Date: Thu, 27 Dec 2001 14:14:12 -0600 From: Alfred Perlstein <bright@mu.org> To: Julian Elischer <julian@elischer.org> Cc: Mike Smith <msmith@freebsd.org>, arch@freebsd.org Subject: Re: the condvar stuff. Message-ID: <20011227141412.G55891@elvis.mu.org> In-Reply-To: <Pine.BSF.4.21.0112271135510.84622-100000@InterJet.elischer.org>; from julian@elischer.org on Thu, Dec 27, 2001 at 11:43:29AM -0800 References: <200112271943.fBRJh0F01276@mass.dis.org> <Pine.BSF.4.21.0112271135510.84622-100000@InterJet.elischer.org>
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* Julian Elischer <julian@elischer.org> [011227 14:00] wrote: > so, is there such a thing in > pthread condvars as an uncancellable condvar? > > > On Thu, 27 Dec 2001, Mike Smith wrote: > > No, they are condition variables. > > > > They exist to provide a mechanism that is familiar to a large number of > > thread programmers, and which has a good body of related algorithms > > already established. > > > > They directly parallel the condition variables found in the pthread > > library, again keeping the kernel and userland programming metaphors as > > close as is practical. > > I don't know how good an idea this is.. > we are getting VERY kitchen-sinky in the kernel. Can I have a C++ > allocator too? > > enumerate: > mem allocators: mbuf/malloc/zalloc/kvalloc-etal/bus-space-alloc I hope to finish my slab allocator in the next couple of months this should collapse malloc and zalloc into a single subsystem. > synchronisation: primatives CV/msleep/mtx/sx/lockmanager(gone?) Eventually we will be able to get rid of msleep. > thread schemes: (aio/kthreads/linux-thread-support/KSE) > etc :-) Hopefully KSE will be flexible enough to implement aio, kthreads and linux-threads with a small wrapper, right? :) -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' Tax deductable donations for FreeBSD: http://www.freebsdfoundation.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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