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

Re: Apple IMail and Citadel.org IMAP server
by Sebastian Hagedorn 05 May '08

05 May '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I don't know whether this is the correct location, if not i'd be glad if s.b. could point me there. I've users on my Citadel IMAP server who are using Apple IMail. <http://www.washington.edu/imap/lists/imap-use.html> -- .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:. Zentrum für angewandte Informatik - Universitätsweiter Service RRZK .:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:. .:.:.:.Skype: shagedorn.:.:.:. _______________________________________________ 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 --On 4. Mai 2008 17:19:44 -0400 dothebart <dothebart(a)uncensored.citadel.org> wrote: Their imap sessions time out while its polling the directory structure. As an alternative to a bugreport (as it isn't clear if there's really a bug in Apple Mail), you could try this list: pgpbU9hDmvH4j.pgp

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Re: Apple IMail and Citadel.org IMAP server
by Jonas Maebe 04 May '08

04 May '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 04 May 2008, at 23:19, dothebart 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 don't know whether this is the correct location, if not i'd be glad if s.b. could point me there. I've users on my Citadel IMAP server who are using Apple IMail. The correct location is https://bugreport.apple.com (where you can submit bugs after registering for a free developer account at https://connect.apple.com) This email sent to site_archiver(a)lists.apple.com

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Apple IMail and Citadel.org IMAP server
by dothebart 04 May '08

04 May '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Organization: Uncensored _______________________________________________ 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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Missing Pieces of Darwin 9.x
by Daniel G. Kluge 04 May '08

04 May '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com gssd: Neither tarball nor other extracted version available. AppleUSBIrDA : Same as above Anybody able to comment on the missing sources? Cheers, -daniel _______________________________________________ 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… Hello there, I just downloaded the Darwin source (using the tarballs), and found some oddities and missing components: OpenAL : The tarball is not named after the Darwin version, and hosted on openal.org, any particular reason? security_certificates: No tarball available, only individual files, can someone tar that up? This email sent to site_archiver(a)lists.apple.com

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Re: mach_absolute_time() vs. sleep() [solved]
by Kristopher Matthews 01 May '08

01 May '08

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com conversion = info.denom / 1e9 * info.numer; and Steve's said On May 1, 2008, at 3:55 PM, Steve Checkoway wrote: Kristopher Matthews wrote: > conversion = 1e9 * info.numer / info.denom; #include <mach/mach_time.h> #include <stdint.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> static double mach_elapsed_time( uint64_t start, uint64_t end ) { static double conversion = 0.; if( conversion == 0. ) { mach_timebase_info_data_t info; mach_timebase_info( &info ); conversion = info.numer / (1e9 * info.denom); } return (end - start)*conversion; } int main( int argc, const char *argv[] ) { uint64_t start = mach_absolute_time(); uint64_t end; int sleepTime = argc == 2? atoi(argv[1]):3; sleep( sleepTime ); end = mach_absolute_time(); printf( "%f seconds\n", mach_elapsed_time(start, end) ); return 0; } -- Steve Checkoway _______________________________________________ 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/kmmx%40mac.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 Okay, this is the last time I'm saying anything on this. But Steve is correct, my posted code is wrong. My code said: conversion = info.numer / (1e9 * info.denom); Mine only works by chance because info.numer == info.denom == 1 (for my particular system anyway, YMMV). conversion = info.denom / 1e9 * info.numer; Now you're multiplying the numerator and the denominator and dividing by 1000000000. Before, you were multiplying the numerator by 1e9 and dividing by the denominator. > conversion = 1e-9 * (double) info.numer / (double) info.denom; } Before that, you were dividing the numerator by (the denominator * 1e9). Think about what units you want here. Your mach_elapsed_time() is returning a value in seconds. mach_absolute_time() gives you a time in units of mt (mach time, a unit I just made up). You can consider info.numer as having units of ns--nanoseconds--and info.denom as having units of mt. Since you want seconds in the end, your conversion had better have units of s/mt. So let's consider the three cases above: 1. info.denom / 1e9 * info.numer has units of mt * ns / 1e9 = mt * s. 2. 1e9 * info.numer / info.denom has units of 1e9 * ns / mt = as / mt (that is attoseconds per mach time or 10^-18 seconds per mach time) 3. 1e-9 * info.numer / info.denom has units of 1e-9 * ns / mt = s/mt. Your original (i.e., number 3) was correct. I'm not sure exactly what Terry was talking about when he was saying you were making mistakes. The following code is a complete working example. The numbers I get are pretty close to being the number of seconds asleep. I just checked the link you gave and it almost exactly the same as this except that info.numer is being multiplied by 1e-9 before being divided by info.denom. This email sent to kmmx(a)mac.com smime.p7s

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Re: mach_absolute_time() vs. sleep() [solved]
by Kristopher Matthews 01 May '08

01 May '08

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Thank you. --Kris On May 1, 2008, at 3:55 PM, Steve Checkoway wrote: Kristopher Matthews wrote: > conversion = 1e9 * info.numer / info.denom; #include <mach/mach_time.h> #include <stdint.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> static double mach_elapsed_time( uint64_t start, uint64_t end ) { static double conversion = 0.; if( conversion == 0. ) { mach_timebase_info_data_t info; mach_timebase_info( &info ); conversion = info.numer / (1e9 * info.denom); } return (end - start)*conversion; } int main( int argc, const char *argv[] ) { uint64_t start = mach_absolute_time(); uint64_t end; int sleepTime = argc == 2? atoi(argv[1]):3; sleep( sleepTime ); end = mach_absolute_time(); printf( "%f seconds\n", mach_elapsed_time(start, end) ); return 0; } -- Steve Checkoway _______________________________________________ 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/kmmx%40mac.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 Can anyone point me to any documentation for mach_timebase_info() and/ or mach_absolute_time() ? I've googled, I've searched help in Xcode, and I've tried man pages. conversion = info.denom / 1e9 * info.numer; Now you're multiplying the numerator and the denominator and dividing by 1000000000. Before, you were multiplying the numerator by 1e9 and dividing by the denominator. > conversion = 1e-9 * (double) info.numer / (double) info.denom; } Before that, you were dividing the numerator by (the denominator * 1e9). Think about what units you want here. Your mach_elapsed_time() is returning a value in seconds. mach_absolute_time() gives you a time in units of mt (mach time, a unit I just made up). You can consider info.numer as having units of ns--nanoseconds--and info.denom as having units of mt. Since you want seconds in the end, your conversion had better have units of s/mt. So let's consider the three cases above: 1. info.denom / 1e9 * info.numer has units of mt * ns / 1e9 = mt * s. 2. 1e9 * info.numer / info.denom has units of 1e9 * ns / mt = as / mt (that is attoseconds per mach time or 10^-18 seconds per mach time) 3. 1e-9 * info.numer / info.denom has units of 1e-9 * ns / mt = s/mt. Your original (i.e., number 3) was correct. I'm not sure exactly what Terry was talking about when he was saying you were making mistakes. The following code is a complete working example. The numbers I get are pretty close to being the number of seconds asleep. I just checked the link you gave and it almost exactly the same as this except that info.numer is being multiplied by 1e-9 before being divided by info.denom. This email sent to kmmx(a)mac.com smime.p7s

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Re: mach_absolute_time() vs. sleep() [solved]
by Steve Checkoway 01 May '08

01 May '08

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.12 (X11/20080213) Kristopher Matthews wrote: > conversion = 1e9 * info.numer / info.denom; > conversion = 1e-9 * (double) info.numer / (double) info.denom; } Before that, you were dividing the numerator by (the denominator * 1e9). #include <mach/mach_time.h> #include <stdint.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> static double mach_elapsed_time( uint64_t start, uint64_t end ) { static double conversion = 0.; if( conversion == 0. ) { mach_timebase_info_data_t info; mach_timebase_info( &info ); conversion = info.numer / (1e9 * info.denom); } return (end - start)*conversion; } int main( int argc, const char *argv[] ) { uint64_t start = mach_absolute_time(); uint64_t end; int sleepTime = argc == 2? atoi(argv[1]):3; sleep( sleepTime ); end = mach_absolute_time(); printf( "%f seconds\n", mach_elapsed_time(start, end) ); return 0; } -- Steve Checkoway _______________________________________________ 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… conversion = info.denom / 1e9 * info.numer; Now you're multiplying the numerator and the denominator and dividing by 1000000000. Before, you were multiplying the numerator by 1e9 and dividing by the denominator. Think about what units you want here. Your mach_elapsed_time() is returning a value in seconds. mach_absolute_time() gives you a time in units of mt (mach time, a unit I just made up). You can consider info.numer as having units of ns--nanoseconds--and info.denom as having units of mt. Since you want seconds in the end, your conversion had better have units of s/mt. So let's consider the three cases above: 1. info.denom / 1e9 * info.numer has units of mt * ns / 1e9 = mt * s. 2. 1e9 * info.numer / info.denom has units of 1e9 * ns / mt = as / mt (that is attoseconds per mach time or 10^-18 seconds per mach time) 3. 1e-9 * info.numer / info.denom has units of 1e-9 * ns / mt = s/mt. Your original (i.e., number 3) was correct. I'm not sure exactly what Terry was talking about when he was saying you were making mistakes. The following code is a complete working example. The numbers I get are pretty close to being the number of seconds asleep. I just checked the link you gave and it almost exactly the same as this except that info.numer is being multiplied by 1e-9 before being divided by info.denom. This email sent to site_archiver(a)lists.apple.com

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