From:	"Paolo Gava" <pgava AT etrone DOT com DOT au>
Newsgroups:	comp.os.msdos.djgpp
Subject:	What I have to lock?
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Date:	Tue, 19 Oct 1999 21:31:08 +1000
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Hi,

I have some problem to understand what data and function lock in my
application.
I wrote a multi-thread application (under windows98 and djgpp V2.02) in
which, with a timer, every 10ms I do a context switch and wake up an other
thread (if there is one).
Every thread has its own stack, the context_switch is write in assembler and
what it does is to save all the register of the thread that will be
interrupted and restore the register of the thread that must go in
execution.

My question is: do I have to lock stack and all the code that the thread
call? (This means lock everything) or I can do something better?

If I have to lock everything, I have to consider the possibility to disable
virtual memory to make sure my program doesn't page, how bad is it?

Thanks in advance for your help,
Paolo

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