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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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diff --git a/dom/plugins/ipc/hangui/MiniShmChild.h b/dom/plugins/ipc/hangui/MiniShmChild.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+#ifndef mozilla_plugins_MiniShmChild_h
+#define mozilla_plugins_MiniShmChild_h
+
+#include "MiniShmBase.h"
+
+#include <string>
+
+namespace mozilla {
+namespace plugins {
+
+/**
+ * This class provides a lightweight shared memory interface for a child
+ * process in Win32.
+ * This code assumes that there is a parent-child relationship between
+ * processes, as it inherits handles from the parent process.
+ * Note that this class is *not* an IPDL actor.
+ *
+ * @see MiniShmParent
+ */
+class MiniShmChild : public MiniShmBase
+{
+public:
+ MiniShmChild();
+ virtual ~MiniShmChild();
+
+ /**
+ * Initialize shared memory on the child side.
+ *
+ * @param aObserver A MiniShmObserver object to receive event notifications.
+ * @param aCookie Cookie obtained from MiniShmParent::GetCookie
+ * @param aTimeout Timeout in milliseconds.
+ * @return nsresult error code
+ */
+ nsresult
+ Init(MiniShmObserver* aObserver, const std::wstring& aCookie,
+ const DWORD aTimeout);
+
+ virtual nsresult
+ Send() override;
+
+protected:
+ void
+ OnEvent() override;
+
+private:
+ HANDLE mParentEvent;
+ HANDLE mParentGuard;
+ HANDLE mChildEvent;
+ HANDLE mChildGuard;
+ HANDLE mFileMapping;
+ HANDLE mRegWait;
+ LPVOID mView;
+ DWORD mTimeout;
+
+ DISALLOW_COPY_AND_ASSIGN(MiniShmChild);
+};
+
+} // namespace plugins
+} // namespace mozilla
+
+#endif // mozilla_plugins_MiniShmChild_h
+