/
CancellationTokenRegistration.cs
92 lines (80 loc) · 2.99 KB
/
CancellationTokenRegistration.cs
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
//
// CancellationTokenRegistration.cs
//
// Author:
// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
// Duarte Nunes <duarte.m.nunes@gmail.com>
//
// Copyright (c) 2009 Jérémie "Garuma" Laval
// Copyright (c) 2011 Duarte Nunes
//
// 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_4_0 || MOBILE
#pragma warning disable 420
namespace System.Threading
{
public struct CancellationTokenRegistration : IDisposable,
IEquatable<CancellationTokenRegistration>
{
private readonly CbParker cbparker;
private readonly CancellationTokenSource cts;
internal CancellationTokenRegistration (CbParker cbparker,
CancellationTokenSource cts)
{
this.cts = cts;
this.cbparker = cbparker;
}
public void Dispose ()
{
if (cbparker != null) {
if (cbparker.TryCancel ()) {
cts.DeregisterParker (cbparker);
} else {
cts.ThrowIfDisposed ();
}
}
}
public static bool operator == (CancellationTokenRegistration left,
CancellationTokenRegistration right)
{
return left.Equals (right);
}
public static bool operator != (CancellationTokenRegistration left,
CancellationTokenRegistration right)
{
return !left.Equals (right);
}
public override bool Equals (object other)
{
return other is CancellationTokenRegistration &&
Equals ((CancellationTokenRegistration) other);
}
public bool Equals (CancellationTokenRegistration other)
{
return cts == other.cts && cbparker == other.cbparker;
}
public override int GetHashCode ()
{
return cts != null
? cts.GetHashCode () ^ cbparker.GetHashCode ()
: CancellationTokenSource.CTS_NOT_CANCELABLE.GetHashCode ();
}
}
}
#endif