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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /ipc/glue/SharedMemory_windows.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ipc/glue/SharedMemory_windows.cpp')
-rw-r--r-- | ipc/glue/SharedMemory_windows.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/ipc/glue/SharedMemory_windows.cpp b/ipc/glue/SharedMemory_windows.cpp new file mode 100644 index 0000000000..1cc93687af --- /dev/null +++ b/ipc/glue/SharedMemory_windows.cpp @@ -0,0 +1,41 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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) { + if (!SystemProtectFallible(aAddr, aSize, aRights)) { + MOZ_CRASH("can't VirtualProtect()"); + } +} + +bool SharedMemory::SystemProtectFallible(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; + return VirtualProtect(aAddr, aSize, flags, &oldflags); +} + +size_t SharedMemory::SystemPageSize() { + SYSTEM_INFO si; + GetSystemInfo(&si); + return si.dwPageSize; +} + +} // namespace ipc +} // namespace mozilla |