mirror of
https://github.com/signalwire/freeswitch.git
synced 2025-03-10 11:49:01 +00:00
fff98f6316
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3693 d0543943-73ff-0310-b7d9-9358b9ac24b2
130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/* -*- 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
|
|
* 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 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 ***** */
|
|
|
|
/*
|
|
* GC related routines
|
|
*
|
|
*/
|
|
#include <windows.h>
|
|
#include "prlog.h"
|
|
|
|
extern PRLogModuleInfo* _pr_msgc_lm;
|
|
|
|
#define GC_VMBASE 0x40000000
|
|
#define GC_VMLIMIT 0x00FFFFFF
|
|
|
|
/************************************************************************/
|
|
/*
|
|
** Machine dependent GC Heap management routines:
|
|
** _MD_GrowGCHeap
|
|
*/
|
|
/************************************************************************/
|
|
|
|
void *baseaddr = (void*) GC_VMBASE;
|
|
void *lastaddr = (void*) GC_VMBASE;
|
|
|
|
void _MD_InitGC() {}
|
|
|
|
void *_MD_GrowGCHeap(PRUint32 *sizep)
|
|
{
|
|
void *addr;
|
|
size_t size;
|
|
|
|
/* Reserve a block of memory for the GC */
|
|
if( lastaddr == baseaddr ) {
|
|
addr = VirtualAlloc( (void *)GC_VMBASE, GC_VMLIMIT, MEM_RESERVE, PAGE_READWRITE );
|
|
|
|
/*
|
|
** If the GC_VMBASE address is already mapped, then let the OS choose a
|
|
** base address that is available...
|
|
*/
|
|
if (addr == NULL) {
|
|
addr = VirtualAlloc( NULL, GC_VMLIMIT, MEM_RESERVE, PAGE_READWRITE );
|
|
|
|
baseaddr = lastaddr = addr;
|
|
if (addr == NULL) {
|
|
PR_LOG(_pr_msgc_lm, PR_LOG_ALWAYS, ("GC: unable to allocate heap: LastError=%ld",
|
|
GetLastError()));
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
size = *sizep;
|
|
|
|
/* Extend the mapping */
|
|
addr = VirtualAlloc( lastaddr, size, MEM_COMMIT, PAGE_READWRITE );
|
|
if (addr == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
lastaddr = ((char*)addr + size);
|
|
PR_LOG(_pr_msgc_lm, PR_LOG_ALWAYS,
|
|
("GC: heap extends from %08x to %08x",
|
|
baseaddr, (long)baseaddr + (char*)lastaddr - (char*)baseaddr));
|
|
|
|
return addr;
|
|
}
|
|
|
|
PRBool _MD_ExtendGCHeap(char *base, PRInt32 oldSize, PRInt32 newSize) {
|
|
void* addr;
|
|
|
|
addr = VirtualAlloc( base + oldSize, newSize - oldSize,
|
|
MEM_COMMIT, PAGE_READWRITE );
|
|
if (NULL == addr) {
|
|
PR_LOG(_pr_msgc_lm, PR_LOG_ALWAYS, ("GC: unable to extend heap: LastError=%ld",
|
|
GetLastError()));
|
|
return PR_FALSE;
|
|
}
|
|
if (base + oldSize != (char*)addr) {
|
|
PR_LOG(_pr_msgc_lm, PR_LOG_ALWAYS, ("GC: segment extension returned %x instead of %x",
|
|
addr, base + oldSize));
|
|
VirtualFree(addr, newSize - oldSize, MEM_DECOMMIT);
|
|
return PR_FALSE;
|
|
}
|
|
lastaddr = base + newSize;
|
|
PR_LOG(_pr_msgc_lm, PR_LOG_ALWAYS,
|
|
("GC: heap now extends from %p to %p",
|
|
base, base + newSize));
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
void _MD_FreeGCSegment(void *base, PRInt32 len)
|
|
{
|
|
(void)VirtualFree(base, 0, MEM_RELEASE);
|
|
}
|