mirror of https://gitee.com/openkylin/linux.git
87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/******************************************************************************
|
|
*
|
|
* Copyright © International Business Machines Corp., 2009
|
|
*
|
|
* DESCRIPTION
|
|
* Block on a futex and wait for timeout.
|
|
*
|
|
* AUTHOR
|
|
* Darren Hart <dvhart@linux.intel.com>
|
|
*
|
|
* HISTORY
|
|
* 2009-Nov-6: Initial version by Darren Hart <dvhart@linux.intel.com>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include <errno.h>
|
|
#include <getopt.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include "futextest.h"
|
|
#include "logging.h"
|
|
|
|
#define TEST_NAME "futex-wait-timeout"
|
|
|
|
static long timeout_ns = 100000; /* 100us default timeout */
|
|
|
|
void usage(char *prog)
|
|
{
|
|
printf("Usage: %s\n", prog);
|
|
printf(" -c Use color\n");
|
|
printf(" -h Display this help message\n");
|
|
printf(" -t N Timeout in nanoseconds (default: 100,000)\n");
|
|
printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
|
|
VQUIET, VCRITICAL, VINFO);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
futex_t f1 = FUTEX_INITIALIZER;
|
|
struct timespec to;
|
|
int res, ret = RET_PASS;
|
|
int c;
|
|
|
|
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 't':
|
|
timeout_ns = atoi(optarg);
|
|
break;
|
|
case 'v':
|
|
log_verbosity(atoi(optarg));
|
|
break;
|
|
default:
|
|
usage(basename(argv[0]));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
ksft_print_header();
|
|
ksft_set_plan(1);
|
|
ksft_print_msg("%s: Block on a futex and wait for timeout\n",
|
|
basename(argv[0]));
|
|
ksft_print_msg("\tArguments: timeout=%ldns\n", timeout_ns);
|
|
|
|
/* initialize timeout */
|
|
to.tv_sec = 0;
|
|
to.tv_nsec = timeout_ns;
|
|
|
|
info("Calling futex_wait on f1: %u @ %p\n", f1, &f1);
|
|
res = futex_wait(&f1, f1, &to, FUTEX_PRIVATE_FLAG);
|
|
if (!res || errno != ETIMEDOUT) {
|
|
fail("futex_wait returned %d\n", ret < 0 ? errno : ret);
|
|
ret = RET_FAIL;
|
|
}
|
|
|
|
print_result(TEST_NAME, ret);
|
|
return ret;
|
|
}
|