1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2017-2023 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18/* This program is intended to be started outside of gdb, and then
19   attached to by gdb.  It loops for a while, but not forever.  */
20
21#include <unistd.h>
22#include <stdio.h>
23#include <sys/types.h>
24#include <termios.h>
25#include <unistd.h>
26#include <signal.h>
27
28int
29main ()
30{
31  /* In case we inherit SIG_IGN.  */
32  signal (SIGTTOU, SIG_DFL);
33
34  alarm (240);
35
36  int count = 0;
37  while (1)
38    {
39      struct termios termios;
40
41      printf ("pid=%ld, count=%d\n", (long) getpid (), count++);
42
43      /* This generates a SIGTTOU if our progress group is not in the
44	 foreground.  */
45      tcgetattr (0, &termios);
46      tcsetattr (0, TCSANOW, &termios);
47
48      usleep (100000);
49    }
50
51  return 0;
52}
53