From: Elizabeth Figura <zfigura@codeweavers.com>
To: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
wine-devel@winehq.org, "André Almeida" <andrealmeid@igalia.com>,
"Wolfram Sang" <wsa@kernel.org>,
"Arkadiusz Hiler" <ahiler@codeweavers.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Andy Lutomirski" <luto@kernel.org>,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
"Elizabeth Figura" <zfigura@codeweavers.com>
Subject: [PATCH 19/31] selftests: ntsync: Add some tests for mutex state.
Date: Wed, 14 Feb 2024 17:52:54 -0600 [thread overview]
Message-ID: <20240214235307.10494-10-zfigura@codeweavers.com> (raw)
In-Reply-To: <20240214235307.10494-1-zfigura@codeweavers.com>
Test mutex-specific ioctls NTSYNC_IOC_MUTEX_UNLOCK and NTSYNC_IOC_MUTEX_READ,
and waiting on mutexes.
Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com>
---
.../testing/selftests/drivers/ntsync/ntsync.c | 196 ++++++++++++++++++
1 file changed, 196 insertions(+)
diff --git a/tools/testing/selftests/drivers/ntsync/ntsync.c b/tools/testing/selftests/drivers/ntsync/ntsync.c
index bda88233b427..d2c0c97839ba 100644
--- a/tools/testing/selftests/drivers/ntsync/ntsync.c
+++ b/tools/testing/selftests/drivers/ntsync/ntsync.c
@@ -40,6 +40,39 @@ static int post_sem(int sem, __u32 *count)
return ioctl(sem, NTSYNC_IOC_SEM_POST, count);
}
+static int read_mutex_state(int mutex, __u32 *count, __u32 *owner)
+{
+ struct ntsync_mutex_args args;
+ int ret;
+
+ memset(&args, 0xcc, sizeof(args));
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &args);
+ *count = args.count;
+ *owner = args.owner;
+ return ret;
+}
+
+#define check_mutex_state(mutex, count, owner) \
+ ({ \
+ __u32 __count, __owner; \
+ int ret = read_mutex_state((mutex), &__count, &__owner); \
+ EXPECT_EQ(0, ret); \
+ EXPECT_EQ((count), __count); \
+ EXPECT_EQ((owner), __owner); \
+ })
+
+static int unlock_mutex(int mutex, __u32 owner, __u32 *count)
+{
+ struct ntsync_mutex_args args;
+ int ret;
+
+ args.owner = owner;
+ args.count = 0xdeadbeef;
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_UNLOCK, &args);
+ *count = args.count;
+ return ret;
+}
+
static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
{
struct ntsync_wait_args args = {0};
@@ -146,4 +179,167 @@ TEST(semaphore_state)
close(fd);
}
+TEST(mutex_state)
+{
+ struct ntsync_mutex_args mutex_args;
+ __u32 owner, count, index;
+ struct timespec timeout;
+ int fd, ret, mutex;
+
+ clock_gettime(CLOCK_MONOTONIC, &timeout);
+
+ fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+ ASSERT_LE(0, fd);
+
+ mutex_args.owner = 123;
+ mutex_args.count = 0;
+ ret = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+
+ mutex_args.owner = 0;
+ mutex_args.count = 2;
+ ret = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+
+ mutex_args.owner = 123;
+ mutex_args.count = 2;
+ mutex_args.mutex = 0xdeadbeef;
+ ret = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_EQ(0, ret);
+ EXPECT_NE(0xdeadbeef, mutex_args.mutex);
+ mutex = mutex_args.mutex;
+ check_mutex_state(mutex, 2, 123);
+
+ ret = unlock_mutex(mutex, 0, &count);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+
+ ret = unlock_mutex(mutex, 456, &count);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EPERM, errno);
+ check_mutex_state(mutex, 2, 123);
+
+ ret = unlock_mutex(mutex, 123, &count);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(2, count);
+ check_mutex_state(mutex, 1, 123);
+
+ ret = unlock_mutex(mutex, 123, &count);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(1, count);
+ check_mutex_state(mutex, 0, 0);
+
+ ret = unlock_mutex(mutex, 123, &count);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EPERM, errno);
+
+ ret = wait_any(fd, 1, &mutex, 456, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_mutex_state(mutex, 1, 456);
+
+ ret = wait_any(fd, 1, &mutex, 456, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_mutex_state(mutex, 2, 456);
+
+ ret = unlock_mutex(mutex, 456, &count);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(2, count);
+ check_mutex_state(mutex, 1, 456);
+
+ ret = wait_any(fd, 1, &mutex, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(ETIMEDOUT, errno);
+
+ owner = 0;
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+
+ owner = 123;
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EPERM, errno);
+ check_mutex_state(mutex, 1, 456);
+
+ owner = 456;
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+ EXPECT_EQ(0, ret);
+
+ memset(&mutex_args, 0xcc, sizeof(mutex_args));
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ EXPECT_EQ(0, mutex_args.count);
+ EXPECT_EQ(0, mutex_args.owner);
+
+ memset(&mutex_args, 0xcc, sizeof(mutex_args));
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ EXPECT_EQ(0, mutex_args.count);
+ EXPECT_EQ(0, mutex_args.owner);
+
+ ret = wait_any(fd, 1, &mutex, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ EXPECT_EQ(0, index);
+ check_mutex_state(mutex, 1, 123);
+
+ owner = 123;
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+ EXPECT_EQ(0, ret);
+
+ memset(&mutex_args, 0xcc, sizeof(mutex_args));
+ ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ EXPECT_EQ(0, mutex_args.count);
+ EXPECT_EQ(0, mutex_args.owner);
+
+ ret = wait_any(fd, 1, &mutex, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EOWNERDEAD, errno);
+ EXPECT_EQ(0, index);
+ check_mutex_state(mutex, 1, 123);
+
+ close(mutex);
+
+ mutex_args.owner = 0;
+ mutex_args.count = 0;
+ mutex_args.mutex = 0xdeadbeef;
+ ret = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_EQ(0, ret);
+ EXPECT_NE(0xdeadbeef, mutex_args.mutex);
+ mutex = mutex_args.mutex;
+ check_mutex_state(mutex, 0, 0);
+
+ ret = wait_any(fd, 1, &mutex, 123, &index);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ(0, index);
+ check_mutex_state(mutex, 1, 123);
+
+ close(mutex);
+
+ mutex_args.owner = 123;
+ mutex_args.count = ~0u;
+ mutex_args.mutex = 0xdeadbeef;
+ ret = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+ EXPECT_EQ(0, ret);
+ EXPECT_NE(0xdeadbeef, mutex_args.mutex);
+ mutex = mutex_args.mutex;
+ check_mutex_state(mutex, ~0u, 123);
+
+ ret = wait_any(fd, 1, &mutex, 123, &index);
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(ETIMEDOUT, errno);
+
+ close(mutex);
+
+ close(fd);
+}
+
TEST_HARNESS_MAIN
--
2.43.0
next prev parent reply other threads:[~2024-02-14 23:53 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-14 23:36 [PATCH 00/31] NT synchronization primitive driver Elizabeth Figura
2024-02-14 23:36 ` [PATCH 01/31] ntsync: Introduce the ntsync driver and character device Elizabeth Figura
2024-02-15 1:57 ` Randy Dunlap
2024-02-15 19:04 ` Elizabeth Figura
2024-02-14 23:36 ` [PATCH 02/31] ntsync: Introduce NTSYNC_IOC_CREATE_SEM Elizabeth Figura
2024-02-15 7:28 ` Greg Kroah-Hartman
2024-02-15 19:22 ` Elizabeth Figura
2024-02-17 8:03 ` Greg Kroah-Hartman
2024-02-19 19:02 ` Elizabeth Figura
2024-02-14 23:36 ` [PATCH 03/31] ntsync: Introduce NTSYNC_IOC_SEM_POST Elizabeth Figura
2024-02-14 23:36 ` [PATCH 04/31] ntsync: Introduce NTSYNC_IOC_WAIT_ANY Elizabeth Figura
2024-02-14 23:36 ` [PATCH 05/31] ntsync: Introduce NTSYNC_IOC_WAIT_ALL Elizabeth Figura
2024-02-14 23:36 ` [PATCH 06/31] ntsync: Introduce NTSYNC_IOC_CREATE_MUTEX Elizabeth Figura
2024-02-14 23:36 ` [PATCH 07/31] ntsync: Introduce NTSYNC_IOC_MUTEX_UNLOCK Elizabeth Figura
2024-02-14 23:36 ` [PATCH 08/31] ntsync: Introduce NTSYNC_IOC_MUTEX_KILL Elizabeth Figura
2024-02-14 23:36 ` [PATCH 09/31] ntsync: Introduce NTSYNC_IOC_CREATE_EVENT Elizabeth Figura
2024-02-14 23:52 ` [PATCH 10/31] ntsync: Introduce NTSYNC_IOC_EVENT_SET Elizabeth Figura
2024-02-14 23:52 ` [PATCH 11/31] ntsync: Introduce NTSYNC_IOC_EVENT_RESET Elizabeth Figura
2024-02-14 23:52 ` [PATCH 12/31] ntsync: Introduce NTSYNC_IOC_EVENT_PULSE Elizabeth Figura
2024-02-14 23:52 ` [PATCH 13/31] ntsync: Introduce NTSYNC_IOC_SEM_READ Elizabeth Figura
2024-02-14 23:52 ` [PATCH 14/31] ntsync: Introduce NTSYNC_IOC_MUTEX_READ Elizabeth Figura
2024-02-14 23:52 ` [PATCH 15/31] ntsync: Introduce NTSYNC_IOC_EVENT_READ Elizabeth Figura
2024-02-14 23:52 ` [PATCH 16/31] ntsync: Introduce alertable waits Elizabeth Figura
2024-02-14 23:52 ` [PATCH 17/31] ntsync: Allow waits to use the REALTIME clock Elizabeth Figura
2024-02-14 23:52 ` [PATCH 18/31] selftests: ntsync: Add some tests for semaphore state Elizabeth Figura
2024-02-14 23:52 ` Elizabeth Figura [this message]
2024-02-14 23:52 ` [PATCH 20/31] selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ANY Elizabeth Figura
2024-02-14 23:52 ` [PATCH 21/31] selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ALL Elizabeth Figura
2024-02-14 23:52 ` [PATCH 22/31] selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ANY Elizabeth Figura
2024-02-14 23:52 ` [PATCH 23/31] selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ALL Elizabeth Figura
2024-02-14 23:52 ` [PATCH 24/31] selftests: ntsync: Add some tests for manual-reset event state Elizabeth Figura
2024-02-14 23:53 ` [PATCH 25/31] selftests: ntsync: Add some tests for auto-reset " Elizabeth Figura
2024-02-14 23:53 ` [PATCH 26/31] selftests: ntsync: Add some tests for wakeup signaling with events Elizabeth Figura
2024-02-14 23:53 ` [PATCH 27/31] selftests: ntsync: Add tests for alertable waits Elizabeth Figura
2024-02-14 23:53 ` [PATCH 28/31] selftests: ntsync: Add some tests for wakeup signaling via alerts Elizabeth Figura
2024-02-14 23:53 ` [PATCH 29/31] selftests: ntsync: Add a stress test for contended waits Elizabeth Figura
2024-02-14 23:53 ` [PATCH 30/31] maintainers: Add an entry for ntsync Elizabeth Figura
2024-02-14 23:53 ` [PATCH 31/31] docs: ntsync: Add documentation for the ntsync uAPI Elizabeth Figura
2024-02-15 0:01 ` [PATCH 00/31] NT synchronization primitive driver Elizabeth Figura
2024-02-15 7:24 ` Greg Kroah-Hartman
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