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authorJeff Ames2008-05-02 03:34:06 +0000
committerJeff Ames2008-05-02 03:34:06 +0000
commit058191e6cc45d546058ba0a0ae18054f7ada3bf6 (patch)
treeaf81714bf91d323b0c2084b8ac94fd9ece381ed6 /OpenSim/Framework/Communications/GenericAsyncResult.cs
parentMinimize binary size and external dependencies in OS X LaunchSLClient.app cre... (diff)
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Diffstat (limited to 'OpenSim/Framework/Communications/GenericAsyncResult.cs')
-rw-r--r--OpenSim/Framework/Communications/GenericAsyncResult.cs310
1 files changed, 155 insertions, 155 deletions
diff --git a/OpenSim/Framework/Communications/GenericAsyncResult.cs b/OpenSim/Framework/Communications/GenericAsyncResult.cs
index ed41614..6c5f5f7 100644
--- a/OpenSim/Framework/Communications/GenericAsyncResult.cs
+++ b/OpenSim/Framework/Communications/GenericAsyncResult.cs
@@ -1,156 +1,156 @@
1using System; 1using System;
2using System.Threading; 2using System.Threading;
3 3
4namespace OpenSim.Framework.Communications 4namespace OpenSim.Framework.Communications
5{ 5{
6 internal class SimpleAsyncResult : IAsyncResult 6 internal class SimpleAsyncResult : IAsyncResult
7 { 7 {
8 private readonly AsyncCallback m_callback; 8 private readonly AsyncCallback m_callback;
9 9
10 /// <summary> 10 /// <summary>
11 /// Is process completed? 11 /// Is process completed?
12 /// </summary> 12 /// </summary>
13 /// <remarks>Should really be boolean, but VolatileRead has no boolean method</remarks> 13 /// <remarks>Should really be boolean, but VolatileRead has no boolean method</remarks>
14 private byte m_completed; 14 private byte m_completed;
15 15
16 /// <summary> 16 /// <summary>
17 /// Did process complete synchroneously? 17 /// Did process complete synchroneously?
18 /// </summary> 18 /// </summary>
19 /// <remarks>I have a hard time imagining a scenario where this is the case, again, same issue about 19 /// <remarks>I have a hard time imagining a scenario where this is the case, again, same issue about
20 /// booleans and VolatileRead as m_completed 20 /// booleans and VolatileRead as m_completed
21 /// </remarks> 21 /// </remarks>
22 private byte m_completedSynchronously; 22 private byte m_completedSynchronously;
23 23
24 private readonly object m_asyncState; 24 private readonly object m_asyncState;
25 private ManualResetEvent m_waitHandle; 25 private ManualResetEvent m_waitHandle;
26 private Exception m_exception; 26 private Exception m_exception;
27 27
28 internal SimpleAsyncResult(AsyncCallback cb, object state) 28 internal SimpleAsyncResult(AsyncCallback cb, object state)
29 { 29 {
30 m_callback = cb; 30 m_callback = cb;
31 m_asyncState = state; 31 m_asyncState = state;
32 m_completed = 0; 32 m_completed = 0;
33 m_completedSynchronously = 1; 33 m_completedSynchronously = 1;
34 } 34 }
35 35
36 #region IAsyncResult Members 36 #region IAsyncResult Members
37 37
38 public object AsyncState 38 public object AsyncState
39 { 39 {
40 get { return m_asyncState; } 40 get { return m_asyncState; }
41 } 41 }
42 42
43 public WaitHandle AsyncWaitHandle 43 public WaitHandle AsyncWaitHandle
44 { 44 {
45 get 45 get
46 { 46 {
47 if (m_waitHandle == null) 47 if (m_waitHandle == null)
48 { 48 {
49 bool done = IsCompleted; 49 bool done = IsCompleted;
50 ManualResetEvent mre = new ManualResetEvent(done); 50 ManualResetEvent mre = new ManualResetEvent(done);
51 if (Interlocked.CompareExchange(ref m_waitHandle, mre, null) != null) 51 if (Interlocked.CompareExchange(ref m_waitHandle, mre, null) != null)
52 { 52 {
53 mre.Close(); 53 mre.Close();
54 } 54 }
55 else 55 else
56 { 56 {
57 if (!done && IsCompleted) 57 if (!done && IsCompleted)
58 { 58 {
59 m_waitHandle.Set(); 59 m_waitHandle.Set();
60 } 60 }
61 } 61 }
62 } 62 }
63 return m_waitHandle; 63 return m_waitHandle;
64 } 64 }
65 } 65 }
66 66
67 67
68 public bool CompletedSynchronously 68 public bool CompletedSynchronously
69 { 69 {
70 get { return Thread.VolatileRead(ref m_completedSynchronously) == 1; } 70 get { return Thread.VolatileRead(ref m_completedSynchronously) == 1; }
71 } 71 }
72 72
73 73
74 public bool IsCompleted 74 public bool IsCompleted
75 { 75 {
76 get { return Thread.VolatileRead(ref m_completed) == 1; } 76 get { return Thread.VolatileRead(ref m_completed) == 1; }
77 } 77 }
78 78
79 #endregion 79 #endregion
80 80
81 #region class Methods 81 #region class Methods
82 82
83 internal void SetAsCompleted(bool completedSynchronously) 83 internal void SetAsCompleted(bool completedSynchronously)
84 { 84 {
85 m_completed = 1; 85 m_completed = 1;
86 if (completedSynchronously) 86 if (completedSynchronously)
87 m_completedSynchronously = 1; 87 m_completedSynchronously = 1;
88 else 88 else
89 m_completedSynchronously = 0; 89 m_completedSynchronously = 0;
90 90
91 SignalCompletion(); 91 SignalCompletion();
92 } 92 }
93 93
94 internal void HandleException(Exception e, bool completedSynchronously) 94 internal void HandleException(Exception e, bool completedSynchronously)
95 { 95 {
96 m_completed = 1; 96 m_completed = 1;
97 if (completedSynchronously) 97 if (completedSynchronously)
98 m_completedSynchronously = 1; 98 m_completedSynchronously = 1;
99 else 99 else
100 m_completedSynchronously = 0; 100 m_completedSynchronously = 0;
101 m_exception = e; 101 m_exception = e;
102 102
103 SignalCompletion(); 103 SignalCompletion();
104 } 104 }
105 105
106 private void SignalCompletion() 106 private void SignalCompletion()
107 { 107 {
108 if (m_waitHandle != null) m_waitHandle.Set(); 108 if (m_waitHandle != null) m_waitHandle.Set();
109 109
110 if (m_callback != null) m_callback(this); 110 if (m_callback != null) m_callback(this);
111 } 111 }
112 112
113 public void EndInvoke() 113 public void EndInvoke()
114 { 114 {
115 // This method assumes that only 1 thread calls EndInvoke 115 // This method assumes that only 1 thread calls EndInvoke
116 if (!IsCompleted) 116 if (!IsCompleted)
117 { 117 {
118 // If the operation isn't done, wait for it 118 // If the operation isn't done, wait for it
119 AsyncWaitHandle.WaitOne(); 119 AsyncWaitHandle.WaitOne();
120 AsyncWaitHandle.Close(); 120 AsyncWaitHandle.Close();
121 m_waitHandle = null; // Allow early GC 121 m_waitHandle = null; // Allow early GC
122 } 122 }
123 123
124 // Operation is done: if an exception occured, throw it 124 // Operation is done: if an exception occured, throw it
125 if (m_exception != null) throw m_exception; 125 if (m_exception != null) throw m_exception;
126 } 126 }
127 127
128 #endregion 128 #endregion
129 } 129 }
130 130
131 internal class AsyncResult<T> : SimpleAsyncResult 131 internal class AsyncResult<T> : SimpleAsyncResult
132 { 132 {
133 private T m_result = default(T); 133 private T m_result = default(T);
134 134
135 public AsyncResult(AsyncCallback asyncCallback, Object state) : 135 public AsyncResult(AsyncCallback asyncCallback, Object state) :
136 base(asyncCallback, state) 136 base(asyncCallback, state)
137 { 137 {
138 } 138 }
139 139
140 public void SetAsCompleted(T result, bool completedSynchronously) 140 public void SetAsCompleted(T result, bool completedSynchronously)
141 { 141 {
142 // Save the asynchronous operation's result 142 // Save the asynchronous operation's result
143 m_result = result; 143 m_result = result;
144 144
145 // Tell the base class that the operation completed 145 // Tell the base class that the operation completed
146 // sucessfully (no exception) 146 // sucessfully (no exception)
147 base.SetAsCompleted(completedSynchronously); 147 base.SetAsCompleted(completedSynchronously);
148 } 148 }
149 149
150 public new T EndInvoke() 150 public new T EndInvoke()
151 { 151 {
152 base.EndInvoke(); 152 base.EndInvoke();
153 return m_result; 153 return m_result;
154 } 154 }
155 } 155 }
156} \ No newline at end of file 156} \ No newline at end of file
generated by cgit v1.1 at 2024-07-01 07:35:58 +0000