| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System; |
| | | 5 | | using System.IO; |
| | | 6 | | using CoreWCF.Runtime; |
| | | 7 | | |
| | | 8 | | namespace CoreWCF.Channels |
| | | 9 | | { |
| | | 10 | | internal class ByteStreamBufferedMessageData |
| | | 11 | | { |
| | | 12 | | private ArraySegment<byte> _buffer; |
| | | 13 | | private BufferManager _bufferManager; |
| | | 14 | | private int _refCount; |
| | | 15 | | |
| | | 16 | | public ByteStreamBufferedMessageData(ArraySegment<byte> buffer) |
| | 1 | 17 | | : this(buffer, null) |
| | | 18 | | { |
| | 1 | 19 | | } |
| | | 20 | | |
| | 12 | 21 | | public ByteStreamBufferedMessageData(ArraySegment<byte> buffer, BufferManager bufferManager) |
| | | 22 | | { |
| | 12 | 23 | | if (buffer.Array == null) |
| | | 24 | | { |
| | 0 | 25 | | throw Fx.Exception.ArgumentNull(SR.Format(SR.ArgumentPropertyShouldNotBeNullError, "buffer.Array")); |
| | | 26 | | } |
| | | 27 | | |
| | 12 | 28 | | _buffer = buffer; |
| | 12 | 29 | | _bufferManager = bufferManager; |
| | 12 | 30 | | _refCount = 0; |
| | 12 | 31 | | } |
| | | 32 | | |
| | 79 | 33 | | private bool IsClosed => _refCount < 0; |
| | | 34 | | |
| | | 35 | | public ArraySegment<byte> Buffer |
| | | 36 | | { |
| | | 37 | | get |
| | | 38 | | { |
| | 48 | 39 | | ThrowIfClosed(); |
| | 48 | 40 | | return _buffer; |
| | | 41 | | } |
| | | 42 | | } |
| | | 43 | | |
| | | 44 | | public void Open() |
| | | 45 | | { |
| | 19 | 46 | | ThrowIfClosed(); |
| | 19 | 47 | | _refCount++; |
| | 19 | 48 | | } |
| | | 49 | | |
| | | 50 | | public void Close() |
| | | 51 | | { |
| | 12 | 52 | | if (!IsClosed) |
| | | 53 | | { |
| | 12 | 54 | | if (--_refCount <= 0) |
| | | 55 | | { |
| | 5 | 56 | | if (_bufferManager != null && _buffer.Array != null) |
| | | 57 | | { |
| | 1 | 58 | | _bufferManager.ReturnBuffer(_buffer.Array); |
| | | 59 | | } |
| | | 60 | | |
| | 5 | 61 | | _bufferManager = null; |
| | 5 | 62 | | _buffer = default; |
| | 5 | 63 | | _refCount = int.MinValue; |
| | | 64 | | } |
| | | 65 | | } |
| | 12 | 66 | | } |
| | | 67 | | |
| | 2 | 68 | | public Stream ToStream() => new ByteStreamBufferedMessageDataStream(this); |
| | | 69 | | |
| | | 70 | | private void ThrowIfClosed() |
| | | 71 | | { |
| | 67 | 72 | | if (IsClosed) |
| | | 73 | | { |
| | 0 | 74 | | throw Fx.Exception.ObjectDisposed(SR.Format(SR.ObjectDisposed, this)); |
| | | 75 | | } |
| | 67 | 76 | | } |
| | | 77 | | |
| | | 78 | | internal class ByteStreamBufferedMessageDataStream : MemoryStream |
| | | 79 | | { |
| | | 80 | | private readonly ByteStreamBufferedMessageData _byteStreamBufferedMessageData; |
| | | 81 | | |
| | | 82 | | public ByteStreamBufferedMessageDataStream(ByteStreamBufferedMessageData byteStreamBufferedMessageData) |
| | 2 | 83 | | : base(byteStreamBufferedMessageData.Buffer.Array, byteStreamBufferedMessageData.Buffer.Offset, byteStre |
| | | 84 | | { |
| | 2 | 85 | | _byteStreamBufferedMessageData = byteStreamBufferedMessageData; |
| | 2 | 86 | | _byteStreamBufferedMessageData.Open(); //increment the refCount |
| | 2 | 87 | | } |
| | | 88 | | |
| | | 89 | | public override void Close() |
| | | 90 | | { |
| | 1 | 91 | | _byteStreamBufferedMessageData.Close(); |
| | 1 | 92 | | base.Close(); |
| | 1 | 93 | | } |
| | | 94 | | } |
| | | 95 | | } |
| | | 96 | | } |