X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=src%2Fhash.h;h=4e4787cb2b22da581b2a71c6b59a9f2b2b80feb9;hb=c84990d1037000e9487a437491a853975b356e5a;hp=d6646d4fb7394af22339c066b6c494e2e33784c6;hpb=6883ee56ec887c2c48abe5b06b5e66aa74031910;p=chise%2Fxemacs-chise.git.1 diff --git a/src/hash.h b/src/hash.h index d6646d4..4e4787c 100644 --- a/src/hash.h +++ b/src/hash.h @@ -17,83 +17,65 @@ Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ -#ifndef _HASH_H_ -#define _HASH_H_ +#ifndef INCLUDED_hash_h_ +#define INCLUDED_hash_h_ typedef struct { - CONST void *key; + const void *key; void *contents; } hentry; -struct _C_hashtable +typedef int (*hash_table_test_function) (const void *, const void *); +typedef unsigned long (*hash_table_hash_function) (const void *); +typedef size_t hash_size_t; + +struct hash_table { hentry *harray; long zero_set; void *zero_entry; - size_t size; /* size of the hasharray */ - unsigned int fullness; /* number of entries in the hashtable */ - unsigned long (*hash_function) (CONST void *); - int (*test_function) (CONST void *, CONST void *); -#ifdef emacs - Lisp_Object elisp_table; -#endif + hash_size_t size; /* size of the hasharray */ + hash_size_t fullness; /* number of entries in the hash table */ + hash_table_hash_function hash_function; + hash_table_test_function test_function; }; -typedef struct _C_hashtable *c_hashtable; - -/* size is the number of initial entries. The hashtable will be grown +/* SIZE is the number of initial entries. The hash table will be grown automatically if the number of entries approaches the size */ -c_hashtable make_hashtable (unsigned int size); +struct hash_table *make_hash_table (hash_size_t size); -c_hashtable make_general_hashtable (unsigned int hsize, - unsigned long (*hash_function) - (CONST void *), - int (*test_function) (CONST void *, - CONST void *)); +struct hash_table * +make_general_hash_table (hash_size_t size, + hash_table_hash_function hash_function, + hash_table_test_function test_function); -c_hashtable make_strings_hashtable (unsigned int hsize); +/* Clear HASH-TABLE. A freshly created hash table is already cleared up. */ +void clrhash (struct hash_table *hash_table); -/* clears the hash table. A freshly created hashtable is already cleared up */ -void clrhash (c_hashtable hash); +/* Free HASH-TABLE and its substructures */ +void free_hash_table (struct hash_table *hash_table); -/* frees the table and substructures */ -void free_hashtable (c_hashtable hash); +/* Returns a hentry whose key is 0 if the entry does not exist in HASH-TABLE */ +const void *gethash (const void *key, struct hash_table *hash_table, + const void **ret_value); -/* returns a hentry whose key is 0 if the entry does not exist in hashtable */ -CONST void *gethash (CONST void *key, c_hashtable hash, - CONST void **ret_value); +/* KEY should be different from 0 */ +void puthash (const void *key, void *contents, struct hash_table *hash_table); -/* key should be different from 0 */ -void puthash (CONST void *key, void *contents, c_hashtable hash); +/* delete the entry with key KEY */ +void remhash (const void *key, struct hash_table *hash_table); -/* delete the entry which key is key */ -void remhash (CONST void *key, c_hashtable hash); +typedef int (*maphash_function) (const void* key, void* contents, void* arg); -typedef int (*maphash_function) (CONST void* key, void* contents, void* arg); - -typedef int (*remhash_predicate) (CONST void* key, CONST void* contents, +typedef int (*remhash_predicate) (const void* key, const void* contents, void* arg); -typedef void (*generic_hashtable_op) (c_hashtable table, - void *arg1, void *arg2, void *arg3); - -/* calls mf with the following arguments: key, contents, arg; for every - entry in the hashtable */ -void maphash (maphash_function fn, c_hashtable hash, void* arg); - -/* delete objects from the table which satisfy the predicate */ -void map_remhash (remhash_predicate predicate, c_hashtable hash, void *arg); - -/* copies all the entries of src into dest -- dest is modified as needed - so it is as big as src. */ -void copy_hash (c_hashtable dest, c_hashtable src); - -/* makes sure that hashtable can hold at least needed_size entries */ -void expand_hashtable (c_hashtable hash, unsigned int needed_size); +/* Call MF (key, contents, arg) for every entry in HASH-TABLE */ +void maphash (maphash_function mf, struct hash_table *hash_table, void* arg); -#ifdef emacs /* for elhash.c */ -unsigned int compute_harray_size (unsigned int); -#endif +/* Delete all objects from HASH-TABLE satisfying PREDICATE */ +void map_remhash (remhash_predicate predicate, + struct hash_table *hash_table, void *arg); -#endif /* _HASH_H_ */ +#endif /* INCLUDED_hash_h_ */