sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include <3gplibrary/mp4config.h>
sl@0: #include <stdlib.h>
sl@0: #include <string.h>
sl@0: 
sl@0: 
sl@0: /*
sl@0:  * Function:
sl@0:  *
sl@0:  *   void *mp4malloc(size_t size)
sl@0:  *
sl@0:  * Description:
sl@0:  *
sl@0:  *   This is a wrapper for standard C library function calloc.
sl@0:  *
sl@0:  * Parameters:
sl@0:  *
sl@0:  *   size   Size of memory block to be allocated.
sl@0:  *
sl@0:  * Return value:
sl@0:  *
sl@0:  *   See calloc.
sl@0:  *
sl@0:  */
sl@0: void *mp4malloc(size_t size)
sl@0: 	{
sl@0: 	TInt sizex = size;
sl@0:   
sl@0: 	if ( sizex <= 0 || sizex >= KMaxTInt/2 )
sl@0: 		{
sl@0: 		return NULL;    // calloc will panic with negative values or size >= KMaxTInt / 2
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return calloc(size, 1);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /*
sl@0:  * Function:
sl@0:  *
sl@0:  *   void *mp4realloc(void *memblock,
sl@0:  *                    size_t size,
sl@0:  *                    size_t oldsize)
sl@0:  *
sl@0:  * Description:
sl@0:  *
sl@0:  *   This is a wrapper for standard C library function realloc.
sl@0:  *
sl@0:  * Parameters:
sl@0:  *
sl@0:  *   memblock   Allocated memory pointer
sl@0:  *   size       New size
sl@0:  *   oldsize    Size of memblock
sl@0:  *
sl@0:  * Return value:
sl@0:  *
sl@0:  *   See realloc.
sl@0:  *
sl@0:  */
sl@0: void *mp4realloc(void *memblock, size_t size, size_t oldsize)
sl@0: {
sl@0:   void *p;
sl@0: 
sl@0:   p = realloc(memblock, size);
sl@0:   if (p == NULL)
sl@0:     return p;
sl@0: 
sl@0:   memset(((mp4_u8 *)p) + oldsize, 0, size - oldsize);
sl@0: 
sl@0:   return p;
sl@0: }
sl@0: 
sl@0: 
sl@0: /*
sl@0:  * Function:
sl@0:  *
sl@0:  *   void mp4free(void *mem)
sl@0:  *
sl@0:  * Description:
sl@0:  *
sl@0:  *   This is a wrapper for standard C library function free.
sl@0:  *
sl@0:  * Parameters:
sl@0:  *
sl@0:  *   mem   Pointer to allocated memory
sl@0:  *
sl@0:  * Return value:
sl@0:  *
sl@0:  *   None
sl@0:  *
sl@0:  */
sl@0: void mp4free(void *mem)
sl@0: {
sl@0:   free(mem);
sl@0: }
sl@0: 
sl@0: 
sl@0: /*
sl@0:  * Function:
sl@0:  *
sl@0:  *   void *mp4memcpy(void *dest,
sl@0:  *                   void *src,
sl@0:  *                   mp4_u32 count)
sl@0:  *
sl@0:  * Description:
sl@0:  *
sl@0:  *   This is a wrapper for standard C library function memcpy.
sl@0:  *
sl@0:  * Parameters:
sl@0:  *
sl@0:  *   dest    Destination of copy
sl@0:  *   src     Source of copy
sl@0:  *   count   Number of nytes to copy
sl@0:  *
sl@0:  * Return value:
sl@0:  *
sl@0:  *   See memcpy.
sl@0:  *
sl@0:  */
sl@0: void *mp4memcpy(void *dest, void *src, mp4_u32 count)
sl@0: {
sl@0:   memcpy(dest, src, count);
sl@0: 
sl@0:   return dest;
sl@0: }
sl@0: 
sl@0: // End of File