RE: Multithreading (was 'more good iseries news')

["Bob Crothers" <Bob2@xxxxxxxxxxxxxx>]

James,

Argreed.  But even more important than actually creating and destroying
the thread, are the thread synchronization objects such as Critical
Sections, Events and Mutex's.

Without these, you WILL corrupt data.  The only question is when.

Bob

-----Original Message-----
From: midrange-l-admin@midrange.com
[mailto:midrange-l-admin@midrange.com]On Behalf Of James Rich
Sent: Monday, January 14, 2002 4:06 PM
To: midrange-l@midrange.com
Subject: Re: Multithreading (was 'more good iseries news')

On Mon, 14 Jan 2002, Andy Nolen-Parkhouse wrote:

> A standard, single-threaded program will not take advantage of more
than
> one processor.  This would include the standard RPG/COBOL interactive
> and batch programs found in most older systems.  Multi-threaded
> applications should be able to take advantage of multiple processors,
> although I'm a little over my head here as to specifics.  I don't
know
> whether the HTTP server supports multiple threads.

I'm unsure of the capabilities of *new* RPG programs to take advantage
of
multi-threading.  Multi-threaded apps have ops such as thread_create(),
thread_lock(), thread_destroy(), etc. (or some variation).  RPG doesn't
have these ops as far as I know.  Perhaps the compiler can do some
fancy
magic to enable threading but it seems unlikely.

James Rich
james@eaerich.com

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