To: J3 J3/13-341 From: Bill Long Subject: Extensions to the EVENT facility Date: 2013 September 30 References: N1983, N1989 Discussion ---------- Request for the following was made on behalf of a user: 1) Add EVENT CLEAR ( ) statement. Use case: Event posts are used to "check in" to an event counter. The counter owner uses QUERY_EVENT to determine when everyone has checked in, but never does an actual EVENT WAIT. When the count indicating "completion" is achieved, the image processes the (now complete) set of data and the count is reset to zero using EVENT CLEAR ( ). This offers significantly better performance compared to executing a loop of EVENT WAIT statements to wind down the count. 2) Add an optional COUNT= to EVENT POST to return the count value after the post completed. Can be used to provide slot numbers in an array where the poster can deposit values into the target image. Edits to N1983: --------------- (TBD)