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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: Monitors on a stringin record |
| From: | [email protected] (Ralph Lange) |
| To: | [email protected] (Mark Rivers) |
| Cc: | [email protected] (EPICS Tech-Talk) |
| Date: | Fri, 11 Dec 1998 15:46:03 +0100 (MET) |
> I have a naive question here. I was under the impression that even if a > record requested that monitors be posted on a field which had not changed, > that channel access would not actually post the monitors if the values were > the same. Is this true? Generally yes. When a CA client opens a monitor connection, it immediately gets the current value in the response and it is added to a list in the record. During record processing the record checks for its value to have changed and (if it has changed) sends out "value change events" to all the clients in the list. Ralph Lange