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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <memory>
+
+#include <sal/types.h>
+
+#include <rtl/ustring.h>
+#include <salhelper/simplereferenceobject.hxx>
+
+#include <store/types.h>
+#include "storbase.hxx"
+
+namespace rtl { template <class reference_type> class Reference; }
+
+namespace store
+{
+
+class ILockBytes : public virtual salhelper::SimpleReferenceObject
+{
+public:
+ /**
+ @param rxAllocator [out]
+ @param nPageSize [in]
+ */
+ storeError initialize (
+ rtl::Reference< PageData::Allocator > & rxAllocator,
+ sal_uInt16 nPageSize);
+
+ /**
+ @param rPage [out]
+ @param nOffset [in]
+ */
+ storeError readPageAt (
+ std::shared_ptr<PageData> & rPage,
+ sal_uInt32 nOffset);
+
+ /**
+ @param rPage [in]
+ @param nOffset [in]
+ */
+ storeError writePageAt (
+ std::shared_ptr<PageData> const & rPage,
+ sal_uInt32 nOffset);
+
+ /**
+ @param nOffset [in]
+ @param pBuffer [out]
+ @param nBytes [in]
+ @return store_E_None upon success
+ */
+ storeError readAt (
+ sal_uInt32 nOffset,
+ void *pBuffer,
+ sal_uInt32 nBytes);
+
+ /**
+ @param nOffset [in]
+ @param pBuffer [in]
+ @param nBytes [in]
+ @return store_E_None upon success
+ */
+ storeError writeAt (
+ sal_uInt32 nOffset,
+ const void *pBuffer,
+ sal_uInt32 nBytes);
+
+ /**
+ @param rnSize [out]
+ @return store_E_None upon success
+ */
+ storeError getSize (sal_uInt32 & rnSize);
+
+ /**
+ @param nSize [in]
+ @return store_E_None upon success
+ */
+ storeError setSize (sal_uInt32 nSize);
+
+ /**
+ @return store_E_None upon success
+ */
+ storeError flush();
+
+protected:
+ virtual ~ILockBytes() override {}
+
+private:
+ /** Implementation (abstract).
+ */
+ virtual storeError initialize_Impl (
+ rtl::Reference< PageData::Allocator > & rxAllocator,
+ sal_uInt16 nPageSize) = 0;
+
+ virtual storeError readPageAt_Impl (
+ std::shared_ptr<PageData> & rPage,
+ sal_uInt32 nOffset) = 0;
+
+ virtual storeError writePageAt_Impl (
+ std::shared_ptr<PageData> const & rPage,
+ sal_uInt32 nOffset) = 0;
+
+ virtual storeError readAt_Impl (
+ sal_uInt32 nOffset,
+ void *pBuffer,
+ sal_uInt32 nBytes) = 0;
+
+ virtual storeError writeAt_Impl (
+ sal_uInt32 nOffset,
+ const void *pBuffer,
+ sal_uInt32 nBytes) = 0;
+
+ virtual storeError getSize_Impl (
+ sal_uInt32 & rnSize) = 0;
+
+ virtual storeError setSize_Impl (
+ sal_uInt32 nSize) = 0;
+
+ virtual storeError flush_Impl() = 0;
+};
+
+storeError FileLockBytes_createInstance (
+ rtl::Reference< store::ILockBytes > & rxLockBytes,
+ rtl_uString * pFilename,
+ storeAccessMode eAccessMode
+);
+
+storeError MemoryLockBytes_createInstance (
+ rtl::Reference< store::ILockBytes > & rxLockBytes
+);
+
+} // namespace store
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */