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MemoryMappedFile demo initial commit.
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‎MemoryMappedFileDemo/FileStore/DataStructure/FileStructure.cs‎

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/*
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FileStructure - Contains the File Structure for all Memory Mapped Files
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Copyright (c) 2013 Dror Gluska
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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(LGPL) as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The terms of redistributing and/or modifying this software also
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include exceptions to the LGPL that facilitate static linking.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Change log:
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2013-03-15 - Initial version
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace FileStore.DataStructure
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{
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/// <summary>
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/// Contains the File Structure for all Memory Mapped Files
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/// </summary>
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[StructLayout(LayoutKind.Explicit, Pack = 1, Size = 19, CharSet = CharSet.Unicode)]
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struct FileStructure
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{
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/// <summary>
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/// Structure Length
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/// <remarks>Saves a call to Marshal</remarks>
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/// </summary>
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public const int StructureLength = 19;
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//Signature is split to individual bytes for speed
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[FieldOffset(0)]
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public byte SignatureA;
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[FieldOffset(1)]
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public byte SignatureB;
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[FieldOffset(2)]
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public byte SignatureC;
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/// <summary>
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/// Last Written Byte
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/// </summary>
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[FieldOffset(3)]
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public Int64 LastByte;
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/// <summary>
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/// Physical File Size
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/// </summary>
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[FieldOffset(11)]
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public Int64 FileSize;
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}
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}

‎MemoryMappedFileDemo/FileStore/DataStructure/LogicalEntry.cs‎

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/*
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LogicalEntry - Logical File Entry
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Copyright (c) 2013 Dror Gluska
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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(LGPL) as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The terms of redistributing and/or modifying this software also
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include exceptions to the LGPL that facilitate static linking.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Change log:
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2013-03-15 - Initial version
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace FileStore.DataStructure
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{
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/// <summary>
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/// Logical File Entry
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/// </summary>
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[StructLayout(LayoutKind.Explicit,Pack=1,Size=32, CharSet=CharSet.Unicode)]
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struct LogicalEntry
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{
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/// <summary>
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/// Structure Length
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/// <remarks>Saves a call to Marshal</remarks>
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/// </summary>
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public const int StructureLength = 32;
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/// <summary>
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/// The Id of the Entry
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/// </summary>
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[FieldOffset(0)]
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public Guid Id;
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/// <summary>
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/// Offset this entry is located in
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/// </summary>
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[FieldOffset(16)]
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public Int64 Offset;
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/// <summary>
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/// Length of this entry
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/// </summary>
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[FieldOffset(24)]
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public Int64 Length;
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}
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}

‎MemoryMappedFileDemo/FileStore/FileStore.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProductVersion>8.0.30703</ProductVersion>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectGuid>{077E3E8E-D511-4AE0-84A9-6EC85A6E407B}</ProjectGuid>
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<OutputType>Library</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>FileStore</RootNamespace>
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<AssemblyName>FileStore</AssemblyName>
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<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<PlatformTarget>x86</PlatformTarget>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Data" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="DataStructure\FileStructure.cs" />
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<Compile Include="DataStructure\LogicalEntry.cs" />
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<Compile Include="FileStoreManager.cs" />
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<Compile Include="Mapper\Collections\VirtualViewContainer.cs" />
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<Compile Include="Mapper\Collections\MemoryMappedViewContainer.cs" />
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<Compile Include="Mapper\Collections\MemoryMappedStreamContainer.cs" />
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<Compile Include="Mapper\Collections\VirtualStreamContainer.cs" />
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<Compile Include="Mapper\MapperStatistics.cs" />
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<Compile Include="Mapper\VirtualStream.cs" />
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<Compile Include="Mapper\VirtualView.cs" />
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<Compile Include="Mapper\MemoryMapper.cs" />
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<Compile Include="Mapper\Range.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup />
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>

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