Merge pull request ceph#9458 from jimwright/master

librados: Added declaration for rados_aio_get_version

Reviewed-by: Sage Weil <[email protected]>

src/include/rados/librados.h

@@ -1856,6 +1856,22 @@ CEPH_RADOS_API int rados_aio_is_safe_and_cb(rados_completion_t c);
  */
 CEPH_RADOS_API int rados_aio_get_return_value(rados_completion_t c);
 
+/**
+ * Get the internal object version of the target of an asychronous operation
+ *
+ * The return value is set when the operation is complete or safe,
+ * whichever comes first.
+ *
+ * @pre The operation is safe or complete
+ *
+ * @note BUG: complete callback may never be called when the safe
+ * message is received before the complete message
+ *
+ * @param c async operation to inspect
+ * @returns version number of the asychronous operation's target
+ */
+CEPH_RADOS_API uint64_t rados_aio_get_version(rados_completion_t c);
+
 /**
  * Release a completion
  *