mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 04:42:32 +00:00
addbcaa09c
This is an extension "wrapper" (no such C function). This allows ruamoko programs to read property lists without worrying about the memory required to store the string for the property list being read.
461 lines
11 KiB
C
461 lines
11 KiB
C
/*
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bi_plist.c
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QuakeC plist api
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Copyright (C) 2003 Bill Currie
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Author: Bill Currie <bill@taniwha.org>
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Date: 2003/4/7
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((used)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/hash.h"
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#include "QF/progs.h"
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#include "QF/qfplist.h"
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#include "rua_internal.h"
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typedef struct bi_plist_s {
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struct bi_plist_s *next;
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struct bi_plist_s **prev;
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plitem_t *plitem;
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int own;
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} bi_plist_t;
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typedef struct {
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PR_RESMAP (bi_plist_t) plist_map;
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bi_plist_t *plists;
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hashtab_t *plist_tab;
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} plist_resources_t;
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static bi_plist_t *
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plist_new (plist_resources_t *res)
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{
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PR_RESNEW (bi_plist_t, res->plist_map);
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}
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static void
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plist_free (plist_resources_t *res, bi_plist_t *plist)
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{
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PR_RESFREE (bi_plist_t, res->plist_map, plist);
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}
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static void
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plist_reset (plist_resources_t *res)
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{
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PR_RESRESET (bi_plist_t, res->plist_map);
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}
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static inline bi_plist_t *
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plist_get (plist_resources_t *res, unsigned index)
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{
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PR_RESGET(res->plist_map, index);
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}
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static inline int
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plist_index (plist_resources_t *res, bi_plist_t *plist)
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{
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PR_RESINDEX(res->plist_map, plist);
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}
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static void
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bi_plist_clear (progs_t *pr, void *data)
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{
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plist_resources_t *res = (plist_resources_t *) data;
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bi_plist_t *plist;
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for (plist = res->plists; plist; plist = plist->next) {
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if (plist->own)
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PL_Free (plist->plitem);
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}
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Hash_FlushTable (res->plist_tab);
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plist_reset (res);
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}
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static inline int
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plist_handle (plist_resources_t *res, plitem_t *plitem)
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{
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bi_plist_t dummy = {0, 0, plitem, 0};
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bi_plist_t *plist = Hash_FindElement (res->plist_tab, &dummy);
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if (plist)
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return plist_index (res, plist);
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plist = plist_new (res);
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if (!plist)
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return 0;
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plist->next = res->plists;
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plist->prev = &res->plists;
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if (res->plists)
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res->plists->prev = &plist->next;
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res->plists = plist;
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plist->plitem = plitem;
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Hash_AddElement (res->plist_tab, plist);
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return plist_index (res, plist);
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}
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static inline void
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plist_free_handle (plist_resources_t *res, bi_plist_t *plist)
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{
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Hash_DelElement (res->plist_tab, plist);
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*plist->prev = plist->next;
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plist_free (res, plist);
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}
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static inline bi_plist_t *
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get_plist (progs_t *pr, const char *name, int handle)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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bi_plist_t *plist = plist_get (res, handle);
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// plist->prev will be null if the handle is unallocated
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if (!plist || !plist->prev)
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PR_RunError (pr, "invalid plist passed to %s", name + 3);
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return plist;
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}
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static inline int
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plist_retain (plist_resources_t *res, plitem_t *plitem)
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{
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int handle;
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bi_plist_t *plist;
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if (!plitem)
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return 0;
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handle = plist_handle (res, plitem);
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if (!handle) {
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// we're taking ownership of the plitem, but we have nowhere to store
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// it, so we have to lose it. However, in this situation, we have worse
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// things to worry about.
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PL_Free (plitem);
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return 0;
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}
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plist = plist_get (res, handle);
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plist->own = 1;
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return handle;
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}
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static void
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bi_PL_GetFromFile (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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QFile *file = QFile_GetFile (pr, P_INT (pr, 0));
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plitem_t *plitem;
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long offset;
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long size;
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long len;
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char *buf;
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offset = Qtell (file);
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size = Qfilesize (file);
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len = size - offset;
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buf = malloc (len + 1);
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Qread (file, buf, len);
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buf[len] = 0;
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plitem = PL_GetPropertyList (buf);
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_GetPropertyList (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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plitem_t *plitem = PL_GetPropertyList (P_GSTRING (pr, 0));
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_WritePropertyList (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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char *pl = PL_WritePropertyList (plist->plitem);
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R_STRING (pr) = PR_SetDynamicString (pr, pl);
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free (pl);
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}
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static void
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bi_PL_Type (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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R_INT (pr) = PL_Type (plist->plitem);
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}
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static void
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bi_PL_String (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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const char *str = PL_String (plist->plitem);
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RETURN_STRING (pr, str);
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}
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static void
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bi_PL_ObjectForKey (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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const char *key = P_GSTRING (pr, 1);
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plitem_t *plitem = PL_ObjectForKey (plist->plitem, key);
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R_INT (pr) = 0;
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if (!plitem)
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return;
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R_INT (pr) = plist_handle (res, plitem);
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}
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static void
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bi_PL_RemoveObjectForKey (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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const char *key = P_GSTRING (pr, 1);
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plitem_t *plitem = PL_RemoveObjectForKey (plist->plitem, key);
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_ObjectAtIndex (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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int ind = P_INT (pr, 1);
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plitem_t *plitem = PL_ObjectAtIndex (plist->plitem, ind);
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R_INT (pr) = 0;
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if (!plitem)
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return;
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R_INT (pr) = plist_handle (res, plitem);
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}
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static void
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bi_PL_D_AllKeys (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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plitem_t *plitem = PL_D_AllKeys (plist->plitem);
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_D_NumKeys (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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R_INT (pr) = PL_D_NumKeys (plist->plitem);
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}
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static void
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bi_PL_D_AddObject (progs_t *pr)
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{
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int dict_handle = P_INT (pr, 0);
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int obj_handle = P_INT (pr, 2);
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bi_plist_t *dict = get_plist (pr, __FUNCTION__, dict_handle);
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const char *key = P_GSTRING (pr, 1);
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bi_plist_t *obj = get_plist (pr, __FUNCTION__, obj_handle);
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obj->own = 0;
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R_INT (pr) = PL_D_AddObject (dict->plitem, key, obj->plitem);
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}
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static void
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bi_PL_A_AddObject (progs_t *pr)
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{
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int arr_handle = P_INT (pr, 0);
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int obj_handle = P_INT (pr, 1);
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bi_plist_t *arr = get_plist (pr, __FUNCTION__, arr_handle);
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bi_plist_t *obj = get_plist (pr, __FUNCTION__, obj_handle);
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obj->own = 0;
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R_INT (pr) = PL_A_AddObject (arr->plitem, obj->plitem);
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}
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static void
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bi_PL_A_NumObjects (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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R_INT (pr) = PL_A_NumObjects (plist->plitem);
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}
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static void
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bi_PL_A_InsertObjectAtIndex (progs_t *pr)
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{
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int dict_handle = P_INT (pr, 0);
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int obj_handle = P_INT (pr, 1);
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bi_plist_t *arr = get_plist (pr, __FUNCTION__, dict_handle);
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bi_plist_t *obj = get_plist (pr, __FUNCTION__, obj_handle);
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int ind = P_INT (pr, 2);
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obj->own = 0;
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R_INT (pr) = PL_A_InsertObjectAtIndex (arr->plitem, obj->plitem, ind);
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}
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static void
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bi_PL_RemoveObjectAtIndex (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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int ind = P_INT (pr, 1);
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plitem_t *plitem = PL_RemoveObjectAtIndex (plist->plitem, ind);
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_NewDictionary (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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plitem_t *plitem = PL_NewDictionary ();
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_NewArray (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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plitem_t *plitem = PL_NewArray ();
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_NewData (progs_t *pr)
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{
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//FIXME not safe
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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plitem_t *plitem = PL_NewData (P_GPOINTER (pr, 0), P_INT (pr, 1));
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_NewString (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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plitem_t *plitem = PL_NewString (P_GSTRING (pr, 0));
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R_INT (pr) = plist_retain (res, plitem);
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}
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static void
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bi_PL_Free (progs_t *pr)
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{
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plist_resources_t *res = PR_Resources_Find (pr, "plist");
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int handle = P_INT (pr, 0);
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bi_plist_t *plist = get_plist (pr, __FUNCTION__, handle);
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if (!plist->own)
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PR_RunError (pr, "attempt to free unowned plist");
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PL_Free (plist->plitem);
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plist_free_handle (res, plist);
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}
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static uintptr_t
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plist_get_hash (void *key, void *unused)
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{
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bi_plist_t *plist = (bi_plist_t *) key;
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return (uintptr_t) plist->plitem;
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}
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static int
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plist_compare (void *k1, void *k2, void *unused)
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{
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bi_plist_t *pl1 = (bi_plist_t *) k1;
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bi_plist_t *pl2 = (bi_plist_t *) k2;
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return pl1->plitem == pl2->plitem;
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}
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static builtin_t builtins[] = {
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{"PL_GetFromFile", bi_PL_GetFromFile, -1},
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{"PL_GetPropertyList", bi_PL_GetPropertyList, -1},
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{"PL_WritePropertyList", bi_PL_WritePropertyList, -1},
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{"PL_Type", bi_PL_Type, -1},
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{"PL_String", bi_PL_String, -1},
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{"PL_ObjectForKey", bi_PL_ObjectForKey, -1},
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{"PL_RemoveObjectForKey", bi_PL_RemoveObjectForKey, -1},
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{"PL_ObjectAtIndex", bi_PL_ObjectAtIndex, -1},
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{"PL_D_AllKeys", bi_PL_D_AllKeys, -1},
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{"PL_D_NumKeys", bi_PL_D_NumKeys, -1},
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{"PL_D_AddObject", bi_PL_D_AddObject, -1},
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{"PL_A_AddObject", bi_PL_A_AddObject, -1},
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{"PL_A_NumObjects", bi_PL_A_NumObjects, -1},
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{"PL_A_InsertObjectAtIndex", bi_PL_A_InsertObjectAtIndex, -1},
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{"PL_RemoveObjectAtIndex", bi_PL_RemoveObjectAtIndex, -1},
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{"PL_NewDictionary", bi_PL_NewDictionary, -1},
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{"PL_NewArray", bi_PL_NewArray, -1},
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{"PL_NewData", bi_PL_NewData, -1},
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{"PL_NewString", bi_PL_NewString, -1},
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{"PL_Free", bi_PL_Free, -1},
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{0}
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};
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void
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RUA_Plist_Init (progs_t *pr, int secure)
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{
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plist_resources_t *res = calloc (1, sizeof (plist_resources_t));
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res->plist_tab = Hash_NewTable (1021, 0, 0, 0);
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Hash_SetHashCompare (res->plist_tab, plist_get_hash, plist_compare);
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PR_Resources_Register (pr, "plist", res, bi_plist_clear);
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PR_RegisterBuiltins (pr, builtins);
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}
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