Mercurial > gnulib
view tests/test-nanosleep.c @ 17249:e542fd46ad6f
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 6d8330e7c259 |
children | 344018b6e5d7 |
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/* Test of nanosleep() function. Copyright (C) 2009-2013 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */ /* Written by Eric Blake <ebb9@byu.net>, 2009. */ #include <config.h> #include <time.h> #include "signature.h" SIGNATURE_CHECK (nanosleep, int, (struct timespec const *, struct timespec *)); #include <errno.h> #include <signal.h> #include <unistd.h> #include "macros.h" #if HAVE_DECL_ALARM static void handle_alarm (int sig) { if (sig != SIGALRM) _exit (1); } #endif int main (void) { struct timespec ts; ts.tv_sec = 1000; ts.tv_nsec = -1; errno = 0; ASSERT (nanosleep (&ts, NULL) == -1); ASSERT (errno == EINVAL); ts.tv_nsec = 1000000000; errno = 0; ASSERT (nanosleep (&ts, NULL) == -1); ASSERT (errno == EINVAL); ts.tv_sec = 0; ts.tv_nsec = 1; ASSERT (nanosleep (&ts, &ts) == 0); /* Remaining time is only defined on EINTR failure; but on success, it is typically either 0 or unchanged from input. At any rate, it shouldn't be randomly changed to unrelated values. */ ASSERT (ts.tv_sec == 0); ASSERT (ts.tv_nsec == 0 || ts.tv_nsec == 1); ts.tv_nsec = 0; ASSERT (nanosleep (&ts, NULL) == 0); #if HAVE_DECL_ALARM { const time_t pentecost = 50 * 24 * 60 * 60; /* 50 days. */ signal (SIGALRM, handle_alarm); alarm (1); ts.tv_sec = pentecost; ts.tv_nsec = 999999999; errno = 0; ASSERT (nanosleep (&ts, &ts) == -1); ASSERT (errno == EINTR); ASSERT (pentecost - 10 < ts.tv_sec && ts.tv_sec <= pentecost); ASSERT (0 <= ts.tv_nsec && ts.tv_nsec <= 999999999); } #endif return 0; }