Hi, I am trying to call ejabberdctl from PHP but i keep getting an error code of 3 (Failed RPC connection to the node ejabberd@localhost: nodedown). My PHP script contains the following code to add friends : exec('sudo /opt/ejabberd-2.1.2/bin/ejabberdctl add_rosteritem adil.baig40122310029739 godudu.com chburaska0822431111022397 godud...
We have a tomcat application that started crashing every 10-15 minutes after we upgraded the OS ("aptitude dist-upgrade" of the system, which is a 32-bit Debian Lenny). java didn't get upgraded. A Full thread dump is generated in catalina.out when jvm crashes. But there is no error/exception showing in any of the threads. Does anyone k...
Can anyone tell me how to get interface index from interface ip address? e.g. If interface ip address is 192.168.23.25 then what is it's interface index. I want to add on that i need to use it in one code written in c so if any function with some option can give me the interface index number on the base of the interface ip address. ...
Hello, how do I get the x/y-coordinates of a left click in a Gtk StatusIcon? This is my first GTK app and I'm stuck. Is there any way to get details about the last button event that occurred? Or is it possible to pass those details to the handler function when connect()ing the "activate" callback? Greets, Philip ...
I open a mesage queue in a .c file, and upon success it says the message queue id is 3. While that program is still running, in another terminal I start another program (of another .c file), that creates a new message queue with a different mqd_t. But its id also appears as 3. Is this a problem? server file goes like this: void server(...
Today I read that there is a software called WinCalibra (scroll a bit down) which can take a text file with properties as input. This program can then optimize the input properties based on the output values of your algorithm. See this paper or the user documentation for more information (see link above; sadly doc is a zipped exe). Do ...
When I was reading Operating System Concepts (7e, Silberschatz, Galvin, Gagne), I encountered a study project about adding a system call to the linux kernel. The book says that The system call numbers for recent versions of the Linux kernel are listed in /usr/src/linux-2.x/include/asm-i386/unistd.h. (for instance, __NR_close, whic...
Hi I need ideas on how to write a C program that reserve a specified amount of MB RAM until a key [ex. the any key] is pressed on a Linux 2.6 32 bit system. * /.eat_ram.out 200 # If free -m is execute at this time, it should report 200 MB more in the used section, than before running the program. [Any key is pressed] # Now all the r...
as a beginner of asm, I am checking gcc -S generated asm code to learn. why gcc 4.x default reserve 8 bytes for stack when calling a method? func18 is the empty function with no return no param no local var defined. I can't figure out why 8 bytes is reserved here (neither any forum/site mention for the reason, ppl seems take it for g...
Hi everyone, I'm an Electronics and Telecommunications student, next to my graduation. I'm gonna work on a project that involves my knowledge about DSP, music and audio in general. I allready know all the basic mathematic instruments and all the stuff I need to manage it, such as FFT, circular convolution ecc ecc. I want to learn C++ ...
And i will run a java app using nohup ... & The setting must affect on this. ...
With python inotifyx, do I have to remove watch and close opened system file descriptor if I need them until program exit? E.g. is there some possible problems if I create one (file descriptor + watch) with each run and don't close it? ...
How do I put a program in the system tray (I don't think it's called like that in Linux) in python TKINTER for UBUNTU 9.04. ...
I have a UI app (uses GTK) for Linux that requires to be run as root (it reads and writes /dev/sd*). Instead of requiring the user to open a root shell or use "sudo" manually every time when he launches my app, I wonder if the app can use some OS-provided API to get root permissions. (Note: gtk app's can't use "setuid" mode, so that's n...
Hi, I am running multiple screens from one ssh connection, when I list all of the screens via screen -ls the names are not very descriptive and when I have multiple screens it becomes hard to remember what is running on each. Does anyone know how to name these sessions (preferably when creating the screen). Thanks ...
I am launching a Python script from the command line (Bash) under Linux. I need to open Python, import a module, and then have lines of code interpreted. The console must then remain in Python (not quit it). How do I do that? I have tried an alias like this one: alias program="cd /home/myname/programs/; python; import module; line_of_c...
Hi Is there any way to differentiate the child processes created by different fork() functions within a program. global variable i; SIGCHLD handler function() { i--; } handle() { fork() --> FORK2 } main() { while(1) { if(i<5) { i++; if( (fpid=fork())==0) --> FORK1 handle() else (f...
Newly compiled SQLite displays a strange behavior concerning the date/time functions. Do you have any idea what is going on and how to fix it? $ date Mon Mar 8 14:52:11 CET 2010 $ ./sqlite3 TEST0 SQLite version 3.6.22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> SELECT d...
Hi, I am trying to write a bash or PHP script that will execute a procedure on a MS-SQL server, does anybody have pointers on how to do that in the most easiest and convenient way? The script will run on a separate Linux box. Thanks. ...
Is there a drop-in replacement to glibc's libm (and headers?) for x86_64-linux that is faster? ...