112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright © International Business Machines Corp., 2009
|
||
|
|
*
|
||
|
|
* DESCRIPTION
|
||
|
|
* Test if FUTEX_WAIT op returns -EWOULDBLOCK if the futex value differs
|
||
|
|
* from the expected one.
|
||
|
|
*
|
||
|
|
* AUTHOR
|
||
|
|
* Gowrishankar <gowrishankar.m@in.ibm.com>
|
||
|
|
*
|
||
|
|
* HISTORY
|
||
|
|
* 2009-Nov-14: Initial version by Gowrishankar <gowrishankar.m@in.ibm.com>
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <getopt.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <time.h>
|
||
|
|
#include "futextest.h"
|
||
|
|
#include "futex2test.h"
|
||
|
|
#include "logging.h"
|
||
|
|
|
||
|
|
#define TEST_NAME "futex-wait-wouldblock"
|
||
|
|
#define timeout_ns 100000
|
||
|
|
|
||
|
|
void usage(char *prog)
|
||
|
|
{
|
||
|
|
printf("Usage: %s\n", prog);
|
||
|
|
printf(" -c Use color\n");
|
||
|
|
printf(" -h Display this help message\n");
|
||
|
|
printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
|
||
|
|
VQUIET, VCRITICAL, VINFO);
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns};
|
||
|
|
futex_t f1 = FUTEX_INITIALIZER;
|
||
|
|
int res, ret = RET_PASS;
|
||
|
|
int c;
|
||
|
|
struct futex_waitv waitv = {
|
||
|
|
.uaddr = (uintptr_t)&f1,
|
||
|
|
.val = f1+1,
|
||
|
|
.flags = FUTEX_32,
|
||
|
|
.__reserved = 0
|
||
|
|
};
|
||
|
|
|
||
|
|
while ((c = getopt(argc, argv, "cht:v:")) != -1) {
|
||
|
|
switch (c) {
|
||
|
|
case 'c':
|
||
|
|
log_color(1);
|
||
|
|
break;
|
||
|
|
case 'h':
|
||
|
|
usage(basename(argv[0]));
|
||
|
|
exit(0);
|
||
|
|
case 'v':
|
||
|
|
log_verbosity(atoi(optarg));
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
usage(basename(argv[0]));
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ksft_print_header();
|
||
|
|
ksft_set_plan(2);
|
||
|
|
ksft_print_msg("%s: Test the unexpected futex value in FUTEX_WAIT\n",
|
||
|
|
basename(argv[0]));
|
||
|
|
|
||
|
|
info("Calling futex_wait on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
|
||
|
|
res = futex_wait(&f1, f1+1, &to, FUTEX_PRIVATE_FLAG);
|
||
|
|
if (!res || errno != EWOULDBLOCK) {
|
||
|
|
ksft_test_result_fail("futex_wait returned: %d %s\n",
|
||
|
|
res ? errno : res,
|
||
|
|
res ? strerror(errno) : "");
|
||
|
|
ret = RET_FAIL;
|
||
|
|
} else {
|
||
|
|
ksft_test_result_pass("futex_wait\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (clock_gettime(CLOCK_MONOTONIC, &to)) {
|
||
|
|
error("clock_gettime failed\n", errno);
|
||
|
|
return errno;
|
||
|
|
}
|
||
|
|
|
||
|
|
to.tv_nsec += timeout_ns;
|
||
|
|
|
||
|
|
if (to.tv_nsec >= 1000000000) {
|
||
|
|
to.tv_sec++;
|
||
|
|
to.tv_nsec -= 1000000000;
|
||
|
|
}
|
||
|
|
|
||
|
|
info("Calling futex_waitv on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
|
||
|
|
res = futex_waitv(&waitv, 1, 0, &to, CLOCK_MONOTONIC);
|
||
|
|
if (!res || errno != EWOULDBLOCK) {
|
||
|
|
ksft_test_result_pass("futex_waitv returned: %d %s\n",
|
||
|
|
res ? errno : res,
|
||
|
|
res ? strerror(errno) : "");
|
||
|
|
ret = RET_FAIL;
|
||
|
|
} else {
|
||
|
|
ksft_test_result_pass("futex_waitv\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
ksft_print_cnts();
|
||
|
|
return ret;
|
||
|
|
}
|