November 2008 - Darwin-dev - lists.apple.com

Re: Disabling auto-mounting of CDROM
by Shayne Wissler 21 Nov '08

21 Nov '08

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Re: Disabling auto-mounting of CDROM
by Jason Stephenson 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.18 (Macintosh/20081105) Hello, The first thing I tried was removing disk arbitration: http://www.forensicswiki.org/wiki/Disabling_Macintosh_Disk_Arbitration_Daem… Any suggestions would be appreciated. Thanks, Shayne Wissler ------------------------------------------------------------------------ _______________________________________________ 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/jason%40sigio.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… Shayne Wissler wrote: I'm trying to get OSX to stop automounting the CDROM. This is important for an application I'm writing that uses cdrecord--the automounting conflicts with cdrecord, and I don't need automounting. I work around this in a script that I wrote to run from the command line that uses cdrecord. The script checks for a mounted CDROM and unmounts it if necessary. The relevant bit is pasted below: mounted=$(mount | grep -E '/Volumes/[[:digit:]]{8}_[[:digit:]]{6}' | cut -f3 -d\ ) if [[ "${mounted}" != "" ]] ; then diskutil unmountDisk ${mounted} fi Granted that looks for a disc with a name identical to how my script formats the name of the ISO image, so it is a bit fragile in that respect. If you're already using NSTask or system() to run cdrecord, you could also use it to run diskutil to unmount the disc. Also, is there some reason that you are using cdrecord instead of Disc Recording framework or hdiutil? I am considering changing my script to use the Apple-provided tools instead of cdrecord/mkisofs. That caused repeated crashing of metadata.mds, and eventual kernel panic. So I disabled that daemon. The messages went away but my system still panics after 10min or so. This email sent to jason(a)sigio.com This email sent to site_archiver(a)lists.apple.com

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Re: interprocess communication
by Rakesh Singhal 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; 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; bh=IlaBIkS93JOwA1La65xB1aGOlF3hKypOgUiFv705Z/k=; b=qo0HWnDJDJSe+3TPLolnFbSEEsIOfqVY8CwLvakT1HrmJyPtIBbT/JdDFtIW8rmytY jhgB+OS2tI7+S1PcmLVBRnUDTR+9PDwNCiHZr5w0rVsLcbeZ696BX1c+qJgv9VyJPssa wz1opqNfUQixK56EkbiIi6ONoXvqKh7UnVSeU= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=j6JOAvz0rLVeRjTgV25K+ya48ZkOaY5ir1orcFrdgb8OWnTWsE9NfrRfO2DefGPW3G R7FvBGXAysOF0Cp3tZLEf0aupcxj2gGeptDQVfRGu4RFA6mTyJKEYESSCRcDn0Vq3cRW 1yyBXHpo/nGK78mfGGj/tSGJVNvk8zRnPOmyM= Yes, but I do not need counting semaphore. Binary semaphore fits in my case. I am looking for it to understand and then implement. Regards On Fri, Nov 21, 2008 at 2:05 AM, Terry Lambert <tlambert(a)apple.com> wrote: > > On Nov 20, 2008, at 4:07 AM, Jean-Daniel Dupas wrote: >> >> Le 20 nov. 08 à 12:30, Rakesh Singhal a écrit : >>> >>> I want some advice on Inter Process Communication (IPC). I have one >>> dynamic library(dylib) and one application(app). Actually I am porting >>> something from Windows so I will write about windows code. >>> >>> In Application, I create one event object (eventName). Now, I create >>> one thread and call waitForSingleObject and now it is waiting for >>> someone to set the event and the it will come out. In DLL I create >>> one event object of same name (eventName). Now, whenever I need, set >>> the event in DLL then in application that thread comes out of wait and >>> executes the code and again start waiting. > > You are describing a condition variable, which is a simplified case of a > counting semaphore. Google either of these. > > -- Terry _______________________________________________ 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: Disabling auto-mounting of CDROM
by sspies＠apple.com 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Importance: Normal User-agent: SquirrelMail/1.4.15 On Thu, November 20, 2008 7:29 pm, Shayne Wissler wrote: > Hello, > > I'm trying to get OSX to stop automounting the CDROM. This is important > for > an application I'm writing that uses cdrecord--the automounting conflicts > with cdrecord, and I don't need automounting. > > The first thing I tried was removing disk arbitration: If you want your application to work on systems other than your own, removing parts of the system isn't a good idea. I suggest looking at the public DiskArbitration.framework. The documentation is somewhat sparse, but the source is open and DADiskClaim() may do what you need to prevent Disk Arbitration from doing its thing when you insert a blank disk. -Soren _______________________________________________ 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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what does FAILED TO GET ASN FROM CORESERVICES mean?
by Bill Janssen 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I'm running a daemon, started by SystemStarter at boot time, and running as me (an admin account), which periodically invokes OpenOffice's "soffice" binary to convert MS Office docs to PDF. Works most of the time, but sometimes OpenOffice crashes with this error message: FAILED TO GET ASN FROM CORESERVICES so aborting. Here's the stack of the crashing thread: suntzu:Logs bier$ cat /Library/Logs/CrashReporter/soffice.bin_2008-11-20-173308_suntzu.crash Process: soffice.bin [46197] Path: /Library/GoodStuff/1.0/OpenOffice.org.app/Contents/MacOS/soffice.bin Identifier: soffice.bin Version: ??? (???) Code Type: X86 (Native) Parent Process: soffice [46196] Date/Time: 2008-11-20 17:33:08.237 -0800 OS Version: Mac OS X 10.5.5 (9F33) Report Version: 6 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Crashed Thread: 0 Thread 0 Crashed: 0 libSystem.B.dylib 0x0054bb9e __kill + 10 1 libSystem.B.dylib 0x005c2ec2 raise + 26 2 libSystem.B.dylib 0x005d247f abort + 73 3 com.apple.HIServices 0x02db5614 _RegisterApplication + 2447 4 com.apple.HIServices 0x02db4c5a GetCurrentProcess + 50 5 com.apple.HIToolbox 0x00b2f2f8 GetSystemUIMode + 44 6 com.apple.HIToolbox 0x00b2f2a7 IsMenuBarVisible + 41 7 com.apple.AppKit 0x07241155 _NSInitializeAppContext + 59 8 com.apple.AppKit 0x07240ade -[NSApplication init] + 819 9 com.apple.AppKit 0x072404ef +[NSApplication sharedApplication] + 177 10 libvclmxi.dylib 0x05b9ca9b component_getFactory + 138227 11 libvclmxi.dylib 0x05b9cd79 component_getFactory + 138961 12 libvclmxi.dylib 0x05969cd7 SVMain() + 17 13 libsofficeapp.dylib 0x004a567c soffice_main + 160 14 soffice.bin 0x00002bba main + 30 15 soffice.bin 0x0000252a start + 258 16 soffice.bin 0x00002451 start + 41 Can anyone explain what's going on when this happens? Thanks. Bill _______________________________________________ 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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Disabling auto-mounting of CDROM
by Shayne Wissler 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type; bh=pT97eixGLMWIPjuxerbWxSIU44m8UG0jL+hv3IF6XFo=; b=TPhXaw8Hx3ZlUmLvPoUNti7jpW+3zwTorX9xkd+tQeuxr+NlmRvPb7jHND66gRP6Ge EUIUSIwtzkLJeI+Cft5zCFLLD3KB1wkxp2skM9XWVcgjjrd2AMyaLfYm72TyjCKCEZEp 8wjOjKvFlVr3CqwGt+BcaIXehRnxph8vsvikI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=M9rP71v1Ka9u9EkiAV5NG8fQi3CixwnILnWDWYiNVJOS8OQa0EGK/hyIWGt4pTxexi Et3naP/sJ+FPxUnmTKNbixM9UN565/nzfGCHHmlWTmwOMXqAYiAiEJHgKcUM6bpDjid2 aVTcV3P+GPP4WJvP7OYa8DxzOsB/JUJhxUZwQ= _______________________________________________ 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: Apple's Linker
by Boyd Waters 21 Nov '08

21 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 20, 2008, at 4:05 PM, Daniel Corbe wrote: Some other cool OS books: http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/index.html http://tinyurl.com/5536k4 http://tinyurl.com/5eq86g Sincere apologies if I totally missed the point of your question. _______________________________________________ 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… I'm trying to learn more about how Operating Systems work so I'm taking an OS design course, which includes kernel development. Since I am a Mac user, I would love very much to complete my course work on my Mac Hmm... if I'm parsing your email correctly, then you will find completing your (linux-centric) coursework on your Mac to be almost impossible. The Mac OS architecture differs from Linux is some important ways, not least of which is the structure of the kernel extensions -- which are not a.out (neither are x86 linux, they are ELF, right?). Use Linux inside of VirtualBox on your Mac -- then you can "use your Mac" to complete your courseware, and not spend a dime. If you've got VMWare or Parallels on your Mac, then that's your ticket. Use the GNU/ Linux GCC toolchain on the (virtual) Linux machine to do your coursework. When you get a spare moment, read Amit Singh's *awesome* "Macintosh OS X Internals" book -- http://osxbook.com/ This email sent to site_archiver(a)lists.apple.com

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Apple's Linker
by Daniel Corbe 20 Nov '08

20 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type; bh=osREK9ubT63wvPcqpQE0owX8ICeaXoyMP6Ktrsc/LSc=; b=LtKWgpVUrekoZcNkZB1voBnLKA7jhdfzHGjAIsP2iTYmpmqjHwlj+pocEDULJOco/i fHJu/jedBBvnCJH9p90sTjDhRftHIulRQtE8CU38+RvQx//WWJE8A7da2+d7YP8/AlcA 968apv4l4v7mLiVy80SoCKOwOQbQiRis6tAHI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=vWbf3uZHB/YDfVivFu4XN8iSyN2C5V4YXRcLM8aqaq5BjzuwjO7H4ev0EUrUB8NQ5L lo2ZH1ZJgdWkVGdOaGGj/rqyXCrO/mz49YFygWwHeX/jX9LEqR/LsjT5OoTH9TBfW+AZ 79oe5yqQ2O6t+8Hmv1KIqUkPFMVV5pKjfxt1s= _______________________________________________ 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: interprocess communication
by Terry Lambert 20 Nov '08

20 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com -- Terry _______________________________________________ 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… On Nov 20, 2008, at 4:07 AM, Jean-Daniel Dupas wrote: Le 20 nov. 08 à 12:30, Rakesh Singhal a écrit : I want some advice on Inter Process Communication (IPC). I have one dynamic library(dylib) and one application(app). Actually I am porting something from Windows so I will write about windows code. In Application, I create one event object (eventName). Now, I create one thread and call waitForSingleObject and now it is waiting for someone to set the event and the it will come out. In DLL I create one event object of same name (eventName). Now, whenever I need, set the event in DLL then in application that thread comes out of wait and executes the code and again start waiting. You are describing a condition variable, which is a simplified case of a counting semaphore. Google either of these. This email sent to site_archiver(a)lists.apple.com

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Re: interprocess communication
by Jean-Daniel Dupas 20 Nov '08

20 Nov '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Le 20 nov. 08 à 12:30, Rakesh Singhal a écrit : Hi all I want some advice on Inter Process Communication (IPC). I have one dynamic library(dylib) and one application(app). Actually I am porting something from Windows so I will write about windows code. In Application, I create one event object (eventName). Now, I create one thread and call waitForSingleObject and now it is waiting for someone to set the event and the it will come out. In DLL I create one event object of same name (eventName). Now, whenever I need, set the event in DLL then in application that thread comes out of wait and executes the code and again start waiting. I want to implement similar kind of thing in Mac also. I want to create one event with same name in both process and application should notified whenever dylib set the event. I do not know that I have to do with event or something else. DLL is standard C++ dynamic library and application is standard C++ tool (command line utility). Please suggest me to solve this issue. Thanks and regards rksinghal You can probably use darwin notifications: http://developer.apple.com/documentation/Darwin/Conceptual/MacOSXNotifcatio… _______________________________________________ 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… Or if you prefere an higher level concept, have a look at CoreFoundation notification (using distributed notification center). (see the link above for the different X notifications API) This email sent to site_archiver(a)lists.apple.com

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