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/*
* ion/ioncore/obj.h
*
* Copyright (c) Tuomo Valkonen 1999-2004.
*
* Ion is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*/
#ifndef ION_IONCORE_WOBJ_H
#define ION_IONCORE_WOBJ_H
#define OBJDESCR(TYPE) TYPE##_objdescr
#define WOBJ_IS(OBJ, TYPE) wobj_is((WObj*)OBJ, &OBJDESCR(TYPE))
/*#define WOBJ_CAST(OBJ, TYPE) (TYPE*)wobj_cast((WObj*)OBJ, &OBJDESCR(TYPE))*/
#define INTRSTRUCT(STRU) \
struct STRU##_struct; typedef struct STRU##_struct STRU
#define DECLSTRUCT(STRU) \
struct STRU##_struct
#define INTROBJ(OBJ) INTRSTRUCT(OBJ); extern WObjDescr OBJDESCR(OBJ)
#define DECLOBJ(OBJ) DECLSTRUCT(OBJ)
INTRSTRUCT(WObjDescr);
INTROBJ(WObj);
INTRSTRUCT(WWatch);
extern bool wobj_is(const WObj *obj, const WObjDescr *descr);
extern bool wobj_is_str(const WObj *obj, const char *str);
/*extern const void *wobj_cast(const WObj *obj, const WObjDescr *descr);*/
extern void destroy_obj(WObj *obj);
DECLOBJ(WObj){
WObjDescr *obj_type;
WWatch *obj_watches;
int flags;
};
#define WOBJ_DEST 0x0001
#define WOBJ_EXTL_CACHED 0x0002
#define WOBJ_IS_BEING_DESTROYED(OBJ) (((WObj*)(OBJ))->flags&WOBJ_DEST)
#define DYNFUN
typedef void WWatchHandler(WWatch *watch, WObj *obj);
#define WWATCH_INIT {NULL, NULL, NULL, NULL}
DECLSTRUCT(WWatch){
WObj *obj;
WWatch *next, *prev;
WWatchHandler *handler;
};
extern bool setup_watch(WWatch *watch, WObj *obj,
WWatchHandler *handler);
extern void reset_watch(WWatch *watch);
extern bool watch_ok(WWatch *watch);
extern void init_watch(WWatch *watch);
extern void call_watches(WObj *obj);
#endif /* ION_IONCORE_WOBJ_H */
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