cso_hash.h

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/**************************************************************************
 *
 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
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 * permit persons to whom the Software is furnished to do so, subject to
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 *
 * The above copyright notice and this permission notice (including the
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 * of the Software.
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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#ifndef CSO_HASH_H
#define CSO_HASH_H


#ifdef  __cplusplus
extern "C" {
#endif


struct cso_hash;
struct cso_node;


struct cso_hash_iter {
   struct cso_hash *hash;
   struct cso_node  *node;
};


struct cso_hash *cso_hash_create(void);
void             cso_hash_delete(struct cso_hash *hash);


int              cso_hash_size(struct cso_hash *hash);


struct cso_hash_iter cso_hash_insert(struct cso_hash *hash, unsigned key,
                                     void *data);
struct cso_hash_iter cso_hash_erase(struct cso_hash *hash, struct cso_hash_iter iter);

void  *cso_hash_take(struct cso_hash *hash, unsigned key);



struct cso_hash_iter cso_hash_first_node(struct cso_hash *hash);

struct cso_hash_iter cso_hash_find(struct cso_hash *hash, unsigned key);


int       cso_hash_iter_is_null(struct cso_hash_iter iter);
unsigned  cso_hash_iter_key(struct cso_hash_iter iter);
void     *cso_hash_iter_data(struct cso_hash_iter iter);


struct cso_hash_iter cso_hash_iter_next(struct cso_hash_iter iter);
struct cso_hash_iter cso_hash_iter_prev(struct cso_hash_iter iter);


void *cso_hash_find_data_from_template( struct cso_hash *hash,
                                        unsigned hash_key,
                                        void *templ,
                                        int size );


#ifdef  __cplusplus
}
#endif

#endif

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