| /* |
| * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * Licensed under the GNU GPLv2 or later. |
| * 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 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, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #define TRESHOLD_US 100000 |
| |
| static void verify_futex_wait_bitset(long long wait_us, clock_t clk_id) |
| { |
| struct timespec start, to, end; |
| futex_t futex = FUTEX_INITIALIZER; |
| u_int32_t bitset = 0xffffffff; |
| int flags = clk_id == CLOCK_REALTIME ? FUTEX_CLOCK_REALTIME : 0; |
| |
| tst_resm(TINFO, "testing futex_wait_bitset() timeout with %s", |
| clk_id == CLOCK_REALTIME ? "CLOCK_REALTIME" : "CLOCK_MONOTONIC"); |
| |
| clock_gettime(clk_id, &start); |
| to = tst_timespec_add_us(start, wait_us); |
| |
| TEST(futex_wait_bitset(&futex, futex, &to, bitset, flags)); |
| |
| clock_gettime(clk_id, &end); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "futex_wait_bitset() returned %li, expected -1", |
| TEST_RETURN); |
| return; |
| } |
| |
| if (TEST_ERRNO == ENOSYS) { |
| tst_resm(TCONF, "In this kernel, futex() does not support " |
| "FUTEX_WAIT_BITSET operation"); |
| return; |
| } |
| |
| if (TEST_ERRNO != ETIMEDOUT) { |
| tst_resm(TFAIL | TTERRNO, "expected %s", |
| tst_strerrno(ETIMEDOUT)); |
| return; |
| } |
| |
| if (tst_timespec_lt(end, to)) { |
| tst_resm(TFAIL, |
| "futex_wait_bitset() woken up prematurely %llius, expected %llius", |
| tst_timespec_diff_us(end, start), wait_us); |
| return; |
| } |
| |
| if (tst_timespec_diff_us(end, to) > TRESHOLD_US) { |
| tst_resm(TFAIL, |
| "futex_wait_bitset() waited too long %llius, expected %llius", |
| tst_timespec_diff_us(end, start), wait_us); |
| return; |
| } |
| |
| tst_resm(TPASS, "futex_wait_bitset() waited %llius, expected %llius", |
| tst_timespec_diff_us(end, start), wait_us); |
| } |