On Wed, 8 Jan 2014 12:28:13 -0600, John McKown wrote: >One possibility is to use POSIX threading instead of ATTACH. POSIX threads >all run in the same address space. And are actually implemented via TCBs. >But there is no parent/child relationship between a thread and a separate >thread which a given thread creates. The only special thread is the initial >thread (called the IPT ). When it "dies", then all the POSIX threads die. >This is because that thread actually does all the ATTACHes. It is similar >to how PL/I did it's multitasking. > It's interesting that you refer to PL/I in the past tense. But that may be a matter more of your personal history than of PL/I's.
And, each thread could do its own I/O securely. Almost. There's still the problem of DDNAME contention. Damn! it would be so nice if ATTACH handled alternate DDNAME assignment rather than leaving it to the various utilities. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
