/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

/*
 * GC related routines
 *
 */
#include "prlog.h"

#include <stdlib.h>

/* Leave a bit of room for any malloc header bytes... */
#define MAX_SEGMENT_SIZE    (65536L - 4096L)

/************************************************************************/
/*
** Machine dependent GC Heap management routines:
**    _MD_GrowGCHeap
*/
/************************************************************************/
void _MD_InitGC() {}

void *_MD_GrowGCHeap(PRUint32 *sizep)
{
    void *addr;

    if ( *sizep > MAX_SEGMENT_SIZE )
    {
        *sizep = MAX_SEGMENT_SIZE;
    }

    addr = malloc((size_t)*sizep);
    return addr;
}


PRBool _MD_ExtendGCHeap(char *base, PRInt32 oldSize, PRInt32 newSize) {
  /* Not sure about this.  Todd?  */
  return PR_FALSE;
}


void _MD_FreeGCSegment(void *base, PRInt32 len)
{
   if (base)
   {
       free(base);
   }
}