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

Re: Talking to MySQL from C
by Matt Hoffman 25 Jul '05

25 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com http://dev.mysql.com/doc/mysql/en/c.html -matt On Jul 25, 2005, at 2:25 PM, Mark Gilbert wrote: Folks. Thanks This email sent to mhoffman(a)cs.washington.edu _______________________________________________ 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… There's also a link to mysql++, a library for communication using C++ (if that happens to be your thing). I am trying to write a very simple database client application in C which will connect to a MySQL server on OSXServer. Seems like most people communicate with MySQL via PHP, but I basically want to make a very simple 'list' of database entries in C. Multiple client stations would be able to add records and view records from different Macs, all sharing the one central MySQL server database. Sounds pretty simple, right ? I am probably missing something totally obvious, but how does one actually communicate with a MySQL server ? Is it just 'chat' on a Socket ? If so, where can I find the socket protocol ? I already use TCP sockets to communicate between my own apps on different machines. Could anyone point me to some *really* simple C source code to connect to, and run a simple query on a remote MySQL Server ? Mark Gilbert. -- mark(a)gallery.co.uk Tel: +44 208 340 5677 fax: +44 870 055 7790 http://www.gallery.co.uk New Product ! - Zen MetaCorder Location Sound Field Recorder http://www.metacorder.info _______________________________________________ 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/mhoffman% 40cs.washington.edu This email sent to site_archiver(a)lists.apple.com

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Talking to MySQL from C
by Mark Gilbert 25 Jul '05

25 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Folks. Thanks Mark Gilbert. -- mark(a)gallery.co.uk Tel: +44 208 340 5677 fax: +44 870 055 7790 http://www.gallery.co.uk New Product ! - Zen MetaCorder Location Sound Field Recorder http://www.metacorder.info _______________________________________________ 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 am trying to write a very simple database client application in C which will connect to a MySQL server on OSXServer. Seems like most people communicate with MySQL via PHP, but I basically want to make a very simple 'list' of database entries in C. Multiple client stations would be able to add records and view records from different Macs, all sharing the one central MySQL server database. Sounds pretty simple, right ? I am probably missing something totally obvious, but how does one actually communicate with a MySQL server ? Is it just 'chat' on a Socket ? If so, where can I find the socket protocol ? I already use TCP sockets to communicate between my own apps on different machines. Could anyone point me to some *really* simple C source code to connect to, and run a simple query on a remote MySQL Server ? This email sent to site_archiver(a)lists.apple.com

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Re: how changing loginwindow in mac osX ?
by Vincent WYON 25 Jul '05

25 Jul '05

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… This email sent to site_archiver(a)lists.apple.com

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Re: Complex dynamic loading
by Jordan K. Hubbard 23 Jul '05

23 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com - Jordan On Jul 23, 2005, at 6:33 AM, plumber wrote: under darwin 7 -> dlcompat src project under darwin 8 -> libSystem _______________________________________________ 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 _______________________________________________ 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… To be more specific: In releases previous, dyld provided a specialized interface for doing this (dyld_NSAddImage() and friends) and if you wanted to use the more common "UNIX dlopen() API" then you used Peter O'Gorman's dlcompat library, which we also bundled with the system in Panther. In Tiger, dyld was substantially rewritten and the dlopen() APIs became "native" - no translation layer, no dlcompat(), and in fact dyld_NSAddImage() is now deprecated in favor of dlopen(). This email sent to site_archiver(a)lists.apple.com

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Re: Complex dynamic loading
by Solra Bizna 23 Jul '05

23 Jul '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:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=NvUjDOKtm2lPh2qA64mDCIwvCEBm2k/H23EH5pAxXzUBVUnGY74K+WePgEBllE1cPdFRt5y38ATCKWHAgKlL6gJ5EwaFaeI0czmrO+Rbpd6DdtBjEPw9vSmbYVQX07QRc8u/uzkyswidBFR4Av1DKBUDz45DHfU1Ibydr6Ci2PE= This answered all of my questions, I think. Thanks. -:sigma.SB _______________________________________________ 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: Screenshot of console?
by Dan Bernstein 23 Jul '05

23 Jul '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:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=RI95MI3tWRWM9UmZ9SpBCndDnmVnTu5iyr+HLP6dgw+lLGHBuU7UdDs2ba4YyAZjUyG0bSIEW+pfoTKgOjBfL5H+msJkeyYXdjgGtXlD/gRW7gjabJNV7oRrPIZJsENbjntHch8wE2gy1DB1h2hwZb6Sr3q6LtPKt0MwIUIeAUI= On 7/20/05, Peter Seebach <seebs(a)plethora.net> wrote: > In message <70482489-BDDE-4590-AA97-F9BDFCE86D64(a)middle--earth.org>, Chris Zubr > zycki writes: > >I think he just wants the kernel bitmap font. > > Hmm. Come to think of it, that'd work. I am sure I could find some way > to use it to hack up a screenshot. I think you'll find it in <http://darwinsource.opendarwin.org/10.4.2/xnu-792.2.4/osfmk/console/iso_fon…>. _______________________________________________ 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: Complex dynamic loading
by Peter O'Gorman 23 Jul '05

23 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla Thunderbird 1.0.2 (Macintosh/20050317) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 plumber wrote: | under darwin 7 -> dlcompat src project | | under darwin 8 -> libSystem What the hell is this supposed to mean? Peter -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (Darwin) iQCVAwUBQuJSALiDAg3OZTLPAQIGhQP/S7SDnb71GFM2d1er3ImVPv94QeGFnEcn nY5L017eiXD7HJiqo4B4/vLXjT1I9HFBGpPIaQ+R38l6Ijp75nVL5h2RjMsyOKrf lnBeY4niZFbynUwtUP+sn7llonFbyjuPPpX2wziKE8hausbcoHRXKBUjszBuYXct WtC9PN+oOR0= =SzjQ -----END PGP SIGNATURE----- _______________________________________________ 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: Complex dynamic loading
by Peter O'Gorman 23 Jul '05

23 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla Thunderbird 1.0.2 (Macintosh/20050317) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Solra Bizna wrote: | I was under the impression that this wasn't possible on Darwin. From | what I understand, you can either create a module which you can | dynamically load (.bundle) or one which you can dynamically link | (.dylib), but not both. Is it possible after all? | Also, will Darwin properly deal with modules that are both dynamically | linked against other modules and dynamically loaded? On all versions of darwin so far, it is suggested that code which is designed to be runtime loaded be linked with the -bundle option to cc (ld). If, however, you are in a situation where the code must be used as input to ld(1) and must also be runtime loaded, then it is okay on Mac OS X 10.1 and later to use dylibs. There is no api to load dylibs on Mac OS X 10.0.x and 10.4 does the job much better than previous attempts. There is a bug somewhere asking for reference counting of loaded dylibs which will allow for dynamic shared libraries to be unloaded, at present only bundles may be unloaded. This is not usually a big issue, but it depends on your app. Hope this helps, Peter -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (Darwin) iQCVAwUBQuJR9biDAg3OZTLPAQIXXAP+OHM5SKRxjCSXhXCYaLGNL8EO8QFYDu84 I6DpYxE8pwSh/4JtXj5tCzkdqv6DlzcPQByYUVvS8S6czSW7pb784DPNkgWN8PvC m8ezbQ+v/jhTD1ZgEJAfxBgEfBBI7IE1495RH5//wShc0eln5eONM3SLJNvmqD1q RkAt6mexMbE= =X6+h -----END PGP SIGNATURE----- _______________________________________________ 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: Complex dynamic loading
by plumber 23 Jul '05

23 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com under darwin 7 -> dlcompat src project under darwin 8 -> libSystem _______________________________________________ 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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TH_STATE_UNINTERRUPTIBLE
by Steve Checkoway 23 Jul '05

23 Jul '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I have one computer (dual G4) that exhibits some very strange behavior. Something will happen and any process which accesses 2 of my 4 hard drives will freeze. When this happens, the processes are unkillable and ps shows 'U' for their state. It seems that these processes have the state TH_STATE_UNINTERRUPTIBLE. Once this starts, I can cause any process that reads the disk to become stuck, simply by reading whichever of the two drives caused it this time. At first, I thought that it was a problem with my IDE card since it would only happen with the drives connected to the card (I could change the drives around and it'd still only be the ones connected to the card). I bought two firewire enclosures and put two of the drives in there. I still get the same behavior. Since this happens with any of my drives, I'm tempted to think that it is not an issue with the drives. Is this a known bug? Is there a workaround? I'm currently not in the same state as the G4 so I can't test the drives with my G5 to see if it exhibits the same behavior, but I will do that when I get back. - Steve _______________________________________________ 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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