mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-02 18:08:58 +00:00
41 lines
950 B
C++
41 lines
950 B
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* 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
|