long task and its program

william.kangweiliang · New User Joined: 26 Sep 2008 Posts: 22 Location: China

Dear all,

I have some question about long task in CICS and it's bind program.

1) what's the working flow between long task and its pgm?
EG: The task will be startup when the cics is started. and Its pgm is invoked as well. then when the pgm go to a return CICS command. What will happen? the task will be invoked once more and the program will go from the top again? or something else?

2)what's the time will be remarked on the prgram's use parameter ('Use(0000000643)')? once or the actual time the program runs?

thx a lot!

Garry Carroll · Posted: Mon Oct 12, 2009 4:35 pm

A task will start at CICS startup if that's what's specified in a PLTPI program. Otherwise it can be started by a variety of means - Terminal Input, via DCT triggering, MQ triggering, etc.

When EXEC CICS RETURN is executed, the task ends. At this point, program Use is 1. This is a use counter, not a timestamp. It counts the number of times the program has been used.

Something else must happen to start another instance of the task. Each new instance of the task will increment the program Use (counter) by 1 and will 'start from the top'.

Garry.