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Subject[PATCH v5 06/11] selftests: futex2: Add timeout test
Date
Adapt existing futex wait timeout file to test the same mechanism for
futex2. futex2 accepts only absolute 64bit timers, but supports both
monotonic and realtime clocks.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
---
.../futex/functional/futex_wait_timeout.c | 24 +++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/futex/functional/futex_wait_timeout.c b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
index 1f8f6daaf1e7..d20f54745c2e 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_timeout.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
@@ -17,6 +17,14 @@

#include <pthread.h>
#include "futextest.h"
+
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "futex2test.h"
#include "logging.h"

#define TEST_NAME "futex-wait-timeout"
@@ -92,8 +100,8 @@ static int futex_get_abs_timeout(clockid_t clockid, struct timespec *to,
int main(int argc, char *argv[])
{
futex_t f1 = FUTEX_INITIALIZER;
+ struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns};
int res, ret = RET_PASS;
- struct timespec to;
pthread_t thread;
int c;

@@ -118,7 +126,7 @@ 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 +183,18 @@ 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);

+ /* setting absolute monotonic timeout for futex2 */
+ if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))
+ return RET_FAIL;
+ res = futex2_wait(&f1, f1, FUTEX_32, &to);
+ test_timeout(res, &ret, "futex2_wait monotonic", ETIMEDOUT);
+
+ /* setting absolute realtime timeout for futex2 */
+ if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+ return RET_FAIL;
+ res = futex2_wait(&f1, f1, FUTEX_32 | FUTEX_CLOCK_REALTIME, &to);
+ test_timeout(res, &ret, "futex2_wait realtime", ETIMEDOUT);
+
ksft_print_cnts();
return ret;
}
--
2.32.0
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