March 2008 - openSUSE Programming - openSUSE Mailing Lists

[opensuse-programming] expanding const struct
by Wolfgang Rosenauer 19 Mar '08

19 Mar '08

Hi, sometimes I'm really impressed how bad my basic programming skills are :-(. I mean basically I know _a_ solution to the issue but I would like to get a pointer to the "best" solution. You'll find my simple example attached. Please note that I'm aware that this doesn't need to be nor is actually "real" C++ code. Take the struct and the const initialization of kProperties as given and not easily changeable. I just want to create a new array of PropertyPair which holds one more pair and use that later on. So one thing would be to allocate memory as needed by the const part and the additional part and copy both into that memory but I'm wondering if there is an easier/better way to achieve that. The resulting PropertyPair array could be const again if needed. Any hints for me? Thanks. Wolfgang

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[opensuse-programming] How do you initialise a static table with external function pointers?
by Per Jessen 16 Mar '08

16 Mar '08

I've got some code that looks roughly like this: (global scope) : static struct action process_table[] = { { 0, process2_250 }, { 1, process2_550 }, . . . }; process2_250 and process2_550 are external references, but intended to be resolved at link time, not load time. When I compile I get "error: initializer element is not constant". Can this be made to work? /Per Jessen, Zürich --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] Help with setting Default Connect Timeouts on Sockets...
by Greg Freemyer 15 Mar '08

15 Mar '08

Resend to correct list this time. On Sat, Mar 15, 2008 at 9:50 AM, Rogers, Larry <lrogers(a)foster-miller.com> wrote: > Sorry, this is a repeat from several days ago. Still no answer, so I > figured I would try posting it again in hopes someone might know. Tx. > > I have an app that uses a canned socket library. The library just uses > connect when it attempts a connection to a socket. If the host is not > there, the timeout is up to 2 minutes. The app I am working on will > only run on a local isolated network, so it does not have any need for a > long timeout. > > I cannot recode the library and require it due to shared resource > constraints, so would like to turn down this default to a much smaller > value. > > I have looked through the documentation and searched help, but I can > find nothing there on the matter. I did find something from 2001 on > syncookies, but am not sure that applies anymore. > > If anyone knows how to turn down the "default" time-out on OpenSuse or > other linux boxes, your help would be greatly appreciated. > > Thanks. As a guess, look at /sys (or /sysfs, which is the official name of the filesystem typically mounted at /sys). I would also look for documentation in the kernel source tree. You should find a directory full of documentation. If that doesn't help try asking on netdev(a)vger.kernel.org. You should not have to subscribe, just e-mail away. They have great spam filters on the various linux kernel lists so they let anyone who wants post. Greg -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] Help with setting Default Connect Timeouts on Sockets...
by Rogers, Larry 15 Mar '08

15 Mar '08

I have an app that uses a canned socket library. The library just uses connect when it attempts a connection to a socket. If the host is not there, the timeout is up to 2 minutes. The app I am working on will only run on a local isolated network, so it does not have any need for a long timeout. I cannot recode the library and require it due to shared resource constraints, so would like to turn down this default to a much smaller value. I have looked through the documentation and searched help, but I can find nothing there on the matter. I did find something from 2001 on syncookies, but am not sure that applies anymore. Help appreciated. Thanks. --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] libXau-devel and missing libXau.la
by Alvin 14 Mar '08

14 Mar '08

Hello all, Not sure if this is the right list to mention this so if it isn't, perhaps someone can enlighten me :) I am using openSUSE 10.3 with Xorg 7.3 from the repo: http://download.opensuse.org/repositories/X11:/XOrg/openSUSE_10.3/ When I compile source that uses libtool, I get a linking error saying that libXau.la cannot be found. If I downgrade to xorg-X11-libXau 7.2-54 (from suse-oss repo) I can link without any problems. I checked the contents of the 7.3 rpm for libXau-devel and in fact, libXau.la is missing. The file is present in the 7.2 rpm though. Is this a bug in the libXau-devel 7.3 rpm? If not, how can I convince libtool to be quiet? ;) I don't directly use libXau so I can only assume that some other library requires it? Also, is there any problems with having libXau 7.2 when I have Xorg 7.3? Thanks, Alvin --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] gfortran (?) problem
by Joseph Comfort 10 Mar '08

10 Mar '08

I have spent a lot of time trying to identify the source of a failure, and I need help. I have been using a fairly large and complex program for many years. In short, it is based on the Cernlib files (for those who know), with the code and scripts adjusted to handle both 32-bit and 64-bit processors and both g77 or gfortran. I have been able to get my applications to work fine up through SuSE 10.2. In SuSE 10.3, my major application segfaults at the beginning, when only a limited amount of initialization has been done. I still have some 10.2 machines available. Everything works with both 32-bit and 64-bit versions. At the moment, I only have 64-bit machines with 10.3. I have run strace and valgrind. I see things that differ between codes that work and codes that don't, but I am not able to discern what might be the problem -- it's beyond me. It is not easy or possible to produce a test file that would isolate the problem. I am using a very small user main program, but it links to libraries that have very complex generation scripts. There is all kinds of memory management going on in the stuff that is failing (through Fortran and C) but, as noted above, it seems to be fine under SuSE 10.2 and earler. The gfortran for SuSE 10.2 is 4.1.2. I have tried both 4.1.3 and 4.2.1 in SuSE 10.3; both lead to failures. My basic question is: what got changed in going from 10.2 to 10.3, either in gfortran/gcc or in various libraries? (I had to change my link list of system libraries to get an executable,) Any hints as to how I might track down the problems (valgrind or whatever) would be appreciated. Thank you, Joe Comfort Joseph.Comfort(a)asu.edu --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] what happened to /bin/setkeycodes? (jnweiger?)
by Werner Flamme 07 Mar '08

07 Mar '08

Hi, in my /etc/boot.local I have some lines calling /bin/setkeycodes. For a few days now, I get a "command not found" from there. Using "webpin setkeycodes" I find 2 sources for package kbd: version 1.12 [suse-oss | jengelh] and version 1.14.1 [BS::home:/jnweiger]. Though webpin states there is a /bin/setkeycodes inside jnweiger's package, it isn't. I copied the rpm onto my disk and looked inside, and there is not setkeycodes inside /bin or any other directory :-(. The man page is there... Since I use "apt update && apt upgrade" regularly, and home:jnweiger is in my repo list, I am running a "kbd" without setkeycodes now. That's making me sad... What can I use instead of setkeycodes? loadkeys seems to require some skills ;-) Regards, Werner -- Werner Flamme, Abt. WKDV Helmholtz-Zentrum für Umweltforschung GmbH - UFZ Permoserstr. 15 - 04318 Leipzig Tel.: (0341) 235-1921 - Fax (0341) 235-451921 http://www.ufz.de - eMail: werner.flamme(a)ufz.de --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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[opensuse-programming] Has anyone used POSIX message queues?
by Per Jessen 03 Mar '08

03 Mar '08

I'm thinking about using posix message queues in a new design, and I was just wondering if anyone had anything good or bad to say about the concept? /Per Jessen, Zürich --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

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