1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/glue/SharedMemory_windows.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,40 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include <windows.h>
1.12 +
1.13 +#include "mozilla/ipc/SharedMemory.h"
1.14 +
1.15 +namespace mozilla {
1.16 +namespace ipc {
1.17 +
1.18 +void
1.19 +SharedMemory::SystemProtect(char* aAddr, size_t aSize, int aRights)
1.20 +{
1.21 + DWORD flags;
1.22 + if ((aRights & RightsRead) && (aRights & RightsWrite))
1.23 + flags = PAGE_READWRITE;
1.24 + else if (aRights & RightsRead)
1.25 + flags = PAGE_READONLY;
1.26 + else
1.27 + flags = PAGE_NOACCESS;
1.28 +
1.29 + DWORD oldflags;
1.30 + if (!VirtualProtect(aAddr, aSize, flags, &oldflags))
1.31 + NS_RUNTIMEABORT("can't VirtualProtect()");
1.32 +}
1.33 +
1.34 +size_t
1.35 +SharedMemory::SystemPageSize()
1.36 +{
1.37 + SYSTEM_INFO si;
1.38 + GetSystemInfo(&si);
1.39 + return si.dwPageSize;
1.40 +}
1.41 +
1.42 +} // namespace ipc
1.43 +} // namespace mozilla
