| | | 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.Xml; |
| | | 6 | | using CoreWCF.Runtime; |
| | | 7 | | |
| | | 8 | | namespace CoreWCF.Channels |
| | | 9 | | { |
| | | 10 | | internal abstract class BufferedMessageData : IBufferedMessageData |
| | | 11 | | { |
| | | 12 | | private ArraySegment<byte> _buffer; |
| | | 13 | | private int _refCount; |
| | | 14 | | private int _outstandingReaders; |
| | | 15 | | private bool _multipleUsers; |
| | | 16 | | private RecycledMessageState _messageState; |
| | | 17 | | private readonly SynchronizedPool<RecycledMessageState> _messageStatePool; |
| | | 18 | | |
| | 632 | 19 | | public BufferedMessageData(SynchronizedPool<RecycledMessageState> messageStatePool) |
| | | 20 | | { |
| | 632 | 21 | | _messageStatePool = messageStatePool; |
| | 632 | 22 | | } |
| | | 23 | | |
| | | 24 | | public ArraySegment<byte> Buffer |
| | | 25 | | { |
| | 2301 | 26 | | get { return _buffer; } |
| | | 27 | | } |
| | | 28 | | |
| | 2007 | 29 | | public BufferManager BufferManager { get; private set; } |
| | | 30 | | |
| | | 31 | | public virtual XmlDictionaryReaderQuotas Quotas |
| | | 32 | | { |
| | 0 | 33 | | get { return XmlDictionaryReaderQuotas.Max; } |
| | | 34 | | } |
| | | 35 | | |
| | | 36 | | public abstract MessageEncoder MessageEncoder { get; } |
| | | 37 | | |
| | | 38 | | private object ThisLock |
| | | 39 | | { |
| | 2670 | 40 | | get { return this; } |
| | | 41 | | } |
| | | 42 | | |
| | | 43 | | public void EnableMultipleUsers() |
| | | 44 | | { |
| | 178 | 45 | | _multipleUsers = true; |
| | 178 | 46 | | } |
| | | 47 | | |
| | | 48 | | public void Close() |
| | | 49 | | { |
| | 617 | 50 | | if (_multipleUsers) |
| | | 51 | | { |
| | 0 | 52 | | lock (ThisLock) |
| | | 53 | | { |
| | 0 | 54 | | if (--_refCount == 0) |
| | | 55 | | { |
| | 0 | 56 | | DoClose(); |
| | | 57 | | } |
| | 0 | 58 | | } |
| | | 59 | | } |
| | | 60 | | else |
| | | 61 | | { |
| | 617 | 62 | | DoClose(); |
| | | 63 | | } |
| | 617 | 64 | | } |
| | | 65 | | |
| | | 66 | | private void DoClose() |
| | | 67 | | { |
| | 617 | 68 | | BufferManager.ReturnBuffer(_buffer.Array); |
| | 617 | 69 | | if (_outstandingReaders == 0) |
| | | 70 | | { |
| | 516 | 71 | | BufferManager = null; |
| | 516 | 72 | | _buffer = new ArraySegment<byte>(); |
| | 516 | 73 | | OnClosed(); |
| | | 74 | | } |
| | 617 | 75 | | } |
| | | 76 | | |
| | | 77 | | public void DoReturnMessageState(RecycledMessageState messageState) |
| | | 78 | | { |
| | 617 | 79 | | if (_messageState == null) |
| | | 80 | | { |
| | 617 | 81 | | _messageState = messageState; |
| | | 82 | | } |
| | | 83 | | else |
| | | 84 | | { |
| | 0 | 85 | | _messageStatePool.Return(messageState); |
| | | 86 | | } |
| | 0 | 87 | | } |
| | | 88 | | |
| | | 89 | | private void DoReturnXmlReader(XmlDictionaryReader reader) |
| | | 90 | | { |
| | 1867 | 91 | | ReturnXmlReader(reader); |
| | 1867 | 92 | | _outstandingReaders--; |
| | 1867 | 93 | | } |
| | | 94 | | |
| | | 95 | | public RecycledMessageState DoTakeMessageState() |
| | | 96 | | { |
| | 1052 | 97 | | RecycledMessageState messageState = _messageState; |
| | 1052 | 98 | | if (messageState != null) |
| | | 99 | | { |
| | 242 | 100 | | _messageState = null; |
| | 242 | 101 | | return messageState; |
| | | 102 | | } |
| | | 103 | | else |
| | | 104 | | { |
| | 810 | 105 | | return _messageStatePool.Take(); |
| | | 106 | | } |
| | | 107 | | } |
| | | 108 | | |
| | | 109 | | private XmlDictionaryReader DoTakeXmlReader() |
| | | 110 | | { |
| | 2301 | 111 | | XmlDictionaryReader reader = TakeXmlReader(); |
| | 2301 | 112 | | _outstandingReaders++; |
| | 2301 | 113 | | return reader; |
| | | 114 | | } |
| | | 115 | | |
| | | 116 | | public XmlDictionaryReader GetMessageReader() |
| | | 117 | | { |
| | 2301 | 118 | | if (_multipleUsers) |
| | | 119 | | { |
| | 1068 | 120 | | lock (ThisLock) |
| | | 121 | | { |
| | 1068 | 122 | | return DoTakeXmlReader(); |
| | | 123 | | } |
| | | 124 | | } |
| | | 125 | | else |
| | | 126 | | { |
| | 1233 | 127 | | return DoTakeXmlReader(); |
| | | 128 | | } |
| | 1068 | 129 | | } |
| | | 130 | | |
| | | 131 | | public void OnXmlReaderClosed(XmlDictionaryReader reader) |
| | | 132 | | { |
| | 1867 | 133 | | if (_multipleUsers) |
| | | 134 | | { |
| | 1068 | 135 | | lock (ThisLock) |
| | | 136 | | { |
| | 1068 | 137 | | DoReturnXmlReader(reader); |
| | 1068 | 138 | | } |
| | | 139 | | } |
| | | 140 | | else |
| | | 141 | | { |
| | 799 | 142 | | DoReturnXmlReader(reader); |
| | | 143 | | } |
| | 1867 | 144 | | } |
| | | 145 | | |
| | | 146 | | protected virtual void OnClosed() |
| | | 147 | | { |
| | 0 | 148 | | } |
| | | 149 | | |
| | | 150 | | public RecycledMessageState TakeMessageState() |
| | | 151 | | { |
| | 1052 | 152 | | if (_multipleUsers) |
| | | 153 | | { |
| | 178 | 154 | | lock (ThisLock) |
| | | 155 | | { |
| | 178 | 156 | | return DoTakeMessageState(); |
| | | 157 | | } |
| | | 158 | | } |
| | | 159 | | else |
| | | 160 | | { |
| | 874 | 161 | | return DoTakeMessageState(); |
| | | 162 | | } |
| | 178 | 163 | | } |
| | | 164 | | |
| | | 165 | | protected abstract XmlDictionaryReader TakeXmlReader(); |
| | | 166 | | |
| | | 167 | | public void Open() |
| | | 168 | | { |
| | 356 | 169 | | lock (ThisLock) |
| | | 170 | | { |
| | 356 | 171 | | _refCount++; |
| | 356 | 172 | | } |
| | 356 | 173 | | } |
| | | 174 | | |
| | | 175 | | public void Open(ArraySegment<byte> buffer, BufferManager bufferManager) |
| | | 176 | | { |
| | 874 | 177 | | _refCount = 1; |
| | 874 | 178 | | BufferManager = bufferManager; |
| | 874 | 179 | | _buffer = buffer; |
| | 874 | 180 | | _multipleUsers = false; |
| | 874 | 181 | | } |
| | | 182 | | |
| | | 183 | | protected abstract void ReturnXmlReader(XmlDictionaryReader xmlReader); |
| | | 184 | | |
| | | 185 | | public void ReturnMessageState(RecycledMessageState messageState) |
| | | 186 | | { |
| | 617 | 187 | | if (_multipleUsers) |
| | | 188 | | { |
| | 0 | 189 | | lock (ThisLock) |
| | | 190 | | { |
| | 0 | 191 | | DoReturnMessageState(messageState); |
| | 0 | 192 | | } |
| | | 193 | | } |
| | | 194 | | else |
| | | 195 | | { |
| | 617 | 196 | | DoReturnMessageState(messageState); |
| | | 197 | | } |
| | 617 | 198 | | } |
| | | 199 | | } |
| | | 200 | | } |