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/* HashKit
* Copyright (C) 2006-2009 Brian Aker
* All rights reserved.
*
* Use and distribution licensed under the BSD license. See
* the COPYING file in the parent directory for full text.
*/
#include "common.h"
static const hashkit_st global_default_hash= {
.base_hash= {
.function= hashkit_one_at_a_time,
.context= NULL
},
.flags= {
.is_base_same_distributed= false,
}
};
static inline bool _hashkit_init(hashkit_st *self)
{
self->base_hash= global_default_hash.base_hash;
self->distribution_hash= global_default_hash.base_hash;
self->flags= global_default_hash.flags;
return true;
}
static inline hashkit_st *_hashkit_create(hashkit_st *self)
{
if (self == NULL)
{
self= (hashkit_st *)malloc(sizeof(hashkit_st));
if (self == NULL)
{
return NULL;
}
self->options.is_allocated= true;
}
else
{
self->options.is_allocated= false;
}
return self;
}
hashkit_st *hashkit_create(hashkit_st *self)
{
self= _hashkit_create(self);
if (! self)
return self;
if (! _hashkit_init(self))
{
hashkit_free(self);
}
return self;
}
void hashkit_free(hashkit_st *self)
{
if (hashkit_is_allocated(self))
{
free(self);
}
}
hashkit_st *hashkit_clone(hashkit_st *destination, const hashkit_st *source)
{
if (source == NULL)
{
return hashkit_create(destination);
}
/* new_clone will be a pointer to destination */
destination= _hashkit_create(destination);
// Should only happen on allocation failure.
if (destination == NULL)
{
return NULL;
}
destination->base_hash= source->base_hash;
destination->distribution_hash= source->distribution_hash;
destination->flags= source->flags;
return destination;
}
bool hashkit_compare(const hashkit_st *first, const hashkit_st *second)
{
if (first->base_hash.function == second->base_hash.function &&
first->base_hash.context == second->base_hash.context &&
first->distribution_hash.function == second->distribution_hash.function &&
first->distribution_hash.context == second->distribution_hash.context &&
first->flags.is_base_same_distributed == second->flags.is_base_same_distributed)
{
return true;
}
return false;
}
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