corrade-vassal – Diff between revs 14 and 16

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1 /////////////////////////////////////////////////////////////////////////// 1 ///////////////////////////////////////////////////////////////////////////
2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 // 2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 //
3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // 3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
4 // rights of fair usage, the disclaimer and warranty conditions. // 4 // rights of fair usage, the disclaimer and warranty conditions. //
5 /////////////////////////////////////////////////////////////////////////// 5 ///////////////////////////////////////////////////////////////////////////
6   6  
7 using System; 7 using System;
8 using System.Collections.Generic; 8 using System.Collections.Generic;
9 using System.Diagnostics; 9 using System.Diagnostics;
10 using System.Linq; 10 using System.Linq;
11 using System.Threading; 11 using System.Threading;
12 using System.Threading.Tasks; 12 using System.Threading.Tasks;
13 using System.Xml.Serialization; 13 using System.Xml.Serialization;
14   14  
15 namespace wasSharp 15 namespace wasSharp
16 { 16 {
17 public class Time 17 public static class Time
18 { 18 {
19 public delegate void TimerCallback(object state); 19 public delegate void TimerCallback(object state);
20   20  
21 /// <summary> 21 /// <summary>
22 /// Convert an Unix timestamp to a DateTime structure. 22 /// Convert an Unix timestamp to a DateTime structure.
23 /// </summary> 23 /// </summary>
24 /// <param name="unixTimestamp">the Unix timestamp to convert</param> 24 /// <param name="unixTimestamp">the Unix timestamp to convert</param>
25 /// <returns>the DateTime structure</returns> 25 /// <returns>the DateTime structure</returns>
26 /// <remarks>the function assumes UTC time</remarks> 26 /// <remarks>the function assumes UTC time</remarks>
27 public static DateTime UnixTimestampToDateTime(uint unixTimestamp) 27 public static DateTime UnixTimestampToDateTime(uint unixTimestamp)
28 { 28 {
29 return new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).AddSeconds(unixTimestamp).ToUniversalTime(); 29 return new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc).AddSeconds(unixTimestamp).ToUniversalTime();
30 } 30 }
31   31  
32 /// <summary> 32 /// <summary>
33 /// Convert a DateTime structure to a Unix timestamp. 33 /// Convert a DateTime structure to a Unix timestamp.
34 /// </summary> 34 /// </summary>
35 /// <param name="dateTime">the DateTime structure to convert</param> 35 /// <param name="dateTime">the DateTime structure to convert</param>
36 /// <returns>the Unix timestamp</returns> 36 /// <returns>the Unix timestamp</returns>
37 /// <remarks>the function assumes UTC time</remarks> 37 /// <remarks>the function assumes UTC time</remarks>
38 public static uint DateTimeToUnixTimestamp(DateTime dateTime) 38 public static uint DateTimeToUnixTimestamp(DateTime dateTime)
39 { 39 {
40 return (uint) (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds; 40 return (uint) (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds;
41 } 41 }
42   42  
43 public sealed class Timer : IDisposable 43 public sealed class Timer : IDisposable
44 { 44 {
45 private static readonly Task CompletedTask = Task.FromResult(false); 45 private static readonly Task CompletedTask = Task.FromResult(false);
46 private readonly TimerCallback Callback; 46 private readonly TimerCallback Callback;
47 private readonly object State; 47 private readonly object State;
48 private Task Delay; 48 private Task Delay;
49 private bool Disposed; 49 private bool Disposed;
50 private int Period; 50 private int Period;
51 private CancellationTokenSource TokenSource; 51 private CancellationTokenSource TokenSource;
52   52  
53 public Timer(TimerCallback callback, object state, int dueTime, int period) 53 public Timer(TimerCallback callback, object state, int dueTime, int period)
54 { 54 {
55 Callback = callback; 55 Callback = callback;
56 State = state; 56 State = state;
57 Period = period; 57 Period = period;
58 Reset(dueTime); 58 Reset(dueTime);
59 } 59 }
60   60  
61 public Timer(TimerCallback callback, object state, TimeSpan dueTime, TimeSpan period) 61 public Timer(TimerCallback callback, object state, TimeSpan dueTime, TimeSpan period)
62 : this(callback, state, (int) dueTime.TotalMilliseconds, (int) period.TotalMilliseconds) 62 : this(callback, state, (int) dueTime.TotalMilliseconds, (int) period.TotalMilliseconds)
63 { 63 {
64 } 64 }
65   65  
66 public void Dispose() 66 public void Dispose()
67 { 67 {
68 Dispose(true); 68 Dispose(true);
69 GC.SuppressFinalize(this); 69 GC.SuppressFinalize(this);
70 } 70 }
71   71  
72 ~Timer() 72 ~Timer()
73 { 73 {
74 Dispose(false); 74 Dispose(false);
75 } 75 }
76   76  
77 private void Dispose(bool cleanUpManagedObjects) 77 private void Dispose(bool cleanUpManagedObjects)
78 { 78 {
79 if (cleanUpManagedObjects) 79 if (cleanUpManagedObjects)
80 Cancel(); 80 Cancel();
81 Disposed = true; 81 Disposed = true;
82 } 82 }
83   83  
84 public void Change(int dueTime, int period) 84 public void Change(int dueTime, int period)
85 { 85 {
86 Period = period; 86 Period = period;
87 Reset(dueTime); 87 Reset(dueTime);
88 } 88 }
89   89  
90 public void Change(TimeSpan dueTime, TimeSpan period) 90 public void Change(TimeSpan dueTime, TimeSpan period)
91 { 91 {
92 Change((int) dueTime.TotalMilliseconds, (int) period.TotalMilliseconds); 92 Change((int) dueTime.TotalMilliseconds, (int) period.TotalMilliseconds);
93 } 93 }
94   94  
95 private void Reset(int due) 95 private void Reset(int due)
96 { 96 {
97 Cancel(); 97 Cancel();
98 if (due >= 0) 98 if (due >= 0)
99 { 99 {
100 TokenSource = new CancellationTokenSource(); 100 TokenSource = new CancellationTokenSource();
101 Action tick = null; 101 Action tick = null;
102 tick = () => 102 tick = () =>
103 { 103 {
104 Task.Run(() => Callback(State)); 104 Task.Run(() => Callback(State));
105 if (Disposed || Period < 0) return; 105 if (Disposed || Period < 0) return;
106 Delay = Period > 0 ? Task.Delay(Period, TokenSource.Token) : CompletedTask; 106 Delay = Period > 0 ? Task.Delay(Period, TokenSource.Token) : CompletedTask;
107 Delay.ContinueWith(t => tick(), TokenSource.Token); 107 Delay.ContinueWith(t => tick(), TokenSource.Token);
108 }; 108 };
109 Delay = due > 0 ? Task.Delay(due, TokenSource.Token) : CompletedTask; 109 Delay = due > 0 ? Task.Delay(due, TokenSource.Token) : CompletedTask;
110 Delay.ContinueWith(t => tick(), TokenSource.Token); 110 Delay.ContinueWith(t => tick(), TokenSource.Token);
111 } 111 }
112 } 112 }
113   113  
114 private void Cancel() 114 private void Cancel()
115 { 115 {
116 if (TokenSource != null) 116 if (TokenSource != null)
117 { 117 {
118 TokenSource.Cancel(); 118 TokenSource.Cancel();
119 TokenSource.Dispose(); 119 TokenSource.Dispose();
120 TokenSource = null; 120 TokenSource = null;
121 } 121 }
122 } 122 }
123 } 123 }
124   124  
125 /////////////////////////////////////////////////////////////////////////// 125 ///////////////////////////////////////////////////////////////////////////
126 // Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 // 126 // Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 //
127 /////////////////////////////////////////////////////////////////////////// 127 ///////////////////////////////////////////////////////////////////////////
128 /// <summary> 128 /// <summary>
129 /// Given a number of allowed events per seconds, this class allows you 129 /// Given a number of allowed events per seconds, this class allows you
130 /// to determine via the IsSafe property whether it is safe to trigger 130 /// to determine via the IsSafe property whether it is safe to trigger
131 /// another lined-up event. This is mostly used to check that throttles 131 /// another lined-up event. This is mostly used to check that throttles
132 /// are being respected. 132 /// are being respected.
133 /// </summary> 133 /// </summary>
134 public class TimedThrottle : IDisposable 134 public sealed class TimedThrottle : IDisposable
135 { 135 {
136 private readonly uint EventsAllowed; 136 private readonly uint EventsAllowed;
137 private readonly object LockObject = new object(); 137 private readonly object LockObject = new object();
138 private Timer timer; 138 private Timer timer;
139 private uint TriggeredEvents; 139 private uint TriggeredEvents;
140   140  
141 public TimedThrottle(uint events, uint seconds) 141 public TimedThrottle(uint events, uint seconds)
142 { 142 {
143 EventsAllowed = events; 143 EventsAllowed = events;
144 if (timer == null) 144 if (timer == null)
145 { 145 {
146 timer = new Timer(o => 146 timer = new Timer(o =>
147 { 147 {
148 lock (LockObject) 148 lock (LockObject)
149 { 149 {
150 TriggeredEvents = 0; 150 TriggeredEvents = 0;
151 } 151 }
152 }, null, (int) seconds, (int) seconds); 152 }, null, (int) seconds, (int) seconds);
153 } 153 }
154 } 154 }
155   155  
156 public bool IsSafe 156 public bool IsSafe
157 { 157 {
158 get 158 get
159 { 159 {
160 lock (LockObject) 160 lock (LockObject)
161 { 161 {
162 return ++TriggeredEvents <= EventsAllowed; 162 return ++TriggeredEvents <= EventsAllowed;
163 } 163 }
164 } 164 }
165 } 165 }
166   166  
167 public void Dispose() 167 public void Dispose()
168 { 168 {
169 Dispose(true); 169 Dispose(true);
170 GC.SuppressFinalize(this); 170 GC.SuppressFinalize(this);
171 } 171 }
-   172  
-   173 ~TimedThrottle()
-   174 {
-   175 Dispose(false);
-   176 }
172   177  
173 protected virtual void Dispose(bool dispose) 178 private void Dispose(bool dispose)
174 { 179 {
175 if (timer != null) 180 if (timer != null)
176 { 181 {
177 timer.Dispose(); 182 timer.Dispose();
178 timer = null; 183 timer = null;
179 } 184 }
180 } 185 }
181 } 186 }
182   187  
183 /////////////////////////////////////////////////////////////////////////// 188 ///////////////////////////////////////////////////////////////////////////
184 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 // 189 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 //
185 /////////////////////////////////////////////////////////////////////////// 190 ///////////////////////////////////////////////////////////////////////////
186 /// <summary> 191 /// <summary>
187 /// An alarm class similar to the UNIX alarm with the added benefit 192 /// An alarm class similar to the UNIX alarm with the added benefit
188 /// of a decaying timer that tracks the time between rescheduling. 193 /// of a decaying timer that tracks the time between rescheduling.
189 /// </summary> 194 /// </summary>
190 /// <remarks> 195 /// <remarks>
191 /// (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 196 /// (C) Wizardry and Steamworks 2013 - License: GNU GPLv3
192 /// </remarks> 197 /// </remarks>
193 public class DecayingAlarm : IDisposable 198 public sealed class DecayingAlarm : IDisposable
194 { 199 {
195 [Flags] 200 [Flags]
196 public enum DECAY_TYPE 201 public enum DECAY_TYPE
197 { 202 {
198 [XmlEnum(Name = "none")] NONE = 0, 203 [Reflection.NameAttribute("none")] [XmlEnum(Name = "none")] NONE = 0,
199 [XmlEnum(Name = "arithmetic")] ARITHMETIC = 1, 204 [Reflection.NameAttribute("arithmetic")] [XmlEnum(Name = "arithmetic")] ARITHMETIC = 1,
200 [XmlEnum(Name = "geometric")] GEOMETRIC = 2, 205 [Reflection.NameAttribute("geometric")] [XmlEnum(Name = "geometric")] GEOMETRIC = 2,
201 [XmlEnum(Name = "harmonic")] HARMONIC = 4, 206 [Reflection.NameAttribute("harmonic")] [XmlEnum(Name = "harmonic")] HARMONIC = 4,
202 [XmlEnum(Name = "weighted")] WEIGHTED = 5 207 [Reflection.NameAttribute("weighted")] [XmlEnum(Name = "weighted")] WEIGHTED = 5
203 } 208 }
204   209  
205 private readonly DECAY_TYPE decay = DECAY_TYPE.NONE; 210 private readonly DECAY_TYPE decay = DECAY_TYPE.NONE;
206 private readonly Stopwatch elapsed = new Stopwatch(); 211 private readonly Stopwatch elapsed = new Stopwatch();
207 private readonly object LockObject = new object(); 212 private readonly object LockObject = new object();
208 private readonly HashSet<double> times = new HashSet<double>(); 213 private readonly HashSet<double> times = new HashSet<double>();
209 private Timer alarm; 214 private Timer alarm;
210   215  
211 /// <summary> 216 /// <summary>
212 /// The default constructor using no decay. 217 /// The default constructor using no decay.
213 /// </summary> 218 /// </summary>
214 public DecayingAlarm() 219 public DecayingAlarm()
215 { 220 {
216 Signal = new ManualResetEvent(false); 221 Signal = new ManualResetEvent(false);
217 } 222 }
218   223  
219 /// <summary> 224 /// <summary>
220 /// The constructor for the DecayingAlarm class taking as parameter a decay type. 225 /// The constructor for the DecayingAlarm class taking as parameter a decay type.
221 /// </summary> 226 /// </summary>
222 /// <param name="decay">the type of decay: arithmetic, geometric, harmonic, heronian or quadratic</param> 227 /// <param name="decay">the type of decay: arithmetic, geometric, harmonic, heronian or quadratic</param>
223 public DecayingAlarm(DECAY_TYPE decay) 228 public DecayingAlarm(DECAY_TYPE decay)
224 { 229 {
225 Signal = new ManualResetEvent(false); 230 Signal = new ManualResetEvent(false);
226 this.decay = decay; 231 this.decay = decay;
227 } 232 }
228   233  
229 public ManualResetEvent Signal { get; set; } 234 public ManualResetEvent Signal { get; set; }
230   235  
231 public void Dispose() 236 public void Dispose()
232 { 237 {
233 Dispose(true); 238 Dispose(true);
234 GC.SuppressFinalize(this); 239 GC.SuppressFinalize(this);
235 } 240 }
-   241  
-   242 ~DecayingAlarm()
-   243 {
-   244 Dispose(false);
-   245 }
236   246  
237 public void Alarm(double deadline) 247 public void Alarm(double deadline)
238 { 248 {
239 lock (LockObject) 249 lock (LockObject)
240 { 250 {
241 switch (alarm == null) 251 switch (alarm == null)
242 { 252 {
243 case true: 253 case true:
244 elapsed.Start(); 254 elapsed.Start();
245 alarm = new Timer(o => 255 alarm = new Timer(o =>
246 { 256 {
247 lock (LockObject) 257 lock (LockObject)
248 { 258 {
249 Signal.Set(); 259 Signal.Set();
250 elapsed.Stop(); 260 elapsed.Stop();
251 times.Clear(); 261 times.Clear();
252 alarm.Dispose(); 262 alarm.Dispose();
253 alarm = null; 263 alarm = null;
254 } 264 }
255 }, null, (int) deadline, 0); 265 }, null, (int) deadline, 0);
256 return; 266 return;
257 case false: 267 case false:
258 elapsed.Stop(); 268 elapsed.Stop();
259 times.Add(elapsed.ElapsedMilliseconds); 269 times.Add(elapsed.ElapsedMilliseconds);
260 switch (decay) 270 switch (decay)
261 { 271 {
262 case DECAY_TYPE.ARITHMETIC: 272 case DECAY_TYPE.ARITHMETIC:
263 alarm?.Change( 273 alarm?.Change(
264 (int) ((deadline + times.Aggregate((a, b) => b + a))/(1f + times.Count)), 0); 274 (int) ((deadline + times.Aggregate((a, b) => b + a))/(1f + times.Count)), 0);
265 break; 275 break;
266 case DECAY_TYPE.GEOMETRIC: 276 case DECAY_TYPE.GEOMETRIC:
267 alarm?.Change((int) (Math.Pow(deadline*times.Aggregate((a, b) => b*a), 277 alarm?.Change((int) Math.Pow(deadline*times.Aggregate((a, b) => b*a),
268 1f/(1f + times.Count))), 0); 278 1f/(1f + times.Count)), 0);
269 break; 279 break;
270 case DECAY_TYPE.HARMONIC: 280 case DECAY_TYPE.HARMONIC:
271 alarm?.Change((int) ((1f + times.Count)/ 281 alarm?.Change((int) ((1f + times.Count)/
272 (1f/deadline + times.Aggregate((a, b) => 1f/b + 1f/a))), 0); 282 (1f/deadline + times.Aggregate((a, b) => 1f/b + 1f/a))), 0);
273 break; 283 break;
274 case DECAY_TYPE.WEIGHTED: 284 case DECAY_TYPE.WEIGHTED:
275 HashSet<double> d = new HashSet<double>(times) {deadline}; 285 var d = new HashSet<double>(times) {deadline};
276 double total = d.Aggregate((a, b) => b + a); 286 var total = d.Aggregate((a, b) => b + a);
277 alarm?.Change( 287 alarm?.Change(
278 (int) (d.Aggregate((a, b) => Math.Pow(a, 2)/total + Math.Pow(b, 2)/total)), 0); 288 (int) d.Aggregate((a, b) => Math.Pow(a, 2)/total + Math.Pow(b, 2)/total), 0);
279 break; 289 break;
280 default: 290 default:
281 alarm?.Change((int) deadline, 0); 291 alarm?.Change((int) deadline, 0);
282 break; 292 break;
283 } 293 }
284 elapsed.Reset(); 294 elapsed.Reset();
285 elapsed.Start(); 295 elapsed.Start();
286 break; 296 break;
287 } 297 }
288 } 298 }
289 } 299 }
290   300  
291 protected virtual void Dispose(bool dispose) 301 private void Dispose(bool dispose)
292 { 302 {
293 if (alarm != null) 303 if (alarm != null)
294 { 304 {
295 alarm.Dispose(); 305 alarm.Dispose();
296 alarm = null; 306 alarm = null;
297 } 307 }
298 } 308 }
-   309  
-   310 public DecayingAlarm Clone()
-   311 {
-   312 return new DecayingAlarm(decay);
-   313 }
299 } 314 }
300 } 315 }
301 } 316 }
302   317  
303
Generated by GNU Enscript 1.6.5.90.
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Generated by GNU Enscript 1.6.5.90.
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305   320  
306   321