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Subject: Re: eventfd lookalike in FreeBSD ?
From: David Chisnall <theraven@FreeBSD.org>
In-Reply-To: <CAJ-VmoniGM2wv01zn_++F-fLOq4mZ5FFTZRX_dYLww51Aq-iJQ@mail.gmail.com>
Date: Tue, 28 Jul 2015 18:31:22 +0100
Cc: Luigi Rizzo <rizzo@iet.unipi.it>,
 freebsd-current <freebsd-current@freebsd.org>
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To: Adrian Chadd <adrian.chadd@gmail.com>
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On 28 Jul 2015, at 18:23, Adrian Chadd <adrian.chadd@gmail.com> wrote:
>=20
> (What would be nice is having kqueue know about conditionals, so we
> can sleep on a cond as well as a kqueue fd+queue, but I can't have
> everything I want..)

I recently came across a need to do something like this.  Being able to =
add condvar / mutex pairs to a kqueue and wait on a set of condition =
variables, reacquiring the mutexes for any of the signalled ones, as =
well as waiting for kernel events would be very useful.

David