Michael Knigge wrote:
All,
we are currently doing our first steps with C on z/OS (MVS Environment).
Now,.... everything is somewhat different than under UNIX or Windows.
For example the call of "fork()" is somewhat strange. In my
multithreaded application I can't use fork. I can't use subtasks if I
use threads. fork() somehow works, but I can't see the SYSOUT/SYSPRINT
of the forked process.
The manual is somehow confusing - .... for me.
Now, I guess everything would become clearer if I would know exactly all
the magic of address spaces, processes, thraeds, tasks, subtasks and so
on. For example, just a few minutes ago I've read in an IBM manual that
there exist single-process address spaces and multiple-process address
spaces (never heard about that before). Now.... is is task a process? If
I use subtasks - do I use multiple-process address spaces? What is the
difference between a subtask and a thread? What is the difference
between a job and a started task?
So, there are many many questions I need/want to understand all this
stuff better.
Could someone tell me what IBM Manual would be a good choice to start?
I've tried POP (Principles of Operation) but this wasn't the right one...
This might help a little. We have some papers on our
website that are available for free, one of which is
an introduction to z/OS, LE, and z/OS UNIX. Go here:
http://www.trainersfriend.com/General_content/Book_site.htm
and select the first paper in the list. It should get
you started, anyway.
Hope it helps.
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
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Also, if you want to get comfortable with z/OS UNIX
in its peculiarities, consider our z/OS UNIX curriculum:
http://www.trainersfriend.com/UNIX_and_Web_courses/unixcurric.htm
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Thank you very much,
Michael
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