July 2006 - Darwin-kernel - lists.apple.com

Re: kext programming with VIM?
by John Dalgliesh 29 Jul '06

29 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, hello, I am new to Mac programming, and have a question: it seems that the only way to do kext programming is to do it with Xcode? Can I do it with Vim? If it is possible, how to make the Makefile for the kext code? But... Switching from vim editor to anything else is too difficult for me. Besides, cscope/ctags give me the best way to analyse the code. Combining it with vim shortcuts, I dont see anything can beat that :-) Many thanks. H {P^/ _______________________________________________ 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 Sat, 29 Jul 2006, NAHieu wrote: Well I am sure there is a way to do what Xcode does with Makefiles. Look at the terminal output for the build process for some ideas. Also, there is the 'xcodebuild' tool to build an Xcode project from the command line. ... there is no reason you can't use vim to edit your sources and Xcode to build them. Just because Xcode has an editor built in doesn't mean you have to use it. You can use any editor to modify the files. This email sent to site_archiver(a)lists.apple.com

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Re: kext programming with VIM?
by Shawn Erickson 29 Jul '06

29 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jul 28, 2006, at 11:21 PM, NAHieu wrote: hello, I am new to Mac programming, and have a question: it seems that the only way to do kext programming is to do it with Xcode? Can I do it with Vim? If it is possible, how to make the Makefile for the kext code? Switching from vim editor to anything else is too difficult for me. Besides, cscope/ctags give me the best way to analyse the code. Combining it with vim shortcuts, I dont see anything can beat that :-) Why not just use vim to edit and search your code and Xcode to build it? man xcdoebuild -Shawn _______________________________________________ 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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kext programming with VIM?
by NAHieu 29 Jul '06

29 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=hQoNUDgZoFC2z8d42E0KSWiIFGlziU2t8xgEGzFh46dk2VrhaL0I4cpLZh2QGKDU82ul0Ibfk9F/vhVHsA92o2BQfYrG+XNylu9eCpbzuuFHMLmAek4pwftK1GK+dkZJJ/0TABgmXVhn26Vz6H5REHN058o9qAcBTJV1i2MYiUI= hello, I am new to Mac programming, and have a question: it seems that the only way to do kext programming is to do it with Xcode? Can I do it with Vim? If it is possible, how to make the Makefile for the kext code? Switching from vim editor to anything else is too difficult for me. Besides, cscope/ctags give me the best way to analyse the code. Combining it with vim shortcuts, I dont see anything can beat that :-) Many thanks. H _______________________________________________ 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: bypassing unified buffer cache?
by Nathan Scott 27 Jul '06

27 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com User-agent: Mutt/1.2.5i On Thu, Jul 27, 2006 at 04:59:41PM +0100, Quinn wrote: > At 11:50 -0400 27/7/06, Travis Rose wrote: > >My other question: is this code going to be platform-specific, or is > >it making calls into BSD-kernel which potentially can map to linux? > > I believe that Linux has similar functionality, but I don't know them > off the top of my head. Most modern Unix alike systems support direct I/O these days (incl. Linux), and many applications are coded to use that interface, e.g. http://www.dba-oracle.com/oracle_tips_direct_io.htm ... the second half of that page gives advice on some OSes allowing direct I/O. Its typically implemented as a flag to open(2) and an fcntl(F_SETFL) also enables it. On the surface, it'd seem to be a straightforward exercise to map O_DIRECT to F_NOCACHE or vice-versa but probably the devil's in the details. cheers. -- Nathan _______________________________________________ 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: bypassing unified buffer cache?
by plumber Idraulico 27 Jul '06

27 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com it depends on what you use , if you use posix-standard API/methods or specific os features you can adjust your code for a specific-platform #ifdef OS_CSONT #ifndef METHOD #define METHOD(x) .... ( it's the law , "Everyone Does It") we can't answer for u Best Regards, {Plum} {Plumber Idraulico} Software Engineer/Unix Client/Server Software Engineer Paris - France _ /o\ // \\ The ASCII \\ // Ribbon Campaign \V/ Against HTML /A\ eMail! // \\ _______________________________________________ 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.… My other question: is this code going to be platform-specific, or is it making calls into BSD-kernel which potentially can map to linux? This email sent to site_archiver(a)lists.apple.com

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Re: bypassing unified buffer cache?
by Quinn 27 Jul '06

27 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Not AFAIK. fcntl is a standard API. F_NOCACHE is a Mac OS X-specific extension. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ 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.… At 11:50 -0400 27/7/06, Travis Rose wrote: Pardon my ignorance, but is there a standard API for doing this? Getting the system's page size can be done via a standard API (<x-man-page://3/sysconf> with the _SC_PAGESIZE selector (which, incidentally, isn't listed on our man page)). Allocating memory on a page boundary can be done with <x-man-page://3/valloc> (which is a BSDism; I'm sure there are alternatives on non-BSD systems; if all else fails, allocate an extra page and round it yourself). My other question: is this code going to be platform-specific, or is it making calls into BSD-kernel which potentially can map to linux? I believe that Linux has similar functionality, but I don't know them off the top of my head. This email sent to site_archiver(a)lists.apple.com

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Re: bypassing unified buffer cache?
by Travis Rose 27 Jul '06

27 Jul '06

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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Re: bypassing unified buffer cache?
by Quinn 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com man fcntl /F_NOCACHE S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ 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.… At 17:54 +0200 26/7/06, Jonas Maebe wrote: Also, for maximum effectiveness, you should ensure that your disk I/Os are to a page aligned buffer, at a page aligned offset with the file, and are an even multiple of a page in length. This email sent to site_archiver(a)lists.apple.com

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Re: Remove FireWall entries. How?
by Josh Graessley 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -josh On Jul 26, 2006, at 11:00 AM, plumber Idraulico wrote: man ipfw :) On 7/26/06, Josh Graessley <jgraessley(a)apple.com> wrote: -josh On Jul 26, 2006, at 10:29 AM, rohit dhamija wrote: Best Regards, {Plum} {Plumber Idraulico} Senior Software Engineer/Unix Client/Server Software Engineer Paris - France _ /o\ // \\ The ASCII \\ // Ribbon Campaign \V/ Against HTML /A\ eMail! // \\ _______________________________________________ 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 think that if you mess with the ipfw rules, the built-in personal firewall will assume there is another firewall running and disable itself. This may also interfere with internet sharing. This is discussion would probably be more appropriate on macnetworkprog(a)lists.apple.com. So is it not advisable to make/add your rules in the FireWall settings ? I thought to add the rules while installing my app and remove while unistallation. I believe contents of this file are considered an implementation detail and not an API. I think the current approved method for adding rules to the firewall is to give detailed instructions on how the user may do this. Ultimately, the best solution is to turn the stupid thing off. But if I user thinks they can't live without Blue Widget Goo and you try to take it from them, they resent you. So we live with a stupid personal firewall that does nothing to increase the security of the machine. The only thing it does do is break applications that want to use the network for legitimate purposes. > I have added a dictionay named SHK under the firewall dictionary entry > of com.apple.sharing.firewall.plist with the following command: > > defaults write "/Library/Preferences/com.apple.sharing.firewall" > "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; > > somewhat like this: > ^Firewall --- Dictionary > ^SHK ---Dictionary > ^ Port --- Array > > Now what should I do if I want to delete this SHK entry from plist? > > I have tried: > defaults delete "/Library/Preferences/com.apple.sharing.firewall" > firewall > > It deletes the complete firewall dictionary. But I want to remove just > SHK entry and not the complete firewall entry. > _______________________________________________ > 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/jgraessley% > 40apple.com > > This email sent to jgraessley(a)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/jgraessley% 40apple.com This email sent to jgraessley(a)apple.com smime.p7s

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Re: Remove FireWall entries. How?
by Josh Graessley 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com That is correct. -josh On Jul 26, 2006, at 10:54 AM, rohit dhamija wrote: I believe contents of this file are considered an implementation detail and not an API. I think the current approved method for adding rules to the firewall is to give detailed instructions on how the user may do this. Ultimately, the best solution is to turn the stupid thing off. But if I user thinks they can't live without Blue Widget Goo and you try to take it from them, they resent you. So we live with a stupid personal firewall that does nothing to increase the security of the machine. The only thing it does do is break applications that want to use the network for legitimate purposes. -josh On Jul 26, 2006, at 10:29 AM, rohit dhamija wrote: -- Rohit Dhamija(M) 9818446545 _______________________________________________ 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 The worst part is that your application has no way to know if it isn't functioning because of the firewall. If you are an Apple Developer, you may want to consider escalating this through Developer Technical Support (DTS). A number of developers run in to this problem and there is no good solution. So is it not advisable to make/add your rules in the FireWall settings ? I thought to add the rules while installing my app and remove while unistallation. On 7/26/06, Josh Graessley <jgraessley(a)apple.com> wrote: > I have added a dictionay named SHK under the firewall dictionary entry > of com.apple.sharing.firewall.plist with the following command: > > defaults write "/Library/Preferences/com.apple.sharing.firewall" > "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; > > somewhat like this: > ^Firewall --- Dictionary > ^SHK ---Dictionary > ^ Port --- Array > > Now what should I do if I want to delete this SHK entry from plist? > > I have tried: > defaults delete "/Library/Preferences/com.apple.sharing.firewall" > firewall > > It deletes the complete firewall dictionary. But I want to remove just > SHK entry and not the complete firewall entry. > _______________________________________________ > 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/jgraessley% > 40apple.com > > This email sent to jgraessley(a)apple.com smime.p7s

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