collectors: Check for NULL set of collectors.

[sliver-openvswitch.git] / ovsdb / column.h

diff --git a/ovsdb/column.h b/ovsdb/column.h
index 5942151..eb1a383 100644 (file)
--- a/ovsdb/column.h
+++ b/ovsdb/column.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009 Nicira Networks
+/* Copyright (c) 2009, 2010 Nicira Networks
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,6 +47,7 @@ enum {
 struct ovsdb_column *ovsdb_column_create(
     const char *name, const char *comment, bool mutable, bool persistent,
     const struct ovsdb_type *);
+struct ovsdb_column *ovsdb_column_clone(const struct ovsdb_column *);
 void ovsdb_column_destroy(struct ovsdb_column *);
 
 struct ovsdb_error *ovsdb_column_from_json(const struct json *,
@@ -71,6 +72,7 @@ void ovsdb_column_set_clone(struct ovsdb_column_set *,
 struct ovsdb_error *ovsdb_column_set_from_json(const struct json *,
                                                const struct ovsdb_table *,
                                                struct ovsdb_column_set *);
+struct json *ovsdb_column_set_to_json(const struct ovsdb_column_set *);
 
 void ovsdb_column_set_add(struct ovsdb_column_set *,
                           const struct ovsdb_column *);