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/*
* This file is part of libdom.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2021 Michael Drake <tlsa@netsurf-browser.org>
*/
/** \file
* This is an API for walking a loaded DOM.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <dom/dom.h>
struct dom_refcheck {
size_t len;
uintptr_t *array;
};
struct dom_refcheck *dom_refcheck(
struct dom_refcheck *rc,
uint32_t refcnt)
{
if (rc == NULL) {
rc = calloc(1, sizeof(*rc));
if (rc == NULL) {
goto out;
}
if (refcnt == 0) {
goto out;
}
}
fprintf(stderr, "%p: refcnt: %u, len: %zu\n", rc, refcnt, rc->len);
if (refcnt == rc->len - 1) {
//rc->array[refcnt] ^= UINTPTR_MAX;
free((void *)rc->array[refcnt]);
rc->array[refcnt] = (uintptr_t)NULL;
rc->len = refcnt;
} else if (refcnt == rc->len + 1) {
uintptr_t *temp = realloc(rc->array, sizeof(*temp) * refcnt);
if (temp == NULL) {
goto out;
}
rc->array = temp;
rc->array[rc->len] = (uintptr_t)malloc(1);
//rc->array[rc->len] ^= UINTPTR_MAX;
rc->len = refcnt;
}
if (refcnt == 0) {
free(rc->array);
free(rc);
rc = NULL;
goto out;
} else {
}
out:
return rc;
}
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