X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fhtable%2Fhtable.h;h=03193567d847a5512b31d173bcb8a21a6d54d09e;hb=4ad5144790a12523f8a7c24c469a34907b6942a6;hp=ed668e7405ed84e819cec49b85f8186b85287933;hpb=60cc720d0797fc49325437ea36a9ffd909c75ed0;p=ccan

diff --git a/ccan/htable/htable.h b/ccan/htable/htable.h
index ed668e74..03193567 100644
--- a/ccan/htable/htable.h
+++ b/ccan/htable/htable.h
@@ -51,6 +51,21 @@ struct htable {
 void htable_init(struct htable *ht,
 		 size_t (*rehash)(const void *elem, void *priv), void *priv);
 
+/**
+ * htable_init_sized - initialize an empty hash table of given size.
+ * @ht: the hash table to initialize
+ * @rehash: hash function to use for rehashing.
+ * @priv: private argument to @rehash function.
+ * @size: the number of element.
+ *
+ * If this returns false, @ht is still usable, but may need to do reallocation
+ * upon an add.  If this returns true, it will not need to reallocate within
+ * @size htable_adds.
+ */
+bool htable_init_sized(struct htable *ht,
+		       size_t (*rehash)(const void *elem, void *priv),
+		       void *priv, size_t size);
+
 /**
  * htable_clear - empty a hash table.
  * @ht: the hash table to clear