Commit d2083b5f authored by Elizabeth Figura's avatar Elizabeth Figura Committed by Greg Kroah-Hartman
Browse files

selftests: ntsync: Add some tests for manual-reset event state. 



Test event-specific ioctls NTSYNC_IOC_EVENT_SET, NTSYNC_IOC_EVENT_RESET,
NTSYNC_IOC_EVENT_PULSE, NTSYNC_IOC_EVENT_READ for manual-reset events, and
waiting on manual-reset events.

Signed-off-by: default avatarElizabeth Figura <zfigura@codeweavers.com>
Link: https://lore.kernel.org/r/20241213193511.457338-23-zfigura@codeweavers.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 72a651c1

tools/testing/selftests/drivers/ntsync/ntsync.c

+86 −0
Original line number Diff line number Diff line
@@ -73,6 +73,27 @@ static int unlock_mutex(int mutex, __u32 owner, __u32 *count) 
	return ret;

}



static int read_event_state(int event, __u32 *signaled, __u32 *manual)

{

	struct ntsync_event_args args;

	int ret;



	memset(&args, 0xcc, sizeof(args));

	ret = ioctl(event, NTSYNC_IOC_EVENT_READ, &args);

	*signaled = args.signaled;

	*manual = args.manual;

	return ret;

}



#define check_event_state(event, signaled, manual) \

	({ \

		__u32 __signaled, __manual; \

		int ret = read_event_state((event), &__signaled, &__manual); \

		EXPECT_EQ(0, ret); \

		EXPECT_EQ((signaled), __signaled); \

		EXPECT_EQ((manual), __manual); \

	})



static int wait_objs(int fd, unsigned long request, __u32 count,

		     const int *objs, __u32 owner, __u32 *index)

{
@@ -340,6 +361,71 @@ TEST(mutex_state) 
	close(fd);

}



TEST(manual_event_state)

{

	struct ntsync_event_args event_args;

	__u32 index, signaled;

	int fd, event, ret;



	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);

	ASSERT_LE(0, fd);



	event_args.manual = 1;

	event_args.signaled = 0;

	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);

	EXPECT_LE(0, event);

	check_event_state(event, 0, 1);



	signaled = 0xdeadbeef;

	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(0, signaled);

	check_event_state(event, 1, 1);



	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(1, signaled);

	check_event_state(event, 1, 1);



	ret = wait_any(fd, 1, &event, 123, &index);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(0, index);

	check_event_state(event, 1, 1);



	signaled = 0xdeadbeef;

	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(1, signaled);

	check_event_state(event, 0, 1);



	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(0, signaled);

	check_event_state(event, 0, 1);



	ret = wait_any(fd, 1, &event, 123, &index);

	EXPECT_EQ(-1, ret);

	EXPECT_EQ(ETIMEDOUT, errno);



	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(0, signaled);



	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(1, signaled);

	check_event_state(event, 0, 1);



	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);

	EXPECT_EQ(0, ret);

	EXPECT_EQ(0, signaled);

	check_event_state(event, 0, 1);



	close(event);



	close(fd);

}



TEST(test_wait_any)

{

	int objs[NTSYNC_MAX_WAIT_COUNT + 1], fd, ret;