/*
 * BSD 3-Clause License
 *
 * Copyright (c) 2017-2018, plures
 * 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * 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 HOLDER 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 "ndtypes.h"
#include "alloc_fail.h"


/* Test allocation failures */
int alloc_fail;
int alloc_idx;


void *
ndt_alloc_fail(size_t size)
{
#ifdef TEST_ALLOC
	if (++alloc_idx >= alloc_fail) {
		return NULL;
	}
#endif
	return malloc(size);
}

void *
ndt_realloc_fail(void *ptr, size_t size)
{
#ifdef TEST_ALLOC
	if (++alloc_idx >= alloc_fail) {
		return NULL;
	}
#endif
	return realloc(ptr, size);
}

void
ndt_set_alloc_fail(void)
{
	ndt_mallocfunc = ndt_alloc_fail;
	ndt_reallocfunc = ndt_realloc_fail;
	alloc_idx = 0;
}

void
ndt_set_alloc(void)
{
	ndt_mallocfunc = malloc;
	ndt_reallocfunc = realloc;
}