88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
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* Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
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*
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* Based on futextest (futext_wait_timeout.c and futex_wait_ewouldblock.c)
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* written by Darren Hart <dvhltc@us.ibm.com>
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* Gowrishankar <gowrishankar.m@in.ibm.com>
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*
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* Licensed under the GNU GPLv2 or later.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* 1. Block on a futex and wait for timeout.
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* 2. Test if FUTEX_WAIT op returns -EWOULDBLOCK if the futex value differs
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* from the expected one.
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*/
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#include <errno.h>
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#include "test.h"
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#include "futextest.h"
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const char *TCID="futex_wait01";
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struct testcase {
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futex_t *f_addr;
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futex_t f_val;
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int opflags;
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int exp_errno;
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};
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static futex_t futex = FUTEX_INITIALIZER;
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static struct timespec to = {.tv_sec = 0, .tv_nsec = 10000};
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static struct testcase testcases[] = {
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{&futex, FUTEX_INITIALIZER, 0, ETIMEDOUT},
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{&futex, FUTEX_INITIALIZER+1, 0, EWOULDBLOCK},
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{&futex, FUTEX_INITIALIZER, FUTEX_PRIVATE_FLAG, ETIMEDOUT},
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{&futex, FUTEX_INITIALIZER+1, FUTEX_PRIVATE_FLAG, EWOULDBLOCK},
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};
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const int TST_TOTAL=ARRAY_SIZE(testcases);
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static void verify_futex_wait(struct testcase *tc)
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{
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int res;
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res = futex_wait(tc->f_addr, tc->f_val, &to, tc->opflags);
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if (res != -1) {
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tst_resm(TFAIL, "futex_wait() returned %i, expected -1", res);
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return;
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}
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if (errno != tc->exp_errno) {
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tst_resm(TFAIL | TERRNO, "expected errno=%s",
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tst_strerrno(tc->exp_errno));
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return;
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}
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tst_resm(TPASS | TERRNO, "futex_wait()");
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}
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int main(int argc, char *argv[])
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{
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int lc, i;
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tst_parse_opts(argc, argv, NULL, NULL);
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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for (i = 0; i < TST_TOTAL; i++)
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verify_futex_wait(testcases + i);
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}
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tst_exit();
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}
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