annotate Implab/Parallels/AsyncPool.cs @ 134:04d4c92d0f28 v2

Improved logging
author cin
date Wed, 11 Feb 2015 02:12:15 +0300
parents a336cb13c6a9
children 706fccb85524
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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 using System.Linq;
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5
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6 namespace Implab.Parallels {
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7 /// <summary>
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8 /// Класс для распаралеливания задач.
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9 /// </summary>
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10 /// <remarks>
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11 /// Используя данный класс и лямда выражения можно распараллелить
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12 /// вычисления, для этого используется концепция обещаний.
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13 /// </remarks>
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14 public static class AsyncPool {
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15
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16 public static IPromise<T> Invoke<T>(Func<T> func) {
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17 var p = new Promise<T>();
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18 var caller = TraceContext.Instance.CurrentOperation;
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19
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20 ThreadPool.QueueUserWorkItem(param => {
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21 TraceContext.Instance.EnterLogicalOperation(caller,false);
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22 try {
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23 p.Resolve(func());
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24 } catch(Exception e) {
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25 p.Reject(e);
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26 } finally {
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27 TraceContext.Instance.Leave();
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28 }
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29 });
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31 return p;
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32 }
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33
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34 public static IPromise<T> RunThread<T>(Func<T> func) {
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35 var p = new Promise<T>();
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37 var caller = TraceContext.Instance.CurrentOperation;
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38
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39 var worker = new Thread(() => {
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40 TraceContext.Instance.EnterLogicalOperation(caller,false);
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41 try {
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42 p.Resolve(func());
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43 } catch (Exception e) {
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44 p.Reject(e);
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45 } finally {
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46 TraceContext.Instance.Leave();
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47 }
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48 });
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49 worker.IsBackground = true;
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50 worker.Start();
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52 return p;
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53 }
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55
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56 public static IPromise RunThread(Action func) {
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57 var p = new Promise();
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58
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59 var caller = TraceContext.Instance.CurrentOperation;
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61 var worker = new Thread(() => {
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62 TraceContext.Instance.EnterLogicalOperation(caller,false);
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63 try {
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64 func();
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65 p.Resolve();
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66 } catch (Exception e) {
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67 p.Reject(e);
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68 } finally {
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69 TraceContext.Instance.Leave();
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70 }
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71 });
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72 worker.IsBackground = true;
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73 worker.Start();
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75 return p;
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76 }
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77
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78 public static IPromise[] RunThread(params Action[] func) {
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79 return func.Select(f => RunThread(f)).ToArray();
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80 }
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81
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82 public static IPromise<T>[] RunThread<T>(params Func<T>[] func) {
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83 return func.Select(f => RunThread(f)).ToArray();
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84 }
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85 }
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86 }