I do a variation on this -- since my phantoms now need to be 'multi-account' (that is, 6 accounts, I need 6 phantoms - one per account) -- I do a READU of an 'item' from a 'Paramters' file -- the "ItemID" I attempt to read is
"AcctName-PHANRUN" Don't care if it exists or not -- as long as the READU 'passes' -- if the LOCKED clause hits, I exit the 'startup'... I put this logic into a process I call during the LOGIN paragraph -- not flawless, in that people have to move in and out of the account, but for what I do, it works A-OK. This way, if another account needs to 'starts up' it can tell if the phantom for that account's data already has a phantom 'running' or not. Uses READU so that regardless of how the phantom dies, the lock goes with it. And more flexible than the "LOCK 60" type of lock. DW -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Doug Sent: Friday, April 02, 2010 10:57 AM To: 'U2 Users List' Subject: Re: [U2] UD: Phantoms Bill: Use the LOCK command with number 0 through 63. Have your phantom process do a "LOCK 60". Then you can test it in other programs using the else clause: LOCK 60 THEN UNLOCK 60 * Restart phantom END ELSE * Phantom is running do nothing END -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Haskett Sent: Friday, April 02, 2010 9:25 AM To: U2 Mail List Subject: [U2] UD: Phantoms In UniData, does anyone know of a sure way to determine if a BASIC program is running as a phantom? We have a background service program in our application that has to be running as a phantom whenever UniData starts. The ability to start something when the dbms starts doesn't exist in UniData, so I have to schedule the task when Windows starts. However, if the program stops (or UD was stopped and restarted) I have no sure way to know if it's running. Does UD have any way to know this? Thanks, Bill Haskett _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users
