1 /* 2 * Copyright (C) 2015-2017 Cyril Hrubis <chrubis (at) suse.cz> 3 * 4 * Licensed under the GNU GPLv2 or later. 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 2 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 13 * the 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, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 /* 20 * 1. Block on a futex and wait for timeout. 21 * 2. Check that the futex waited for expected time. 22 */ 23 24 #include <errno.h> 25 26 #include "tst_timer_test.h" 27 #include "futextest.h" 28 29 int sample_fn(int clk_id, long long usec) 30 { 31 struct timespec to = tst_us_to_timespec(usec); 32 futex_t futex = FUTEX_INITIALIZER; 33 34 tst_timer_start(clk_id); 35 TEST(futex_wait(&futex, futex, &to, 0)); 36 tst_timer_stop(); 37 tst_timer_sample(); 38 39 if (TEST_RETURN != -1) { 40 tst_res(TFAIL, "futex_wait() returned %li, expected -1", 41 TEST_RETURN); 42 return 1; 43 } 44 45 if (TEST_ERRNO != ETIMEDOUT) { 46 tst_res(TFAIL | TTERRNO, "expected errno=%s", 47 tst_strerrno(ETIMEDOUT)); 48 return 1; 49 } 50 51 return 0; 52 } 53 54 static struct tst_test test = { 55 .scall = "futex_wait()", 56 .sample = sample_fn, 57 }; 58
