138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/*
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* YASM associated data storage (libyasm internal use)
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*
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* Copyright (C) 2003-2007 Peter Johnson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "util.h"
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/*@unused@*/ RCSID("$Id: assocdat.c 1893 2007-07-14 03:11:32Z peter $");
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#include "coretype.h"
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#include "assocdat.h"
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typedef struct assoc_data_item {
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const yasm_assoc_data_callback *callback;
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void *data;
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} assoc_data_item;
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struct yasm__assoc_data {
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assoc_data_item *vector;
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size_t size;
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size_t alloc;
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};
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yasm__assoc_data *
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yasm__assoc_data_create(void)
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{
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yasm__assoc_data *assoc_data = yasm_xmalloc(sizeof(yasm__assoc_data));
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assoc_data->size = 0;
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assoc_data->alloc = 2;
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assoc_data->vector = yasm_xmalloc(assoc_data->alloc *
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sizeof(assoc_data_item));
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return assoc_data;
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}
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void *
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yasm__assoc_data_get(yasm__assoc_data *assoc_data,
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const yasm_assoc_data_callback *callback)
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{
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size_t i;
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if (!assoc_data)
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return NULL;
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for (i=0; i<assoc_data->size; i++) {
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if (assoc_data->vector[i].callback == callback)
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return assoc_data->vector[i].data;
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}
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return NULL;
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}
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yasm__assoc_data *
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yasm__assoc_data_add(yasm__assoc_data *assoc_data_arg,
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const yasm_assoc_data_callback *callback, void *data)
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{
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yasm__assoc_data *assoc_data;
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assoc_data_item *item = NULL;
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size_t i;
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/* Create a new assoc_data if necessary */
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if (assoc_data_arg)
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assoc_data = assoc_data_arg;
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else
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assoc_data = yasm__assoc_data_create();
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/* See if there's already assocated data for this callback */
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for (i=0; i<assoc_data->size; i++) {
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if (assoc_data->vector[i].callback == callback)
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item = &assoc_data->vector[i];
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}
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/* No? Then append a new one */
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if (!item) {
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assoc_data->size++;
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if (assoc_data->size > assoc_data->alloc) {
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assoc_data->alloc *= 2;
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assoc_data->vector =
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yasm_xrealloc(assoc_data->vector,
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assoc_data->alloc * sizeof(assoc_data_item));
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}
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item = &assoc_data->vector[assoc_data->size-1];
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item->callback = callback;
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item->data = NULL;
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}
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/* Delete existing data (if any) */
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if (item->data && item->data != data)
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item->callback->destroy(item->data);
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item->data = data;
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return assoc_data;
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}
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void
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yasm__assoc_data_destroy(yasm__assoc_data *assoc_data)
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{
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size_t i;
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if (!assoc_data)
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return;
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for (i=0; i<assoc_data->size; i++)
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assoc_data->vector[i].callback->destroy(assoc_data->vector[i].data);
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yasm_xfree(assoc_data->vector);
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yasm_xfree(assoc_data);
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}
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void
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yasm__assoc_data_print(const yasm__assoc_data *assoc_data, FILE *f,
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int indent_level)
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{
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/*TODO*/
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}
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