iou: add iou_ring() iou->ring accessor

To enable direct use of more liburing helpers, we need to make
the ring struct available to external callers.

The immediate impetus for adding this is registering files...

2 files changed, 12 insertions, 0 deletions

diff --git a/src/iou.c b/src/iou.c
index 6a07853..b7b83e7 100644
--- a/src/iou.c
+++ b/src/iou.c
@@ -243,3 +243,14 @@ int iou_resize(iou_t *iou, unsigned entries)
 
 	return io_uring_queue_init(entries, &iou->ring, 0);
 }
+
+
+/* Accessor for getting at the underlying io_uring struct for calling
+ * liburing helpers directly against, use with care.
+ */
+struct io_uring * iou_ring(iou_t *iou)
+{
+	assert(iou);
+
+	return &iou->ring;
+}
diff --git a/src/iou.h b/src/iou.h
index 0c7c5c2..6609e81 100644
--- a/src/iou.h
+++ b/src/iou.h
@@ -35,5 +35,6 @@ int iou_flush(iou_t *iou);
 int iou_run(iou_t *iou);
 int iou_quit(iou_t *iou);
 int iou_resize(iou_t *iou, unsigned entries);
+struct io_uring * iou_ring(iou_t *iou);
 
 #endif