Programming :: Multithreaded App Using Pth Does Not Work?
Mar 4, 2010I threw this togher based on the examples but the thread does not seem to run:
Code:
#include <stdio.h>
#include <pth.h>
[code]...
ADVERTISEMENT
Programming :: MultiThreaded Program In C++?
Oct 23, 2010I have a program called "Device Manager" to manange usb tokens for sending and recieving
multiple data to/from them using shared memory method.Here is a piece of "Device Manager" code:
Code:
int main()
{
[code]...
Programming :: Debugging Multithreaded Application?
Aug 23, 2010i need to debug a application which is using many threads. i am using eclipse with GDB debugger but it is not possible to debug it since it has a lot of different threads and i can not not debug it as wre debug in case of single thread(main) . So i would like to know, is there a way to debug such an application, if there is some tutorial that would be nice to know.
View 8 Replies View RelatedProgramming :: Multithreaded Reading And Writing Of A Shared Integer?
Nov 4, 2010It it safe to read a shared integer while another thread is writing to it on a multicore system?
View 3 Replies View RelatedGeneral :: Multithreaded Application / CPU And Memory Usage
Feb 14, 2009We run Jboss app server that of course is all multithreaded under one JVM. I have couple of question regarding monitoring on per thread basis:
1. Is there a way to see which thread is bound to which CPU core?
2. Is there a way to see the CPU, Memory usage per thread? Something like prstat on Sun box which is real time and gives detailed information about threads per CPU
General :: Profile A Multithreaded Program Using Gprof?
Jan 7, 2010How to profile a multithreaded program using gprof?
View 1 Replies View RelatedSoftware :: Limiting CPU Usage Of A Multithreaded Process?
Oct 12, 2010I have a multi-threaded process running and I have to limit the cpu time used by each of the threads. If 1 of the threads uses the whole of configured CPU time, the other thread should sleep and not consume CPU time in that cycle. 1 thread has higher preference over the other. How can i implement it my CPP code?
View 1 Replies View RelatedProgramming :: How Does Cin Work?
Mar 1, 2010This code will execute fairly well, however, if you enter multiple values that are not A/a or b, 1 or 2, then when the program resets, cin does not behave normally. Instead of waiting for input, it acts as if it has already been given input, and the input is the next character from the one entered.For example, entering "345" and submitting it at the (cin >> a line will individually pass the values 3, 4, and 5 through the if/else and switch statements, rather than only inputting the first value, 3, or all the values, 345.
If you enter, for example, "3343634563456345", then it will pass through the do{}while(); loop 16 times, with each pass having a = to the next character value. The cin >> a; is performed, and this is verifiable in GDB, however it never asks for input from stdin, and instead gets its input from somewhere else. How can I observe that, and what is going on?Furthermore, if you enter "cdefghijklmnopqrstuvwxyzab", it will pass through 25 times, and stop at a, which goes through the switch, and ends at a case statement that does not adjust the false value of mreset, thereby allowing the program to end.
Programming :: How Does The Assert() Work
May 22, 2010I got a problem about assert() on linux/unix && gcc , I wanna know how does assert() work,I mean that how does the assert() make the programme exit? Is assert() send SIGSEGV to programme or called function exit() or other ways?
View 4 Replies View RelatedProgramming :: Cc And Gcc Compilers Don't Work
Nov 14, 2010I've tried instralling the c and c++ compilers on my fedora 13 machine and none of them seem to work. For example. i have this extremely simple c program that i try to compile and nothing works.
Code:
#include "stdio.h"
printf("Hello World"); when i type Code: [####localhost Desktop]# cc hello.c i get this error Code: hello.c:3: error: expected declaration specifiers or �...� before string constant
hello.c:3: warning: data definition has no type or storage class
[code]...
i've tried intalling a group of developers tools using yum groupinstall "Developers Tools" and nothing......
Programming :: Use The Seq Command But Can't Get It To Work?
Mar 24, 2011I have a script that will build a list of hosts and it works fine Code: for ((i=$START; i<=$END; i++)); do echo "$NAME$i"; done But I need it to build the START and END on different number formats (i.e. 1 -> 10, 01->10, 001 ->010)
I am trying to use the seq command but can't get it to work quite right with the -w flag in the following Code: for ((myseq=$START; myseq<=$END; myseq ++)) do echo "$NAME${myseq}" done I am fully aware that this syntax is probably wrong, and need to know how to correct it.
Programming :: Can't Get The OR Operator To Work?
Apr 18, 2011I'm having a bit of trouble getting the OR operator to work.This is the code that I have:
global.php:
Code:
$vars["admin link"] = "<a href='/path/to/admin.php'>Admin</a>";
$vars["admin ip"] = "xxx.xxx.xxx.xx1";
$vars["admin ip2"] = "xxx.xxx.xxx.xx2";
[Code]...
Programming :: Cc And Gcc Commands Don't Work
Nov 14, 2010I've tried instralling the c and c++ compilers on my fedora 13 machine and none of them seem to work. For example. i have this extremely simple c program that i try to compile and nothing works.
Code:
#include "stdio.h"
printf("Hello World");
[Code]....
Programming :: How Do Cookies Work?
Mar 31, 2010I understand that a website can set a cookie which means a little text file with a no. in it will be created on the client side, and then the no. will get sent to the server with every visit. But how is this used to customize a page? Does this mean that a MySQL database *has* to be created, which can be used to match up that no. with a particular login name, for instance? How exactly is this pulled off?
View 3 Replies View RelatedProgramming :: How Does E-commerce Work
Apr 16, 2010I understand that cookies are used to hold the information of what items has been added to a users shopping cart on the server side. But then what happens when the user clicks "Buy" - how is the data from the server (i.e. the amount) transferred to the payment mechanism, which is probably a third party like WorldPay or something?
Programming :: Get Qt Plugins To Work?
Mar 21, 2011I've tried many times to get Qt plugins to work, but I just couldn't figure it out. I've written a small test application, how to write a plugin for it?
View 14 Replies View RelatedSoftware :: Work In Terminal And C Programming?
May 10, 2010I am having one Laptop. In that i am facing some error while installing linux OS. so i planned to install only terminal in my laptop. i dont want any gnome and etc.. simply i am going to use only c programming in my terminal. gcc compiler and shell to work "c" is enough for me. How to work in terminal and c programming.
View 6 Replies View RelatedProgramming :: How Break Points Work In GDB
Mar 24, 2011I want to know that how the break points and watch points work in the GDB. I know the GDB works on symbol table. But would like to know more details of it. How watch points differ from break points.
View 3 Replies View RelatedProgramming :: Can't Get HTML Canvas To Work In IE?
Jan 1, 2011Does anyone know how to get HTML5 canvas to work in Internet Explorer? I tries to do it using excanvas and jqcanvas but had trouble using them.
View 11 Replies View RelatedProgramming :: Cut Command Wont Work?
Mar 3, 2010on linux command promt cut command work.but the same command gives empty output in linus shell?F1=$(echo $line | cut -s -f26) NOT working in shellcat file | cut -s -f26 work!
View 3 Replies View RelatedProgramming :: Getting A INIT Script To Work?
Feb 23, 2011This is my first init script, so far, it atleast starts the daemon but it fails at creating a pid, so later on I can use to, to either stop it or reload it. Here's the current code: Further more, the script returns ok that it started the pid, when in fact, the pid fails in the background, this script needs MUCH improvement, some help would be nice to fix this script. :/
Code:
#! /bin/sh
### BEGIN INIT INFO
# Provides: znc
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
[Code]...
Programming :: One-liner With && And || Didn't Work
Feb 9, 2011I recently noticed some of my one-liners with && and || didn't work as I expected so I googled for "bash && || pitfalls" and found this page [URL] It's probably my fault, but I still don't understand why it wouldn't work as I want it..... I don't even have the code anymore that wasn't working properly because I rewrote it using if ; then ; command ; fi
View 4 Replies View RelatedProgramming :: Following Code Compiles, But Does Not Work?
Nov 8, 2010Put simply, the following code compiles, but does not work, and I have no clue why (despite reading extensively about rand()). In the interest of full disclosure, this is for a school project.
Code:
/*
* Dice.c
[code]....
Programming :: Getting A Comparison Operator To Work?
Feb 8, 2010I'm very new at Bash scripting and have a bone head issue that I'm trying (and failing) to resolve. I cannot get this one IF statement to work, it seems the comparison operator does not think the resulting number from the $b*$c+$b operation is an integer even though it is a number. Below is a small proof of concept script with the bit I'm having trouble with.
Code:
#! /bin/bash
a=800
b=700
c=.15
if [ "$a" -le "$(echo "($b*$c+$b)"|bc)" ]
[Code]...
Programming :: File Redirection Does Not Work Bizzare?
Apr 21, 2011When I execute the following command from the linux command line I get the output I want to the screen
[Code]...
Programming :: Get A Variable To Work As The Index Of An Array?
May 3, 2010I am having a little trouble with a Bash shell script that I am working on. It is intended to read the information out of a gedcom genealogy file and determine who has lived in a particular area and output a report based upon who lived in a given area (like the different sections of a bygdebok for example). I am having a number of issues.
1) I can't seem to figure out how to get a variable to work as the index of an array. For example, I am trying to use the variable $individual to count which individual is being read in from the .ged file, and once that is figured out, next I will read in the individual's name, so I would like to create an array of names using the variable
Code:
$individual
as the index of the array. However, if I try the code
Code:
name[$individual]=$lineoftext;
[Code]....
I included only the last few lines of output as to not take up too much space because the output goes on forever, but you get the point from the example. This output has nothing to do with what the final output of the program is intended to be like. It is merely a test to prove that the 2 variables in question are getting their date loaded in properly.
Programming :: Regular Expression {x} Doesn't Work?
Sep 2, 2010I am trying myself on regular expressions. A read on [URL]/regex.htm) that {x} means search X times preceding character. So, why is this :
Code:
wstation~> echo '123456789' | grep [0-9][0-9][0-9]
123456789 # MATCH !! I have 3 numbers in a row.
[code]...
Programming :: Alias And Shopt Won't Work In Script
Jul 6, 2011alias and shopt won't work in script
[Code]....
Programming :: Bash - Renaming Files Won't Work
Apr 1, 2010I'm trying to rename a lot of files getting rid of the space on the names. For that purpose I wrote this very simple bash script, but for some reason is not working.
Code:
for i in "$(ls)"
do
j=$(echo "$i" | sed 's/ /_/g')
mv "$i" "$j"
done But what I get in return for each line is just one long file name with all the file names concatenated. I've tried with echo -e "$i" as well with no results. This has to be something really simple that I'm missing but I just can't see it.
Programming :: Code Committed In Repository Does Not Work (Next Day)
Jan 3, 2011It has happened with me before too! Few months back while working on Priority queue in C language, I successfully compiled the code and it gave the desired outputs, I showed the running code to my other seniors and committed it to the repository at 21:00 (I was in the office till late night), next day my boss asked to show the running code, and it didn't work!!! I updated from the repository whatever I had committed but still nothing worked? And then on this Saturday, my boss fixed a bug and committed to the repository and asked me to checkout which I did today morning, and when I ran the code it didn't work?
View 7 Replies View Related