November 2004 - Darwin-dev - lists.apple.com

problems using setitimer
by michael 08 Nov '04

08 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I have an app that relies on "setitimer" to filter repetitive inputs from a RF receiver. The transmitter sends multiple copies of a message, and once I've seen a good one, I want to ignore any duplicates for 'some time'. This code is in a commercial app that has been released for 8 months, and only a small number of users have reported this problem. The problem is that the function suddenly begins to report errors for every attempt to 'reset' it, and only terminating the task will regain use of the timer. I use the form : theErr = setitimer(ITIMER_REAL, iReset, NULL); The value at iReset is set once at the start of the task, and never gets changed. The value is established by : iReset.it_interval.tv_sec = 0; iReset.it_interval.tv_usec = 0; iReset.it_value.tv_sec = 0; iReset.it_value.tv_usec = 600000; I have put test code inside the main loop that will announce any changes to the values. It has never reported any change. The Error Code I get is : 22 which according to sys/errno.h is "EINVAL" which means "Invalid Argument" Before I spend more time with this, I thought I should write to this list and see if someone else has seen such a case. If no one has such experience, perhaps someone could point me to the open source that manages these timers ? thanks very much michael _______________________________________________ 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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Incorrect results from BSD level libraries for nl_langinfo and locale C functions
by Robert Buck 08 Nov '04

08 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcTFuZqEg5KvbSOOQfuN70uz6yN6Dg== Thread-topic: Incorrect results from BSD level libraries for nl_langinfo and locale C functions Context: Mac OS X Darwin 7.5 Functions: nl_langinfo, locale Problem: Regardless of which language/locale I configure under the internationalization settings in Mac OS X, nl_langinfo and locale always return US-ASCII. If I were to write a Java program that called java.lang.System.getProperty("file.encoding"), this returns SJIS when the user language is configured as Japanese, but nl_langinfo and locale functions continue to return US-ASCII. Given a C/C++ software environment that: (a) links in Apple's JVM, which itself (the JVM that is) determines the language/locale settings through APIs such as GetApplicationTextEncoding or CFStringGetSystemEncoding, and (b) also has BSD level libraries that try to determine the locale/language settings via nl_langinfo and locale C functions, some operations in said software environment results in incorrect results, or introduces data corruption. It has been said to me that, "Our [that is Apple's] BSD group is investigating how to tie the BSD level into the higher-level international support a little better. One possible approach would be to have [BSD level libraries] get its default character set from an environment variable (if present) which the higher-level software could set. If you'd like to see this happen, please file a bug (it always helps to have a request from a real developer)." Questions: [1] How can one configure the default charset, that is, configure the native file encoding returned by nl_langinfo and locale, in OS X? [2] How can BSD level libraries access the current user/application default charset? [3] Are there any work arounds that will work for BSD level libraries, and applications, until the BSD group corrects the C libraries? -------------------------------------------------- Robert Buck The MathWorks Robert.Buck(a)mathworks.com 3 Apple Hill Dr www.mathworks.com Natick, MA 01760 _______________________________________________ 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: mount_smbfs - Finder - write access mismatch
by Miguel Filipe 07 Nov '04

07 Nov '04

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:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=bUvvilCy5KDeWgmsaru4hnhGCy/l6acMG4gZGoPLiElwWiEaU2fRmnP0ikYo/SvaagJN48MGHfnNvYyMNhUZhr238V1Eb8NS2dvH5jfRaaorYp/dVDyPqRdpmcJtO2nkH01rnFtIIBBwKM/Fg42cI2545lyFlQ7TTZQT+O15JNs= Hi all, I have noticed the discussed issue myself. I use something like: /sbin/mount_smbfs //$USER:$PASSWD@$HOST/$NAME /Volumes/$NAME open "$MOUNT_POINT" How can I make my bash shell scripts that mount smb shares (using mount_smbfs ) work properly with finder? On Thu, 28 Oct 2004 07:36:06 -0500, Paul Nelson <nelson(a)thursby.com> wrote: > Are you aware of how disk arbitration works? > No. > You got the volume mounted using mount_smbfs, but the Finder did not know > this happened. The disk arbitration stuff is what does this. There are > some calls to make to disk arbitration to get the Finder to notice the new > volume. > But finder shows the mounted share, and browses it... which intuitively tells me that finder noticed that it has a new volume on the filesystem tree. Only size of share, dirs, files, and write capabilities are incorrect. And why should finder behave differently from the shell? Its just a diferent front end to the same file system. > > From: "Van Vlierberghe, Steven" <SVV(a)esko-graphics.com> > > Date: Thu, 28 Oct 2004 10:31:40 +0200 > > To: <darwin-dev(a)lists.apple.com> > > Subject: RE: mount_smbfs - Finder - write access mismatch > > > > > > > > Thanks for the reactions and the tips. > > > > I have tried with osascript -e 'tell application "Finder" to mount volume > > "smb://host/share"' > > and now it works like expected. what is osascript? > > > > Conclusion: > > although I use the documented mount_smbfs command, > > the Finder looks confused after mounting a Windows share in this way. > > IMHO, this should be considered as a bug in the Finder. > > I agree. > > kind regards > > steven > > _______________________________________________ > > 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/nelson%40thursby.com > > > > This email sent to nelson(a)thursby.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/miguel.filipe%40gmail.com > > This email sent to miguel.filipe(a)gmail.com > -- Miguel Sousa Filipe _______________________________________________ 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: USB and Firewire not active anymore on a G5
by Fernando Urbina 06 Nov '04

06 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 5, 2004, at 9:30 PM, Marc Van Olmen wrote: -- Fernando Urbina USB Technology Team Apple Computer, Inc. _______________________________________________ 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… Nov 5 23:24:49 localhost kernel: USBF: 22719.378 AppleUSBHubPort: Error 0xe00002ed: set feature (resetting port) This is an inoffensive message that we should not be displaying but are anyways. Sorry about that. You can safely ignore it. This email sent to site_archiver(a)lists.apple.com

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Re: USB and Firewire not active anymore on a G5
by Marc Van Olmen 06 Nov '04

06 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com hi, I installed the latest OS X release: 10.3.6 and now I see this is in the systemlog: many thx, mvo On Nov 5, 2004, at 4:50 PM, Garth Cummings wrote: Hi Marc, On Nov 5, 2004, at 11:32 AM, Marc Van Olmen wrote: hi, Question 1: I'm wondering what could have caused this problem? Detailed Description of the problem: ==================================== --gc __________________________________________________________________ Garth Cummings Apple Developer Technical Support gcummings(a)apple.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… Nov 5 23:24:49 localhost kernel: USBF: 22719.378 AppleUSBHubPort: Error 0xe00002ed: set feature (resetting port) I'm using Princeton screen with build in Hub to switch a G4 and a G5 system. so maybe the usb problem is related to that. I have now a few more ideas thanks to the list that I can try to use to trace this issue. I have problem that my G5 (a 1st generation Dual 1.8 and 2nd generation Dual 2.5) USB and Firewire are dead after running our software for a very longtime. (see description below) Question 2: If I could add something to my source code to prevent this from happening, like polling the USB and the Firewire device through IOKit. Question 3: Also could i add code to my application to wake up the USB and Firewire? The problem never happens on a G4 so it must something specific with the G5 IOKit drivers. We have written a software that transfers video data (2vuy) format to the Decklink card through the QuickTime API and and uses coreAudio output Audio Unit's for the sound. All this happens in threads!!!! We intend to build broadcast solution based on the Decklink card. When we use this system for a very long time (12 hours or more...) we noticed that sometimes on a G5 system (currently never happend on a G4) the USB bus and Firewire bus are not active anymore. When I plugin an iPod the iPod doesn't mount, when i try to attach keyboard the keyboard isn't active or the mouse doesn't get current( no lights in the mouse) etc... Sometimes it doesn't happen for 24 hours, so it is random. The ethernet cable is still working because in System Log i see the information unplugging/plug in appearing, I can still access the machine remotely. I can access the files. My program still runs fine, the clock still keeps on ticking, the fans of the G5 still keeps on working etc. So I'm wondering if the driver of the Decklink card could have caused this? As anyone else seen this kind of problems on a G5 system maybe with different software. This is a difficult enough problem that you might want to submit this as a developer tech support incident. If you're not familiar with that, please see the URL in my email signature. The odds of figuring this out on the mailing list aren't good. Have you looked in the system log (/var/log/system.log or use /Applications/Utilities/Console.app) for any errors? For the USB case, you can install a logging version of the USB family to get more details about when the failure occurs. See <http://developer.apple.com/hardware/usb/usbloggers.htm>. It's possible the Decklink driver is the issue, just not enough info here to give more than a guess. http://developer.apple.com/technicalsupport This email sent to site_archiver(a)lists.apple.com

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Re: Darwin 7.6 Source Code Available
by Jordan Hubbard 06 Nov '04

06 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Awesome job getting this out so quickly! Thanks, Kevin On Nov 5, 2004, at 1:57 PM, Kevin Van Vechten wrote: _______________________________________________ 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/jkh%40apple.com This email sent to jkh(a)apple.com -- Jordan K. Hubbard Engineering Manager, BSD technology group Apple Computer _______________________________________________ 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… The Darwin team is pleased to announce the availability of the source code for Darwin 7.6. These sources correspond to Mac OS X 10.3.6, and are available via the web at <http://www.opensource.apple.com/darwinsource/>. [Nov 4 2004] -- Kevin Van Vechten <kvv(a)apple.com> Open Source Software Engineer Apple Computer This email sent to site_archiver(a)lists.apple.com

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Re: mach_port_deallocate(kernel_thread) failed: (os/kern) invalid
by Marc Van Olmen 05 Nov '04

05 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Matt and Paul You were right that deallocating a thread is mutually exclusive: Create it detached Detach it Join in. pthread_join(mThread); pthread_detach(mThread); or just call pthread_join(mThread); regards, mvo On Oct 31, 2004, at 10:43 PM, Matt Watson wrote: On Oct 31, 2004, at 5:40 PM, Marc Van Olmen wrote: http://www.awprofessional.com/title/0201633922 matt. _______________________________________________ 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… Just want to give an update on this so this e-mail thread is up to date for people that read the archives: Because there is no difference in my application in virtual memory increasing: When i call I had one bug that was giving me different results and after a week of testing i can confirm your thoughts. I still have the fact that when i use pthread_join that my virtual memory is increasing. I know for a fact that I myself don't leak any memory because all my memory calls are done by my own framework and they verify when a pointer is not released. The virtual memory increasing (or the pthread_join) is not something that happens a lot in my application, because my application runs most of the time 24/7 and never need to stop. This problem was related to the fact that I called pthread_detach at the end of the feeder thread routine. Also I was waiting with pthread_join until the thread was finished. So if I called the pthread_detach after the pthread_join everything was fine and also all the resources were deleted. Then the real problem was that you were calling pthread_join on a (potentially) non-existent thread. You want to either pthread_detach, or pthread_join, not both. Both of these will reclaim the thread's resources, with pthread_join providing a rudimentary synchronization mechanism. Also, your fix still has a bug, since now you're calling pthread_detach on a non-existent thread. Also, if you know you're going to detach the thread, and don't need the join synchronization, you should just create it with the PTHREAD_CREATE_DETACHED attribute and avoid calling pthread_detached. These and other pthreads concepts are explained in any good pthreads reference. I usually recommend David Butenhof's _Programming_with_POSIX(R)_Threads_: This email sent to site_archiver(a)lists.apple.com

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Darwin 7.6 Source Code Available
by Kevin Van Vechten 05 Nov '04

05 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.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… The Darwin team is pleased to announce the availability of the source code for Darwin 7.6. These sources correspond to Mac OS X 10.3.6, and are available via the web at <http://www.opensource.apple.com/darwinsource/>. [Nov 4 2004] -- Kevin Van Vechten <kvv(a)apple.com> Open Source Software Engineer Apple Computer This email sent to site_archiver(a)lists.apple.com

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Re: USB and Firewire not active anymore on a G5
by Garth Cummings 05 Nov '04

05 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi Marc, On Nov 5, 2004, at 11:32 AM, Marc Van Olmen wrote: hi, Question 1: I'm wondering what could have caused this problem? Detailed Description of the problem: ==================================== --gc __________________________________________________________________ Garth Cummings Apple Developer Technical Support gcummings(a)apple.com http://developer.apple.com/technicalsupport _______________________________________________ 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 have problem that my G5 (a 1st generation Dual 1.8 and 2nd generation Dual 2.5) USB and Firewire are dead after running our software for a very longtime. (see description below) Question 2: If I could add something to my source code to prevent this from happening, like polling the USB and the Firewire device through IOKit. Question 3: Also could i add code to my application to wake up the USB and Firewire? The problem never happens on a G4 so it must something specific with the G5 IOKit drivers. We have written a software that transfers video data (2vuy) format to the Decklink card through the QuickTime API and and uses coreAudio output Audio Unit's for the sound. All this happens in threads!!!! We intend to build broadcast solution based on the Decklink card. When we use this system for a very long time (12 hours or more...) we noticed that sometimes on a G5 system (currently never happend on a G4) the USB bus and Firewire bus are not active anymore. When I plugin an iPod the iPod doesn't mount, when i try to attach keyboard the keyboard isn't active or the mouse doesn't get current( no lights in the mouse) etc... Sometimes it doesn't happen for 24 hours, so it is random. The ethernet cable is still working because in System Log i see the information unplugging/plug in appearing, I can still access the machine remotely. I can access the files. My program still runs fine, the clock still keeps on ticking, the fans of the G5 still keeps on working etc. So I'm wondering if the driver of the Decklink card could have caused this? As anyone else seen this kind of problems on a G5 system maybe with different software. This is a difficult enough problem that you might want to submit this as a developer tech support incident. If you're not familiar with that, please see the URL in my email signature. The odds of figuring this out on the mailing list aren't good. Have you looked in the system log (/var/log/system.log or use /Applications/Utilities/Console.app) for any errors? For the USB case, you can install a logging version of the USB family to get more details about when the failure occurs. See <http://developer.apple.com/hardware/usb/usbloggers.htm>. It's possible the Decklink driver is the issue, just not enough info here to give more than a guess. smime.p7s

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USB and Firewire not active anymore on a G5
by Marc Van Olmen 05 Nov '04

05 Nov '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com hi, Question 1: I'm wondering what could have caused this problem? Question 3: Also could i add code to my application to wake up the USB and Firewire? Detailed Description of the problem: ==================================== cheers and thanks. mvo _______________________________________________ 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 have problem that my G5 (a 1st generation Dual 1.8 and 2nd generation Dual 2.5) USB and Firewire are dead after running our software for a very longtime. (see description below) Question 2: If I could add something to my source code to prevent this from happening, like polling the USB and the Firewire device through IOKit. The problem never happens on a G4 so it must something specific with the G5 IOKit drivers. We have written a software that transfers video data (2vuy) format to the Decklink card through the QuickTime API and and uses coreAudio output Audio Unit's for the sound. All this happens in threads!!!! We intend to build broadcast solution based on the Decklink card. When we use this system for a very long time (12 hours or more...) we noticed that sometimes on a G5 system (currently never happend on a G4) the USB bus and Firewire bus are not active anymore. When I plugin an iPod the iPod doesn't mount, when i try to attach keyboard the keyboard isn't active or the mouse doesn't get current( no lights in the mouse) etc... Sometimes it doesn't happen for 24 hours, so it is random. The ethernet cable is still working because in System Log i see the information unplugging/plug in appearing, I can still access the machine remotely. I can access the files. My program still runs fine, the clock still keeps on ticking, the fans of the G5 still keeps on working etc. So I'm wondering if the driver of the Decklink card could have caused this? As anyone else seen this kind of problems on a G5 system maybe with different software. This email sent to site_archiver(a)lists.apple.com

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