openSUSE Programming July 2009

programming@lists.opensuse.org

4 participants
3 discussions

[opensuse-programming] waitpid() failed; error 10: No child processes

by Per Jessen

I'm forking a process, then waiting to pick it up with waitpid(-1,0,WNOHANG) but waitpid() returns -1 and error 10: No child processes ?? I suspect this may be somehow system/kernel dependent, coz' I have such code in a few places and it has always worked just fine, i.e. returned 0 when no child existed or had exited. I have a SIGCHLD signal handler, which just increments a counter. When the counter is >0, I call waitpid(). I obviously googled this, and came across a few hits, but nothing really useful. /Per Jessen, Zürich -- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

12 years, 10 months

[opensuse-programming] Contact users.opensuse.org and read a picture

by Sebastian Schöbinger

Hi I am recently writing an application for the openSUSE Weekly News Team with Qt C++ which should get the statistics and so on. 1.: It downloads the http://lists.opensuse.org/stats/general/general-mlmmj_subcount-day.png picture, but I don't know how to read out the text. Jan (dl9pf) made a Python script which reads out the text, but I don't know how to manage it with C++. I know I could introduce the python script, but I think that isn't the nicest way to do it. 2.: It should download the source from the https://users.opensuse.org site, to read out the statistics (how many users etc), but I just get: <HTML><HEAD><TITLE>Novell iChain</TITLE></HEAD><BODY><b><p>Your old browser does not support a 302 Redirect.</b></BODY></HTML> How can I avoid that? 3.: Probably the hardest question. How can I login myself through the program on opensuse.org and to upload the translated news to the weekly news site (I thought about the QHttpHeader, but I am not sure if it would work). ---------- mfg / best Sebastian Schöbinger //Member of the openSUSE Team // //Writer of the openSUSE News (Tips and Tricks) // //Translator of the openSUSE News // //http://de.opensuse.org/Benutzer:STS301 // //http://linux301.wordpress.com // Public openPGP key: 4C5E 2C32 7F1B 574C 0746 2DB1 724B E45F 1FC7 93A4

12 years, 10 months

[opensuse-programming] Getting PID by process-name

by Volker Poplawski

Hi all. How do i get the PID of a process by the process-name? I'm looking for the same thing pgrep does, but as a C-function. Regards .....Volker -- To unsubscribe, e-mail: opensuse-programming+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-programming+help(a)opensuse.org

12 years, 10 months

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openSUSE Programming July 2009