Bout timers/interrupts

I want to make a program that will execute a function after 10 minutes. I mean along the process it will pause after ten minutes then execute a certain function. After execution it will resume the other process then count another 10 min. I tried using the delay(); and sleep(); function but it didnt worked. Is there any function that would be this possible?


ex

#include <stdio.h>
main()
{
clrscr();
/ * start counting for 10 minutes then execute a certain fxn*/
/* resume where it stopped */


}

:confused:

IIRC, sleep() is in milliseconds, so 10 minutes would be sleep(600000);

If the problem isn't this, please state the problem clearly instead of saying "it didnt worked."

You could also use the GetTickCount api.. this example pauses for 10 seconds and then quits:

Code:

---

#include <windows.h>

int main(){

DWORD start = GetTickCount();
        for(;;)
                if((GetTickCount() - start) > 10000)
                        break;
        return 1;
}

---

Alternativly you could use the time functions or as said above, the sleep function...

That code will just go round and round and round at 100% CPU.

Under Windows, calling Sleep(0) will tell the scheduler you don't want any more of your time-slice, hence you can get away with:

Code:

---

#include <windows.h>

int main() {
    DWORD start = GetTickCount();

    for(;;) {
        if((GetTickCount() - start) > 10000)
            break;

        Sleep(0);
    }

    return 0; // return 0 for normal exit, 1 is an error condition
}

---

Thanks for correcting me mike, didn't know about the sleep(0) thing.. ah and also, I always mix up return 1 and return 0 ;) this was the last time hehe (nullrmal :))

Thanks guys! Ill try this one... I'll keep in touch...:)

If you're already using Sleep, why not simply sleep for 8000 ticks and then enter a fast loop? This way you don't even start CPU shifts.