On Sun, 19 Jun 2022 21:21:28 +0200, Bernd Oppolzer wrote: >I don't code DISP=MOD, if I want to append data to an existing dataset; >instead I use fopen with an "a" in the mode parameter. > I wonder how the runtime handles that. I suppose it could POINT to DS1LSTAR.
>My files have RECFM=FB, not FBS. > So irregular length blocks would be permissible. But fileno() doesn't work, and streams aren't inherited on fork(). >See: if I don't use the DD:xxx method the fopen the files, >that is, if I specify DS-names on the fopen, the C runtime even does the >allocation for me >(SVC 99, IIRC), so that I even don't need a JCL allocation for the file. > How does that runtime handle ENQ conflicts? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
