// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include <3gplibrary/mp4config.h>

#include <stdlib.h>

#include <string.h>

/*

 * Function:

 *

 *   void *mp4malloc(size_t size)

 *

 * Description:

 *

 *   This is a wrapper for standard C library function calloc.

 *

 * Parameters:

 *

 *   size   Size of memory block to be allocated.

 *

 * Return value:

 *

 *   See calloc.

 *

 */

void *mp4malloc(size_t size)

	{

	TInt sizex = size;

	if ( sizex <= 0 || sizex >= KMaxTInt/2 )

		{

		return NULL;    // calloc will panic with negative values or size >= KMaxTInt / 2

		}

	else

		{

		return calloc(size, 1);

		}

	}

/*

 * Function:

 *

 *   void *mp4realloc(void *memblock,

 *                    size_t size,

 *                    size_t oldsize)

 *

 * Description:

 *

 *   This is a wrapper for standard C library function realloc.

 *

 * Parameters:

 *

 *   memblock   Allocated memory pointer

 *   size       New size

 *   oldsize    Size of memblock

 *

 * Return value:

 *

 *   See realloc.

 *

 */

void *mp4realloc(void *memblock, size_t size, size_t oldsize)

{

  void *p;

  p = realloc(memblock, size);

  if (p == NULL)

    return p;

  memset(((mp4_u8 *)p) + oldsize, 0, size - oldsize);

  return p;

}

/*

 * Function:

 *

 *   void mp4free(void *mem)

 *

 * Description:

 *

 *   This is a wrapper for standard C library function free.

 *

 * Parameters:

 *

 *   mem   Pointer to allocated memory

 *

 * Return value:

 *

 *   None

 *

 */

void mp4free(void *mem)

{

  free(mem);

}

/*

 * Function:

 *

 *   void *mp4memcpy(void *dest,

 *                   void *src,

 *                   mp4_u32 count)

 *

 * Description:

 *

 *   This is a wrapper for standard C library function memcpy.

 *

 * Parameters:

 *

 *   dest    Destination of copy

 *   src     Source of copy

 *   count   Number of nytes to copy

 *

 * Return value:

 *

 *   See memcpy.

 *

 */

void *mp4memcpy(void *dest, void *src, mp4_u32 count)

{

  memcpy(dest, src, count);

  return dest;

}

// End of File