Re: core dump in torture test

[Lucas Gonze]

To resolve this issue, I'm going to plant a note for future devs in the
bug-ncurses archives via this email.

CDK is known to fail if invoked through a signal handler; specifically,
through a SIGCHLD handler.  So rather than handling window resizes 
asynchronously, as in this example:

void winchange_handler(int signo){

  signal(SIGCHLD, SIG_IGN);
  if( victim == NULL )
    // not initialized yet, so there's no window to change
    return;

  victim->recalc_window();
  signal(SIGWINCH, winchange_handler);
}

You should handle window resizes synchronously, as in this example:

  void wait_for_any_key(){

    while(true){
      switch( wgetch (cursesWin) ){
      case KEY_RESIZE:
        recalc_window();
        break;
      default:
        return;
      }
    }
  }


- Lucas