/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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
*
* 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 the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "prlock.h"
#include "prlog.h"
#include "prmem.h"
#include "gcint.h"
#include <stdio.h>
#include <fcntl.h>
#if defined(SOLARIS)
#elif defined(RELIANTUNIX)
#else
#endif
void _MD_InitGC(void)
{
#ifdef DEBUG
/*
* Disable using mmap(2) if NSPR_NO_MMAP is set
*/
if (getenv("NSPR_NO_MMAP")) {
zero_fd = -2;
return;
}
#endif
zero_fd_lock = PR_NewLock();
}
/* This static variable is used by _MD_GrowGCHeap and _MD_ExtendGCHeap */
{
void *addr;
if (zero_fd < 0) {
goto mmap_loses;
}
/* Extend the mapping */
zero_fd, 0);
if (addr == (void*)-1) {
zero_fd = -1;
goto mmap_loses;
}
#ifdef DEBUG
("GC: heap extends from %08x to %08x\n",
#endif
return addr;
}
/* XXX - This is disabled. MAP_FIXED just does not work. */
#if 0
void* addr;
if (addr == (void*)-1) {
goto loser;
}
goto loser;
}
("GC: heap now extends from %p to %p",
return rv;
}
#else
return PR_FALSE;
}
#endif
{
if (zero_fd < 0) {
} else {
}
}