after exit(1) from curses program, terminal has no text
Hi cprogramming,
I have a program where
1. the user can choose to display an ascii pic from three options
2. the pic displays in a curses window for, say 10 seconds (10 is a cmd line arg)
3.the menu of the 3 pics returns
if the user hits ctrl-c, the program should display a message, wait 3 seconds, then exit (using exit(1)).
I have a trial program that uses signal(SIGINT, func), that exits fine.
BUT, when i try a similar func in the middle of a curses program, the signal function exits, BUT then the terminal screen will not show any characters typed in, and the prompt will be LINE-1 COL+1
I'm new to signals and curses, so I don't know where the problem lies
here is my test program for signal(SIGINT,func), it works fine
Code:
#include<stdio.h>
#include<signal.h>
void handler(void)
{
printf("timeout!\n");
signal(SIGALRM, handler); //reset the action
sleep(5);
exit(1);
}
int main(void)
{
signal(SIGINT,handler);
while(1)
{
printf("PRESS <RETURN>\n");
getchar();
}
}
here is my main and func from the prog that causes terminal to mess up
Code:
#include<stdio.h>
#include<stdlib.h>
#include<signal.h>
#include<curses.h>
void func_handler(void)
{
printf("\nquitting in 3 seconds\n");
refresh();
signal(SIGALRM, func_handler); //reset teh action
sleep(3);
exit(1);
}
Code:
#include<stdio.h>
#include<curses.h>
#include "lib.h"
#include <signal.h>
#include<stdlib.h>
int main(int argc, char *argv[])
{
int delay;
signal(SIGINT,func_handler); //set the action
sscanf(argv[1],"%d", &delay); //get argv[1] and convert from string to int
//using sscanf
char choice;
initscr();
choice =' ';
do
{
move(13,0);
addstr("\nPress 1 for Sam,2 for Norm,3 for Rad 4 to quit: ");
refresh();
choice = getchar();
if(choice =='1')
{
sd();
sleep(delay);
}
else if(choice =='2')
{
nd();
sleep(delay);
}
else if(choice =='3')
{
rei();
sleep(delay);
}
}while(choice != '4');
endwin();
}
