1 /* Copyright (C) 2003-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
24 #include <support/support.h>
25 #include <support/check.h>
27 /* Test that clock_nanosleep() does sleep. */
29 clock_nanosleep_test (void)
33 gettimeofday (&tv1, NULL);
35 struct timespec ts = { 1, 0 };
36 TEMP_FAILURE_RETRY (clock_nanosleep (CLOCK_REALTIME, 0, &ts, &ts));
38 /* At least one second must have passed. */
40 gettimeofday (&tv2, NULL);
42 tv2.tv_sec -= tv1.tv_sec;
43 tv2.tv_usec -= tv1.tv_usec;
47 TEST_VERIFY (tv2.tv_sec >= 1);
51 clock_nanosleep_large_timeout (void)
53 support_create_timer (0, 100000000, false, NULL);
54 struct timespec ts = { TYPE_MAXIMUM (time_t), 0 };
55 int r = clock_nanosleep (CLOCK_REALTIME, 0, &ts, NULL);
56 TEST_VERIFY (r == EINTR || r == EOVERFLOW);
62 clock_nanosleep_test ();
63 clock_nanosleep_large_timeout ();
67 #include <support/test-driver.c>