/* HashKit
- * Copyright (C) 2009 Brian Aker
+ * Copyright (C) 2009-2010 Brian Aker
* All rights reserved.
*
* Use and distribution licensed under the BSD license. See
* the COPYING file in the parent directory for full text.
*/
-/**
- * @file
- * @brief HashKit Header
- */
-
#ifndef HASHKIT_H
#define HASHKIT_H
+
#if !defined(__cplusplus)
# include <stdbool.h>
#endif
#include <inttypes.h>
#include <sys/types.h>
#include <libhashkit/visibility.h>
+#include <libhashkit/configure.h>
#include <libhashkit/types.h>
#include <libhashkit/algorithm.h>
#include <libhashkit/behavior.h>
+#include <libhashkit/digest.h>
+#include <libhashkit/function.h>
#include <libhashkit/strerror.h>
#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @addtogroup hashkit_constants Constants
- * @ingroup hashkit
- * @{
- */
-
-/* Defines. */
-#define HASHKIT_MAX_KEY 251
-#define HASHKIT_POINTS_PER_NODE 100
-#define HASHKIT_POINTS_PER_NODE_WEIGHTED 160
-#define HASHKIT_CONTINUUM_ADDITION 10
-#define HASHKIT_CONTINUUM_KEY_SIZE 86
-/** @} */
-
-/**
- * @ingroup hashkit
- */
-struct hashkit_st
-{
- hashkit_options_st options;
- hashkit_distribution_t distribution;
- uint32_t continuum_count;
- uint32_t continuum_points_count;
- size_t list_size;
- size_t context_size;
-
- /**
- @note There are two places we use hashing, one is for when we have a key
- and we want to find out what server it should be placed on. The second is
- for when we are placing a value into the continuum.
- */
- hashkit_hash_algorithm_t for_key;
- hashkit_hash_algorithm_t for_distribution;
-
- hashkit_continuum_point_st *continuum;
- hashkit_fn *hash_fn;
- hashkit_active_fn *active_fn;
- hashkit_fn *continuum_hash_fn;
- hashkit_key_fn *continuum_key_fn;
- hashkit_sort_fn *sort_fn;
- hashkit_weight_fn *weight_fn;
- void *list;
-};
-
-/**
- * @ingroup hashkit
- */
-struct hashkit_continuum_point_st
-{
- uint32_t index;
- uint32_t value;
-};
+#include <string>
-/**
- * @addtogroup hashkit Pandora Hash Declarations
- * @{
- */
+extern "C" {
+#endif
HASHKIT_API
hashkit_st *hashkit_create(hashkit_st *hash);
hashkit_st *hashkit_clone(hashkit_st *destination, const hashkit_st *ptr);
HASHKIT_API
-void hashkit_free(hashkit_st *hash);
+bool hashkit_compare(const hashkit_st *first, const hashkit_st *second);
HASHKIT_API
-uint32_t hashkit_generate_value(const char *key, size_t key_length, hashkit_hash_algorithm_t hash_algorithm);
+void hashkit_free(hashkit_st *hash);
#define hashkit_is_allocated(__object) ((__object)->options.is_allocated)
#define hashkit_is_initialized(__object) ((__object)->options.is_initialized)
-/** @} */
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+struct hashkit_st
+{
+ struct hashkit_function_st {
+ hashkit_hash_fn function;
+ void *context;
+ } base_hash, distribution_hash;
+
+ struct {
+ bool is_base_same_distributed:1;
+ } flags;
+
+ struct {
+ bool is_allocated:1;
+ } options;
+};
#ifdef __cplusplus
-}
+class Hashkit : private hashkit_st {
+
+public:
+
+ Hashkit()
+ {
+ hashkit_create(this);
+ }
+
+ Hashkit(const Hashkit& source)
+ {
+ hashkit_clone(this, &source);
+ }
+
+ Hashkit& operator=(const Hashkit& source)
+ {
+ hashkit_free(this);
+ hashkit_clone(this, &source);
+
+ return *this;
+ }
+
+ friend bool operator==(const Hashkit &left, const Hashkit &right)
+ {
+ return hashkit_compare(&left, &right);
+ }
+
+ uint32_t digest(std::string& str)
+ {
+ return hashkit_digest(this, str.c_str(), str.length());
+ }
+
+ uint32_t digest(const char *key, size_t key_length)
+ {
+ return hashkit_digest(this, key, key_length);
+ }
+
+ hashkit_return_t set_function(hashkit_hash_algorithm_t hash_algorithm)
+ {
+ return hashkit_set_function(this, hash_algorithm);
+ }
+
+ hashkit_return_t set_distribution_function(hashkit_hash_algorithm_t hash_algorithm)
+ {
+ return hashkit_set_function(this, hash_algorithm);
+ }
+
+ ~Hashkit()
+ {
+ hashkit_free(this);
+ }
+};
#endif
+
#endif /* HASHKIT_H */