Why is the timer not executing?
Code: #include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <pthread.h>
void func(union sigval sv)
[Code]....
I have a server listening on incoming client connections. Once the client establishes SSL connection with the server, the server waits on read() from the client. Only Client can disconnect the connection. I want to have a timer in the server program to wait for x secs after read() and then disconnect the Client connection.
View 3 Replies View Relatedi have a server program which accept multiple client connection and am using polling. like every 2 secs it will look to client whether any data is received after it binded. i have used setitimer but there is runtime error i got.. the server accept all client connection but doesn't execute any msg which client sent.
#include<stdio.h>
#include<stdlib.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netdb.h>
#include<unistd.h>
#include<pthread.h>
#include<string.h>
[Code]....
I've recently started coding in bash and I'm making a diagnostic check CD for rackmounted computers to print out to an LCD screen. So far it works but what i want it to do is, when it checks what ethernet ports are unplugged, it stays there for 30 minutes or so and proceeds through the script. I've looked up cron and that seems to be useful for making timers on permanent systems but I just want the cd to boot, do the check and then eject it and let the real OS take over and I've also tried using:
while [ `sleep 30m` ];
do
<script>
with no luck. Is there any command I can use to do this? I've noticed a few examples where people have captured the time and then used a while less than/greater than statement but I'm not sure how to do this. Is it possible to do a concept like:
while [ %current time -lt %current time+30 min ];
do
<script>
On the following link Following code is given
Code:
loopbit = loops_per_jiffy;
/* Gradually work on the lower-order bits */
while (lps_precision-- && (loopbit >>= 1)) {
loops_per_jiffy |= loopbit;
ticks = jiffies;
while (ticks == jiffies); /* Wait until the start
[Code]...
I'm trying to understand how interrupts work. Is there a way to generate timer interrupts in C. Also can we enter into the protected mode of the CPU. Does OS (specifically, linux) place any restrictions on user programs entering protected mode. If it does not, do we just have an assembly language program which changed the mode, followed by the C code... I'm just trying to understand how things work at the lowest level. So I'm trying to write few snippets to test my understanding.
View 3 Replies View RelatedI need programmer a timer of 10 ms for read/write a USB device
View 4 Replies View RelatedMy system: Ubuntu 2.6.31. Language C, compiler: gcc I am running dynamic timer as a kernel module and my issue is that the once the timer overflows, the program finishes. On the other hand i have forced to arm the timer again because of a while loop but the timer never is started again. i am targetting a periodic timer but it runs once and thats it.
[Code]...
I'm implementing a TCP protocol. TCP implementation requires to send packets continuously and if the receiver doesnt respond after a particular interval of time it should resend the packet again. I need some method to implement a timer expiry function. How can I implement it? Should i implement threads (If yes can you please give a sample)? or is there any better method? I'm implementing it in a Unix system.
View 3 Replies View Relatedwhat we are trying to do is, to let the customer click a button in the web browser, and then the web server to call a shell script to do the work. The output from the stdout && stderr of the script should be displayed in the web browser once finished or timeout, along with the exit code of the script.
The shell script is however not on the web server, but on another app server. So to call this script from the web server as the identity 'tomcat':
Code:
$ sh appuser@app-server:$appbin/app-script
The .ssh/id_rsa.pub thing is done, and we have no problem doing this in the command line so far.
Our loaded ex-colleage has left us the webpages (jsp) with code like these:
Code:
<%@ include file="jsp_functions.jsp" %>
<%
String cmd = "sh $appbin/app-script";
ExecResult r = new ExecResult();
[Code].....
I am having the following error while executing script and initialing my application
./ss.sh: line 1: kk.sh: command not found
./ss.sh: line 2: mon.exe: command not found
Can somebody assist ASAP.
I have an application, probably cpu-intensive because sometimes it leaves the cpu with 0% idle (in top). Sometimes it hangs ("Done" does not print) when executing this part, but most of the time it executes just fine. Is there any wrong with this code?
View 2 Replies View RelatedI need a way to read and delete text found before a unique string, then delete the string. I would like to have the text stored in a variable--or better yet--executed it as a shell script directly.I intend to execute the stored text in bash. It does not matter much what language the program is it, however efficiency is desirable. This script is not going to be used on large files, but it may be executed many times sequentially so the faster the script works the better. Here is an example:
exclamation-"It worked!"
echo $exclamation
cd
[code]....
I need to execute an external command with Python from Web. I know there is subprocess module that executes external programs but I'm trying to execute a command registered for the execution of a program. In this case when I execute my file in the shell everything is Ok, but from the Web it doesn't work.
View 1 Replies View Relatedwhat i did is created a file called pro3types but the script starts & by pass the file. i added +x to file ran the process but still no luck. i was wondering what else i should change to get the menu to the sub-categories of product3 after users selecting it. all I need to get the pro3types runs after users selecting product3 from the previous menu. need more info please see the thread: "Adding New Selections to the existing Script"
[URL]
but here is code:
Code:
#!/bin/sh
echo SELECTTYPE
export -n selecttypechoice
[code]....
I am learning about OS and I wrote this simple forking program... Here's the code..
Code:
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
[Code].....
How can it print the first statement, that is BEFORE the fork() statement twice?
I am running Natty 11.04 btw..
I am fairly new to linux still and I'm currently trying to write a shell script (which I have never done) that is supposed to run the xrestop(like top) program. What I want to do is execute the program and check the identifier column to see if a certain program is running. If it is running I want to strip the data from that row of the terminal say every 5 seconds or so and put it in a text file. Is this going to be a complicated thing?
Heres a list of the columns when you run xrestop program res-base Wins GCs Fnts Pxms Misc PxmMem Other Total PID Identifier.
I'm trying to execute the following command within a bash script:
Code:
tac /var/log/system.log | head -1
The script I wrote is:
[code]...
I have been searching for 90 minutes for something that I "think" should be fairly easy. I'm pretty new to Bash Scripting so I could be completely wrong. Then again it may be a weird request to even need something like this. But here it is.I have a script written to convert data from one of our software version to another. The only thing I need to add to it is a "check to make sure the user running the script is in the /tmp directory".
View 7 Replies View RelatedI'm still a but confused about the standard way of removing it for left-associative operators: [URL] Especially about how to construct an AST from it by executing a peice of code for every nonterminal matched. And I'm still not totally convinced that it will be left-associative, I just barely understand it. Also, how would you remove left-recursion for something like this:
Code:
expr ::= expr "(" param_list ")"
| other stuff...?
I have a TCL framewrok for my test cases automation. This is been working for last 1 year. But yesterday it exited with exception when a function was called. The exception was given as fork: not enough memory while executing "spawn bash"(procedure "runtrigger" line 36) invoked from within "runtrigger $fnAfter $sid_l $mapver" ("trigger" arm line 6) invoked from within
View 4 Replies View Relatedwanted to know if i can execute commands on linux console through a web page and redirect it back to my web page !For example :if i send a query "ls"it should execute this command on my linux console and also redirect the list of the files to the web page from which i give the command !
View 8 Replies View RelatedI have a simple BASH script that I want to make it execute USERNAME and PASSWORD to another bash script and htdigest. But After passwd, with htdigest and the script rustart, I have to manual enter the answers.
#!/bin/bash
echo -n "What is the user name?"
read -e USERNAME
[code]....
Quote:
This will ask me for username and password, but I want it to take the username and password from $USERNAME and $PASSWORD
service rustart restart
Quote:
This script needs a username to restart another exec, but I don't wana have to manually type in the username, I just want it to automatically fill in the $USERNAME
I'm developing a Servlet which when it gets a request, it has to execute a command. I've tried in Windows and it works fine, but when I "install" my web app in Linux, if I try to execute the commands I get permission error.
An example of one command I'm trying to execute is: Runtime.getRuntime.exec("rm file_name"); -> This commands outputs that I don't have permissions.
If I add "su" before the command, how do I add the password?
This is my first time of trying this software even though i have not started using it i would like to have an incite on issues like initial setup, running programs and even solutions to problems with driver to run others had ware that if any at all just a guid before i install it and start using.
View 3 Replies View RelatedF10 logs off a user when idling after a certain time. I cannot find the place where to set the time and other things (like to disconnect from network at logoff etc). where to set this? I didn't find it in neither 'power management' or 'users + groups'.
View 3 Replies View RelatedI may be wrong but I remember when I would go to restart my computer, a window would appear with a coundown clock starting at I think 60 seconds. I don't see this in Ubuntu 10.04. How can I get this back? Is there a setting in the Configuration editor or something similar?
View 8 Replies View RelatedI've installed Linux Ubuntu 10.04 LTS on my computer, and the Dual-booting shows after starting the computer
But what I need to know is how do you set the timer so that if I don't press "Enter"...that it choses my preferred operating system in a certain period of time (seconds or minutes...etc) by itself?
How do I set the user inactivity timer to a different value in 10.04? It seems to be set by default to a very short time.
View 1 Replies View RelatedAnyone know of a possible replacement for the Gnome timer applet?
View 8 Replies View Related
