hashtable.h
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上传日期:2013-06-12
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- /*
- * Copyright (C) 2000 Ross Combs (rocombs@cs.nmsu.edu)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #ifndef INCLUDED_HASHTABLE_TYPES
- #define INCLUDED_HASHTABLE_TYPES
- #ifdef HASHTABLE_INTERNAL_ACCESS
- struct hashtable; /* forward reference for t_entry */
- #endif
- #ifdef HASHTABLE_INTERNAL_ACCESS
- typedef struct internentry
- {
- void * data;
- struct internentry * next;
- }
- t_internentry;
- #endif
- typedef struct entry
- #ifdef HASHTABLE_INTERNAL_ACCESS
- {
- unsigned int row;
- t_internentry * real;
- struct hashtable const * hashtable;
- }
- #endif
- t_entry;
- typedef struct hashtable
- #ifdef HASHTABLE_INTERNAL_ACCESS
- {
- unsigned int num_rows;
- unsigned int len;
- unsigned int zombies;
- t_internentry * * rows;
- }
- #endif
- t_hashtable;
- #endif
- /*****/
- #ifndef JUST_NEED_TYPES
- #ifndef INCLUDED_HASHTABLE_PROTOS
- #define INCLUDED_HASHTABLE_PROTOS
- #ifdef USE_CHECK_ALLOC
- extern t_hashtable * hashtable_create_real(unsigned int num_rows, char const * fn, unsigned int ln) ;
- # define hashtable_create(N) hashtable_create_real(N, __FILE__"{hashtable_create}",__LINE__)
- #else
- extern t_hashtable * hashtable_create(unsigned int num_rows) ;
- #endif
- extern int hashtable_destroy(t_hashtable * hashtable);
- extern int hashtable_purge(t_hashtable * hashtable);
- extern int hashtable_check(t_hashtable const * hashtable);
- extern unsigned int hashtable_get_length(t_hashtable const * hashtable);
- #ifdef USE_CHECK_ALLOC
- extern int hashtable_insert_data_real(t_hashtable * hashtable, void * data, unsigned int hash, char const * fn, unsigned int ln);
- # define hashtable_insert_data(L,D,H) hashtable_insert_data_real(L,D,H,__FILE__"{hashtable_insert_data}",__LINE__)
- #else
- extern int hashtable_insert_data(t_hashtable * hashtable, void * data, unsigned int hash);
- #endif
- extern t_entry * hashtable_get_entry_by_data(t_hashtable const * hashtable, void const * data, unsigned int hash);
- extern t_entry const * hashtable_get_entry_by_data_const(t_hashtable const * hashtable, void const * data, unsigned int hash);
- extern int hashtable_remove_data(t_hashtable * hashtable, void const * data, unsigned int hash); /* delete matching item */
- extern int hashtable_remove_entry(t_hashtable * hashtable, t_entry * entry);
- extern void * hashtable_get_data_by_pos(t_hashtable const * hashtable, unsigned int pos);
- extern void * entry_get_data(t_entry const * entry);
- #ifdef HASHTABLE_DEBUG
- extern t_entry * hashtable_match_get_first_real(t_hashtable const * hashtable, unsigned int hash, char const * fn, unsigned int ln);
- # define hashtable_match_get_first(L,H) hashtable_match_get_first_real(L,H,__FILE__,__LINE__)
- #else
- extern t_entry * hashtable_match_get_first(t_hashtable const * hashtable, unsigned int hash);
- #endif
- extern t_entry * entry_match_get_next(t_entry const * entry, unsigned int hash);
- #ifdef HASHTABLE_DEBUG
- extern t_entry * hashtable_get_first_real(t_hashtable const * hashtable, char const * fn, unsigned int ln);
- # define hashtable_get_first(L) hashtable_get_first_real(L,__FILE__,__LINE__)
- #else
- extern t_entry * hashtable_get_first(t_hashtable const * hashtable);
- #endif
- extern t_entry * entry_get_next(t_entry * entry);
- #ifdef HASHTABLE_DEBUG
- extern t_entry * hashtable_get_first_matching_real(t_hashtable const * hashtable, unsigned int hash, char const * fn, unsigned int ln);
- # define hashtable_get_first_matching(L,H) hashtable_get_first_matching_real(L,H,__FILE__,__LINE__)
- #else
- extern t_entry * hashtable_get_first_matching(t_hashtable const * hashtable, unsigned int hash);
- #endif
- extern t_entry * entry_get_next_matching(t_entry * entry);
- extern int hashtable_entry_release(t_entry * entry);
- extern int hashtable_stats(t_hashtable * hashtable);
- #define HASHTABLE_TRAVERSE(hashtable,curr) for (curr=hashtable_get_first(hashtable); curr; curr=entry_get_next(curr))
- #define HASHTABLE_TRAVERSE_MATCHING(hashtable,curr,hash) for (curr=hashtable_get_first_matching(hashtable,hash); curr; curr=entry_get_next_matching(curr))
- #endif
- #endif