i have written a program to use timer signals.. to understand timer signals..But it doesn't work..
i need to use timer signals in order to kill processes after the expiration of a specific time passed as a command line argument.
pls help me out

#include<stdio.h>
#include<sys/time.h>
#include<stdlib.h>
int setitimer(int which, const struct itimerval *value, struct itimerval *ovalue);
struct itimerval {
struct timeval it_interval; /* next value */
struct timeval it_value; /* current value */
};

int main(int argc, char *argv[])
{
int val,ret;
val=atoi(argv[1]);
ret=setitimer(ITIMER_VIRTUAL,val,2);
if (ret==0)
printf("timer expired\n");
sleep(5);
return 0;
}//main

int setitimer(int which, const struct itimerval *value, struct itimerval *ovalue)
{struct timeval it_value;
it_value=value;
}//setitimer

i hope what i have written is clear.. please do help me out....

Hello ,
For creating timers in linux you must use the system calls timer_create() and you must implement your call back function which will be invoked when the timer expires. To set the time for a timer you have to use timer_settime(). Iam not sure whether u have implemented it in this manner but i was not able to make out anything from your code . Hope this helps.

Regards,
S.Suresh Stephen