aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/ThirdParty/SmartThreadPool/WorkItem.WorkItemResult.cs
blob: 5745c1501c87f6636961e5c3ff8e719403a7834c (plain)
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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;

namespace Amib.Threading.Internal
{
    public partial class WorkItem
    {
        #region WorkItemResult class

        private class WorkItemResult : IWorkItemResult, IInternalWorkItemResult, IInternalWaitableResult
        {
            /// <summary>
            /// A back reference to the work item
            /// </summary>
            private readonly WorkItem _workItem;

            public WorkItemResult(WorkItem workItem)
            {
                _workItem = workItem;
            }

            internal WorkItem GetWorkItem()
            {
                return _workItem;
            }

            #region IWorkItemResult Members

            public bool IsCompleted
            {
                get
                {
                    return _workItem.IsCompleted;
                }
            }

            public bool IsCanceled
            {
                get
                {
                    return _workItem.IsCanceled;
                }
            }

            public object GetResult()
            {
                return _workItem.GetResult(Timeout.Infinite, true, null);
            }

            public object GetResult(int millisecondsTimeout, bool exitContext)
            {
                return _workItem.GetResult(millisecondsTimeout, exitContext, null);
            }

            public object GetResult(TimeSpan timeout, bool exitContext)
            {
                return _workItem.GetResult((int)timeout.TotalMilliseconds, exitContext, null);
            }

            public object GetResult(int millisecondsTimeout, bool exitContext, WaitHandle cancelWaitHandle)
            {
                return _workItem.GetResult(millisecondsTimeout, exitContext, cancelWaitHandle);
            }

            public object GetResult(TimeSpan timeout, bool exitContext, WaitHandle cancelWaitHandle)
            {
                return _workItem.GetResult((int)timeout.TotalMilliseconds, exitContext, cancelWaitHandle);
            }

            public object GetResult(out Exception e)
            {
                return _workItem.GetResult(Timeout.Infinite, true, null, out e);
            }

            public object GetResult(int millisecondsTimeout, bool exitContext, out Exception e)
            {
                return _workItem.GetResult(millisecondsTimeout, exitContext, null, out e);
            }

            public object GetResult(TimeSpan timeout, bool exitContext, out Exception e)
            {
                return _workItem.GetResult((int)timeout.TotalMilliseconds, exitContext, null, out e);
            }

            public object GetResult(int millisecondsTimeout, bool exitContext, WaitHandle cancelWaitHandle, out Exception e)
            {
                return _workItem.GetResult(millisecondsTimeout, exitContext, cancelWaitHandle, out e);
            }

            public object GetResult(TimeSpan timeout, bool exitContext, WaitHandle cancelWaitHandle, out Exception e)
            {
                return _workItem.GetResult((int)timeout.TotalMilliseconds, exitContext, cancelWaitHandle, out e);
            }

            public bool Cancel()
            {
                return Cancel(false);
            }

            public bool Cancel(bool abortExecution)
            {
                return _workItem.Cancel(abortExecution);
            }

            public object State
            {
                get
                {
                    return _workItem._state;
                }
            }

            public WorkItemPriority WorkItemPriority
            {
                get
                {
                    return _workItem._workItemInfo.WorkItemPriority;
                }
            }

            /// <summary>
            /// Return the result, same as GetResult()
            /// </summary>
            public object Result
            {
                get { return GetResult(); }
            }

            /// <summary>
            /// Returns the exception if occured otherwise returns null.
            /// This value is valid only after the work item completed,
            /// before that it is always null.
            /// </summary>
            public object Exception
            {
                get { return _workItem._exception; }
            }

            #endregion

            #region IInternalWorkItemResult Members

            public event WorkItemStateCallback OnWorkItemStarted
            {
                add
                {
                    _workItem.OnWorkItemStarted += value;
                }
                remove
                {
                    _workItem.OnWorkItemStarted -= value;
                }
            }


            public event WorkItemStateCallback OnWorkItemCompleted
            {
                add
                {
                    _workItem.OnWorkItemCompleted += value;
                }
                remove
                {
                    _workItem.OnWorkItemCompleted -= value;
                }
            }

            #endregion

            #region IInternalWorkItemResult Members

            public IWorkItemResult GetWorkItemResult()
            {
                return this;
            }

            public IWorkItemResult<TResult> GetWorkItemResultT<TResult>()
            {
                return new WorkItemResultTWrapper<TResult>(this);
            }

            #endregion
        }

        #endregion

    }
}