Re: SVC99 and MPF Exits
> > 2.9.4.2 Macro Instructions and Restrictions > > IEAVMXIT and MPF exit routines can issue system macros, but you should be > aware of the following restrictions: > > a.. Do not install an exit routine that issues the WAIT macro or calls a > service that issues a WAIT. WAITs and implied WAITs can terminate console > communications. Allocation certainly falls into one of those potential black-hole categories that would violate the intent of the above warning. But even if it did not, you would have to consider the state of the work that is being interrupted by the exit. It is a bad idea in general to introduce new allocations to any address space without really understanding the environment where you're running. You can royally hose things up without even trying. If you do find yourself needing to do out of band I/O from an exit then you probably need to set up some sort of server space to take care of that for you. Aside from anything else, the avoidance of dynamic allocation would make the whole thing run a whole lot faster and your recovery considerations would be much easier to deal with. CC -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: SVC99 and MPF Exits
2.9.4.2 Macro Instructions and Restrictions IEAVMXIT and MPF exit routines can issue system macros, but you should be aware of the following restrictions: a.. Do not install an exit routine that issues the WAIT macro or calls a service that issues a WAIT. WAITs and implied WAITs can terminate console communications. - Original Message - From: "Rich Tabor" <[EMAIL PROTECTED]> Newsgroups: bit.listserv.ibm-main To: Sent: Tuesday, March 13, 2007 3:56 PM Subject: SVC99 and MPF Exits Any restrictions for using dynamic allocation in an MFS user exit? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
SVC99 and MPF exits
Any restrictions for using dynamic allocation (SVC99)in MPF exits? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
SVC99 and MPF Exits
Any restrictions for using dynamic allocation in an MFS user exit? -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
