1 files changed, 40 insertions, 0 deletions
diff --git a/include/comphelper/bytereader.hxx b/include/comphelper/bytereader.hxx
new file mode 100644
index 0000000000..f683473bf3
--- /dev/null
+++ b/include/comphelper/bytereader.hxx
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ */
+#pragma once
+
+#include <sal/types.h>
+#include <comphelper/comphelperdllapi.h>
+
+namespace comphelper
+{
+/**
+ * Interface that we can cast to, to bypass the inefficiency of using Sequence<sal_Int8>
+ * when reading via XInputStream.
+ */
+class COMPHELPER_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ByteReader
+{
+public:
+    virtual ~ByteReader();
+    virtual sal_Int32 readSomeBytes(sal_Int8* aData, sal_Int32 nBytesToRead) = 0;
+};
+
+/**
+ * Interface that we can cast to, to bypass the inefficiency of using Sequence<sal_Int8>
+ * when writing via XOutputStream.
+ */
+class COMPHELPER_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ByteWriter
+{
+public:
+    virtual ~ByteWriter();
+    virtual void writeBytes(const sal_Int8* aData, sal_Int32 nBytesToWrite) = 0;
+};
+
+} // namespace utl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */