/**

 *  Copyright Notice:

 *  Copyright 2021-2022 DMTF. All rights reserved.

 *  License: BSD 3-Clause License. For full text see link: https://github.com/DMTF/libspdm/blob/main/LICENSE.md

 **/

#include "hal/library/memlib.h"

#ifdef _WIN32

#include <windows.h>

#elif defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#include <strings.h>

#include <string.h>

#endif

void libspdm_zero_mem(void *buffer, size_t length)

{

#if defined(__STDC_LIB_EXT1__)

    memset_s(buffer, length, 0, length);

#elif defined(_WIN32)

    SecureZeroMemory(buffer, length);

#elif defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

    explicit_bzero(buffer, length);

#else

    volatile uint8_t *pointer;

    pointer = (uint8_t *)buffer;

    while (length-- != 0) {

        *(pointer++) = 0;

    }

#if defined(_MSC_VER) && (_MSC_VER > 1200) && !defined(__clang__)

    _ReadWriteBarrier();

#elif defined(__GNUC__)

    __asm__ __volatile__ ("" : : : "memory");

#endif

#endif

}