[Spice-devel] [RFC spice-common 2/2] ring: allow testing if a ring is initialized or not

[Kevin Pouget]

---
 common/ring.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/ring.h b/common/ring.h
index 5054193..d5eadea 100644
--- a/common/ring.h
+++ b/common/ring.h
@@ -50,6 +50,11 @@ static inline int ring_is_empty(Ring *ring)
     return ring == ring->next;
 }

+static inline int ring_is_initialized(Ring *ring)
+{
+    return ring->next != NULL && ring->prev != NULL;
+}
+
 static inline void ring_add(Ring *ring, RingItem *item)
 {
     spice_assert(ring->next != NULL && ring->prev != NULL);
--
2.21.0