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stgsharp/内核源代码/StgSgharp.Generator.Expression/ExpressionReader/ExpReader.cs
T

89 lines
3.1 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="ExpReader.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using Microsoft.CodeAnalysis.CSharp.Syntax;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.MemoryMappedFiles;
using System.Text;
namespace StgSharp.Expression
{
internal class ExpFileReader : IDisposable
{
private bool disposedValue;
private FileStream _expFileStream;
private MemoryMappedFile _expMemoryMappedFile;
public ExpFileReader( string path )
{
if( !File.Exists( path ) ) {
throw new FileNotFoundException();
}
_expFileStream = new FileStream(
path, FileMode.Open, FileAccess.Read );
_expMemoryMappedFile = MemoryMappedFile.CreateFromFile(
_expFileStream, null, 0, MemoryMappedFileAccess.Read,
HandleInheritability.None, true );
}
public MemoryMappedViewStream CreateMemoryStram()
{
return _expMemoryMappedFile.CreateViewStream();
}
// ~ExpFileReader()
// {
// Dispose(disposing: false);
// }
public void Dispose()
{
Dispose( disposing: true );
GC.SuppressFinalize( this );
}
protected virtual void Dispose( bool disposing )
{
if( !disposedValue ) {
if( disposing ) {
_expFileStream.Dispose();
_expMemoryMappedFile.Dispose();
}
disposedValue = true;
}
}
}
}