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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
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /ipc/mscom/ProxyStream.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'ipc/mscom/ProxyStream.h')
-rw-r--r--ipc/mscom/ProxyStream.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/ipc/mscom/ProxyStream.h b/ipc/mscom/ProxyStream.h
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+++ b/ipc/mscom/ProxyStream.h
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+/* -*- 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/. */
+
+#ifndef mozilla_mscom_ProxyStream_h
+#define mozilla_mscom_ProxyStream_h
+
+#include "ipc/IPCMessageUtils.h"
+
+#include "mozilla/mscom/Ptr.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+namespace mscom {
+
+class ProxyStream
+{
+public:
+ ProxyStream();
+ ProxyStream(REFIID aIID, IUnknown* aObject);
+ ProxyStream(const BYTE* aInitBuf, const int aInitBufSize);
+
+ ~ProxyStream();
+
+ // Not copyable because this would mess up the COM marshaling.
+ ProxyStream(const ProxyStream& aOther) = delete;
+ ProxyStream& operator=(const ProxyStream& aOther) = delete;
+
+ ProxyStream(ProxyStream&& aOther);
+ ProxyStream& operator=(ProxyStream&& aOther);
+
+ inline bool IsValid() const
+ {
+ // This check must be exclusive OR
+ return (mStream && !mUnmarshaledProxy) || (mUnmarshaledProxy && !mStream);
+ }
+
+ bool GetInterface(REFIID aIID, void** aOutInterface) const;
+ const BYTE* GetBuffer(int& aReturnedBufSize) const;
+
+ bool operator==(const ProxyStream& aOther) const
+ {
+ return this == &aOther;
+ }
+
+private:
+ already_AddRefed<IStream> InitStream(const BYTE* aInitBuf,
+ const UINT aInitBufSize);
+
+private:
+ RefPtr<IStream> mStream;
+ BYTE* mGlobalLockedBuf;
+ HGLOBAL mHGlobal;
+ int mBufSize;
+ ProxyUniquePtr<IUnknown> mUnmarshaledProxy;
+};
+
+} // namespace mscom
+} // namespace mozilla
+
+#endif // mozilla_mscom_ProxyStream_h