From owner-freebsd-hackers  Mon Aug 30  9: 8:46 1999
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Date: Mon, 30 Aug 1999 17:09:19 +0000
From: Francis Jordan <frankrj@netscape.net>
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To: Marcel Moolenaar <marcel@scc.nl>
Cc: hackers@FreeBSD.ORG
Subject: Re: More than 32 signals. Thought?
References: <37CA7B24.EC8539C4@scc.nl>
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Marcel Moolenaar wrote:
> 
> [cc'd to David E. Cross (crossd@cs.rpi.edu) and James Raynard
> (jraynard@freebsd.org)]
> 
> I'm thinking about extending the number of signals. I like your thoughts
> and opinions.
> 
> Basicly what I'm going to do is rewrite the signalling code to use a new
> sigset_t and provide new syscalls to use it. The current syscalls convert
> between the current and the new types for compatibility. I think I'm going
> to borrow a thought or two from Linux which allows further increasing of
> the number of signals without rewriting the logic, but that's basicly
> undecided yet and open for discussion.


Do as NetBSD does to remain compatible?  Or borrow a few thoughts from
Solaris, which also has 128 signals:

typedef struct {                /* signal set type */
        unsigned long   __sigbits[4];
} sigset_t;

Frank


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