object.h

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/*******************************************************************************
 * Copyright © 2014 The DTVKit Open Software Foundation Ltd (www.dtvkit.org)
 * Copyright © 2013 Ocean Blue Software Ltd
 *
 * This file is part of a DTVKit Software Component
 * You are permitted to copy, modify or distribute this file subject to the terms
 * of the DTVKit 1.0 Licence which can be found in licence.txt or at www.dtvkit.org
 * 
 * THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * If you or your organisation is not a member of DTVKit then you have access
 * to this source code outside of the terms of the licence agreement
 * and you are expected to delete this and any associated files immediately.
 * Further information on DTVKit, membership and terms can be found at www.dtvkit.org
 *******************************************************************************/
#ifndef _OBJECT_H
#define _OBJECT_H

#include <stddef.h>
#include <assert.h>
#include "hbbtv_js.h"

#define JS_CHECK_OBJECT(o, c)       \
   assert(((o) != NULL) &&            \
   ((S_JS_OBJECT *)(o))->vtab == (c))

#define JS_INC_OBJ_REF(o)  (o == NULL) ? HBBTV_JSObject_DbgNull(__FILE__, __LINE__) :  HBBTV_JSObject_incref(o)

#define HBBTV_UNUSED_OBJ(x) if (x) {}

typedef struct
{
   void *(*create)(void);
   void (*release)(void *obj);
   HBBTV_JSObjType_CONST type;
#ifdef DEBUG_JS_OBJECTS
   const char *name;
   const char *(*objstr)(void *obj);
#endif
} S_JS_OBJ_VTAB;

typedef struct s_obj_reference
{
   void *reference;
   struct s_obj_reference *next;
} S_OBJ_REFERENCE;

typedef struct
{
   S_JS_OBJ_VTAB *vtab;
   S32BIT refcount;
   S_OBJ_REFERENCE *referenceList;
   void *referenceSemaphore;
   U32BIT extReferenceCount;
} S_JS_OBJECT;

#ifdef DEBUG_JS_OBJECTS
void HBBTV_JSObjectPrint(void);
#endif

void* HBBTV_JSObjectCreate(S_JS_OBJ_VTAB *vtab);

void* HBBTV_JSObject_DbgNull(char *file, int line);

#endif  /* _OBJECT_H */