Date: Fri, 23 Nov 2012 11:17:07 -0800 From: Alfred Perlstein <bright@mu.org> To: Oleksandr Tymoshenko <gonzo@bluezbox.com> Cc: arch@freebsd.org Subject: Re: [RFC] sema_wait_sig Message-ID: <50AFCBB3.9060708@mu.org> In-Reply-To: <E5FE70A7-D2D2-4021-950B-48FD84F11F08@bluezbox.com> References: <E5FE70A7-D2D2-4021-950B-48FD84F11F08@bluezbox.com>
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On 11/22/12 10:12 PM, Oleksandr Tymoshenko wrote: > Hello, > > Is there any particular reason FreeBSD does not have sema_wait_sig > function? It seems to be easily implementable using cv_wait_sig > function. > > The reason I'm asking is that I'm getting some Linux drivers > ported to FreeBSD and the code in question relies on semaphores > and there is no obvious alternative to down_interruptible function. > I realize that not all approaches to driver development are easily > mappable from OS to OS but in this case lack of cv_wait_sig seems > like gap in API. Unless of course there is strong rationale behind it. > Sounds like just an oversight. Go for it! -Alfred
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