1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/plugins/ipc/hangui/MiniShmChild.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_plugins_MiniShmChild_h
1.11 +#define mozilla_plugins_MiniShmChild_h
1.12 +
1.13 +#include "MiniShmBase.h"
1.14 +
1.15 +#include <string>
1.16 +
1.17 +namespace mozilla {
1.18 +namespace plugins {
1.19 +
1.20 +/**
1.21 + * This class provides a lightweight shared memory interface for a child
1.22 + * process in Win32.
1.23 + * This code assumes that there is a parent-child relationship between
1.24 + * processes, as it inherits handles from the parent process.
1.25 + * Note that this class is *not* an IPDL actor.
1.26 + *
1.27 + * @see MiniShmParent
1.28 + */
1.29 +class MiniShmChild : public MiniShmBase
1.30 +{
1.31 +public:
1.32 + MiniShmChild();
1.33 + virtual ~MiniShmChild();
1.34 +
1.35 + /**
1.36 + * Initialize shared memory on the child side.
1.37 + *
1.38 + * @param aObserver A MiniShmObserver object to receive event notifications.
1.39 + * @param aCookie Cookie obtained from MiniShmParent::GetCookie
1.40 + * @param aTimeout Timeout in milliseconds.
1.41 + * @return nsresult error code
1.42 + */
1.43 + nsresult
1.44 + Init(MiniShmObserver* aObserver, const std::wstring& aCookie,
1.45 + const DWORD aTimeout);
1.46 +
1.47 + virtual nsresult
1.48 + Send() MOZ_OVERRIDE;
1.49 +
1.50 +protected:
1.51 + void
1.52 + OnEvent() MOZ_OVERRIDE;
1.53 +
1.54 +private:
1.55 + HANDLE mParentEvent;
1.56 + HANDLE mParentGuard;
1.57 + HANDLE mChildEvent;
1.58 + HANDLE mChildGuard;
1.59 + HANDLE mFileMapping;
1.60 + HANDLE mRegWait;
1.61 + LPVOID mView;
1.62 + DWORD mTimeout;
1.63 +
1.64 + DISALLOW_COPY_AND_ASSIGN(MiniShmChild);
1.65 +};
1.66 +
1.67 +} // namespace plugins
1.68 +} // namespace mozilla
1.69 +
1.70 +#endif // mozilla_plugins_MiniShmChild_h
1.71 +
