Date: Tue, 14 Nov 2000 23:03:20 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Mike Smith <msmith@FreeBSD.org> Cc: John Baldwin <jhb@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/sys eventhandler.h Message-ID: <200011150403.XAA67532@khavrinen.lcs.mit.edu> In-Reply-To: <200011150325.eAF3PRF01212@mass.osd.bsdi.com> References: <200011141823.KAA89218@freefall.freebsd.org> <200011150325.eAF3PRF01212@mass.osd.bsdi.com>
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<<On Tue, 14 Nov 2000 19:25:27 -0800, Mike Smith <msmith@FreeBSD.org> said: > If you want to release the lock on the list, you would have to detect > when the list is changed and rescan it to find the 'new' current > location. Only that doesn't work either, since the list traversal allows > you to remove the current handler from the list. Not necessarily. You can do it by maintaining two queues, and deferring deletion (using a flag bit in the queue element). I'm fairly certain it's possible to do a completely non-blocking traversal of such a queue. -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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