X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Flist.h;h=8ffa797dbc12889e216042aa7fd74680caaa05f7;hb=a359d5ad700c7175c75134cce3cee8d87d19d67c;hp=013f0488240ad7c9b6fa47ef795ae2351ce35a1f;hpb=772ec52b896380f23b587bea4a5bf18edd22449d;p=openvswitch

diff --git a/lib/list.h b/lib/list.h
index 013f0488..8ffa797d 100644
--- a/lib/list.h
+++ b/lib/list.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,7 @@ struct list {
 #define LIST_INITIALIZER(LIST) { LIST, LIST }
 
 void list_init(struct list *);
+void list_poison(struct list *);
 
 /* List insertion. */
 void list_insert(struct list *, struct list *);
@@ -46,12 +47,14 @@ struct list *list_pop_front(struct list *);
 struct list *list_pop_back(struct list *);
 
 /* List elements. */
-struct list *list_front(struct list *);
-struct list *list_back(struct list *);
+struct list *list_front(const struct list *);
+struct list *list_back(const struct list *);
 
 /* List properties. */
 size_t list_size(const struct list *);
 bool list_is_empty(const struct list *);
+bool list_is_singleton(const struct list *);
+bool list_is_short(const struct list *);
 
 #define LIST_FOR_EACH(ITER, MEMBER, LIST)                               \
     for (ASSIGN_CONTAINER(ITER, (LIST)->next, MEMBER);                  \