DynamicExtension: adjusted a few operations to ensure conistency

get_memory_usage, get_aux_memory_usage, get_record_count,
get_tombstone_count, and create_static_structure have been adjusted to
ensure that they pull from a consistent epoch, even if a change-over
occurs midway through the function.

These functions also now register with the epoch as a job, to ensure that
the epoch they are operating own isn't retired midway through the
function. Probably not a big issue for the accessors, but I could see it
being very important for create_static_structure.

1 files changed, 4 insertions, 0 deletions

diff --git a/include/framework/structure/BufferView.h b/include/framework/structure/BufferView.h
index 14abedc..8dff2ef 100644
--- a/include/framework/structure/BufferView.h
+++ b/include/framework/structure/BufferView.h
@@ -116,6 +116,10 @@ public:
         return m_buffers;
     }
 
+    size_t size() {
+        return m_buffers.size();
+    }
+
 private:
     std::vector<Buffer *> m_buffers;
     size_t m_cutoff;