> Implementing overlapped I/O is what QSAM does. Only if you let it. If you code BUFNO=1, the only overlap is what the DASD subsystem does under the covers.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Charles Mills [[email protected]] Sent: Sunday, March 21, 2021 6:40 PM To: [email protected] Subject: Re: Overlapped I/O completion Implementing overlapped I/O is what QSAM does. You don't even need to code BUFNO. IMHO it is one of the two main points of QSAM, the other being blocking and de-blocking. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
