January 2009 - Darwin-dev - lists.apple.com

Re: Launch a user-process from daemon
by Rakesh Singhal 27 Jan '09

27 Jan '09

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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=oQY7SkSBu/TsjDlJha2yK7Mg/qihxk5QN8D0vRs0sbE=; b=NSHyeLVdPuB0XUDeEDlMOmr3m46xwSElHm7BannUWTIOz9l7C6Duuo+X5sUoRXIqnu 85lhQGPHQWbHP+LbyYkc4AtdKO/sGxajGLpwjTJD1+Baz8ItjB0/BrBOSOjyCl2T1oqK UFS0MgOeHEupQAETySGe9jllS9i1JNzOeo0E4= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=ueDQ1IFoPhxON0qpLRKkMamJ9M0QKEggwDfbCRqn7g2xUtMI4bgeP9tq2cES5/SEcM JhE9LuwcIdqvAa5Embb22kiOIWsPN3qe4tJBasUY03XbWJ0XQpycinRjHVLaggqhVxor YbFhC+PpajWoova7RzXtpV6iF8eKU3FEJ/Vtg= Thanks. Is there any other way to launch GUI from one process and I have to pass one argument also? Closing of process should not kill GUI. I have tried execl() but it is not launching the GUI and even it does not give any error also. I used it with fork(). I have tried system() also but in this case caller thread wait for executing of GUI and I cant close the process w/o closing the GUI. Regards rksinghal On Fri, Jan 23, 2009 at 11:31 PM, Rakesh Singhal <rakesh.singhal(a)gmail.com> wrote: > Thanks a lot. I will try as per your suggestions. > > Regards > rksinghal > > > On Fri, Jan 23, 2009 at 3:35 AM, Shawn Erickson <shawnce(a)gmail.com> wrote: >> The reason I am wanting to step back and understand what you are >> trying to accomplish for your users it help ensure you are using an >> implementation that is a good fit. >> >> Is what Philip stated below close to what you are trying to provide to >> your users? >> >> "We have a USB device that needs to be detected when it is plugged in. >> When it's first connected it will launch an application showing a >> configuration window to the user -- but only if conditions Z, Y, and X >> are met." >> >> If so I would ask the following additional questions... >> >> 1) What type of USB is this? What type of service is it providing to >> the user? (give us a general idea) >> >> 2) Do you need some process to remain running as long as the USB >> device is connected to the system? >> 2a) If so what service is this process providing to the user? >> 2b) Does this process need to interact (UI) with the user? >> >> 3) What service does the GUI application you have been talking about >> provide to your users? >> 3a) Does it have to run before they can use your USB device? >> 3b) Does it only need to be run once to configure the USB device? >> 3c) Could the user run when they needed/wanted? >> >> 4) Would providing a system preference plugin be a better solution? >> >> 5) Would providing a double-clickable application be a better solution? >> >> 6) Do you need to support 10.4 systems? >> >> If you don't need a long running process (answer to 2 is no) then >> simply use a launch agent set to run in aqua sessions. Have this >> launch agent connect with your USB device and when needed show UI or >> launch a stand alone GUI. >> >> If you need a long running process then have that aspect of your >> product run as a launch daemon and pull out the UI related stuff into >> a launch agent or launch agent + separate GUI application (GUI app >> being started up by the launch agent). Then have the launch agent >> connect with the daemon when needed. >> >> Note launch agents are reliable on Mac OS X 10.5 (and later) but have >> issues on Mac OS X 10.4. You can work around some of the 10.4 issues >> depending on your needs however you likely will have to fallback on >> some legacy mechanism. >> >> From TN2083... >> >> WARNING: Prior to Mac OS X 10.5, launchd agents were not particularly >> useful because there was no way for the agent to specify the type of >> login session that the agent required (r. 4255854). Thus, you couldn't >> use a launchd agent as the equivalent of a global login item because >> it might be launched in the context of non-GUI login session. Mac OS X >> 10.5 has addressed this limitation, as described below. However, if >> you have to support older systems, you should investigate some of the >> alternative technologies described in Deprecated Daemonomicon [1]. >> >> [1] http://developer.apple.com/technotes/tn2005/tn2083.html#SECOLDDAEMONOMICON >> >> -Shawn >> > _______________________________________________ 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

1 0

ws_hash_line_clear and Kernel Panics
by Stephane Sudre 26 Jan '09

26 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com When you are hit by a kernel panic that states: tws_hash_line_clear: out of sync as defined in osfmk/vm/task_working_set.c. _______________________________________________ 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… Does it mean an issue with the Hard Drive for the VM (Disk Utility says the drive is fine), RAM (Apple Hardware Test says the RAM is fine) or code? This email sent to site_archiver(a)lists.apple.com

1 0

creating mac binaries by hand, on any platform
by Joel Reymont 26 Jan '09

26 Jan '09

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:from:to :content-type:content-transfer-encoding:mime-version:subject:date :x-mailer; bh=BYd63iYK/cq9NMIyOjoU2wkirLfRXzHBj3H2cNQBcNc=; b=KLLj3+emBbwAK1B/THhNu5xP+hZftC93xqGsLe9Oqju27HgIkpgA7dAhNB+UoaOA2e kDiJtkrN/5bSloQNp6WTRaPYJRX0gbtXhlhyRLEIkJD6WtHlCD+A56IVLg5q+5XpgFWh x/BrfPg5XFcvEDTlFSOThVSWyDPpjPn44bBbQ= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:content-type:content-transfer-encoding :mime-version:subject:date:x-mailer; b=mmSweYQXCWqMK4KH5SK0XIkmkxRDwrbqC6pwXUdFxiovcnJyf2ROtvTxG6FJ5ArKr1 Ptes0D0K2mm+Vz5O7Nl1qGyLtSe39BtTk3PmzGIEzG9/Dc+uBlnXRyFCRCBVZcGMMTCo +9i7anGgIlSpAm6kxqHjN04QcgF2SaA+Hv2fs= I thought I would document the results of my work on my blog: http://tinyco.de/2009/01/26/creating-mac-binaries-on-any-platform.html Enjoy and listen to Terry when he says you shouldn't do this! --- http://twitter.com/wagerlabs _______________________________________________ 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

1 0

Re: Why is virtual memory so high? (crash)
by Shawn Erickson 26 Jan '09

26 Jan '09

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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=k2ht/Yim+B9D9IJJr+GJF/rndsKBN9ostrLEJ5XD5UI=; b=sbMReMGV0CmhZoOkUNt7R2DhSw+iU1ggXqlYbC6XYlFhXDewbuQX3x8zfxVHoULbV3 yOxy8UU/JK4rjEAPKq8qNyQXevxgFYBSZlu5SaU4jzBaD8rbms808I/bKSHysk+pjoqy 2W02ApgrCJk5mKKyhIMyIFdu18yBqMfMGDXcc= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=Cl5mGmCdtocAmG3s3B0+YHFNotuNmIMLNNKraa/KK54kQG9UsKoe3BKSUp2KjGVPZ4 gtNbGy+kJ/GgbGGfR7QSOeGBfmDSYjaB7uR45dBJ36xll9iV9SPsolrYuiudlxnFJzvk C3L/3OPNSasp6KH5STsqtqBiIRe3X7lhQjSx0= On Mon, Jan 26, 2009 at 4:52 AM, Mario Emmenlauer <mario(a)emmenlauer.de> wrote: > I'm trying to find out why my application can use only ~2.8GB (instead > of the full 4GB for a 32bit app) on a 10GB Machine. Your applications virtual memory space is sprinkled with various mapping for shared libraries/files that your process uses. Additionally a few reserved ranges are also sprinkled thru-out the memory space. Then you have guard pages, thread stacks, and your own allocations (indirect or direct), file mappings, etc. As a result of the shared libraries and related mappings on current Mac OS X versions (when running as a 32b process) you will be lucky to get much more then 3.0 GiB worth of pages mapped (think the best I have seen with small allocations is 3.2) before exhausting the available virtual memory of your process and you will exhaust available _contiguous_ page ranges often earlier then 3.0 GiB (depends on the size of the allocations you are doing and the history of allocations in your application, aka VM fragmentation). It sounds like you are at the limit of what a 32b virtual memory space can handle. You either need to improve the logic of you code to reduce memory usage (many ways exist, from the simple change of logic to windowing) or switch your process to use 64b addressing. Also note on Window you (IIRC) still get a 3/1 split 3 GiB of virtual memory for your application and 1 GiB of virtual memory mapped for the kernel in your process ... unless you set the system to not do that. Also of that 3 GiB you will have a small part of it taken by mappings for dlls, etc. So if your windows version is living OK in a similarly constrained virtual memory situation you may simple be feeling the effects of a different memory profile of how the APIs of the two operating system work and/or exposing a "defect" in your code when running on the Mac. Note having a system with 10GiB of physical memory has no affect on the limits of a 32b virtual memory space. -Shawn _______________________________________________ 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

1 0

Re: Why is virtual memory so high? (crash)
by Mario Emmenlauer 26 Jan '09

26 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.18 (Macintosh/20081105) Hi, Thanks! I used vmmap, it claims ~600MB should be used by my process. Activity Monitor instead shows 1220MB virtual memory usage, twice as much. Who is right? Am I doing something wrong? Seems I'm stuck again. The 1.2GB that Activity Monitor shows are correct, since my application crashes after reserving 2.7GB real mem. vmmap instead (incorrectly?) claims only 600MB whould be used (which is still a lot for an idle GUI app with only 60MB real memory). I must be missing something! Now it became even more obscure: Suddenly my application uses only 600MB VMEM (without me actually changing anything). Both vmmap and Activity Monitor report ~600MB VMEM. On my coworkers Machine (100% identical), the problem persists. The App still uses ~1200MB VMEM according to Activity Monitor, but 600MB according to vmmap. vmmap even reports (almost) identical VMEM usage on both Machines. Shared memory is very low (~20MB). I'm pretty sure Activity Monitor is correct, because the App crashes exactly at the time when Activity Monitor reports 4GB VMEM usage. >>>> [...] >>>> I'm trying to find out why my application can use only ~2.8GB (instead of the full 4GB for a 32bit app) on a 10GB Machine. For some reason, the app consumes ~1.2GB VMEM for no apparent reason. I would not care, but customers complain a lot that 2/7th of memory gets waisted. The same code on Windows works flawless. Best regards, Mario _______________________________________________ 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… Eric Gouriou wrote: On Jan 21, 2009, at 9:45 PM, Justin C. Walker wrote: On Jan 21, 2009, at 02:57 , Mario Emmenlauer wrote: Justin C. Walker wrote: On Jan 20, 2009, at 08:43 , Mario Emmenlauer wrote: Shawn Erickson wrote: On Mon, Jan 19, 2009 at 1:18 AM, Mario Emmenlauer <mario(a)emmenlauer.de> wrote: I have a large C/C++ project with thousands of lines of code and many thirdparty-libraries. When it startes up, it reserves around 1.8GB of virtual memory (40MB real memory), and I don't know why. Are there better/other tools I could try to inspect where the additional vmem is reserved? vmmap The two could be using different algorithms to account for pages. Might be worth filing a bug report with examples. Try this: In Activity Monitor, select View->Columns->Shared Memory, and see what happens. Since I don't have the code for either vmmap or Activity Monitor (and since I would not want to spend any time wading into the Mach VM tar baby), I can't tell for sure what's going on, but I think the answer for you is that the two programs are telling you different things. Activity Monitor, top and vmmap all have slightly different heuristics for what they report. As I said, I'm not wading into the Mach VM code to grok what's going on there, but someone else may be able to shed some light. What problem are you trying to tackle here? You may be chasing chimaeras... This email sent to site_archiver(a)lists.apple.com

1 0

Re: Launch a user-process from daemon
by Rakesh Singhal 23 Jan '09

23 Jan '09

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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=TU8jUjAAB8FHHpb3BXS/Jm09UgA+fpL+hHToB5n3qC0=; b=H+hQm0jchh2LY10gYScn6Z+JajUzktcyNn/BzOPMcM/G5nSfzC4d/udY0obMdx4MOF N2NGww0TskXMCFjrZo87CczK9/1K903yWGL032JEoWdbExGl3ev09ZThdYLCY7i2VpHn 0/ANWlS9TDIIJxCX/2/Div9nPesXX+kTFnSrI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=qYlkSuwEAAReztVpL9BjZxsbnecfBHO0mxO0CbfhZhbOtBG/wEoXFsDqKyPl08QmeO w9BgipEYRS9o25npSrlOWpSxKJtOaYQgzXSu4hwHbuFhB+7dI0q7Jra3IUhQKh56pj9v Glt8INno5CdBgN/zoM178xxJDlLPC2MTKzTQo= Thanks a lot. I will try as per your suggestions. Regards rksinghal On Fri, Jan 23, 2009 at 3:35 AM, Shawn Erickson <shawnce(a)gmail.com> wrote: > The reason I am wanting to step back and understand what you are > trying to accomplish for your users it help ensure you are using an > implementation that is a good fit. > > Is what Philip stated below close to what you are trying to provide to > your users? > > "We have a USB device that needs to be detected when it is plugged in. > When it's first connected it will launch an application showing a > configuration window to the user -- but only if conditions Z, Y, and X > are met." > > If so I would ask the following additional questions... > > 1) What type of USB is this? What type of service is it providing to > the user? (give us a general idea) > > 2) Do you need some process to remain running as long as the USB > device is connected to the system? > 2a) If so what service is this process providing to the user? > 2b) Does this process need to interact (UI) with the user? > > 3) What service does the GUI application you have been talking about > provide to your users? > 3a) Does it have to run before they can use your USB device? > 3b) Does it only need to be run once to configure the USB device? > 3c) Could the user run when they needed/wanted? > > 4) Would providing a system preference plugin be a better solution? > > 5) Would providing a double-clickable application be a better solution? > > 6) Do you need to support 10.4 systems? > > If you don't need a long running process (answer to 2 is no) then > simply use a launch agent set to run in aqua sessions. Have this > launch agent connect with your USB device and when needed show UI or > launch a stand alone GUI. > > If you need a long running process then have that aspect of your > product run as a launch daemon and pull out the UI related stuff into > a launch agent or launch agent + separate GUI application (GUI app > being started up by the launch agent). Then have the launch agent > connect with the daemon when needed. > > Note launch agents are reliable on Mac OS X 10.5 (and later) but have > issues on Mac OS X 10.4. You can work around some of the 10.4 issues > depending on your needs however you likely will have to fallback on > some legacy mechanism. > > From TN2083... > > WARNING: Prior to Mac OS X 10.5, launchd agents were not particularly > useful because there was no way for the agent to specify the type of > login session that the agent required (r. 4255854). Thus, you couldn't > use a launchd agent as the equivalent of a global login item because > it might be launched in the context of non-GUI login session. Mac OS X > 10.5 has addressed this limitation, as described below. However, if > you have to support older systems, you should investigate some of the > alternative technologies described in Deprecated Daemonomicon [1]. > > [1] http://developer.apple.com/technotes/tn2005/tn2083.html#SECOLDDAEMONOMICON > > -Shawn > _______________________________________________ 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

1 0

Re: Launch a user-process from daemon
by Shawn Erickson 22 Jan '09

22 Jan '09

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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=aI+b3iie2ugSr364FQ1C1vSCeZWYiLsAi0Kk7sHGyo4=; b=NfoIVH+axvMjSPE+3SprmKXKvjkFxp2LWZWNxcz1wbR/5DK1jjJvEYYKYS2V5pjGBW kxU6+CGc39p03adHnJbdIZ5NCb3f36JJ80pJ07vxhQp/6WowiWbcPG5Ses5HX/C0IH70 JerUO7vfhARBKmw073pGEgyXhSeBnmzm2pn2U= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=vb/dc4TXOnsa+i8JEXTIMuQ8KqVCEYnEewS1fWxlwwulIdCGgmR0wd2NOb9W7g3OqU 5PwhUJWiqLlyDuoQ8LJXG5sZzaTfTLaf8Devo/wVFj7jSVzQp91/VSzFlAof2g3ikHig HxZ0kiEsdoX0obZfwN0ySDXWpFlpftn+DnlaU= The reason I am wanting to step back and understand what you are trying to accomplish for your users it help ensure you are using an implementation that is a good fit. Is what Philip stated below close to what you are trying to provide to your users? "We have a USB device that needs to be detected when it is plugged in. When it's first connected it will launch an application showing a configuration window to the user -- but only if conditions Z, Y, and X are met." If so I would ask the following additional questions... 1) What type of USB is this? What type of service is it providing to the user? (give us a general idea) 2) Do you need some process to remain running as long as the USB device is connected to the system? 2a) If so what service is this process providing to the user? 2b) Does this process need to interact (UI) with the user? 3) What service does the GUI application you have been talking about provide to your users? 3a) Does it have to run before they can use your USB device? 3b) Does it only need to be run once to configure the USB device? 3c) Could the user run when they needed/wanted? 4) Would providing a system preference plugin be a better solution? 5) Would providing a double-clickable application be a better solution? 6) Do you need to support 10.4 systems? If you don't need a long running process (answer to 2 is no) then simply use a launch agent set to run in aqua sessions. Have this launch agent connect with your USB device and when needed show UI or launch a stand alone GUI. If you need a long running process then have that aspect of your product run as a launch daemon and pull out the UI related stuff into a launch agent or launch agent + separate GUI application (GUI app being started up by the launch agent). Then have the launch agent connect with the daemon when needed. Note launch agents are reliable on Mac OS X 10.5 (and later) but have issues on Mac OS X 10.4. You can work around some of the 10.4 issues depending on your needs however you likely will have to fallback on some legacy mechanism. >From TN2083... WARNING: Prior to Mac OS X 10.5, launchd agents were not particularly useful because there was no way for the agent to specify the type of login session that the agent required (r. 4255854). Thus, you couldn't use a launchd agent as the equivalent of a global login item because it might be launched in the context of non-GUI login session. Mac OS X 10.5 has addressed this limitation, as described below. However, if you have to support older systems, you should investigate some of the alternative technologies described in Deprecated Daemonomicon [1]. [1] http://developer.apple.com/technotes/tn2005/tn2083.html#SECOLDDAEMONOMICON -Shawn _______________________________________________ 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

1 0

Re: Launch a user-process from daemon
by Steve Checkoway 22 Jan '09

22 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Jan 22, 2009, at 10:34 AM, Rakesh Singhal wrote: Thanks. I think now I will simplify the query. I try to launch one application from a daemon application and I am getting error -10810. -- Steve Checkoway "Anyone who says that the solution is to educate the users hasn't ever met an actual user." -- Bruce Schneier _______________________________________________ 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 You were already told that isn't supported and it doesn't answer Shawn's (and now Philip's) question at all. smime.p7s

1 0

Re: Launch a user-process from daemon
by Philip Aker 22 Jan '09

22 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 2009-01-22, at 10:34:05, Rakesh Singhal wrote: Thanks. I think now I will simplify the query. I try to launch one application from a daemon application and I am getting error -10810. Rakesh - ### // LaunchServices enum { kLSUnknownErr = -10810, /* Unexpected internal error*/ }; ### ps aex | grep smbd | wc -l 456 Turning off Windows file sharing did not release the processes, but: sudo killall -9 smbd seems to have cleared the situation up… ### % sysctl -a | grep maxproc kern.maxproc = 532 kern.maxprocperuid = 100 ### On 2009-01-21, at 11:47:02, Rakesh Singhal wrote: Hi Rakesh, Philip Aker echo astwta@lvpc.dslh@nl | tr a-z@. p-za-o.@ Democracy: Two wolves and a sheep voting on lunch. _______________________________________________ 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… That's not what I wanted to hear. Don't talk of daemons. Talk of what happens for your user when this secret device is plugged in. <http://forums.macosxhints.com/archive/index.php/t-57456.html> OK, I think I may have found the cuprit, looking at my post a bit more I wondered why I had 529 processes running, turns out I had a stack of smbd processes: I think you were probably running into the limits on the number of processes: <http://www.google.com/search?q=error+10810&btnmeta%3Dsearch%3Dmac=Search+Ma… > Regards On Thu, Jan 22, 2009 at 4:51 PM, Philip Aker <philip.aker(a)shaw.ca> wrote: Currently I have one daemon app. I want to launch a GUI from daemon, when it gets device plugged-in notification. I observed following things while working on 10.4.11 ppc only using daemon (not agent): 1. The daemon launches the GUI on 10.4.11 ppc when I start the system. Now if I log out and logs in and plug-in device again then it gives error -10810. I could not understand that why does this error come and how to resolve this. 2. If I first log in as root user and daemon launches the GUI. Now I close the GUI and switch to another user. Now if daemon launches the GUI then it gets launched in root user, not in current user. It shows same behavior with all users. I have written an agent app also. If I use agent also with daemon then also it does not solve any of above problems. I hope, it is clear now. As a casual reader, it's not clear. You are describing things in terms of _ what methods and tools _ you want to accomplish some goal. But Shawn asked: Also can you state what you are trying to achieve at a high level. To answer that question, you might say something like: "We have a USB device that needs to be detected when it is plugged in. When it's first connected it will launch an application showing a configuration window to the user -- but only if conditions Z, Y, and X are met." This email sent to site_archiver(a)lists.apple.com

1 0

Re: Launch a user-process from daemon
by Rakesh Singhal 22 Jan '09

22 Jan '09

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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=p4Emc21yL8Ah2jl+xL54WvNpasiaBTQK5NkXXyqHV94=; b=gJM7/lepiJwWOe2E2F06JkNWHSSZ9pyr4dlBJlynngA25Ry40nEE79DWlXsN9uscIH hm+qtoNooqnDgFk/GF3iyew0SGyYMg8SRmS71oR/0v6yiCgsWqmxBhZp6Ewc4nRc82Qb Xmq1dOolgPLfzDKFttsVdSqY5/RJSHsmKjkI4= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=UW7qZB+qRkYkhgbt1EMkkL4n0ZHK1KXYCaCQL/dyfM/OY0wFgukPaiHqpWdCzHBThF CVRlDNeAx5G7SsuzElLLn5YqFbM1VLUtf9c9UboNAqrOCdAXzxvCpgvrH06HPDbe3wom Ou8UJU5VDLu6fs4qM7oWF6KwHaXQVCBlZIcq4= Thanks. I think now I will simplify the query. I try to launch one application from a daemon application and I am getting error -10810. Regards On Thu, Jan 22, 2009 at 4:51 PM, Philip Aker <philip.aker(a)shaw.ca> wrote: > On 2009-01-21, at 11:47:02, Rakesh Singhal wrote: > >> Currently I have one daemon app. I want to launch a GUI from daemon, when >> it gets device plugged-in notification. I observed following things while >> working on 10.4.11 ppc only using daemon (not agent): > >> 1. The daemon launches the GUI on 10.4.11 ppc when I start the system. Now >> if I log out and logs in and plug-in device again then it gives error >> -10810. I could not understand that why does this error come and how to >> resolve this. > >> 2. If I first log in as root user and daemon launches the GUI. Now I close >> the GUI and switch to another user. Now if daemon launches the GUI then it >> gets launched in root user, not in current user. It shows same behavior with >> all users. > >> I have written an agent app also. If I use agent also with daemon then >> also it does not solve any of above problems. > >> I hope, it is clear now. > > Hi Rakesh, > > As a casual reader, it's not clear. You are describing things in terms of _ > what methods and tools _ you want to accomplish some goal. But Shawn asked: > >>> Also can you state what you are trying to achieve at a high level. > > > To answer that question, you might say something like: "We have a USB device > that needs to be detected when it is plugged in. When it's first connected > it will launch an application showing a configuration window to the user -- > but only if conditions Z, Y, and X are met." > > >> On Thu, Jan 22, 2009 at 1:07 AM, Shawn Erickson <shawnce(a)gmail.com> wrote: > >>>> Thanks. Yes, you are right and I know it is not supported and I have >>>> written the agent to launch GUI. But this agents gets terminated when >>>> logs out, so this will not resolve the issue of getting error -10810. >>> > >>> It isn't clear exactly what your current implementation is... Can you >>> restate what you have at the moment? >>> > >>> Also can you state what you are trying to achieve at a high level. >>> > > Philip Aker > echo astwta@lvpc.dslh@nl | tr a-z@. p-za-o.@ > > Democracy: Two wolves and a sheep voting on lunch. > > _______________________________________________ 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

1 0