mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-06 05:01:26 +00:00
118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/*
|
|
strpool.c
|
|
|
|
unique string support
|
|
|
|
Copyright (C) 2002 Bill Currie <bill@taniwha.org>
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2002/7/5
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
static __attribute__ ((used)) const char rcsid[] =
|
|
"$Id$";
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
|
|
#include "QF/hash.h"
|
|
|
|
#include "strpool.h"
|
|
|
|
static const char *
|
|
strpool_get_key (void *_str, void *_strpool)
|
|
{
|
|
long str = (long) _str;
|
|
strpool_t *strpool = (strpool_t *) _strpool;
|
|
|
|
return strpool->strings + str;
|
|
}
|
|
|
|
strpool_t *
|
|
strpool_new (void)
|
|
{
|
|
strpool_t *strpool = malloc (sizeof (strpool_t));
|
|
|
|
strpool->str_tab = Hash_NewTable (16381, strpool_get_key, 0, strpool);
|
|
strpool->size = 1;
|
|
strpool->max_size = 16384;
|
|
strpool->strings = malloc (strpool->max_size);
|
|
strpool->strings[0] = 0;
|
|
return strpool;
|
|
}
|
|
|
|
strpool_t *
|
|
strpool_build (const char *strings, int size)
|
|
{
|
|
long s;
|
|
|
|
strpool_t *strpool = malloc (sizeof (strpool_t));
|
|
strpool->str_tab = Hash_NewTable (16381, strpool_get_key, 0, strpool);
|
|
strpool->size = size + (*strings != 0);
|
|
strpool->max_size = (strpool->size + 16383) & ~16383;
|
|
strpool->strings = malloc (strpool->max_size);
|
|
memcpy (strpool->strings + (*strings != 0), strings, strpool->size);
|
|
strpool->strings[0] = 0;
|
|
for (s = 1; s < strpool->size; s += strlen (strpool->strings + s) + 1) {
|
|
Hash_Add (strpool->str_tab, (void *) s);
|
|
}
|
|
return strpool;
|
|
}
|
|
|
|
void
|
|
strpool_delete (strpool_t *strpool)
|
|
{
|
|
Hash_DelTable (strpool->str_tab);
|
|
free (strpool->strings);
|
|
free (strpool);
|
|
}
|
|
|
|
int
|
|
strpool_addstr (strpool_t *strpool, const char *str)
|
|
{
|
|
long s;
|
|
int len;
|
|
|
|
if (!str || !*str)
|
|
return 0;
|
|
s = (long) Hash_Find (strpool->str_tab, str);
|
|
if (s)
|
|
return s;
|
|
len = strlen (str) + 1;
|
|
if (strpool->size + len > strpool->max_size) {
|
|
strpool->max_size += (len + 16383) & ~16383;
|
|
strpool->strings = realloc (strpool->strings, strpool->max_size);
|
|
}
|
|
s = strpool->size;
|
|
strpool->size += len;
|
|
strcpy (strpool->strings + s, str);
|
|
Hash_Add (strpool->str_tab, (void *) s);
|
|
return s;
|
|
}
|