/*
* Copyright (c) 2012, Jonathan Schleifer <js@webkeks.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <assert.h>
#include "object.h"
#include "refpool.h"
#include "array.h"
struct CFWRefPool {
CFWObject obj;
void **data;
size_t size;
CFWRefPool *prev, *next;
};
static CFWRefPool *top;
static bool
ctor(void *ptr, va_list args)
{
CFWRefPool *pool = ptr;
pool->data = NULL;
pool->size = 0;
if (top != NULL) {
pool->prev = top;
top->next = pool;
} else
pool->prev = NULL;
pool->next = NULL;
top = pool;
return true;
}
static void
dtor(void *ptr)
{
CFWRefPool *pool = ptr;
size_t i;
if (pool->next != NULL)
cfw_unref(pool->next);
for (i = 0; i < pool->size; i++)
cfw_unref(pool->data[i]);
if (pool->data != NULL)
free(pool->data);
top = pool->prev;
}
bool
cfw_refpool_add(void *ptr)
{
void **ndata;
assert(top != NULL);
if (top->data != NULL)
ndata = realloc(top->data, (top->size + 1) * sizeof(void*));
else
ndata = malloc((top->size + 1) * sizeof(void*));
if (ndata == NULL)
return false;
ndata[top->size++] = ptr;
top->data = ndata;
return true;
}
static CFWClass class = {
.name = "CFWRefPool",
.size = sizeof(CFWRefPool),
.ctor = ctor,
.dtor = dtor
};
CFWClass *cfw_refpool = &class;