November 2005 - Darwin-dev - lists.apple.com

Re: catching EXC_BAD_ACCESS?
by Jonas Maebe 21 Nov '05

21 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 31 okt 2005, at 02:50, Brad Parker wrote: Jonas _______________________________________________ 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 also, believe it or not, want to catch EXC_ARITHMETIC, which doesn't seem to get mapped to SIGFPE) At least on Mac OS X, the init code of libc doesn't turn on (or possibly explicitly turns off) all FPU exceptions. If you turn them on, you can catch SIGFPE's as much as you like. Especially when you have a GUI program and turn on "invalid fpu operation" exceptions, since there's a bug in CoreGraphics since 10.4.0 that triggers this exception on some systems when drawing certain font ligatures (there's a radar on this somewhere, but not by me since it doesn't happen on my systems). This email sent to site_archiver(a)lists.apple.com

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Re: How to find out if running on new dual core G5
by plumber Idraulico 19 Nov '05

19 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Another link that may be of interest: http://www.cocoadev.com/index.pl?HowToGetHardwareAndNetworkInfo sometimes we have differents names but we are the same :D _______________________________________________ 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… Andre This email sent to site_archiver(a)lists.apple.com

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Re: How to find out if running on new dual core G5
by André-John Mas 19 Nov '05

19 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Another link that may be of interest: http://www.cocoadev.com/index.pl?HowToGetHardwareAndNetworkInfo Andre _______________________________________________ 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: How to find out if running on new dual core G5
by plumber 18 Nov '05

18 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com -- BEGIN machine_info.c -- #include <mach/mach.h> #include <mach/machine.h> #include <mach/mach_host.h> #include <mach/host_info.h> #import <Carbon/Carbon.h> unsigned int countProcessors() { host_basic_info_data_t hostInfo; mach_msg_type_number_t infoCount; infoCount = HOST_BASIC_INFO_COUNT; host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount); return (unsigned int)(hostInfo.max_cpus); } unsigned int isPowerPC() { host_basic_info_data_t hostInfo; mach_msg_type_number_t infoCount; infoCount = HOST_BASIC_INFO_COUNT; kern_return_t ret = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount); return ( (KERN_SUCCESS == ret) && (hostInfo.cpu_type == CPU_TYPE_POWERPC) ); } unsigned int isG3() { host_basic_info_data_t hostInfo; mach_msg_type_number_t infoCount; infoCount = HOST_BASIC_INFO_COUNT; kern_return_t ret = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount); return ( (KERN_SUCCESS == ret) && (hostInfo.cpu_type == CPU_TYPE_POWERPC) && (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_750) ); } unsigned int isG4() { host_basic_info_data_t hostInfo; mach_msg_type_number_t infoCount; infoCount = HOST_BASIC_INFO_COUNT; kern_return_t ret = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount); return ( (KERN_SUCCESS == ret) && (hostInfo.cpu_type == CPU_TYPE_POWERPC) && (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_7400 || hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_7450)); } unsigned int isG5() { host_basic_info_data_t hostInfo; mach_msg_type_number_t infoCount; infoCount = HOST_BASIC_INFO_COUNT; kern_return_t ret = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount); return ( (KERN_SUCCESS == ret) && (hostInfo.cpu_type == CPU_TYPE_POWERPC) && (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970)); } unsigned long procSpeed() { OSErr err; long result; err=Gestalt(gestaltProcClkSpeed,&result); if (err!=nil) return 0; else return result; } unsigned int procSpeedMHz() { return (unsigned int)procSpeed(); } int main(int argc, char *argv[]) { printf("procSpeedMHz : %i MHz\n",procSpeedMHz()/1000000); printf("countProcessors : %i\n",countProcessors()); printf("isPowerPC : %i\n",isPowerPC()); printf("isG3 : %i\n",isG3()); printf("isG4 : %i\n",isG4()); printf("isG5 : %i\n",isG5()); return 1; } -- END machine_info.c -- gcc machine_info.c -o machine_info -framework Carbon ./machine_info procSpeedMHz : 933 MHz countProcessors : 1 isPowerPC : 1 isG3 : 0 isG4 : 1 isG5 : 0 Best Regards _______________________________________________ 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: How to find out if running on new dual core G5
by Martin Bestmann 18 Nov '05

18 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 18.11.2005, at 19:06, Shawn Erickson wrote: On 11/18/05, Martin Bestmann <martin(a)poleposition-sw.com> wrote: Hi, I like to know how I can find out programmatically if I'm running on a dual core G5. For what purpose? You want to know how many CPUs are available? Or if on the specific machine? Or revision of the machine? etc. Thanks, _______________________________________________ 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… Need this for our network management app LANrev to give administrators info if client machine is a dual core G5. So I need this info for inventory purpose. The should be something about it in the registry or somewhere else. Martin _______________________________________________________ Martin Bestmann Pole Position Software GmbH Phone: +49-9134-9942-0 Weingasse 26 Fax: +49-9134-997911 91077 Neunkirchen am Brand e-mail:martin@poleposition-sw.com Germany Web: http://www.poleposition-sw.com This email sent to site_archiver(a)lists.apple.com

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Re: How to find out if running on new dual core G5
by Dave Zarzycki 18 Nov '05

18 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The following sysctl variables will probably be useful to you then: davez On Nov 18, 2005, at 10:03 AM, Martin Bestmann wrote: Hi, Thanks, 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/zarzycki%40apple.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… * hw.ncpu - The maximum number of processors that could be available this boot. * Use this value for sizing of static per processor arrays; i.e. processor load statistics. * * hw.activecpu - The number of processors currently available for executing threads. * Use this number to determine the number threads to create in SMP aware applications. * This number can change when power management modes are changed. * * hw.physicalcpu - The number of physical processors available in the current power management mode. * hw.physicalcpu_max - The maximum number of physical processors that could be available this boot * * hw.logicalcpu - The number of logical processors available in the current power management mode. * hw.logicalcpu_max - The maximum number of logical processors that could be available this boot I like to know how I can find out programmatically if I'm running on a dual core G5. This email sent to zarzycki(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: How to find out if running on new dual core G5
by Shawn Erickson 18 Nov '05

18 Nov '05

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:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=kRXV0g1N3R5eOCqcyC8ztLeSPWHub+nuiaGeIDbQ3FFTAOXyAyk36lSs99nhjyQ/i1qk22RM2ExepN7SigXKshrC4rM3b7oU3j+4J3tA4xsrGGg1YT0z63Xs6OluoTuDll8iYQE/CJZ7uq3E2tAa49otl9NZfE5+8VGMHdFSyyo= On 11/18/05, Martin Bestmann <martin(a)poleposition-sw.com> wrote: > Hi, > > I like to know how I can find out programmatically if I'm running on > a dual core G5. For what purpose? You want to know how many CPUs are available? Or if on the specific machine? Or revision of the machine? etc. -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

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How to find out if running on new dual core G5
by Martin Bestmann 18 Nov '05

18 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, Thanks, 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… I like to know how I can find out programmatically if I'm running on a dual core G5. This email sent to site_archiver(a)lists.apple.com

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custom runloop notification- which approach to take?
by Philip Lukidis 18 Nov '05

18 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hopefully this is not OT. If so, my apologies. I have to implement a shared library (within a framework). The bottom edge of the shared library will communicate with a daemon via local sockets (thanks to the list for helping me find a sample of this). However, I will be required to notify the client of the shared library of interesting events (changes in hardware, departure of hardware, etc). Within Windows, I might have used custom messages to be send to a window procedure. However, I'm not sure at all what would be the best way to proceed here with OSX. The simplest thing would be for the client of the shared library to send a callback function, which I could invoke. But that's a bit bare bones, and so I'm also looking into adding a custom source to a runloop, which would result in a callback function being invoked. I'm just not sure which way would be best for my needs. It seems that CFMessagePort would serve, but there is also CFMachPort, and I don't know which is preferable. Concerning CFMachPort, there is no CF interface for sending data to a port- the CFMachPort doc says "To send data, you must use the Mach APIs with the native Mach port, which is not described here." So where can I find this documentation? I might cringe a bit if I should be forced to use native mach APIs, because I'm not sure they would remain unchanged across OS upgrades (perhaps this is an unreasonable fear, but I'm fairly new to OSX). Any thoughts? Are mach ports the way to go for this functionality, and, if so, where might I find some mach API documentation for sending to a port? If mach ports are not the way to go, what would be? (CFMessagePort for example). I would like to stick to CF types, as I don't know right now what type of application will be using the shared library (I understand that CF types can be used by Carbon and Cocoa). thanks for any insight, Philip Lukidis _______________________________________________ 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: IPC between daemon -> non root app?
by Philip Lukidis 15 Nov '05

15 Nov '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thanks for links, the CFLocalServer example is a great starting point. Philip Lukidis > -----Original Message----- > From: plumber [mailto:plumber@gnu-darwin.org] > Sent: Tuesday, November 15, 2005 12:02 PM > To: Darwin development list > Subject: Re: IPC between daemon -> non root app? > > > >> > > Thanks for your answer. > > > > I never intentionally initiated communication from the daemon to > > the user > > app. The CFMessagePort was setup as a direct result of a specific > > request > > from the user app. This, at first sight at least, > communication is > > always > > initiated by the client user app. However, I do admit that > I need the > > daemon to notify the user app of interesting changes if the user > > app so > > requested, like hardware plug/unplug events, change in the > hardware > > state, > > etc. I thought that a client request CFMessagePort would be the > > answer. > > Given my need of the daemon having to notify a "registered" user > > app of > > interesting events, how should I best proceed? If no user is > > logged on, > > then the user app will never request to be notified of interesting > > events. > > Each instance of the user app may request a new port to be > setup, so I > > assume this should take of multiple users. > > > > Would the CFNotificationCenter type suit my needs? Or am I going > > in the > > wrong direction entirely? > > > > thanks, > > > > Philip Lukidis > > > Would CFNotificationCenter work? Or CFSocket? I'll read up about > > these > > types. > > > > thanks, > > > > Philip Lukidis > > CFSocket > > http://developer.apple.com/samplecode/CFLocalServer/CFLocalServer.html > > CFNotificationCenter > > http://lists.apple.com/archives/Cocoa-dev/2003/Jan/msg01994.html > > Best Regards > > _______________________________________________ > 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/plukidis%40g uillemot.com This email sent to plukidis(a)guillemot.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

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