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diff --git a/libhashkit-1.0/types.h b/libhashkit-1.0/types.h
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+/*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ * 
+ *  HashKit
+ *
+ *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ *  Copyright (C) 2009 Brian Aker 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.
+ *
+ *      * The names of its contributors may not be used to endorse or
+ *  promote products derived from this software without specific prior
+ *  written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  "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 THE COPYRIGHT
+ *  OWNER OR CONTRIBUTORS 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.
+ *
+ */
+
+
+#pragma once
+
+typedef enum {
+  HASHKIT_SUCCESS,
+  HASHKIT_FAILURE,
+  HASHKIT_MEMORY_ALLOCATION_FAILURE,
+  HASHKIT_INVALID_HASH,
+  HASHKIT_INVALID_ARGUMENT,
+  HASHKIT_MAXIMUM_RETURN /* Always add new error code before */
+} hashkit_return_t;
+
+static inline bool hashkit_success(const hashkit_return_t rc)
+{
+  return (rc == HASHKIT_SUCCESS);
+}
+
+static inline bool hashkit_failed(const hashkit_return_t rc)
+{
+  return (rc != HASHKIT_SUCCESS);
+}
+
+typedef enum {
+  HASHKIT_HASH_DEFAULT= 0, // hashkit_one_at_a_time()
+  HASHKIT_HASH_MD5,
+  HASHKIT_HASH_CRC,
+  HASHKIT_HASH_FNV1_64,
+  HASHKIT_HASH_FNV1A_64,
+  HASHKIT_HASH_FNV1_32,
+  HASHKIT_HASH_FNV1A_32,
+  HASHKIT_HASH_HSIEH,
+  HASHKIT_HASH_MURMUR,
+  HASHKIT_HASH_JENKINS,
+  HASHKIT_HASH_CUSTOM,
+  HASHKIT_HASH_MAX
+} hashkit_hash_algorithm_t;
+
+/**
+ * Hash distributions that are available to use.
+ */
+typedef enum
+{
+  HASHKIT_DISTRIBUTION_MODULA,
+  HASHKIT_DISTRIBUTION_RANDOM,
+  HASHKIT_DISTRIBUTION_KETAMA,
+  HASHKIT_DISTRIBUTION_MAX /* Always add new values before this. */
+} hashkit_distribution_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct hashkit_st hashkit_st;
+
+typedef uint32_t (*hashkit_hash_fn)(const char *key, size_t key_length, void *context);
+
+#ifdef __cplusplus
+}
+#endif