diff options
Diffstat (limited to 'fstests/timertest.c')
-rw-r--r-- | fstests/timertest.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/fstests/timertest.c b/fstests/timertest.c new file mode 100644 index 00000000..2d602560 --- /dev/null +++ b/fstests/timertest.c @@ -0,0 +1,64 @@ +/* A test for the Hurd timer and getchar + Copyright (C) 1994,2001,02 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <signal.h> +#include <sys/time.h> +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <error.h> + +void +alarm_handler (int signo) +{ + printf ("Received alarm\n"); + fflush (stdout); +} + +int +main(int argc, char *argv[]) +{ + struct itimerval real_timer; + + real_timer.it_interval.tv_usec = 0; + real_timer.it_interval.tv_sec = 1; + real_timer.it_value.tv_usec = 0; + real_timer.it_value.tv_sec = 1; + + signal (SIGALRM, alarm_handler); + + if (setitimer (ITIMER_REAL, &real_timer, 0) < 0) + error (1, errno, "Setting timer"); + + while (1) + { + int c; + puts ("Pausing for input or one second..."); + fflush (stdout); + c = getchar (); + if (ferror (stdin)) + error (1, errno, "getchar"); + if (c == EOF) + { + puts ("Saw EOF. Pausing (no input)..."); + fflush (stdout); + sigpause (0); + } + else + printf ("Saw %.3o\n", c); + } +} |