August 2006 - Darwin-dev - lists.apple.com

Re: reading/writing files from mounted device directly
by Uli Kusterer 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Cheers, -- M. Uli Kusterer http://www.zathras.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Am 29.08.2006 um 22:10 schrieb Dave Hackenyos: I am developing a product for the Macintosh platform that requires I read and write files from a mounted device. Information on the mounted device is being updated in real time but I am unable to detect the changes due to the operating system (Darwin?) caching the contents of the device into a buffer which remains static until I unmount the drive with a “diskutil unmount” command. Continually mounting and unmounting the device to see changes in a file is not desirable. Is this a local or a remote file system? What APIs exactly are you using to read/write to the device? What does "being updated" imply? Is another app updating the file? Your own? What APIs does that app use? Is the file open by your app while you're trying to read from it? You're really providing much too little detail about what you're doing. This email sent to site_archiver(a)lists.apple.com

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Re: reading/writing files from mounted device directly
by Brian Bergstrand 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Aug 29, 2006, at 3:10 PM, Dave Hackenyos wrote: Hello, Thank you for your time, Dave Hackenyos daveh(a)videx.com Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (Darwin) iD8DBQFE9KlvedHYW7bHtqIRAllHAKCN/kGHplUzd3ZMAUovtcsH8tH7YACfeS4B LnCJGkFqsF4CkAab5OmdNBQ= =iumI -----END PGP SIGNATURE----- _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… You cannot reliably read data from a device with a mounted FS and attempting to write to one is 99.99999% guaranteed to cause filesystem corruption. There's no way around either of these. Why can't you just use standard files on the filesystem? You can bypass caching on a file level (but not file system level) with fcntl (F_NOCACHE). I am developing a product for the Macintosh platform that requires I read and write files from a mounted device. Information on the mounted device is being updated in real time but I am unable to detect the changes due to the operating system (Darwin?) caching the contents of the device into a buffer which remains static until I unmount the drive with a “diskutil unmount” command. Continually mounting and unmounting the device to see changes in a file is not desirable. Using the IOKit to obtain a handle to the device and then using POSIX funtions to open/read/write does allow access to the raw disk, but I can only access bytes. Reading the entire device and programmatically reproducing the file structure to locate the file I am interested in reading is prohibitive. Changing a file and writing the entire contents of the drive back into it would take 30 seconds or more, also bad. I need a way to read and write to the file system on the mounted device not just access the bytes. Is there a no-cache option on mounting what is effectively a USB storage device? Or how do I bypass the cached buffer? Please let me know if there is a more appropriate forum for asking this question. This message has been scanned by Symantec Mail Security for SMTP. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/brian% 40classicalguitar.net This email sent to brian(a)classicalguitar.net This email sent to site_archiver(a)lists.apple.com

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reading/writing files from mounted device directly
by Dave Hackenyos 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcbLpyvNut5yVXOGSQqp2fFMxXpyug== Thread-topic: reading/writing files from mounted device directly This message has been scanned by Symantec Mail Security for SMTP. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Strange sound issues
by Dan Shoop 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Most of these apps have no individual sound preferences. Any pointers are welcomed. -- -dhan ------------------------------------------------------------------------ Dan Shoop AIM: iWiring Systems & Networks Architect http://www.ustsvs.com/ shoop(a)iwiring.net http://www.iwiring.net/ 1-714-363-1174 "The wise man doesn't give the right answers, he poses the right questions." -- Claude Levi-Strauss ------------------------------------------------------------------------ iWiring provides systems and networks support for Mac OS X, unix, and Open Source application technologies at affordable rates. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Recently I began having a very strange sound problem. Applications, for no known reason, have switched their audio output from the system default (internal speakers) to my Bluetooth headset. This started with Eudora, then befell QuickTime Player, Safari, and iChat. How is the system determining, by application, which audio I/O device to use for it's sound? I've not noticed anything suspicious in any of these app's plists, in fact most of them haven't been modified. This email sent to site_archiver(a)lists.apple.com

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Re: LWP::UserAgent Missing from Darwin Perl/5.8.6?
by Stewart.Dickson＠noaa.gov 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Priority: normal Thank you! -Stewart http://us.imdb.com/Name?Stewart+Dickson http://www.cs.unca.edu/~dickson http://emsh.calarts.edu/~mathart/MathArt_siteMap.html ----- Original Message ----- From: Martin Costabel <costabel(a)wanadoo.fr> Date: Tuesday, August 29, 2006 12:54 pm Subject: Re: LWP::UserAgent Missing from Darwin Perl/5.8.6? > Stewart.Dickson(a)noaa.gov wrote: > > > Can't locate LWP/UserAgent.pm in @INC (@INC contains: /sw/lib/perl5 > > /sw/lib/perl5/darwin > > /System/Library/Perl/5.8.6/darwin-thread-multi-2level > > /System/Library/Perl/5.8.6 > > /Library/Perl/5.8.6/darwin-thread-multi-2level /Library/Perl/5.8.6 > > /Library/Perl /Network/Library/Perl/5.8.6/darwin-thread-multi-2level > > /Network/Library/Perl/5.8.6 /Network/Library/Perl > > /System/Library/Perl/Extras/5.8.6/darwin-thread-multi-2level > > /System/Library/Perl/Extras/5.8.6 /Library/Perl/5.8.1 .) > [] > > > And how does one remedy this? > > Since you have Fink installed, you can say > > fink install libwww-pm586 > > -- > Martin > > _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: MACFORGE request for a project
by Uli Kusterer 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Am 29.08.2006 um 20:08 schrieb Dave Schroeder: On Aug 29, 2006, at 1:01 PM, Uli Kusterer wrote: okay. ... you win :,-( ;-) Cheers, -- M. Uli Kusterer http://www.zathras.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… PS - Badger, badger, Mushroom!!! That's "Badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, mushroom, mushroom!" thank you very much! This email sent to site_archiver(a)lists.apple.com

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Attaching an NKE to Existing Sockets
by Jones Curtis 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:mime-version:to:message-id:content-type:from:subject:date:x-mailer; b=JkgJz+bI4IBYkHV2b2qCT2htZhay8Zb/4tTM0bYhbKCBMjsKKFLKKstDeHRmx3CIa59kh7iPUmQdWb9OIvz9HNyglIL0N2t2eloY2HMpID9RxNe934G7+inAVVr5m300Nt5oJ5N2oV11X7dJlnN0Qg7O5Nl4EOPYr1d2cgVc75M= Anyway ... any help would be appreciated. Thanks. -- Curtis Jones curtis.jones(a)gmail.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com I hope this is an appropriate place for this question; if not, if you have any good suggestions on where I might get an answer, let me know. I've searched all over and found very little. Briefly, I would like to be able to attach a socket filter to sockets (including listeners) that were created prior to the loading of my NKE. I looked at how netstat worked, using a sysctl to get at tcbinfo, and after digging through various structs, I wasn't convinced that I'd be able to get a socket_t out of that, even if I could figure out how to get at that symbol. I also saw that every open socket is added to the associated proc struct (I think), but I wasn't sure how I could distinguish between sockets and non-sockets. And I thought I might be reduced to iterating through all possible pids, unless I could similarly get access to the pidhashtbl symbol. And both of those ideas relied on symbols that I'm probably not supposed to be using, directly, anyway. smime.p7s

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Re: MACFORGE request for a project
by Dave Schroeder 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Aug 29, 2006, at 1:01 PM, Uli Kusterer wrote: - Dave _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com PS - Badger, badger, Mushroom!!! That's "Badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, mushroom, mushroom!" thank you very much! smime.p7s

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Re: MACFORGE request for a project
by Uli Kusterer 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Everyone, on three: ALL YOUR BASE ARE BELONG TO US!! ... sorry, couldn't resist ... Cheers, -- M. Uli Kusterer http://www.zathras.de PS - Badger, badger, Mushroom!!! _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Am 28.08.2006 um 20:56 schrieb almisr: It is not with this kind of speech that you will do something in your life ... it is an easy answer fortunately that you do not work with me because you would have badly with the buttocks This email sent to site_archiver(a)lists.apple.com

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Re: LWP::UserAgent Missing from Darwin Perl/5.8.6?
by AgentM 29 Aug '06

29 Aug '06

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Stewart.Dickson(a)noaa.gov wrote: Can't locate LWP/UserAgent.pm in @INC (@INC contains: /sw/lib/perl5 /sw/lib/perl5/darwin /System/Library/Perl/5.8.6/darwin-thread-multi-2level /System/Library/Perl/5.8.6 /Library/Perl/5.8.6/darwin-thread-multi-2level /Library/Perl/5.8.6 /Library/Perl /Network/Library/Perl/5.8.6/darwin-thread-multi-2level /Network/Library/Perl/5.8.6 /Network/Library/Perl /System/Library/Perl/Extras/5.8.6/darwin-thread-multi-2level /System/Library/Perl/Extras/5.8.6 /Library/Perl/5.8.1 .) I don't hink Darwin has never included libwww by default- please someone correct me if I'm wrong. Anyway, you don't need fink: cpan install Bundle::LWP _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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