Where does MVS do this? Converter? Interpreter? Initiator? Does SVC 99 also do it, and under what TCB?
Ever notice a typo that you were tempted to leave uncorrected? "Coverter" -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Paul Gilmartin <[email protected]> Sent: Monday, April 13, 2020 4:21 PM To: [email protected] Subject: Re: Any shop use UNIX in a production job? On Mon, 13 Apr 2020 19:40:07 +0000, Seymour J Metz wrote: >Allocation doesn't do an OPEN. But why call an SVC 99 interface to allocate a >ddname that you plan to never OPEN? > >From the JCL Ref.: DD: PATHOPTS ... And if: • The file does not exist, Then MVS performs an open() function. The options from PATHOPTS, the pathname from the PATH parameter, and the options from PATHMODE (if specified) are used in the open(). MVS uses the close() function to close the file before the application program receives control. >From: Paul Gilmartin >Sent: Monday, April 13, 2020 3:27 PM > >I believe ALLOCATE PATH= causes momentary open() to validate, then >close() of PATH. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
