X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fvlan-bitmap.h;h=3e2e82062dc2e099f026c75afec9e3596d786450;hb=28c5588e8e1a8d091c5d2275232c35f2968a97fa;hp=eca42fea9cf01c63ff730134b19265bc9c30fff0;hpb=0fb7b9156ac7d319a51890630857698ad1877335;p=sliver-openvswitch.git

diff --git a/lib/vlan-bitmap.h b/lib/vlan-bitmap.h
index eca42fea9..3e2e82062 100644
--- a/lib/vlan-bitmap.h
+++ b/lib/vlan-bitmap.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2011 Nicira Networks
+/* Copyright (c) 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.
@@ -22,19 +22,22 @@
 
 /* A "VLAN bitmap" is a 4096-bit bitmap that represents a set.  A 1-bit
  * indicates that the respective VLAN is a member of the set, a 0-bit indicates
- * that it is not.  There is one wrinkle: NULL indicates that every VLAN is a
- * member of the set.
+ * that it is not.  There is one wrinkle: NULL is a valid value that indicates
+ * either that all VLANs are or are not members, depending on the vlan_bitmap.
  *
  * This is empirically a useful data structure. */
 
 unsigned long *vlan_bitmap_from_array(const int64_t *vlans, size_t n_vlans);
+int vlan_bitmap_from_array__(const int64_t *vlans, size_t n_vlans,
+                             unsigned long int *b);
+
 bool vlan_bitmap_equal(const unsigned long *a, const unsigned long *b);
 
-/* Returns true if 'vid', in the range [0,4095], is a member of 'vlans'. */
-static inline bool
-vlan_bitmap_contains(const unsigned long *vlans, uint16_t vid)
+/* Returns a new copy of 'vlans'. */
+static inline unsigned long *
+vlan_bitmap_clone(const unsigned long *vlans)
 {
-    return !vlans || bitmap_is_set(vlans, vid);
+    return vlans ? bitmap_clone(vlans, 4096) : NULL;
 }
 
 #endif /* lib/vlan-bitmap.h */