December 2005 - Darwin-kernel

filesystem notifications (to userland)
by Marek Kozubal 02 Dec '05

02 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hello! Thanks in advance. -Marek _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… So I have a filesystem that can be changed from external sources (the actual data for the file system is supplied from a userland daemon simular to webdav). So entire directory trees can be created and removed behind the kernels back. So my question is, is there a need and/or way to let things like spotlight, kqueues, and etc. get notified from my kext? When a new directory tree gets added, it would be nice if things like spotlight can be made to notice and start cataloging those files. This email sent to site_archiver(a)lists.apple.com

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vgone/vclean replacement?
by Marek Kozubal 02 Dec '05

02 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thanks in advance! -Marek _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… So I have a need to just force kill a bunch of my vnodes within my file system. In the past I just called vgone() on the vnode, which would force close if open, clean up and recycle the vnode. However in Tiger, vgone() and vclean() are now a hidden functions. So whats the best way now, to force kill a vnode? I've gone though the xnu sources about 20 times now, and it seems the things that eventually call vgone & vclean check for the various counts to be certain values, not good when you want the thing to die reguardless. >From my research it seems some combination of vnode_recycle, vnode_put, and forcing my vnodes close if my own open count is not 0. But I'm wondering if there's a better way that I'm missing. This email sent to site_archiver(a)lists.apple.com

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Re: events related to cron
by Graham J Lee 01 Dec '05

01 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 1 Dec 2005, at 12:27, Amol Gajewar wrote: i wanted to know that anyhow my application can come to know what is the result of job performed by crontab. Cheers, Graham. -- Graham Lee GPG Key ID: 01D5B9D8 UNIX Systems Manager, Oxford Physics Practical Course http://nextstep.sdf-eu.org 01865 273450 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… have your cron job output $? of your interesting task to a logfile/ named FIFO/whatever then have your app check that logfile/named FIFO/ whatever. This email sent to site_archiver(a)lists.apple.com

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RE: events related to cron
by Amol Gajewar 01 Dec '05

01 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Importance: Normal i wanted to know that anyhow my application can come to know what is the result of job performed by crontab. -----Original Message----- From: William Kucharski [mailto:kucharsk@mac.com] Sent: Thursday, December 01, 2005 5:06 PM To: Amol Gajewar Cc: darwin-kernel(a)lists.apple.com Subject: Re: events related to cron On Dec 1, 2005, at 3:33 AM, Amol Gajewar wrote: > I want to know whether any event is generated when cron performs > scheduled job. > I know it mails to the user but apart from that any thing else it > does. > Any pointers on this will be helpful. Not by default. In fact, email is only generated if there is output from the process cron runs and stdout/stderr haven't been redirected. William Kucharski kucharsk(a)mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: events related to cron
by William Kucharski 01 Dec '05

01 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Dec 1, 2005, at 3:33 AM, Amol Gajewar wrote: Not by default. William Kucharski kucharsk(a)mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… I want to know whether any event is generated when cron performs scheduled job. I know it mails to the user but apart from that any thing else it does. Any pointers on this will be helpful. In fact, email is only generated if there is output from the process cron runs and stdout/stderr haven't been redirected. This email sent to site_archiver(a)lists.apple.com

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events related to cron
by Amol Gajewar 01 Dec '05

01 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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