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From Igor Tatarinov <>
Subject Re: Want to add file caching to Apache
Date Thu, 20 Nov 1997 17:15:31 GMT
Charles Randall wrote:
> Would it be prudent to create an abstract Apache-API to shared memory
> and semaphores before starting this work?
> Charles Randall

Yes, I was going to do that at some point. Unfortunately, this assumes going
down to the assembly language (the compare&swap instruction is not visible
otherwise). I've found that Linux has a macro xchg() that should help on any
486/gcc based system. Not sure about other platforms/compilers; they may not
like assembler stuff at all.


Igor Tatarinov, graduate student, Computer Science Dept, NDSU
e-mail:   or

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