer impose? Is it more restrictive than this? Mark

________________________________

From: [email protected] on behalf of Patrick Thomas
Sent: Thu 9/3/2009 6:29 PM
To: [email protected]
Subject: sequencer feature request



Hi,

I was wondering if I could ask for a feature request for the next
version of the sequencer? Is there any chance that it would be possible
to use unlimited length record names in assign to statements?

Thank you,
Patrick

--
Dr. Dirk Zimoch
Paul Scherrer Institut, WBGB/006
5232 Villigen PSI, Switzerland
Phone +41 56 310 5182

Replies:

Re: sequencer feature request Eric Norum

References:

sequencer feature request Patrick Thomas

RE: sequencer feature request Mark Rivers

Re: sequencer feature request Dirk Zimoch

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