not able to work for alarm clock
i have want to simple program which will do the following->
1. Display enter the name message
2. Accept input for 5 secs
3. if user is successful to write message in 5 secs then he wins
4. else looses.
I want to do it with the use of alarm() system call on unix.
Code:
#include<stdio.h>
#include<sys/signal.h>
#include<unistd.h>
char *name;
void wakeup()
{
scanf("%s",name);
}
int main()
{
while(1)
{
printf("Enter the name :->");
signal(SIGALRM,wakeup);
alarm(5);
pause();
}
return 0;
}
Problems with the code:
1. It is not following the flow, seems that pause() has more priority. The message ""Enter the name :->", is displayed with delay.
2. whenever control goes to wakeup, scanf blocks the control for infinite period. I mean unless I press ENTER, control wont do anything. So whole idea of terminating the input process after 5 secs becomes useless
how to do it???
