doubango/trunk/tinySAK/src/tsk_object.c

181 lines
3.5 KiB
C

/*
* Copyright (C) 2009 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou@yahoo.fr>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
/**@file tsk_object.c
* @brief Base object implementation.
*
* @author Mamadou Diop <diopmamadou(at)yahoo.fr>
*
* @date Created: Sat Nov 8 16:54:58 2009 mdiop
*/
#include "tsk_object.h"
#include "tsk_memory.h"
#include "tsk_debug.h"
#if defined (_DEBUG) || defined (DEBUG)
# define TSK_DEBUG_OBJECTS 0
static int tsk_objects_count = 0;
#else
# define TSK_DEBUG_OBJECTS 0
#endif
typedef struct tsk_object_header_s
{
const void* base;
size_t refCount;
}
tsk_object_header_t;
#define TSK_OBJECT_HEADER_GET(object) ((tsk_object_header_t*)object)
void* tsk_object_new(const tsk_object_def_t *objdef, ...)
{
void *newobj = tsk_calloc(1, objdef->size);
if(newobj)
{
(*(const tsk_object_def_t **) newobj) = objdef;
TSK_OBJECT_HEADER_GET(newobj)->refCount = 1;
if(objdef->constructor)
{
va_list ap;
va_start(ap, objdef);
newobj = objdef->constructor(newobj, &ap);
va_end(ap);
#if TSK_DEBUG_OBJECTS
TSK_DEBUG_INFO("N° objects:%d", ++tsk_objects_count);
#endif
}
else
{
TSK_DEBUG_WARN("No constructor found.");
}
}
else
{
TSK_DEBUG_ERROR("Failed to create new tsk_object.");
}
return newobj;
}
void* tsk_object_new2(const tsk_object_def_t *objdef, va_list* ap)
{
void *newobj = tsk_calloc(1, objdef->size);
if(newobj)
{
(*(const tsk_object_def_t **) newobj) = objdef;
TSK_OBJECT_HEADER_GET(newobj)->refCount = 1;
if(objdef->constructor)
{
newobj = objdef->constructor(newobj, ap);
}
else
{
TSK_DEBUG_WARN("No constructor found.");
}
}
else
{
TSK_DEBUG_ERROR("Failed to create new tsk_object.");
}
return newobj;
}
size_t tsk_object_sizeof(const void *self)
{
const tsk_object_def_t **objdef = self;
if(objdef && *objdef)
{
return (*objdef)->size;
}
else
{
TSK_DEBUG_ERROR("NULL tsk obkect.");
return 0;
}
}
int tsk_object_cmp(const void *self, const void *object)
{
const tsk_object_def_t **objdef = self;
if(objdef && *objdef && (*objdef)->objcmp)
{
return (*objdef)->objcmp(self, object);
}
return 0;
}
/*int tsk_object_icmp(const void *self, const void *object)
{
const tsk_object_def_t **objdef = self;
if(objdef && *objdef && (*objdef)->objicmp)
{
return (*objdef)->objicmp(self, object);
}
return 0;
}*/
void* tsk_object_ref(void *self)
{
if(self)
{
TSK_OBJECT_HEADER_GET(self)->refCount++;
return self;
}
return 0;
}
void* tsk_object_unref(void *self)
{
if(self)
{
if(!--(TSK_OBJECT_HEADER_GET(self)->refCount))
{
tsk_object_delete(self);
return 0;
}
}
return self;
}
void tsk_object_delete(void *self)
{
const tsk_object_def_t ** objdef = self;
if(self && *objdef)
{
if((*objdef)->destructor)
{
self = (*objdef)->destructor(self);
#if TSK_DEBUG_OBJECTS
TSK_DEBUG_INFO("N° objects:%d", --tsk_objects_count);
#endif
}
else
{
TSK_DEBUG_WARN("No destructor found.");
}
free(self);
}
}