annotate Implab/Parallels/AsyncPool.cs @ 72:d67b95eddaf4 v2

promises refactoring
author cin
date Thu, 04 Sep 2014 18:47:12 +0400
parents 790e8a997d30
children 4c0e5ef99986
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1 using Implab.Diagnostics;
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2 using System;
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3 using System.Threading;
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4
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5 namespace Implab.Parallels {
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6 /// <summary>
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7 /// Класс для распаралеливания задач.
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8 /// </summary>
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9 /// <remarks>
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10 /// Используя данный класс и лямда выражения можно распараллелить
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11 /// вычисления, для этого используется концепция обещаний.
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12 /// </remarks>
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13 public static class AsyncPool {
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15 public static IPromise<T> Invoke<T>(Func<T> func) {
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16 var p = new Promise<T>();
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17 var caller = TraceContext.Snapshot();
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19 ThreadPool.QueueUserWorkItem(param => {
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20 TraceContext.Fork(caller);
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21 try {
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22 p.Resolve(func());
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23 } catch(Exception e) {
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24 p.Reject(e);
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25 }
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26 });
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28 return p;
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29 }
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31 public static IPromise<T> InvokeNewThread<T>(Func<T> func) {
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32 var p = new Promise<T>();
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34 var caller = TraceContext.Snapshot();
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36 var worker = new Thread(() => {
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37 TraceContext.Fork(caller);
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38 try {
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39 p.Resolve(func());
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40 } catch (Exception e) {
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41 p.Reject(e);
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42 }
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43 });
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44 worker.IsBackground = true;
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45 worker.Start();
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46
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47 return p;
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48 }
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51 public static IPromise InvokeNewThread(Action func) {
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52 var p = new Promise<object>();
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54 var caller = TraceContext.Snapshot();
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55
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56 var worker = new Thread(() => {
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57 TraceContext.Fork(caller);
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58 try {
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59 func();
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60 p.Resolve();
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61 } catch (Exception e) {
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62 p.Reject(e);
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63 }
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64 });
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65 worker.IsBackground = true;
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66 worker.Start();
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67
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68 return p;
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69 }
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70 }
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71 }