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selftests: winesync: Add tests for alertable waits.
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Signed-off-by: Alexandre Frade <kernel@xanmod.org>
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@xanmod
Zebediah Figura authored and xanmod committed Aug 2, 2022
1 parent 33fee21 commit 895b83e
Showing 1 changed file with 188 additions and 3 deletions.
191 changes: 188 additions & 3 deletions tools/testing/selftests/drivers/winesync/winesync.c
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Original file line number Diff line number Diff line change
Expand Up @@ -110,7 +110,7 @@ static int read_event_state(int fd, __u32 event, __u32 *signaled, __u32 *manual)
})

static int wait_objs(int fd, unsigned long request, __u32 count,
const __u32 *objs, __u32 owner, __u32 *index)
const __u32 *objs, __u32 owner, __u32 alert, __u32 *index)
{
struct winesync_wait_args args = {0};
struct timespec timeout;
Expand All @@ -123,6 +123,7 @@ static int wait_objs(int fd, unsigned long request, __u32 count,
args.objs = (uintptr_t)objs;
args.owner = owner;
args.index = 0xdeadbeef;
args.alert = alert;
ret = ioctl(fd, request, &args);
*index = args.index;
return ret;
Expand All @@ -131,13 +132,29 @@ static int wait_objs(int fd, unsigned long request, __u32 count,
static int wait_any(int fd, __u32 count, const __u32 *objs,
__u32 owner, __u32 *index)
{
return wait_objs(fd, WINESYNC_IOC_WAIT_ANY, count, objs, owner, index);
return wait_objs(fd, WINESYNC_IOC_WAIT_ANY,
count, objs, owner, 0, index);
}

static int wait_all(int fd, __u32 count, const __u32 *objs,
__u32 owner, __u32 *index)
{
return wait_objs(fd, WINESYNC_IOC_WAIT_ALL, count, objs, owner, index);
return wait_objs(fd, WINESYNC_IOC_WAIT_ALL,
count, objs, owner, 0, index);
}

static int wait_any_alert(int fd, __u32 count, const __u32 *objs,
__u32 owner, __u32 alert, __u32 *index)
{
return wait_objs(fd, WINESYNC_IOC_WAIT_ANY,
count, objs, owner, alert, index);
}

static int wait_all_alert(int fd, __u32 count, const __u32 *objs,
__u32 owner, __u32 alert, __u32 *index)
{
return wait_objs(fd, WINESYNC_IOC_WAIT_ALL,
count, objs, owner, alert, index);
}

TEST(semaphore_state)
Expand Down Expand Up @@ -1225,4 +1242,172 @@ TEST(wake_all)
close(fd);
}

TEST(alert_any)
{
struct winesync_event_args event_args = {0};
struct winesync_sem_args sem_args = {0};
__u32 objs[2], index;
int fd, ret;

fd = open("/dev/winesync", O_CLOEXEC | O_RDONLY);
ASSERT_LE(0, fd);

sem_args.count = 0;
sem_args.max = 2;
sem_args.sem = 0xdeadbeef;
ret = ioctl(fd, WINESYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_EQ(0, ret);
EXPECT_NE(0xdeadbeef, sem_args.sem);
objs[0] = sem_args.sem;

sem_args.count = 1;
sem_args.max = 2;
sem_args.sem = 0xdeadbeef;
ret = ioctl(fd, WINESYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_EQ(0, ret);
EXPECT_NE(0xdeadbeef, sem_args.sem);
objs[1] = sem_args.sem;

event_args.manual = true;
event_args.signaled = true;
ret = ioctl(fd, WINESYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_EQ(0, ret);

ret = wait_any_alert(fd, 0, NULL, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);

ret = ioctl(fd, WINESYNC_IOC_RESET_EVENT, &event_args);
EXPECT_EQ(0, ret);

ret = wait_any_alert(fd, 0, NULL, 123, event_args.event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);

ret = ioctl(fd, WINESYNC_IOC_SET_EVENT, &event_args);
EXPECT_EQ(0, ret);

ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(1, index);

ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &event_args.event);
EXPECT_EQ(0, ret);

/* test with an auto-reset event */

event_args.manual = false;
event_args.signaled = true;
ret = ioctl(fd, WINESYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_EQ(0, ret);

sem_args.sem = objs[0];
sem_args.count = 1;
ret = ioctl(fd, WINESYNC_IOC_PUT_SEM, &sem_args);
EXPECT_EQ(0, ret);

ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);

ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);

ret = wait_any_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &event_args.event);
EXPECT_EQ(0, ret);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &objs[0]);
EXPECT_EQ(0, ret);
ret = ioctl(fd, WINESYNC_IOC_DELETE, &objs[1]);
EXPECT_EQ(0, ret);

close(fd);
}

TEST(alert_all)
{
struct winesync_event_args event_args = {0};
struct winesync_sem_args sem_args = {0};
__u32 objs[2], index;
int fd, ret;

fd = open("/dev/winesync", O_CLOEXEC | O_RDONLY);
ASSERT_LE(0, fd);

sem_args.count = 2;
sem_args.max = 2;
sem_args.sem = 0xdeadbeef;
ret = ioctl(fd, WINESYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_EQ(0, ret);
EXPECT_NE(0xdeadbeef, sem_args.sem);
objs[0] = sem_args.sem;

sem_args.count = 1;
sem_args.max = 2;
sem_args.sem = 0xdeadbeef;
ret = ioctl(fd, WINESYNC_IOC_CREATE_SEM, &sem_args);
EXPECT_EQ(0, ret);
EXPECT_NE(0xdeadbeef, sem_args.sem);
objs[1] = sem_args.sem;

event_args.manual = true;
event_args.signaled = true;
ret = ioctl(fd, WINESYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_EQ(0, ret);

ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);

ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &event_args.event);
EXPECT_EQ(0, ret);

/* test with an auto-reset event */

event_args.manual = false;
event_args.signaled = true;
ret = ioctl(fd, WINESYNC_IOC_CREATE_EVENT, &event_args);
EXPECT_EQ(0, ret);

sem_args.sem = objs[1];
sem_args.count = 2;
ret = ioctl(fd, WINESYNC_IOC_PUT_SEM, &sem_args);
EXPECT_EQ(0, ret);

ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(0, index);

ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(0, ret);
EXPECT_EQ(2, index);

ret = wait_all_alert(fd, 2, objs, 123, event_args.event, &index);
EXPECT_EQ(-1, ret);
EXPECT_EQ(ETIMEDOUT, errno);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &event_args.event);
EXPECT_EQ(0, ret);

ret = ioctl(fd, WINESYNC_IOC_DELETE, &objs[0]);
EXPECT_EQ(0, ret);
ret = ioctl(fd, WINESYNC_IOC_DELETE, &objs[1]);
EXPECT_EQ(0, ret);

close(fd);
}

TEST_HARNESS_MAIN

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