Date: Sat, 12 Dec 2009 00:25:54 -0500 From: Garrett Wollman <wollman@bimajority.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r200274 - head/lib/libc/gen Message-ID: <19235.10594.497521.83037@hergotha.csail.mit.edu> In-Reply-To: <alpine.BSF.2.00.0912100023220.23303@fledge.watson.org> References: <200912082048.nB8Km6aP099420@svn.freebsd.org> <200912081645.37356.jhb@freebsd.org> <20091208221028.GA57735@stack.nl> <200912081742.58162.jhb@freebsd.org> <4B1FAC12.6080907@cs.duke.edu> <alpine.BSF.2.00.0912100023220.23303@fledge.watson.org>
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<<On Thu, 10 Dec 2009 00:24:28 +0000 (GMT), Robert Watson <rwatson@FreeBSD.org> said: > It's beginning to sound like our POSIX semaphores should be behaving more like > umtx, which requires only a shared page, and less like file descriptors. Of > course, that would make the global namespace more tricky... Ultimately, the problem is that "POSIX semaphores" are actually three different kinds of object, which just happen to ostensibly use the same programming interface. -GAWollman
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