Article View: comp.sys.amiga.tech
Article #4352Re: Bug in AddSemaphore()!
From: Peter rb{k
Date: Thu, 12 Jul 1990 12:20
Date: Thu, 12 Jul 1990 12:20
50 lines
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1908 bytes
rosenber@ra.abo.fi (Robin Rosenberg INF) writes:
>!This may already be widely known, but here it is:
>!
>!I think, that I have found a bug in the AddSemaphore() routine in
>!exec.library.
>It is even documented!, with a workaround reading like this
Well, I don't have Includes & Autodocs 1.3, wish I had though!
>#include <exec/execbase.h>
>...
>AddSemaphore(s)
>struct SignalSemaphore *s
>{
> InitSemaphore(s);
> Forbid();
> Enqueue(&SysBase->SemaphoreList,s);
> Permit();
>}
Thanks, my workaround just doesn't add the semaphore to the list, that
works fine also, FindSemaphore() ,of course, won't find it then.
>[...]
>The (Lattice 5.05) #pragma for RemSemaphore was also incorrect. Apparently
>the stub in Amiga.lib is correct since things worked when I removed the
><proto/exec.h> include. It should read:
> #pragma syscall RemSemaphore 25e 801
>(I think it was 25e 901)
>Just encourage people to get the latest available docs. The RKM
>Includes&Autodocs for 1.3 has been available for quite a while now.
Ok! :->
>-----------
>Robin Rosenberg
- Peter (poe@daimi.dk)
--
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* "Who other than IBM would want to put a mainframe on *
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From: poe@daimi.dk (Peter rb{k)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Bug in AddSemaphore()!
Message-ID: <1990Jul12.122030.1809@daimi.dk>
Date: 12 Jul 90 12:20:30 GMT
References: <1990Jul9.185240.8666@daimi.dk> <ROSENBER.90Jul10174434@ra.abo.fi>
Sender: news@daimi.dk
Organization: DAIMI: Computer Science Department, Aarhus University, Denmark
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