Date: Tue, 28 Jul 2015 18:31:22 +0100 From: David Chisnall <theraven@FreeBSD.org> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: Luigi Rizzo <rizzo@iet.unipi.it>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: eventfd lookalike in FreeBSD ? Message-ID: <74DCC090-6AA7-43B8-81A1-DF66BC357489@FreeBSD.org> In-Reply-To: <CAJ-VmoniGM2wv01zn_%2B%2BF-fLOq4mZ5FFTZRX_dYLww51Aq-iJQ@mail.gmail.com> References: <20150728121949.GA64588@onelab2.iet.unipi.it> <CAJ-VmoniGM2wv01zn_%2B%2BF-fLOq4mZ5FFTZRX_dYLww51Aq-iJQ@mail.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
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