gecko-dev/ipc/glue/SharedMemory_windows.cpp

41 строка
950 B
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
2012-05-21 15:12:37 +04:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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