[PATCH liburing v4 2/3] register: expose a query helper

[Pavel Begunkov <asml.silence@gmail.com>]

Expose a simple wrapper around IORING_REGISTER_QUERY to users.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 src/include/liburing.h | 2 ++
 src/liburing-ffi.map   | 3 ++-
 src/liburing.map       | 3 ++-
 src/register.c         | 7 +++++++
 test/ring-query.c      | 7 -------
 5 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/include/liburing.h b/src/include/liburing.h
index 3d4c6422..7eab7e42 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -359,6 +359,8 @@ int io_uring_register_clock(struct io_uring *ring,
 int io_uring_get_events(struct io_uring *ring) LIBURING_NOEXCEPT;
 int io_uring_submit_and_get_events(struct io_uring *ring) LIBURING_NOEXCEPT;
 
+int io_uring_query(struct io_uring *ring, struct io_uring_query_hdr *arg);
+
 /*
  * io_uring syscalls.
  */
diff --git a/src/liburing-ffi.map b/src/liburing-ffi.map
index 4bf4fd51..6eed3f9f 100644
--- a/src/liburing-ffi.map
+++ b/src/liburing-ffi.map
@@ -253,5 +253,6 @@ LIBURING_2.12 {
 } LIBURING_2.11;
 
 LIBURING_2.13 {
-
+	global:
+		io_uring_query;
 } LIBURING_2.12;
diff --git a/src/liburing.map b/src/liburing.map
index 0c4888e1..92c2af7b 100644
--- a/src/liburing.map
+++ b/src/liburing.map
@@ -132,5 +132,6 @@ LIBURING_2.12 {
 } LIBURING_2.11;
 
 LIBURING_2.13 {
-
+	global:
+		io_uring_query;
 } LIBURING_2.12;
diff --git a/src/register.c b/src/register.c
index 93eda3fc..7265dcca 100644
--- a/src/register.c
+++ b/src/register.c
@@ -513,3 +513,10 @@ int io_uring_set_iowait(struct io_uring *ring, bool enable_iowait)
 		ring->int_flags |= INT_FLAG_NO_IOWAIT;
 	return 0;
 }
+
+int io_uring_query(struct io_uring *ring, struct io_uring_query_hdr *arg)
+{
+	int fd = ring ? ring->ring_fd : -1;
+
+	return io_uring_register(fd, IORING_REGISTER_QUERY, arg, 0);
+}
diff --git a/test/ring-query.c b/test/ring-query.c
index d0aa396c..e266b4a9 100644
--- a/test/ring-query.c
+++ b/test/ring-query.c
@@ -27,13 +27,6 @@ struct io_uring_query_opcode_large {
 
 static struct io_uring_query_opcode sys_ops;
 
-static int io_uring_query(struct io_uring *ring, struct io_uring_query_hdr *arg)
-{
-	int fd = ring ? ring->ring_fd : -1;
-
-	return io_uring_register(fd, IORING_REGISTER_QUERY, arg, 0);
-}
-
 static int test_basic_query(void)
 {
 	struct io_uring_query_opcode op = {};
-- 
2.49.0