Commit 02e56ccb authored by André Almeida's avatar André Almeida Committed by Peter Zijlstra
Browse files

selftests: futex: Test sys_futex_waitv() timeout 



Test if the futex_waitv timeout is working as expected, using the
supported clockid options.

Signed-off-by: default avatarAndré Almeida <andrealmeid@collabora.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210923171111.300673-21-andrealmeid@collabora.com
parent 5e59c1d1

tools/testing/selftests/futex/functional/futex_wait_timeout.c

+20 −1
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 


#include <pthread.h>

#include "futextest.h"

#include "futex2test.h"

#include "logging.h"



#define TEST_NAME "futex-wait-timeout"
@@ -96,6 +97,12 @@ int main(int argc, char *argv[]) 
	struct timespec to;

	pthread_t thread;

	int c;

	struct futex_waitv waitv = {

			.uaddr = (uintptr_t)&f1,

			.val = f1,

			.flags = FUTEX_32,

			.__reserved = 0

		};



	while ((c = getopt(argc, argv, "cht:v:")) != -1) {

		switch (c) {
@@ -118,7 +125,7 @@ int main(int argc, char *argv[]) 
	}



	ksft_print_header();

	ksft_set_plan(7);

	ksft_set_plan(9);

	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);
@@ -175,6 +182,18 @@ int main(int argc, char *argv[]) 
	res = futex_lock_pi(&futex_pi, NULL, 0, FUTEX_CLOCK_REALTIME);

	test_timeout(res, &ret, "futex_lock_pi invalid timeout flag", ENOSYS);



	/* futex_waitv with CLOCK_MONOTONIC */

	if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))

		return RET_FAIL;

	res = futex_waitv(&waitv, 1, 0, &to, CLOCK_MONOTONIC);

	test_timeout(res, &ret, "futex_waitv monotonic", ETIMEDOUT);



	/* futex_waitv with CLOCK_REALTIME */

	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))

		return RET_FAIL;

	res = futex_waitv(&waitv, 1, 0, &to, CLOCK_REALTIME);

	test_timeout(res, &ret, "futex_waitv realtime", ETIMEDOUT);



	ksft_print_cnts();

	return ret;

}