I am trying to find a way to pull Node Pointers out of the model, for use in other areas of the program. The solution is probably simple but I haven't had any luck finding it.
Model for a QTreeView:
Code:
class testModel : public QAbstractItemModel
{
public:
testModel();
~testModel();
[code]....
I have created a simple menu driven script for our Operations to take care of the basic monitoring and managing of our production application from the back-end. Now, the script when tested in UAT environment was fine, but when deployed to production it kind of behaved oddly.hen the Operator chooses an option from the menu he is given the output and at the end is prompted to return to the main menu by using ctrl+c. In production, this return does not occur for some strange reason and the program just sits there.The session becomes unresponsive after that and I'm forced to terminated it by closing the PuTTY.I tried enabling the debug mode too (set -x) and still was not able to find any useful hints/trails as to why.
View 5 Replies View RelatedI wonder why arrays in the C programming language are pointers to the first element of the array, not the first element of the array itself?
View 14 Replies View Relatedi'm practicing in very basic c programs using the gcc compiler.I found that when i create two variables let's say
Code:
int a,b and Code: a=15;
b=3;
a=b;
b--;
then a equals 2.I thought that this isn't normal in C isn't it?I haven't had the time to read the gcc documentation yet...so i think it has something to do with my compiler's default settings.I use the
Code: gcc filename.c -o filename command to compile
Are all variables defined like pointers?
So the place where I'm having a problem is here:
Code:
typedef struct {
void **Mem_Chunk;
[code]...
What is the difference between *ptr++ and (*ptr)++. In my opinion the terminology is all over the place so if you could give an example it would be better.
View 8 Replies View Relatedi'm a bit stuck playing with the following class setup for glut. The actual issue is with the function pointers.Basically the following code is the opengl redbook cube example slightly modified.
View 2 Replies View RelatedI need to call functions that match an input string (if input str = "func1", call func1), so I have this:
Code:
#include <stdio.h>
#include <string.h>
void function_a(void) { printf("Function A
"); }
[Code].....
In the above example, the functions take no input arguments. Can they take a different number of arguments, for example, function_a(int), function_c(int, int), function_e(int, char, int)? How can I do that?
I want to know is there some more efficient way of passing a pointer to a local variable as a parameter to a function in x86 asm? Right now I have to move the base pointer to a temp register, subtract from the register and pass that, like this (assuming a local var at esp-4):
Code:
mov eax, ebp
sub eax, 4
push eax
Is there a better way?
I'm trying to figure out how to code for this specific type of instance - I want to use a hash and have the key be a reference to an array, and not use the key in the standard way of it being a scalar. Basically, I have a large output that I need to process line by line, and rather have access to it as an array than a big block in a scalar. For the big block hash as a scalar I would do -
Code:
foreach $CONTROLLER (<CONTROLLER_LIST>) {
$ALL_DISKS{$CONTROLLER} = `ssh -n <commands>`;
}
Now I know I could take the scalar and split it to another array after the fact like -
Code:
@TEMP_HOLD = split (/s+/,$ALL_DISKS{$CONTROLLER});
How would I code it that I would have access to the key information as an array and not a scalar? I know it needs to be a pointer and we're going to have -> in there somewhere, but not sure how to approach it. Some of the documentaiton I've been reading about referencing I've found a little confusing so far, and trying to figure out how to use them in context of what I'm working on.
I've seen all three uses:
type * pointer
type *pointer
type* pointer
Are these 3 forms essentially the same, i.e., is the spacing as used here a non-factor when declaring pointers?
I have the most strange problem ever in programming. I fork a process into a parent and a child. In every forked process i declare a pointer, malloc and define a different value for every pointer.When i printf the value and the address guess what? They both have the SAME ADDRESS but DIFFERENT values, as assigned..Here's the portion of my code:
pid = fork ();
switch (pid)
{
[code]....
Code:
#!/bin/sh
egrep -o 'SRC=[[:digit:]]{1,3}.[[:digit:]]{1,3}.[[:digit:]]{1,3}.[[:digit:]]{1,3}' /var/log/messages | sed 's/SRC=//g' | sort | uniq > /badips.txt
[Code]....
how do i pull the IPs one by one from the file and then ban?
I following structure
typedef struct
{
[code]...
I've set up DRBD on 2 machines, 1 of them is the master, another is the slave.
After each bootup, I need to run the following on the master machine:
Code:
drbdadm -- --overwrite-data-of-peer primary all
Do we need to specify which machine should be the primary node every time? Is there any method to make the machine "know" it's itself the primary node?
I have a 10x2 matrix, I create said matrix and fill it one column with zeros and the other with ones, now when I print the matrix I get this:
column 1:
0,0,0,0,0,0,0,0,1,1
column 2:
1,1,1,1,1,1,1,1,1,1
The first two rows of the second column are being replaced into the last two rows of the first column, now I even checked in visual studio and it works fine there. A friend tried my code and he gets it even worse:
column 1:
0,0,0,0,1,1,1,1,1,1
column 2:
1,1,1,1,1,1,1,1,1,1
As far as I've seen it must be a problem with GCC, unfortunately I need to have this up and running in GCC no matter what.
[Code].....
I am familiar with windows 2008 cluster servers, and I just started testing with centos cluster. I am creating a simple 2-node cluster, for a simple ping test.
Node 1: 10.0.0.1
Node 2: 10.0.0.1
Virtual ip: 10.0.0.10
So far, I can ping a virtual ip, and manually relocate it between the nodes, but I didn't figure out, how to do this automatically. So this is my question: How can I setup the cluster, to it automatically failover the a service to another node case one node fails?
I have a script in Linux that generates a report on my Linux machine. I would like to know if there is anyway I can write a script to pull this report automatically from my Linux machine into my windows machine. Both Linux and Windows machines are on the same network
View 1 Replies View RelatedI have to pull certificate from multiple computers which are on network and store it in a single fie or each file belong to a particular computer.I am using certutil -store to import the certificate.
View 4 Replies View RelatedI don't have much experience in clustering. And I'm deploying a cluster system on CentOS.But I don't know how long a node failover and another node take over those resouces to continue running service is good, fast or slow? 1s, 10s or
View 2 Replies View Relatedin the access logs i have this:
Code:
IP.IP.IP.IP - - [01/May/2010:11:21:10 -0400] "BIG STRING" 414 250
how can i grep and pull the IP based on the request string?
I am trying to figure out a way to pull http links out of text files and then output the results in a log. The text files are in folders like this inside a source directory.
/source
./folder1
...folder1.txt
./folder2
...folder1.txt
[Code]....
I wanted to implement a graph.By graph I mean to say that I am writing programs for BFS,DFS and other such stuff and want to see them in action. For this I started writing a program.The first entry point is to define a graph. I took a pen and paper and made a graph. Now to be able to code this in C.I defined a structure but I am finding problem in defining this structure. I looked into Google and came across incidence list and adjacency list representation [URL] after understanding that I am not able to understand how do I define my structure that would be a node in graph. Here is what my graph looks like
Quote:
|-----------31
| |
| 2---4---6---8
| |
[code]....
I've been facing this problem since months before I decided to find an answer. I downloaded a cursor theme from gnome-look.org and then installed it by dragging the tarball to the themes window. It said theme is installed. But the effects are not visible yet. I then shoot up firefox to see the new pointer working but not outside firefox. I even noticed the new pointer theme works in nautilus for all except pointing (it works while resizing, selecting text, loading but not the regular pointing).
I searched the forums and found a similar problem: [URL]
the solution doesn't work because there is no "cursor theme" option in ccsm. i've attached a screenshot too.
Is it a bug? do i need to disable compiz to "have my own desktop"? Is there a solution?
I need to use fglrx as later don't support TecraS1 chipset and ati driver is unable for FS flash playback.The required ati fglrx only works with Dapper 6.06 LTS but not with new newer releases with newer xorg. someone fix me on this. If I remember maverick xorg I lose all the ubuntu screen candy, right? If I compile xorg7.0 with Maverick I guess I could get it to work, but what about getting Ubuntu Gnome desktop instead of plain out-of-the-box xorg?
View 6 Replies View RelatedI have a project for my computer class, and I was a bit ambitious with my ideas and am wondering if I made a smart choice. I need to learn sooner or later anyway! I'm a beginner when it comes to scripting but I'd like to learn more advanced stuff. When I say basic I really mean basic among all basic. To give you an idea I only know some simple HTML and Python. The idea I proposed for my project goes as follows:
The challenge we were given is to create a spreadsheet of data from a website given to us. Points are given for creativity and simplicity in how we go about doing this.After taking a look at the site (or rather, html files given to us), and with having dabbled with Python before, I came up with what I thought was a pretty good idea.The pages of the "site" are just numbers. They go from 001-117 .html in terms of filenames. Their source code has some sort of table set up, and the information we are pulling off are easily found by the tags that precede them (the info, btw are the periodic elements).
The tags are pretty obvious, and state pretty much what they are labeling. My python knowledge is almost nonexistent but I figured that would be something Python would be capable of. Why do I post this here? I'm relatively new to Ubuntu too but keep hearing about bash scripts and such. Would this be even better? (Perhaps it's silly but I'd like to use Ubuntu to accomplish this)
Or is there an even better scripting method/language I should be using? Could anyone give me some pointers in how I could accomplish this? I'm really hoping to learn a lot from my first "real" scripting experience!
I'm trying to list some information of my database. To do that I'm using a class(MyClassDao) that will do all the SQL stuff and returns to me a list of objects with the content of my table (each row = one object). The problem is: my list gets only the first object... on the second index I'm getting 'segfault'.Can someone post something to help me (link, reference or example)?The call for the list function is:
Code:
MyClassDao* mcd = new MyClassDao();
MyClass** myClassList;
[code]...
I am trying to install MyEclipse on FC10. But, I am getting an SELinux alert saying that myeclipse is attempting to move/change a file - Thus I can't seem to get it installed.
I have NO idea how to get around or work with SELinux any pointers.
Running 10.04 64-bit. After installing any custom mouse pointers the new pointers only appear when the pointer is in the main "body" of a window. When in the menu bar, title bar, and some other peripheral areas of the window the pointer changes back to the default. Custom pointers are not displayed at all on the desktop or in the panels. Very strange.
View 2 Replies View RelatedSun VBox
host - Debian 5.0
VM - Ubuntu 10.04 (lucid)
gnome desktop
rdesktop
Running rdesktop to connect the VM on the host connection can be established with VM desktop displayed on the host desktop. But there are 2 mouse pointers on VM desktop. It is difficult to control. One mouse pointer does not work but hanging there. 2 pointers moves simultaneously.
