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| 1 | +using System.Collections.Generic; |
| 2 | +using System.Threading; |
| 3 | +using ThunderDesign.Net_PCL.Threading.Interfaces; |
| 4 | + |
| 5 | +namespace ThunderDesign.Net.Threading.Collections |
| 6 | +{ |
| 7 | + public class QueueThreadSafe<T> : Queue<T>, IQueueThreadSafe<T> |
| 8 | + { |
| 9 | + #region constructors |
| 10 | + public QueueThreadSafe() : base() { } |
| 11 | + public QueueThreadSafe(IEnumerable<T> collection) : base(collection) { } |
| 12 | + public QueueThreadSafe(int capacity) : base(capacity) { } |
| 13 | + #endregion |
| 14 | + |
| 15 | + #region properties |
| 16 | + public bool IsSynchronized |
| 17 | + { |
| 18 | + get { return true; } |
| 19 | + } |
| 20 | + |
| 21 | + public new int Count |
| 22 | + { |
| 23 | + get |
| 24 | + { |
| 25 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 26 | + try |
| 27 | + { |
| 28 | + return base.Count; |
| 29 | + } |
| 30 | + finally |
| 31 | + { |
| 32 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 33 | + } |
| 34 | + } |
| 35 | + } |
| 36 | + #endregion |
| 37 | + |
| 38 | + #region methods |
| 39 | + public new void Clear() |
| 40 | + { |
| 41 | + _ReaderWriterLockSlim.EnterWriteLock(); |
| 42 | + try |
| 43 | + { |
| 44 | + base.Clear(); |
| 45 | + } |
| 46 | + finally |
| 47 | + { |
| 48 | + _ReaderWriterLockSlim.ExitWriteLock(); |
| 49 | + } |
| 50 | + } |
| 51 | + |
| 52 | + public new bool Contains(T item) |
| 53 | + { |
| 54 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 55 | + try |
| 56 | + { |
| 57 | + return base.Contains(item); |
| 58 | + } |
| 59 | + finally |
| 60 | + { |
| 61 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 62 | + } |
| 63 | + } |
| 64 | + |
| 65 | + public new void CopyTo(T[] array, int arrayIndex) |
| 66 | + { |
| 67 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 68 | + try |
| 69 | + { |
| 70 | + base.CopyTo(array, arrayIndex); |
| 71 | + } |
| 72 | + finally |
| 73 | + { |
| 74 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + public new T Dequeue() |
| 79 | + { |
| 80 | + _ReaderWriterLockSlim.EnterWriteLock(); |
| 81 | + try |
| 82 | + { |
| 83 | + return base.Dequeue(); |
| 84 | + } |
| 85 | + finally |
| 86 | + { |
| 87 | + _ReaderWriterLockSlim.ExitWriteLock(); |
| 88 | + } |
| 89 | + } |
| 90 | + |
| 91 | + public new void Enqueue(T item) |
| 92 | + { |
| 93 | + _ReaderWriterLockSlim.EnterWriteLock(); |
| 94 | + try |
| 95 | + { |
| 96 | + base.Enqueue(item); |
| 97 | + } |
| 98 | + finally |
| 99 | + { |
| 100 | + _ReaderWriterLockSlim.ExitWriteLock(); |
| 101 | + } |
| 102 | + } |
| 103 | + |
| 104 | + public new Enumerator GetEnumerator() |
| 105 | + { |
| 106 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 107 | + try |
| 108 | + { |
| 109 | + return base.GetEnumerator(); |
| 110 | + } |
| 111 | + finally |
| 112 | + { |
| 113 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 114 | + } |
| 115 | + } |
| 116 | + |
| 117 | + public new T Peek() |
| 118 | + { |
| 119 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 120 | + try |
| 121 | + { |
| 122 | + return base.Peek(); |
| 123 | + } |
| 124 | + finally |
| 125 | + { |
| 126 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 127 | + } |
| 128 | + } |
| 129 | + |
| 130 | + public new T[] ToArray() |
| 131 | + { |
| 132 | + _ReaderWriterLockSlim.EnterReadLock(); |
| 133 | + try |
| 134 | + { |
| 135 | + return base.ToArray(); |
| 136 | + } |
| 137 | + finally |
| 138 | + { |
| 139 | + _ReaderWriterLockSlim.ExitReadLock(); |
| 140 | + } |
| 141 | + } |
| 142 | + |
| 143 | + public new void TrimExcess() |
| 144 | + { |
| 145 | + _ReaderWriterLockSlim.EnterWriteLock(); |
| 146 | + try |
| 147 | + { |
| 148 | + base.TrimExcess(); |
| 149 | + } |
| 150 | + finally |
| 151 | + { |
| 152 | + _ReaderWriterLockSlim.ExitWriteLock(); |
| 153 | + } |
| 154 | + } |
| 155 | + #endregion |
| 156 | + |
| 157 | + #region variables |
| 158 | + protected static readonly ReaderWriterLockSlim _ReaderWriterLockSlim = new ReaderWriterLockSlim(LockRecursionPolicy.SupportsRecursion); |
| 159 | + #endregion |
| 160 | + } |
| 161 | +} |
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