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-rw-r--r--src/mscorlib/src/System/IO/UnmanagedMemoryStreamWrapper.cs220
1 files changed, 0 insertions, 220 deletions
diff --git a/src/mscorlib/src/System/IO/UnmanagedMemoryStreamWrapper.cs b/src/mscorlib/src/System/IO/UnmanagedMemoryStreamWrapper.cs
deleted file mode 100644
index 86e4707..0000000
--- a/src/mscorlib/src/System/IO/UnmanagedMemoryStreamWrapper.cs
+++ /dev/null
@@ -1,220 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-/*============================================================
-**
-**
-**
-**
-** Purpose: Create a Memorystream over an UnmanagedMemoryStream
-**
-===========================================================*/
-
-using System;
-using System.Runtime.InteropServices;
-using System.Diagnostics.CodeAnalysis;
-using System.Diagnostics.Contracts;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace System.IO
-{
- // Needed for backwards compatibility with V1.x usages of the
- // ResourceManager, where a MemoryStream is now returned as an
- // UnmanagedMemoryStream from ResourceReader.
- internal sealed class UnmanagedMemoryStreamWrapper : MemoryStream
- {
- private UnmanagedMemoryStream _unmanagedStream;
-
- internal UnmanagedMemoryStreamWrapper(UnmanagedMemoryStream stream)
- {
- _unmanagedStream = stream;
- }
-
- public override bool CanRead
- {
- [Pure]
- get { return _unmanagedStream.CanRead; }
- }
-
- public override bool CanSeek
- {
- [Pure]
- get { return _unmanagedStream.CanSeek; }
- }
-
- public override bool CanWrite
- {
- [Pure]
- get { return _unmanagedStream.CanWrite; }
- }
-
- protected override void Dispose(bool disposing)
- {
- try
- {
- if (disposing)
- _unmanagedStream.Close();
- }
- finally
- {
- base.Dispose(disposing);
- }
- }
-
- public override void Flush()
- {
- _unmanagedStream.Flush();
- }
-
- public override byte[] GetBuffer()
- {
- throw new UnauthorizedAccessException(SR.UnauthorizedAccess_MemStreamBuffer);
- }
-
- public override bool TryGetBuffer(out ArraySegment<byte> buffer)
- {
- buffer = default(ArraySegment<byte>);
- return false;
- }
-
- public override int Capacity
- {
- get
- {
- return (int)_unmanagedStream.Capacity;
- }
- [SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems.
- set
- {
- throw new IOException(SR.IO_FixedCapacity);
- }
- }
-
- public override long Length
- {
- get
- {
- return _unmanagedStream.Length;
- }
- }
-
- public override long Position
- {
- get
- {
- return _unmanagedStream.Position;
- }
- set
- {
- _unmanagedStream.Position = value;
- }
- }
-
- public override int Read([In, Out] byte[] buffer, int offset, int count)
- {
- return _unmanagedStream.Read(buffer, offset, count);
- }
-
- public override int ReadByte()
- {
- return _unmanagedStream.ReadByte();
- }
-
- public override long Seek(long offset, SeekOrigin loc)
- {
- return _unmanagedStream.Seek(offset, loc);
- }
-
- public unsafe override byte[] ToArray()
- {
- if (!_unmanagedStream._isOpen) __Error.StreamIsClosed();
- if (!_unmanagedStream.CanRead) __Error.ReadNotSupported();
-
- byte[] buffer = new byte[_unmanagedStream.Length];
- Buffer.Memcpy(buffer, 0, _unmanagedStream.Pointer, 0, (int)_unmanagedStream.Length);
- return buffer;
- }
-
- public override void Write(byte[] buffer, int offset, int count)
- {
- _unmanagedStream.Write(buffer, offset, count);
- }
-
- public override void WriteByte(byte value)
- {
- _unmanagedStream.WriteByte(value);
- }
-
- // Writes this MemoryStream to another stream.
- public unsafe override void WriteTo(Stream stream)
- {
- if (stream == null)
- throw new ArgumentNullException(nameof(stream), SR.ArgumentNull_Stream);
- Contract.EndContractBlock();
-
- if (!_unmanagedStream._isOpen) __Error.StreamIsClosed();
- if (!CanRead) __Error.ReadNotSupported();
-
- byte[] buffer = ToArray();
-
- stream.Write(buffer, 0, buffer.Length);
- }
-
- public override void SetLength(Int64 value)
- {
- // This was probably meant to call _unmanagedStream.SetLength(value), but it was forgotten in V.4.0.
- // Now this results in a call to the base which touches the underlying array which is never actually used.
- // We cannot fix it due to compat now, but we should fix this at the next SxS release oportunity.
- base.SetLength(value);
- }
-
-
- public override Task CopyToAsync(Stream destination, Int32 bufferSize, CancellationToken cancellationToken)
- {
- // The parameter checks must be in sync with the base version:
- if (destination == null)
- throw new ArgumentNullException(nameof(destination));
-
- if (bufferSize <= 0)
- throw new ArgumentOutOfRangeException(nameof(bufferSize), SR.ArgumentOutOfRange_NeedPosNum);
-
- if (!CanRead && !CanWrite)
- throw new ObjectDisposedException(null, SR.ObjectDisposed_StreamClosed);
-
- if (!destination.CanRead && !destination.CanWrite)
- throw new ObjectDisposedException(nameof(destination), SR.ObjectDisposed_StreamClosed);
-
- if (!CanRead)
- throw new NotSupportedException(SR.NotSupported_UnreadableStream);
-
- if (!destination.CanWrite)
- throw new NotSupportedException(SR.NotSupported_UnwritableStream);
-
- Contract.EndContractBlock();
-
- return _unmanagedStream.CopyToAsync(destination, bufferSize, cancellationToken);
- }
-
-
- public override Task FlushAsync(CancellationToken cancellationToken)
- {
- return _unmanagedStream.FlushAsync(cancellationToken);
- }
-
-
- public override Task<Int32> ReadAsync(Byte[] buffer, Int32 offset, Int32 count, CancellationToken cancellationToken)
- {
- return _unmanagedStream.ReadAsync(buffer, offset, count, cancellationToken);
- }
-
-
- public override Task WriteAsync(Byte[] buffer, Int32 offset, Int32 count, CancellationToken cancellationToken)
- {
- return _unmanagedStream.WriteAsync(buffer, offset, count, cancellationToken);
- }
- } // class UnmanagedMemoryStreamWrapper
-} // namespace
-
-