/*
* 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 "cfwobject.h"
#include "cfwarray.h"
struct CFWArray {
CFWObject obj;
void **data;
size_t size;
};
static void
ctor(void *ptr)
{
CFWArray *array = ptr;
array->data = NULL;
array->size = 0;
}
static void
dtor(void *ptr)
{
CFWArray *array = ptr;
size_t i;
for (i = 0; i < array->size; i++)
cfw_unref(array->data[i]);
if (array->data != NULL)
free(array->data);
}
static bool
equal(void *ptr1, void *ptr2)
{
CFWObject *obj2 = ptr2;
CFWArray *array1, *array2;
size_t i;
if (obj2->clsptr != cfw_array)
return false;
array1 = ptr1;
array2 = ptr2;
if (array1->size != array2->size)
return false;
for (i = 0; i < array1->size; i++)
if (cfw_equal(array1->data[i], array2->data[i]))
return false;
return true;
}
static void*
copy(void *ptr)
{
CFWArray *array = ptr;
CFWArray *new;
size_t i;
if ((new = cfw_new(cfw_array)) == NULL)
return NULL;
if ((new->data = malloc(sizeof(void*) * array->size)) == NULL) {
cfw_unref(new);
return NULL;
}
new->size = array->size;
for (i = 0; i < array->size; i++)
new->data[i] = cfw_ref(array->data[i]);
return new;
}
void*
cfw_array_get(CFWArray *array, size_t index)
{
if (index >= array->size)
return NULL;
return array->data[index];
}
size_t
cfw_array_size(CFWArray *array)
{
return array->size;
}
bool
cfw_array_set(CFWArray *array, size_t index, void *ptr)
{
CFWObject *obj = ptr;
CFWObject *old;
if (index >= array->size)
return false;
cfw_ref(obj);
old = array->data[index];
array->data[index] = obj;
cfw_unref(old);
return true;
}
bool
cfw_array_push(CFWArray *array, void *ptr)
{
CFWObject *obj = ptr;
void **new;
if (array->data == NULL)
new = malloc(sizeof(void*));
else
new = realloc(array->data, sizeof(void*) * (array->size + 1));
if (new == NULL)
return false;
new[array->size] = cfw_ref(obj);
array->data = new;
array->size++;
return true;
}
void*
cfw_array_last(CFWArray *array)
{
if (array->size == 0)
return NULL;
return array->data[array->size - 1];
}
bool
cfw_array_pop(CFWArray *array)
{
void **new;
void *last;
if (array->size == 0)
return NULL;
if (array->size == 1) {
cfw_unref(array->data[0]);
free(array->data);
array->data = NULL;
array->size = 0;
return true;
}
last = array->data[array->size - 1];
new = realloc(array->data, sizeof(void*) * (array->size - 1));
if (new == NULL)
return false;
cfw_unref(last);
array->data = new;
array->size--;
return true;
}
static CFWClass class = {
.name = "CFWArray",
.size = sizeof(CFWArray),
.ctor = ctor,
.dtor = dtor,
.equal = equal,
.copy = copy
};
CFWClass *cfw_array = &class;