Some senseless babbling from Mario Semo to Ivan Todoroski
on 04 Dec 98  10:05:04 about Guess who's back... ;)...

 MS> Hallo IVAN!

 MS> Antwort auf eine Message von IVAN TODOROSKI an MARIO SEMO:
 
 IT>   Also, Process Commander does NOT do "who knows what".
The way it  
 IT> changes other process' priority is totaly documented and supported by  
 IT> the OS/2 API. It is a simple DosSetPriority() call. Don't see

 MS> wasn't it PC who added a second thread to EACH application in the
 MS> system? or something else added to the system with WARP4. at least
 MS> every and each app in the system has (under WARP4) one thread more then
 MS> under WARP3.  i name this "do who knowns what". 
 MS> ( as i reember it was the application which was previously (under OS2
 MS> 3.x) called WatchCat. isnt this PC today?).

 MS> and WHAT threads are changed when PC calls DosSetPriority? my App has
 MS> 16 threads. each with different priorities. some idle, some TC. 

DosSetPriority() has two scope parameters.  The first one specifies whether 
the call is to affect a thread, a process, or a process and all of its 
descendants.  The second gives the ID of the process/thread, depending on 
the setting of the first.  Using zero for the second parameter defaults to 
the current process/thread.

 IT>     Take any DOS assembler (even DEBUG will do) and create a simple    
 IT> program (.COM or .EXE, no matter) with this piece of code in it:
 
 IT>      cli
 IT>      x:
 IT>      jmp x
 
 IT>     Execute this in a DOS window.

 MS> mh. at moment not the time to test it (just in case), but as i
 MS> remember it doesnt crash my system with WARP4 as i tested it long ago.
 MS> But it DEFINITLY crash any OS2 2.x system. (simple because cli was not
 MS> virtualized and so really clears the interrupt enable). 

I don't think OS/2 2.x has the fast virtualization routines, but it will 
also crash any non-Intel processor, or early-step 486 or lesser Intel 
processors.

Unless, of course, the machine has a watchdog timer.

And as you said in the snipped portion, it's not a priority issue.

Mike Ruskai
thanny{at}home.com


... Never underestimate the power of human stupidity.
--- Renegade v05-11 Exp