forked from KolibriOS/kolibrios
89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/* hash.h -- header file for gas hash table routines
|
|
Copyright (C) 1987-2015 Free Software Foundation, Inc.
|
|
|
|
This file is part of GAS, the GNU Assembler.
|
|
|
|
GAS 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 3, or (at your option)
|
|
any later version.
|
|
|
|
GAS 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 GAS; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
|
|
02110-1301, USA. */
|
|
|
|
#ifndef HASH_H
|
|
#define HASH_H
|
|
|
|
struct hash_control;
|
|
|
|
/* Set the size of the hash table used. */
|
|
|
|
void set_gas_hash_table_size (unsigned long);
|
|
|
|
/* Create a hash table. This return a control block. */
|
|
|
|
extern struct hash_control *hash_new (void);
|
|
extern struct hash_control *hash_new_sized (unsigned long);
|
|
|
|
/* Delete a hash table, freeing all allocated memory. */
|
|
|
|
extern void hash_die (struct hash_control *);
|
|
|
|
/* Insert an entry into a hash table. This returns NULL on success.
|
|
On error, it returns a printable string indicating the error. It
|
|
is considered to be an error if the entry already exists in the
|
|
hash table. */
|
|
|
|
extern const char *hash_insert (struct hash_control *,
|
|
const char *key, void *value);
|
|
|
|
/* Insert or replace an entry in a hash table. This returns NULL on
|
|
success. On error, it returns a printable string indicating the
|
|
error. If an entry already exists, its value is replaced. */
|
|
|
|
extern const char *hash_jam (struct hash_control *,
|
|
const char *key, void *value);
|
|
|
|
/* Replace an existing entry in a hash table. This returns the old
|
|
value stored for the entry. If the entry is not found in the hash
|
|
table, this does nothing and returns NULL. */
|
|
|
|
extern void *hash_replace (struct hash_control *, const char *key,
|
|
void *value);
|
|
|
|
/* Find an entry in a hash table, returning its value. Returns NULL
|
|
if the entry is not found. */
|
|
|
|
extern void *hash_find (struct hash_control *, const char *key);
|
|
|
|
/* As hash_find, but KEY is of length LEN and is not guaranteed to be
|
|
NUL-terminated. */
|
|
|
|
extern void *hash_find_n (struct hash_control *, const char *key, size_t len);
|
|
|
|
/* Delete an entry from a hash table. This returns the value stored
|
|
for that entry, or NULL if there is no such entry. */
|
|
|
|
extern void *hash_delete (struct hash_control *, const char *key, int);
|
|
|
|
/* Traverse a hash table. Call the function on every entry in the
|
|
hash table. */
|
|
|
|
extern void hash_traverse (struct hash_control *,
|
|
void (*pfn) (const char *key, void *value));
|
|
|
|
/* Print hash table statistics on the specified file. NAME is the
|
|
name of the hash table, used for printing a header. */
|
|
|
|
extern void hash_print_statistics (FILE *, const char *name,
|
|
struct hash_control *);
|
|
|
|
#endif /* HASH_H */
|