зеркало из https://github.com/mozilla/gecko-dev.git
73 строки
2.4 KiB
C++
73 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* ***** 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 Mozilla IPC.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* The Mozilla Foundation
|
|
* Portions created by the Initial Developer are Copyright (C) 2009
|
|
* 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 <windows.h>
|
|
|
|
#include "mozilla/ipc/SharedMemory.h"
|
|
|
|
namespace mozilla {
|
|
namespace ipc {
|
|
|
|
void
|
|
SharedMemory::SystemProtect(char* aAddr, size_t aSize, int aRights)
|
|
{
|
|
DWORD flags;
|
|
if ((aRights & RightsRead) && (aRights & RightsWrite))
|
|
flags = PAGE_READWRITE;
|
|
else if (aRights & RightsRead)
|
|
flags = PAGE_READONLY;
|
|
else
|
|
flags = PAGE_NOACCESS;
|
|
|
|
DWORD oldflags;
|
|
if (!VirtualProtect(aAddr, aSize, flags, &oldflags))
|
|
NS_RUNTIMEABORT("can't VirtualProtect()");
|
|
}
|
|
|
|
size_t
|
|
SharedMemory::SystemPageSize()
|
|
{
|
|
SYSTEM_INFO si;
|
|
GetSystemInfo(&si);
|
|
return si.dwPageSize;
|
|
}
|
|
|
|
} // namespace ipc
|
|
} // namespace mozilla
|