DaniWeb Forum Index > Software Development > C

execute some code just before stopping program using CTRL-C

Please support our C advertiser: Programming Forums - DaniWeb Sister Site

•

Join Date: Nov 2008

Posts: 35

Reputation: CoolAtt is an unknown quantity at this point

Solved Threads: 0

CoolAtt

Offline

Light Poster

execute some code just before stopping program using CTRL-C

Mar 19th, 2009

hi everyone.

my program uses an infinite loop & runs forever.
i want to run some codes when i decide to stop the program using CTRL-C.

Is this possible ? Please advise me.

thanks

•

Join Date: Aug 2005

Posts: 15,661

Reputation: Ancient Dragon has a reputation beyond repute

Solved Threads: 1501

Ancient Dragon Ancient Dragon is offline

Offline

Still Learning

Re: execute some code just before stopping program using CTRL-C

Mar 19th, 2009

There isn't a standard way to do it -- depends on the operating system. You might try calling onexit(), but it may not get called when Ctrl-C is hit.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

•

Join Date: May 2008

Posts: 128

Reputation: kenji is an unknown quantity at this point

Solved Threads: 10

kenji

Offline

Junior Poster

Re: execute some code just before stopping program using CTRL-C

Mar 19th, 2009

I'm not exactly sure what you mean, but as CTRL-C is used to terminate your program I doubt any code will be allowed to run.

And she said "Let there be light" and on the seveth day Windows booted.
And the crowds screamed in terror and cowered in fear for Microsoft had approached.
From the testament of 10011101

•

Join Date: Oct 2008

Posts: 476

Reputation: nucleon has a spectacular aura about

Solved Threads: 91

nucleon

Offline

Posting Pro in Training

Re: execute some code just before stopping program using CTRL-C

Mar 19th, 2009

You could try signal():

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
#include <stdio.h>
#include <signal.h>
 
void cleanup(int unused) {
    printf("Cleaning up\n");
    exit(-1);
}
 
int main() {
    signal(SIGINT, cleanup);
    for (;;) /* Ctrl-C to exit */
        ;
}
#include <stdio.h>
#include <signal.h>

void cleanup(int unused) {
    printf("Cleaning up\n");
    exit(-1);
}

int main() {
    signal(SIGINT, cleanup);
    for (;;) /* Ctrl-C to exit */
        ;
}

•

Join Date: Aug 2005

Posts: 15,661

Reputation: Ancient Dragon has a reputation beyond repute

Solved Threads: 1501

Ancient Dragon Ancient Dragon is offline

Offline

Still Learning

Re: execute some code just before stopping program using CTRL-C

Mar 20th, 2009

As nucleon illustrated above it will depend on the operating system. His code is *nix only and possily MAC. For MS-Windows, see this article

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

•

Join Date: Nov 2008

Posts: 35

Reputation: CoolAtt is an unknown quantity at this point

Solved Threads: 0

CoolAtt

Offline

Light Poster

Re: execute some code just before stopping program using CTRL-C

Mar 23rd, 2009

thanks nucleon & Ancient Dragon.

I modified the way the program will be running.It will run in the background so no output will be visible to the console.

I want to use the kill command & achieve same result.
Plz advise me what i need to modify.

thanks.