Add test case for commit 7ad0e4b2f83c

Signed-off-by: Jens Axboe <axboe@kernel.dk>

test/7ad0e4b2f83c-test.c

diff --git a/test/7ad0e4b2f83c-test.c b/test/7ad0e4b2f83c-test.c
new file mode 100644
index 0000000..1abde44
--- /dev/null
+++ b/test/7ad0e4b2f83c-test.c
@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#include "liburing.h"
+
+static unsigned long long mtime_since(const struct timeval *s,
+				      const struct timeval *e)
+{
+	long long sec, usec;
+
+	sec = e->tv_sec - s->tv_sec;
+	usec = (e->tv_usec - s->tv_usec);
+	if (sec > 0 && usec < 0) {
+		sec--;
+		usec += 1000000;
+	}
+
+	sec *= 1000;
+	usec /= 1000;
+	return sec + usec;
+}
+
+static unsigned long long mtime_since_now(struct timeval *tv)
+{
+	struct timeval end;
+
+	gettimeofday(&end, NULL);
+	return mtime_since(tv, &end);
+}
+
+int main(int argc, char *argv[])
+{
+	struct __kernel_timespec ts1, ts2;
+	struct io_uring_cqe *cqe;
+	struct io_uring_sqe *sqe;
+	struct io_uring ring;
+	unsigned long msec;
+	struct timeval tv;
+	int ret;
+
+	ret = io_uring_queue_init(32, &ring, 0);
+	if (ret) {
+		fprintf(stderr, "io_uring_queue_init=%d\n", ret);
+		return 1;
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	io_uring_prep_nop(sqe);
+	ret = io_uring_submit(&ring);
+	if (ret != 1) {
+		fprintf(stderr, "io_uring_submit1=%d\n", ret);
+		return 1;
+	}
+
+
+	ts1.tv_sec = 5,
+	ts1.tv_nsec = 0;
+	ret = io_uring_wait_cqe_timeout(&ring, &cqe, &ts1);
+	if (ret) {
+		fprintf(stderr, "io_uring_wait_cqe_timeout=%d\n", ret);
+		return 1;
+	}
+	io_uring_cqe_seen(&ring, cqe);
+	gettimeofday(&tv, NULL);
+
+	ts2.tv_sec = 1;
+	ts2.tv_nsec = 0;
+	sqe = io_uring_get_sqe(&ring);
+	io_uring_prep_timeout(sqe, &ts2, 0, 0);
+	sqe->user_data = 89;
+	ret = io_uring_submit(&ring);
+	if (ret != 1) {
+		fprintf(stderr, "io_uring_submit2=%d\n", ret);
+		return 1;
+	}
+
+	io_uring_wait_cqe(&ring, &cqe);
+	io_uring_cqe_seen(&ring, cqe);
+	msec = mtime_since_now(&tv);
+	if (msec >= 900 && msec <= 1100) {
+		io_uring_queue_exit(&ring);
+		return 0;
+	}
+
+	fprintf(stderr, "%s: Timeout seems wonky (got %lu)\n", __FUNCTION__,
+								msec);
+	io_uring_queue_exit(&ring);
+	return 1;
+}

test/Makefile

diff --git a/test/Makefile b/test/Makefile
index eb83bc1..69ebdbf 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -17,7 +17,7 @@
 		link-timeout cq-overflow link_drain fc2a85cb02ef-test \
 		poll-link accept-link fixed-link poll-cancel-ton teardowns \
 		poll-many b5837bd5311d-test accept-test d77a67ed5f27-test \
-		connect
+		connect 7ad0e4b2f83c-test
 
 include ../Makefile.quiet
 
@@ -36,7 +36,8 @@
 	timeout-overflow.c defer.c read-write.c io-cancel.c link-timeout.c \
 	cq-overflow.c link_drain.c fc2a85cb02ef-test.c poll-link.c \
 	accept-link.c fixed-link.c poll-cancel-ton.c teardowns.c poll-many.c \
-	b5837bd5311d-test.c accept-test.c d77a67ed5f27-test.c connect.c
+	b5837bd5311d-test.c accept-test.c d77a67ed5f27-test.c connect.c \
+	7ad0e4b2f83c-test.c
 
 test_objs := $(patsubst %.c,%.ol,$(test_srcs))