blob: 946c42d2e8eb4cd75cf6c714437c0d30dd60f71e (
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
|
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Tasks;
using System;
using System.Collections.Generic;
using System.Linq;
namespace MediaBrowser.Common.ScheduledTasks
{
/// <summary>
/// Class TaskManager
/// </summary>
internal class TaskManager : ITaskManager
{
/// <summary>
/// Gets the list of Scheduled Tasks
/// </summary>
/// <value>The scheduled tasks.</value>
public IScheduledTask[] ScheduledTasks { get; private set; }
/// <summary>
/// The _task queue
/// </summary>
private readonly List<Type> _taskQueue = new List<Type>();
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
/// <summary>
/// Initializes a new instance of the <see cref="TaskManager" /> class.
/// </summary>
/// <param name="logger">The logger.</param>
public TaskManager(ILogger logger)
{
if (logger == null)
{
throw new ArgumentException("logger");
}
_logger = logger;
ScheduledTasks = new IScheduledTask[] {};
}
/// <summary>
/// Cancels if running and queue.
/// </summary>
/// <typeparam name="T"></typeparam>
public void CancelIfRunningAndQueue<T>()
where T : IScheduledTask
{
ScheduledTasks.OfType<T>().First().CancelIfRunning();
QueueScheduledTask<T>();
}
/// <summary>
/// Queues the scheduled task.
/// </summary>
/// <typeparam name="T"></typeparam>
public void QueueScheduledTask<T>()
where T : IScheduledTask
{
var scheduledTask = ScheduledTasks.OfType<T>().First();
QueueScheduledTask(scheduledTask);
}
/// <summary>
/// Queues the scheduled task.
/// </summary>
/// <param name="task">The task.</param>
public void QueueScheduledTask(IScheduledTask task)
{
var type = task.GetType();
var scheduledTask = ScheduledTasks.First(t => t.GetType() == type);
lock (_taskQueue)
{
// If it's idle just execute immediately
if (scheduledTask.State == TaskState.Idle)
{
scheduledTask.Execute();
return;
}
if (!_taskQueue.Contains(type))
{
_logger.Info("Queueing task {0}", type.Name);
_taskQueue.Add(type);
}
else
{
_logger.Info("Task already queued: {0}", type.Name);
}
}
}
/// <summary>
/// Called when [task completed].
/// </summary>
/// <param name="task">The task.</param>
public void OnTaskCompleted(IScheduledTask task)
{
// Execute queued tasks
lock (_taskQueue)
{
var copy = _taskQueue.ToList();
foreach (var type in copy)
{
var scheduledTask = ScheduledTasks.First(t => t.GetType() == type);
if (scheduledTask.State == TaskState.Idle)
{
scheduledTask.Execute();
_taskQueue.Remove(type);
}
}
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool dispose)
{
foreach (var task in ScheduledTasks)
{
task.Dispose();
}
}
/// <summary>
/// Adds the tasks.
/// </summary>
/// <param name="tasks">The tasks.</param>
public void AddTasks(IEnumerable<IScheduledTask> tasks)
{
var myTasks = ScheduledTasks.ToList();
myTasks.AddRange(tasks);
ScheduledTasks = myTasks.ToArray();
}
}
}
|
