From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: Ralph Corderoy <ralph@inputplus.demon.co.uk>
Message-ID: <a2q32a$th4$1@inputplus.demon.co.uk>
References: <20020116034426.F0943199EE@mail.cse.psu.edu>
Subject: Re: [9fans] semaphores
Date: Fri, 25 Jan 2002 10:30:03 +0000
Topicbox-Message-UUID: 45356b06-eaca-11e9-9e20-41e7f4b1d025

Hi Russ,

> I figured I'd toss them out for others and to see if anyone noticed
> any problems.
> ...
> typedef struct Sema Sema;
> struct Semaphore {
>       QLock data;
>       QLock wait;
>       int n;
>       int need;
> };
>
> void
> incsema(Sema *s, int c)
> {
>       qlock(&s->data);

Should that be `typedef struct Semaphore Sema;' in order for s->data to
work?


Ralph.