Experimental Physics and
Industrial Control System

huangsong <[email protected]> · Tue, 14 Jun 2005 14:40:24 +0800

Hello, everyone

I'm now programming using channel access client library. By CA Monitor, we can get the
event messages after we use ca_add_masked_array_event() to register on some PVs.

If there are some events triggered, we get messages which include things like:
channel name
pv values
status

But in the messages, I can't get the exact IOC time when it trigger the event. 
The event_handler_args defined like this in cadef.h:

typedef struct  event_handler_args{
        void            *usr;   /* User argument supplied when event added      */
        struct channel_in_use
                        *chid;  /* Channel id                                   */
        long            type;   /* the type of the value returned               */
        long            count;  /* the element count of the item returned       */
        READONLY void   *dbr;   /* Pointer to the value returned                */
        int             status; /* ECA_XXX Status of the requested op from server       */
}evargs;

Is there any parameter including the exect time on IOC when the event triggered?
I hope it should not be the responsibility of Event Handler routines.

Best wishes and regards,
Huang song
IHEP

                                         [email protected]
					 2005.06.06

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System