*
* Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
* Michael Clark <michael@metaparadigm.com>
+ * Copyright (c) 2009 Hewlett-Packard Development Company, L.P.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See COPYING for details.
const void* lh_table_lookup(struct lh_table *t, const void *k)
{
- struct lh_entry *e = lh_table_lookup_entry(t, k);
- if(e) return e->v;
- return NULL;
+ void *result;
+ lh_table_lookup_ex(t, k, &result);
+ return result;
}
+json_bool lh_table_lookup_ex(struct lh_table* t, const void* k, void **v)
+{
+ struct lh_entry *e = lh_table_lookup_entry(t, k);
+ if (e != NULL) {
+ if (v != NULL) *v = (void *)e->v;
+ return TRUE; /* key found */
+ }
+ if (v != NULL) *v = NULL;
+ return FALSE; /* key not found */
+}
int lh_table_delete_entry(struct lh_table *t, struct lh_entry *e)
{
*
* Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
* Michael Clark <michael@metaparadigm.com>
+ * Copyright (c) 2009 Hewlett-Packard Development Company, L.P.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See COPYING for details.
#ifndef _linkhash_h_
#define _linkhash_h_
+#include "json_object.h"
+
#ifdef __cplusplus
extern "C" {
#endif
* @param t the table to lookup
* @param k a pointer to the key to lookup
* @return a pointer to the found value or NULL if it does not exist.
+ * @deprecated Use lh_table_lookup_ex instead.
*/
extern const void* lh_table_lookup(struct lh_table *t, const void *k);
+/**
+ * Lookup a record in the table
+ * @param t the table to lookup
+ * @param k a pointer to the key to lookup
+ * @param v a pointer to a where to store the found value (set to NULL if it doesn't exist).
+ * @return whether or not the key was found
+ */
+extern json_bool lh_table_lookup_ex(struct lh_table *t, const void *k, void **v);
/**
* Delete a record from the table.