Date: Sun, 12 Sep 1999 10:56:42 -0700 (PDT) From: John Polstra <jdp@polstra.com> To: wollman@khavrinen.lcs.mit.edu Cc: current@freebsd.org Subject: Re: An FS question perhaps... non blocking I/O. Message-ID: <199909121756.KAA38620@vashon.polstra.com> In-Reply-To: <199909091954.PAA13059@khavrinen.lcs.mit.edu> References: <Pine.BSF.4.05.9909092224510.15440-100000@pena.oh5nxo.ampr.org> <000601befafb$83fbb8c0$291c453f@kbyanc.alcnet.com> <199909091954.PAA13059@khavrinen.lcs.mit.edu>
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In article <199909091954.PAA13059@khavrinen.lcs.mit.edu>, Garrett Wollman <wollman@khavrinen.lcs.mit.edu> wrote: [POLLEXTEND, POLLATTRIB, POLLNLINK, POLLWRITE] > It is probably undocumented. I was a bit reluctant to document it > since I know that the interface is not correct. One of these days, > I (or more likely some enterprising young hacker) will fix it. Just to avoid duplicated effort: I currently have work in progress on a "fslog" pseudo-device. It enables you to monitor a filesystem and receive notifications for all interesting changes to files and directories. This includes reads, writes, renames, file creations, unlinks, links, etc. -- anything that changes the stat(2) results for a file, or causes directory entries to be created, destroyed, or changed. The device itself is working, but so far I have implemented the support for only a few of the event types. It won't take much more work to finish it. My personal interest is to allow a CVSup master server to avoid doing a tree walk whenever a client connects. I want to provide the functionality of the old "supscan" utility, but in real time. John -- John Polstra jdp@polstra.com John D. Polstra & Co., Inc. Seattle, Washington USA "No matter how cynical I get, I just can't keep up." -- Nora Ephron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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