1 files changed, 114 insertions, 0 deletions
diff --git a/contrib/libucl/ucl_hash.h b/contrib/libucl/ucl_hash.h
new file mode 100644
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+++ b/contrib/libucl/ucl_hash.h
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+/* Copyright (c) 2013, Vsevolod Stakhov
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *       * Redistributions of source code must retain the above copyright
+ *         notice, this list of conditions and the following disclaimer.
+ *       * Redistributions in binary form must reproduce the above copyright
+ *         notice, this list of conditions and the following disclaimer in the
+ *         documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __UCL_HASH_H
+#define __UCL_HASH_H
+
+#include "ucl.h"
+
+/******************************************************************************/
+
+struct ucl_hash_node_s;
+typedef struct ucl_hash_node_s ucl_hash_node_t;
+
+typedef int (*ucl_hash_cmp_func) (const void* void_a, const void* void_b);
+typedef void (*ucl_hash_free_func) (void *ptr);
+typedef void* ucl_hash_iter_t;
+
+
+/**
+ * Linear chained hashtable.
+ */
+struct ucl_hash_struct;
+typedef struct ucl_hash_struct ucl_hash_t;
+
+
+/**
+ * Initializes the hashtable.
+ */
+ucl_hash_t* ucl_hash_create (bool ignore_case);
+
+/**
+ * Deinitializes the hashtable.
+ */
+void ucl_hash_destroy (ucl_hash_t* hashlin, ucl_hash_free_func func);
+
+/**
+ * Inserts an element in the the hashtable.
+ * @return true on success, false on failure (i.e. ENOMEM)
+ */
+bool ucl_hash_insert (ucl_hash_t* hashlin, const ucl_object_t *obj, const char *key,
+		unsigned keylen);
+
+/**
+ * Replace element in the hash
+ */
+void ucl_hash_replace (ucl_hash_t* hashlin, const ucl_object_t *old,
+		const ucl_object_t *new);
+
+/**
+ * Delete an element from the the hashtable.
+ */
+void ucl_hash_delete (ucl_hash_t* hashlin, const ucl_object_t *obj);
+
+/**
+ * Searches an element in the hashtable.
+ */
+const ucl_object_t* ucl_hash_search (ucl_hash_t* hashlin, const char *key,
+		unsigned keylen);
+
+
+/**
+ * Iterate over hash table
+ * @param hashlin hash
+ * @param iter iterator (must be NULL on first iteration)
+ * @param ep pointer record exception (such as ENOMEM), could be NULL
+ * @return the next object
+ */
+const void* ucl_hash_iterate2 (ucl_hash_t *hashlin, ucl_hash_iter_t *iter, int *ep);
+
+/**
+ * Helper macro to support older code
+ */
+#define ucl_hash_iterate(hl, ip) ucl_hash_iterate2((hl), (ip), NULL)
+
+/**
+ * Check whether an iterator has next element
+ */
+bool ucl_hash_iter_has_next (ucl_hash_t *hashlin, ucl_hash_iter_t iter);
+
+/**
+ * Reserves space in hash
+ * @return true on sucess, false on failure (e.g. ENOMEM)
+ * @param hashlin
+ */
+bool ucl_hash_reserve (ucl_hash_t *hashlin, size_t sz);
+
+/**
+ * Sorts keys in a hash
+ * @param hashlin
+ * @param fl
+ */
+void ucl_hash_sort (ucl_hash_t *hashlin, enum ucl_object_keys_sort_flags fl);
+
+#endif