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/*
* YASM associated data storage (libyasm internal use)
*
* Copyright (C) 2003-2007 Peter Johnson
*
* 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 AUTHOR AND OTHER 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 AUTHOR OR OTHER 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 "util.h"
#include "coretype.h"
#include "assocdat.h"
typedef struct assoc_data_item {
const yasm_assoc_data_callback *callback;
void *data;
} assoc_data_item;
struct yasm__assoc_data {
assoc_data_item *vector;
size_t size;
size_t alloc;
};
yasm__assoc_data *
yasm__assoc_data_create(void)
{
yasm__assoc_data *assoc_data = yasm_xmalloc(sizeof(yasm__assoc_data));
assoc_data->size = 0;
assoc_data->alloc = 2;
assoc_data->vector = yasm_xmalloc(assoc_data->alloc *
sizeof(assoc_data_item));
return assoc_data;
}
void *
yasm__assoc_data_get(yasm__assoc_data *assoc_data,
const yasm_assoc_data_callback *callback)
{
size_t i;
if (!assoc_data)
return NULL;
for (i=0; i<assoc_data->size; i++) {
if (assoc_data->vector[i].callback == callback)
return assoc_data->vector[i].data;
}
return NULL;
}
yasm__assoc_data *
yasm__assoc_data_add(yasm__assoc_data *assoc_data_arg,
const yasm_assoc_data_callback *callback, void *data)
{
yasm__assoc_data *assoc_data;
assoc_data_item *item = NULL;
size_t i;
/* Create a new assoc_data if necessary */
if (assoc_data_arg)
assoc_data = assoc_data_arg;
else
assoc_data = yasm__assoc_data_create();
/* See if there's already assocated data for this callback */
for (i=0; i<assoc_data->size; i++) {
if (assoc_data->vector[i].callback == callback) {
item = &assoc_data->vector[i];
break;
}
}
/* No? Then append a new one */
if (!item) {
assoc_data->size++;
if (assoc_data->size > assoc_data->alloc) {
assoc_data->alloc *= 2;
assoc_data->vector =
yasm_xrealloc(assoc_data->vector,
assoc_data->alloc * sizeof(assoc_data_item));
}
item = &assoc_data->vector[assoc_data->size-1];
item->callback = callback;
item->data = NULL;
}
/* Delete existing data (if any) */
if (item->data && item->data != data)
item->callback->destroy(item->data);
item->data = data;
return assoc_data;
}
void
yasm__assoc_data_destroy(yasm__assoc_data *assoc_data)
{
size_t i;
if (!assoc_data)
return;
for (i=0; i<assoc_data->size; i++)
assoc_data->vector[i].callback->destroy(assoc_data->vector[i].data);
yasm_xfree(assoc_data->vector);
yasm_xfree(assoc_data);
}
void
yasm__assoc_data_print(const yasm__assoc_data *assoc_data, FILE *f,
int indent_level)
{
/*TODO*/
}
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