March 2007 - Darwin-kernel - lists.apple.com

Re: xnu-792.18.15 source
by sci-fi＠hush.ai 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, On Thu, 15 Mar 2007 12:08:01 -0500 Michael Smith <drivers(a)mu.org> wrote: >On Mar 14, 2007, at 11:41 AM, Bhavesh Davda wrote: > >> When is Apple planning to release sources for the Mac OS 10.4.9 >> (xnu-792.18.15) update? > >When it's ready, I assume. > > = Mike Instead of just sittin’ & waitin’, I did something _useful_ (*ahem* ;) ) and sent the following feedback using the webform at <http://developer.apple.com/contact/>: >>>> Hi, I find myself once again submitting feedback because the sources for 10.4.9 have yet to be made available. I got the Kernel Debug Kits for 10.4.9 already, thank you for them. ;) I have already seen kernel panics due to the updated USB driver associated with screensaver and 23" HD Display. It looks nasty. Really wish you-all would make the whole developer pkgs ready before releasing a massive update like 10.4.9 is. Normally I must wait to apply the update until when the other pieces are ready, but this one seemed okay based on reading the responses at various websites, boy was I wrong again, should’ve learned & paid attention to my gut feelings…. Thank you. (yes this is a working e-mail addy & the basic ADC ID I use at connect.apple.com & elsewhere) <<<< …seems I am having to submit such feedback for every big update, else I feel they’ll never “git-r-dun”…! ;D p.s. I need the PPC sources please, this is on a Dual G5 2.7GHz w/ stock ATI 9650 etc. -----BEGIN PGP SIGNATURE----- Note: This signature can be verified at https://www.hushtools.com/verify Version: Hush 2.5 wkYEARECAAYFAkX5xGUACgkQZbt5KOxKrtSiNgCfbLRZiX6qjGjX5OBbkemkBTJtJxAA oKVV+vvdLsXq2hxMzibZiuriYIYo =uZdL -----END PGP SIGNATURE----- -- Are you safe? Click for free quote on home security system. Sale! http://tagline.hushmail.com/fc/CAaCXv1Vrkm9uWVIEGATWP7aHbX0m5et/ _______________________________________________ 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: pthreads cancellation
by Jean-Francois Roy 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 15, 2007, at 05:00, Colin Hirsch wrote: Hallo, Jean-François Roy -- Co-Founder of MacStorm /dev/klog. You better pipe that through your mind. http://www.devklog.net http://www.macstorm.org bahamut(a)macstorm.org http://www.devklog.net/documents/Jean-Francois_Roy.gpgkey Fingerprint: 06CD 6F7B 4BF0 2AC6 78B2 57A3 06BE 6CB3 0591 FA2D _______________________________________________ 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 I am not a kernel developer, but there's my understanding of the situation. In Mac OS X 10.4 (Tiger), the only automatic cancellation points available are on pthread_cond_wait, pthread_cond_timedwait, pthread_join, exit and of course when using pthread_testcancel. http://developer.apple.com/macosx/multithreadedprogramming.html has some more details. In Mac OS X 10.5 (Leopard), all mandatory cancellation points in UNIX '03 should be available since Apple plans on submitting Leopard for UNIX '03 certification (http://developer.apple.com/leopard/overview/) is there any documentation on the current status of pthreads cancellation? (I read the man page and searched the developer documentation, but they all seem to be out of date: none of them includes the _APPLE_C_SOURCE define that was mentioned in an earlier thread on this subject; can I assume that it makes all Posix mandated cancellation points work? I tested with poll(), and that was ok; it would however be nice to have a "more complete" man page...) Regards, Colin Hirsch _______________________________________________ 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/bahamut% 40macstorm.org This email sent to bahamut(a)macstorm.org PGP.sig

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Re: kern_control KPI and socket reads
by Bhavesh Davda 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Eqys5hghwGI4+lFY5/mBAnqsd4dzdlg4n7rIvLhLAWkIO8zG/ynStdqRiJULTQTcOlvX5cVT+BTrC7LwVMaIyi/Ot7zOB8UIVY59Aq/BNqSWfLxIhR8if0rcC/4bajGj/KtvRNHK7+JGLJCCJP+VNlYrqZ78lBC3rdUM+3TZmNA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=aF+ITR3pZIxfYZS3JhfOCAwOwJsImyMl/YYsSaIHd2FE6oRO5OvayVqqIekcjsPvwT/8gMmwdIuu7OKJML3Ed/lthfaNO/3rC6JSqrPEypyz4mVk3ApUtzMOLZyvAV+cEAPzpX/ReBN5sXaUfFm/fCZUgcXbM0Our733P0hrIQs= On Mar 15, 2007, at 10:14 AM, Bhavesh Davda wrote: > Yeah, I was trying to avoid having 2 system calls for every read(2): a > read(2) and an ioctl(2)/setsockopt(2), to get this functionality. What "functionality" are you actually trying to achieve? There are control flow models available for most reasonable behaviours already; it feels like you have decided on one that history has so far rejected... All I would like is the ability to run some code in my NKE when the queue that I was sending mbufs to via ctl_enqueuembuf() has been drained. Now one could argue that this "code" doesn't have to be in the NKE and why doesn't the user app doing the read(2) run this code when read returns EAGAIN. Just suffice it to say that what I'm doing is fairly specialized and I don't know of a historical precedent that fits the pattern. That's why I tried to boil down the question to a simple one. Thanks! -- Bhavesh P. Davda _______________________________________________ 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.… On 3/15/07, Michael Smith <drivers(a)mu.org> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: kern_control KPI and socket reads
by Michael Smith 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 15, 2007, at 10:14 AM, Bhavesh Davda wrote: Yeah, I was trying to avoid having 2 system calls for every read(2): a read(2) and an ioctl(2)/setsockopt(2), to get this functionality. What "functionality" are you actually trying to achieve? = Mike _______________________________________________ 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.… There are control flow models available for most reasonable behaviours already; it feels like you have decided on one that history has so far rejected... This email sent to site_archiver(a)lists.apple.com

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Re: kern_control KPI and socket reads
by Bhavesh Davda 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=gTvxrdrUV4pkLiA8aSrcDjTt6jAAKJ80LQw2mLHjWIbyQ9KhkVbIhxxBtFuiJ8VK+9GwECnau2dLKlEwWTllibb1xYbY3wU9YotuaVX+0JXAGtLmdXDJGx37RlJQsxUyeKyk5RqdMZWdZ7gwJYOpImOWeskxrUwXkTQ1m0GCx34= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Ty82EjK9lS7SjCLTzO63ptgz0SQmo8WDhe+MklklL3oImoLn6UNWKhV1Ju457uw1Uin9VmRjh1MPjzuy2TfcZZvQoDtj0jveEP0JI+EQJca1iAa3kiL4AZwzNOePQe49KVZbiqiH/G5cB0YC0hn8x7/jGO1S54qXf2M/xQjRfW0= On Mar 14, 2007, at 4:22 PM, Bhavesh Davda wrote: > I know that the kern_control API doesn't provide a callback for reads > on the sockets that it internally uses, after a call to > ctl_enqueuembuf(). > > But how would I go about implementing something that gets called on a > read/recv from my kern_control socket? You wouldn't, as this entirely defeats the point of having a decoupled reader/writer model. There are plenty of synchronous user/kernel interfaces (socket ioctl in your case, perhaps). Or, since the control socket protocol is entirely under your control, you could require the reader to write an 'ack' packet. Yeah, I was trying to avoid having 2 system calls for every read(2): a read(2) and an ioctl(2)/setsockopt(2), to get this functionality. Alternatively, I was wondering how many people would throw up at the idea of using a getsockopt(2) to read(2) data out of the kern_control socket :-). I'm not even sure I can do that, because the kern_control KPI doesn't expose a way to "dequeue" from the underlying socket, or even to get to the underlying socket for that matter. Thanks -- Bhavesh P. Davda _______________________________________________ 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.… On 3/15/07, Michael Smith <drivers(a)mu.org> wrote: = Mike This email sent to site_archiver(a)lists.apple.com

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Re: xnu-792.18.15 source
by Michael Smith 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 14, 2007, at 11:41 AM, Bhavesh Davda wrote: When is Apple planning to release sources for the Mac OS 10.4.9 (xnu-792.18.15) update? When it's ready, I assume. = Mike _______________________________________________ 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: kern_control KPI and socket reads
by Michael Smith 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 14, 2007, at 4:22 PM, Bhavesh Davda wrote: I know that the kern_control API doesn't provide a callback for reads on the sockets that it internally uses, after a call to ctl_enqueuembuf(). But how would I go about implementing something that gets called on a read/recv from my kern_control socket? = Mike _______________________________________________ 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.… You wouldn't, as this entirely defeats the point of having a decoupled reader/writer model. There are plenty of synchronous user/kernel interfaces (socket ioctl in your case, perhaps). Or, since the control socket protocol is entirely under your control, you could require the reader to write an 'ack' packet. This email sent to site_archiver(a)lists.apple.com

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Re: Regarding Hostname of Router!!
by Michael Smith 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 15, 2007, at 2:34 AM, subodh singh wrote: I want to retrieve hostname of router by using POSIX api. I have already achieved it by command arp, but it creates problem when DNS is configured on the machine and at that time it showing multiple entries. In that case its really difficult to recognise hostname of router. = Mike _______________________________________________ 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.… If the router has multiple names, it has multiple names and that's all there is to it. arp is not the right way to go, though. Have a look at the 'route' command, and in particular examine the codepath associated with the command 'route get default'. This email sent to site_archiver(a)lists.apple.com

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Re: kern_control KPI and socket reads
by Bhavesh Davda 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=YLtbb1MmpOLjwTCWMaTgiTlbggR6+4gyC5qj41RyB1YGx61EJJdaWKfQYxlPX7kQy376NCYdKd9YmqLo1q2RTU33Qjkgz2uCps8OeGHyftoGKrVKayGa1dn7gbqidNZuB79XkM+z4MHEmWn4AAZoK5baMR281xS8+pCfrZ64IgA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=FYymsw/cdBWSTMR5F2HQqbk8vDRmu7SOmb3/5SfMvRWXLVr4FgI+ipzNxwrdMw8uUifiTQK9tlBocYaskkAC3I0q3xKErLDqYEpZ6Y9+nql4jMkC1hbEcRmO0dg6a/pMZlQbvUu/9hJHQtQQQT+ugd8Q6flVDj5hN+YDcqRBIgI= On Mar 14, 2007, at 4:22 PM, Bhavesh Davda wrote: > I know that the kern_control API doesn't provide a callback for reads > on the sockets that it internally uses, after a call to > ctl_enqueuembuf(). > > But how would I go about implementing something that gets called on a > read/recv from my kern_control socket? The ctl_send_func that you specified when registering the control should get called when the client sends data to the kext. Yes, I was looking for something that gets called when an application does a read/recv on the kern_control socket. Thanks -- Bhavesh P. Davda _______________________________________________ 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.… On 3/14/07, Kevin Brock <apple(a)kevin.com> wrote: Or were you looking for something else? This email sent to site_archiver(a)lists.apple.com

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Regarding Hostname of Router!!
by subodh singh 15 Mar '07

15 Mar '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Q4lQy9p/WL+Ln0LV3prjWZePz7/OTMpq9C22Hr/2TqU+PqrmxFMUEtccQFa7y1b5czjcqQ0c3senEYjo4y9XBv1IZRAPDSdBjiKIMMjm4+ZOiWsNtGMPIdOmO4IHAcbkB8gXOld3IClHlAeoQImqBcXZ/zBKGOKAbim92aVdjhY= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=kBnoFoFlileghVF3g4AbCwOAlMgHo3rI+9iU2D53WfT0yGswVzUmpnkabicORU9Pkd/f5ooYgjAiA6OeASoLAek6HSifWiUmyi4AxD/rYw2A+lpKcIHyPlR5X9cGyIfiXwt9finDsWHl6CH/oGwR/W/0HusuM87tuWgjoFw0OTE= Hello Guys, I want to retrieve hostname of router by using POSIX api. I have already achieved it by command arp, but it creates problem when DNS is configured on the machine and at that time it showing multiple entries. In that case its really difficult to recognise hostname of router. Thanks in advance Subodh _______________________________________________ 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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