1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
//
// System.Data.SqlClient.SqlAsyncResult.cs
//
// Author:
// T Sureshkumar <tsureshkumar@novell.com>
// Ankit Jain <radical@corewars.org>
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System;
using System.Threading;
namespace System.Data.SqlClient
{
internal class SqlAsyncResult : IAsyncResult
{
private SqlAsyncState _sqlState;
private WaitHandle _waitHandle;
private bool _completed = false;
private bool _completedSyncly = false;
private bool _ended = false;
private AsyncCallback _userCallback = null;
private object _retValue;
private string _endMethod;
private IAsyncResult _internal;
public SqlAsyncResult (AsyncCallback userCallback, SqlAsyncState sqlState)
{
_sqlState = sqlState;
_userCallback = userCallback;
_waitHandle = new ManualResetEvent (false);
}
public SqlAsyncResult (AsyncCallback userCallback, object state)
{
_sqlState = new SqlAsyncState (state);
_userCallback = userCallback;
_waitHandle = new ManualResetEvent (false);
}
public object AsyncState
{
get { return _sqlState.UserState; }
}
internal SqlAsyncState SqlAsyncState
{
get { return _sqlState; }
}
public WaitHandle AsyncWaitHandle
{
get { return _waitHandle; }
}
public bool IsCompleted
{
get { return _completed; }
}
public bool CompletedSynchronously
{
get { return _completedSyncly; }
}
internal object ReturnValue
{
get { return _retValue; }
set { _retValue = value; }
}
public string EndMethod
{
get { return _endMethod; }
set { _endMethod = value; }
}
public bool Ended
{
get { return _ended; }
set { _ended = value; }
}
internal IAsyncResult InternalResult
{
get { return _internal; }
set { _internal = value; }
}
public AsyncCallback BubbleCallback
{
get { return new AsyncCallback (Bubbleback); }
}
internal void MarkComplete ()
{
_completed = true;
((ManualResetEvent)_waitHandle).Set ();
if (_userCallback != null)
_userCallback (this);
}
public void Bubbleback (IAsyncResult ar)
{
this.MarkComplete ();
}
}
}
#endif // NET_2_0
|
