@@ -27,12 +27,12 namespace Implab { | |||
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27 | 27 | /// </summary> |
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28 | 28 | bool IsCancelled { get; } |
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29 | 29 | |
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30 |
IPromise Then(Action success, |
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31 |
IPromise Then(Action success, |
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30 | IPromise Then(Action success, Action<Exception> error, Action cancel); | |
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31 | IPromise Then(Action success, Action<Exception> error); | |
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32 | 32 | IPromise Then(Action success); |
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33 | 33 | |
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34 |
IPromise Chain(Func<IPromise> chained, |
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35 |
IPromise Chain(Func<IPromise> chained, |
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34 | IPromise Chain(Func<IPromise> chained, Func<Exception, IPromise> error, Action cancel); | |
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35 | IPromise Chain(Func<IPromise> chained, Func<Exception, IPromise> error); | |
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36 | 36 | IPromise Chain(Func<IPromise> chained); |
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37 | 37 | |
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38 | 38 | /// <summary> |
@@ -41,13 +41,13 namespace Implab { | |||
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41 | 41 | /// <param name="success">Success.</param> |
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42 | 42 | /// <param name="error">Error.</param> |
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43 | 43 | /// <param name="cancel">Cancel.</param> |
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44 |
void Last(Action success, |
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45 |
void Last(Action success, |
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44 | void Last(Action success, Action<Exception> error, Action cancel); | |
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45 | void Last(Action success, Action<Exception> error); | |
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46 | 46 | void Last(Action success); |
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47 | 47 | |
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48 |
IPromise Error( |
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48 | IPromise Error(Action<Exception> error); | |
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49 | 49 | /// <summary> |
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50 |
/// Обрабатывает либо ошибку, либо результат |
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50 | /// Обрабатывает либо ошибку, либо результат, либо отмену. | |
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51 | 51 | /// </summary> |
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52 | 52 | /// <param name="handler">Обработчик.</param> |
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53 | 53 | /// <remarks>После обработке ошибки, она передается дальше.</remarks> |
@@ -58,9 +58,9 namespace Implab { | |||
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58 | 58 | /// <remarks>После обработке ошибки, она передается дальше.</remarks> |
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59 | 59 | IPromise Anyway(Action handler); |
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60 | 60 | /// <summary> |
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61 |
/// Обработчик для регистрации отмены обещания |
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61 | /// Обработчик для регистрации отмены обещания. | |
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62 | 62 | /// </summary> |
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63 | /// <returns>Новое обещание, связанное с текущим.</returns> | |
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63 | /// <returns>Новое обещание, связанное с текущим, выполнится после указанного обработчика.</returns> | |
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64 | 64 | /// <param name="handler">Обработчик события.</param> |
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65 | 65 | /// <remarks>Если обработчик вызывает исключение, то оно передается обработчику ошибки, результат работы |
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66 | 66 | /// которого будет передан связанному обещанию</remarks> |
@@ -7,31 +7,31 namespace Implab { | |||
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7 | 7 | |
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8 | 8 | new T Join(int timeout); |
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9 | 9 | |
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10 |
void Last( |
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10 | void Last(Action<T> success, Action<Exception> error, Action cancel); | |
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11 | 11 | |
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12 |
void Last( |
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12 | void Last(Action<T> success, Action<Exception> error); | |
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13 | 13 | |
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14 |
void Last( |
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14 | void Last(Action<T> success); | |
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15 | 15 | |
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16 |
IPromise<T> Then( |
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16 | IPromise<T> Then(Action<T> success, Func<Exception,T> error, Action cancel); | |
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17 | 17 | |
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18 |
IPromise<T> Then( |
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18 | IPromise<T> Then(Action<T> success, Func<Exception,T> error); | |
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19 | 19 | |
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20 |
IPromise<T> Then( |
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20 | IPromise<T> Then(Action<T> success); | |
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21 | 21 | |
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22 |
IPromise<T2> Then<T2>( |
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22 | IPromise<T2> Then<T2>(Func<T, T2> mapper, Func<Exception,T2> error, Action cancel); | |
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23 | 23 | |
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24 |
IPromise<T2> Then<T2>( |
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24 | IPromise<T2> Then<T2>(Func<T, T2> mapper, Func<Exception,T2> error); | |
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25 | 25 | |
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26 |
IPromise<T2> Then<T2>( |
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26 | IPromise<T2> Then<T2>(Func<T, T2> mapper); | |
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27 | 27 | |
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28 |
IPromise<T2> Chain<T2>( |
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28 | IPromise<T2> Chain<T2>(Func<T, IPromise<T2>> chained, Func<Exception,IPromise<T2>> error, Action cancel); | |
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29 | 29 | |
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30 |
IPromise<T2> Chain<T2>( |
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30 | IPromise<T2> Chain<T2>(Func<T, IPromise<T2>> chained, Func<Exception,IPromise<T2>> error); | |
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31 | 31 | |
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32 |
IPromise<T2> Chain<T2>( |
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32 | IPromise<T2> Chain<T2>(Func<T, IPromise<T2>> chained); | |
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33 | 33 | |
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34 |
IPromise<T> Error( |
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34 | IPromise<T> Error(Func<Exception,T> error); | |
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35 | 35 | |
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36 | 36 | new IPromise<T> Cancelled(Action handler); |
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37 | 37 |
@@ -1,9 +1,6 | |||
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1 | 1 | using Implab.Diagnostics; |
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2 | 2 | using System; |
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3 | using System.Collections.Generic; | |
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4 | 3 | using System.Diagnostics; |
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5 | using System.Linq; | |
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6 | using System.Text; | |
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7 | 4 | using System.Threading; |
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8 | 5 | |
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9 | 6 | namespace Implab.Parallels { |
@@ -146,13 +143,13 namespace Implab.Parallels { | |||
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146 | 143 | return iter.Promise; |
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147 | 144 | } |
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148 | 145 | |
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149 |
public static IPromise<TDst[]> ChainedMap<TSrc, TDst>(this TSrc[] source, |
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146 | public static IPromise<TDst[]> ChainedMap<TSrc, TDst>(this TSrc[] source, Func<TSrc, IPromise<TDst>> transform, int threads) { | |
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150 | 147 | if (source == null) |
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151 | 148 | throw new ArgumentNullException("source"); |
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152 | 149 | if (transform == null) |
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153 | 150 | throw new ArgumentNullException("transform"); |
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154 | 151 | if (threads <= 0) |
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155 | throw new ArgumentOutOfRangeException("Threads number must be greater then zero"); | |
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152 | throw new ArgumentOutOfRangeException("threads","Threads number must be greater then zero"); | |
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156 | 153 | |
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157 | 154 | if (source.Length == 0) |
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158 | 155 | return Promise<TDst[]>.ResultToPromise(new TDst[0]); |
@@ -1,17 +1,11 | |||
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1 | 1 | using System; |
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2 | 2 | using System.Collections.Generic; |
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3 | 3 | using System.Reflection; |
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4 | using System.Diagnostics; | |
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5 | 4 | using System.Threading; |
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6 | 5 | using Implab.Parallels; |
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7 | 6 | |
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8 | 7 | namespace Implab { |
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9 | 8 | |
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10 | public delegate void ErrorHandler(Exception e); | |
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11 | public delegate T ErrorHandler<out T>(Exception e); | |
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12 | public delegate void ResultHandler<in T>(T result); | |
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13 | public delegate TNew ResultMapper<in TSrc,out TNew>(TSrc result); | |
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14 | ||
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15 | 9 | /// <summary> |
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16 | 10 | /// Класс для асинхронного получения результатов. Так называемое "обещание". |
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17 | 11 | /// </summary> |
@@ -49,8 +43,8 namespace Implab { | |||
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49 | 43 | public class Promise<T> : IPromise<T> { |
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50 | 44 | |
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51 | 45 | protected struct HandlerDescriptor { |
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52 |
public |
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53 |
public |
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46 | public Action<T> resultHandler; | |
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47 | public Func<Exception,T> errorHandler; | |
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54 | 48 | public Action cancellHandler; |
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55 | 49 | public Promise<T> medium; |
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56 | 50 | |
@@ -104,9 +98,7 namespace Implab { | |||
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104 | 98 | const int REJECTED_STATE = 3; |
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105 | 99 | const int CANCELLED_STATE = 4; |
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106 | 100 | |
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107 | readonly bool m_cancellable; | |
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108 | ||
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109 | int m_childrenCount = 0; | |
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101 | int m_childrenCount; | |
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110 | 102 | int m_state; |
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111 | 103 | T m_result; |
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112 | 104 | Exception m_error; |
@@ -114,11 +106,9 namespace Implab { | |||
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114 | 106 | readonly MTQueue<HandlerDescriptor> m_handlers = new MTQueue<HandlerDescriptor>(); |
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115 | 107 | |
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116 | 108 | public Promise() { |
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117 | m_cancellable = true; | |
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118 | 109 | } |
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119 | 110 | |
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120 |
public Promise(IPromise parent |
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121 | m_cancellable = cancellable; | |
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111 | public Promise(IPromise parent) { | |
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122 | 112 | if (parent != null) |
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123 | 113 | AddHandler( |
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124 | 114 | null, |
@@ -218,17 +208,17 namespace Implab { | |||
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218 | 208 | /// </summary> |
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219 | 209 | /// <remarks>Для определения была ли операция отменена следует использовать свойство <see cref="IsCancelled"/>.</remarks> |
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220 | 210 | public void Cancel() { |
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221 |
if ( |
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211 | if (BeginTransit()) { | |
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222 | 212 | CompleteTransit(CANCELLED_STATE); |
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223 | 213 | OnStateChanged(); |
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224 | 214 | } |
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225 | 215 | } |
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226 | 216 | |
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227 |
public IPromise<T> Then( |
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217 | public IPromise<T> Then(Action<T> success, Func<Exception,T> error, Action cancel) { | |
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228 | 218 | if (success == null && error == null && cancel == null) |
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229 | 219 | return this; |
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230 | 220 | |
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231 |
var medium = new Promise<T>(this |
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221 | var medium = new Promise<T>(this); | |
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232 | 222 | |
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233 | 223 | AddHandler(success, error, cancel, medium); |
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234 | 224 | |
@@ -242,11 +232,11 namespace Implab { | |||
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242 | 232 | /// This handler will recieve an operation result as a parameter.</param> |
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243 | 233 | /// <param name="error">Handles an exception that may occur during the operation and returns the value which will be used as the result of the operation.</param> |
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244 | 234 | /// <returns>The new promise chained to this one.</returns> |
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245 |
public IPromise<T> Then( |
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235 | public IPromise<T> Then(Action<T> success, Func<Exception,T> error) { | |
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246 | 236 | if (success == null && error == null) |
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247 | 237 | return this; |
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248 | 238 | |
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249 |
var medium = new Promise<T>(this |
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239 | var medium = new Promise<T>(this); | |
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250 | 240 | |
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251 | 241 | AddHandler(success, error, null, medium); |
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252 | 242 | |
@@ -256,11 +246,11 namespace Implab { | |||
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256 | 246 | |
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257 | 247 | |
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258 | 248 | |
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259 |
public IPromise<T> Then( |
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249 | public IPromise<T> Then(Action<T> success) { | |
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260 | 250 | if (success == null) |
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261 | 251 | return this; |
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262 | 252 | |
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263 |
var medium = new Promise<T>(this |
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253 | var medium = new Promise<T>(this); | |
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264 | 254 | |
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265 | 255 | AddHandler(success, null, null, medium); |
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266 | 256 | |
@@ -284,11 +274,11 namespace Implab { | |||
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284 | 274 | /// всей цепи обещаний снизу (с самого последнего обещания). |
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285 | 275 | /// </para> |
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286 | 276 | /// </remarks> |
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287 |
public void Last( |
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277 | public void Last(Action<T> success, Action<Exception> error, Action cancel) { | |
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288 | 278 | if (success == null && error == null && cancel == null) |
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289 | 279 | return; |
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290 | 280 | |
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291 |
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281 | Func<Exception,T> errorHandler = null; | |
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292 | 282 | if (error != null) |
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293 | 283 | errorHandler = err => { |
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294 | 284 | error(err); |
@@ -297,19 +287,19 namespace Implab { | |||
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297 | 287 | AddHandler(success, errorHandler, cancel, null); |
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298 | 288 | } |
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299 | 289 | |
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300 |
public void Last( |
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290 | public void Last(Action<T> success, Action<Exception> error) { | |
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301 | 291 | Last(success, error, null); |
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302 | 292 | } |
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303 | 293 | |
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304 |
public void Last( |
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294 | public void Last(Action<T> success) { | |
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305 | 295 | Last(success, null, null); |
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306 | 296 | } |
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307 | 297 | |
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308 |
public IPromise Error( |
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298 | public IPromise Error(Action<Exception> error) { | |
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309 | 299 | if (error == null) |
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310 | 300 | return this; |
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311 | 301 | |
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312 |
var medium = new Promise<T>(this |
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302 | var medium = new Promise<T>(this); | |
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313 | 303 | |
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314 | 304 | AddHandler( |
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315 | 305 | null, |
@@ -332,11 +322,11 namespace Implab { | |||
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332 | 322 | /// </remarks> |
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333 | 323 | /// <param name="handler">The error handler which returns the result of the promise.</param> |
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334 | 324 | /// <returns>New promise.</returns> |
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335 |
public IPromise<T> Error( |
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325 | public IPromise<T> Error(Func<Exception,T> handler) { | |
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336 | 326 | if (handler == null) |
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337 | 327 | return this; |
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338 | 328 | |
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339 |
var medium = new Promise<T>(this |
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329 | var medium = new Promise<T>(this); | |
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340 | 330 | |
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341 | 331 | AddHandler(null, handler, null, medium); |
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342 | 332 | |
@@ -352,14 +342,14 namespace Implab { | |||
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352 | 342 | /// исключение возникшее при выполнении операции.</param> |
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353 | 343 | /// <returns>Новое обещание, которое будет выполнено при выполнении исходного обещания.</returns> |
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354 | 344 | /// <param name = "cancel"></param> |
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355 |
public IPromise<TNew> Then<TNew>( |
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345 | public IPromise<TNew> Then<TNew>(Func<T, TNew> mapper, Func<Exception,TNew> error, Action cancel) { | |
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356 | 346 | Safe.ArgumentNotNull(mapper, "mapper"); |
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357 | 347 | |
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358 | 348 | // создаем прицепленное обещание |
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359 |
var medium = new Promise<TNew>(this |
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349 | var medium = new Promise<TNew>(this); | |
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360 | 350 | |
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361 |
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362 |
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351 | Action<T> resultHandler = result => medium.Resolve(mapper(result)); | |
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352 | Func<Exception,T> errorHandler; | |
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363 | 353 | if (error != null) |
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364 | 354 | errorHandler = e => { |
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365 | 355 | try { |
@@ -396,11 +386,11 namespace Implab { | |||
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396 | 386 | return medium; |
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397 | 387 | } |
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398 | 388 | |
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399 |
public IPromise<TNew> Then<TNew>( |
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389 | public IPromise<TNew> Then<TNew>(Func<T, TNew> mapper, Func<Exception,TNew> error) { | |
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400 | 390 | return Then(mapper, error, null); |
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401 | 391 | } |
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402 | 392 | |
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403 |
public IPromise<TNew> Then<TNew>( |
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393 | public IPromise<TNew> Then<TNew>(Func<T, TNew> mapper) { | |
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404 | 394 | return Then(mapper, null, null); |
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405 | 395 | } |
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406 | 396 | |
@@ -415,7 +405,7 namespace Implab { | |||
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415 | 405 | /// исключение возникшее при выполнении текуещй операции.</param> |
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416 | 406 | /// <returns>Новое обещание, которое будет выполнено по окончанию указанной аснхронной операции.</returns> |
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417 | 407 | /// <param name = "cancel"></param> |
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418 |
public IPromise<TNew> Chain<TNew>( |
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408 | public IPromise<TNew> Chain<TNew>(Func<T, IPromise<TNew>> chained, Func<Exception,IPromise<TNew>> error, Action cancel) { | |
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419 | 409 | |
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420 | 410 | Safe.ArgumentNotNull(chained, "chained"); |
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421 | 411 | |
@@ -423,9 +413,9 namespace Implab { | |||
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423 | 413 | // создать посредника, к которому будут подвызяваться следующие обработчики. |
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424 | 414 | // когда будет выполнена реальная асинхронная операция, она обратиться к посреднику, чтобы |
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425 | 415 | // передать через него результаты работы. |
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426 |
var medium = new Promise<TNew>(this |
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416 | var medium = new Promise<TNew>(this); | |
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427 | 417 | |
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428 |
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418 | Action<T> resultHandler = delegate(T result) { | |
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429 | 419 | if (medium.IsCancelled) |
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430 | 420 | return; |
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431 | 421 | |
@@ -440,13 +430,17 namespace Implab { | |||
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440 | 430 | // notify chained operation that it's not needed anymore |
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441 | 431 | // порядок вызова Then, Cancelled важен, поскольку от этого |
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442 | 432 | // зависит IsExclusive |
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443 |
medium. |
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433 | medium.Last( | |
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434 | null, | |
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435 | null, | |
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436 | () => { | |
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444 | 437 | if (promise.IsExclusive) |
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445 | 438 | promise.Cancel(); |
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446 |
} |
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439 | } | |
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440 | ); | |
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447 | 441 | }; |
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448 | 442 | |
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449 |
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443 | Func<Exception,T> errorHandler; | |
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450 | 444 | |
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451 | 445 | if (error != null) |
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452 | 446 | errorHandler = delegate(Exception e) { |
@@ -498,16 +492,16 namespace Implab { | |||
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498 | 492 | return medium; |
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499 | 493 | } |
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500 | 494 | |
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501 |
public IPromise<TNew> Chain<TNew>( |
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495 | public IPromise<TNew> Chain<TNew>(Func<T, IPromise<TNew>> chained, Func<Exception,IPromise<TNew>> error) { | |
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502 | 496 | return Chain(chained, error, null); |
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503 | 497 | } |
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504 | 498 | |
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505 |
public IPromise<TNew> Chain<TNew>( |
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499 | public IPromise<TNew> Chain<TNew>(Func<T, IPromise<TNew>> chained) { | |
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506 | 500 | return Chain(chained, null, null); |
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507 | 501 | } |
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508 | 502 | |
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509 | 503 | public IPromise<T> Cancelled(Action handler) { |
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510 |
var medium = new Promise<T>(this |
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504 | var medium = new Promise<T>(this); | |
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511 | 505 | AddHandler(null, null, handler, medium); |
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512 | 506 | return medium; |
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513 | 507 | } |
@@ -585,7 +579,7 namespace Implab { | |||
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585 | 579 | return Join(Timeout.Infinite); |
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586 | 580 | } |
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587 | 581 | |
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588 |
void AddHandler( |
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582 | void AddHandler(Action<T> success, Func<Exception,T> error, Action cancel, Promise<T> medium) { | |
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589 | 583 | if (success != null || error != null) |
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590 | 584 | Interlocked.Increment(ref m_childrenCount); |
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591 | 585 | |
@@ -759,10 +753,10 namespace Implab { | |||
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759 | 753 | |
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760 | 754 | #region IPromiseBase explicit implementation |
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761 | 755 | |
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762 |
IPromise IPromise.Then(Action success, |
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756 | IPromise IPromise.Then(Action success, Action<Exception> error, Action cancel) { | |
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763 | 757 | return Then( |
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764 |
success != null ? new |
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765 |
error != null ? new |
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758 | success != null ? new Action<T>(x => success()) : null, | |
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759 | error != null ? new Func<Exception,T>(e => { | |
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766 | 760 | error(e); |
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767 | 761 | return default(T); |
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768 | 762 | }) : null, |
@@ -770,10 +764,10 namespace Implab { | |||
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770 | 764 | ); |
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771 | 765 | } |
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772 | 766 | |
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773 |
IPromise IPromise.Then(Action success, |
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767 | IPromise IPromise.Then(Action success, Action<Exception> error) { | |
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774 | 768 | return Then( |
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775 |
success != null ? new |
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776 |
error != null ? new |
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769 | success != null ? new Action<T>(x => success()) : null, | |
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770 | error != null ? new Func<Exception,T>(e => { | |
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777 | 771 | error(e); |
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778 | 772 | return default(T); |
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779 | 773 | }) : null |
@@ -785,16 +779,16 namespace Implab { | |||
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785 | 779 | return Then(x => success()); |
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786 | 780 | } |
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787 | 781 | |
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788 |
IPromise IPromise.Chain(Func<IPromise> chained, |
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782 | IPromise IPromise.Chain(Func<IPromise> chained, Func<Exception,IPromise> error, Action cancel) { | |
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789 | 783 | return ChainNoResult(chained, error, cancel); |
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790 | 784 | } |
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791 | 785 | |
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792 |
IPromise ChainNoResult(Func<IPromise> chained, |
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786 | IPromise ChainNoResult(Func<IPromise> chained, Func<Exception,IPromise> error, Action cancel) { | |
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793 | 787 | Safe.ArgumentNotNull(chained, "chained"); |
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794 | 788 | |
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795 |
var medium = new Promise<object>(this |
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789 | var medium = new Promise<object>(this); | |
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796 | 790 | |
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797 |
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791 | Action<T> resultHandler = delegate { | |
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798 | 792 | if (medium.IsCancelled) |
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799 | 793 | return; |
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800 | 794 | |
@@ -815,7 +809,7 namespace Implab { | |||
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815 | 809 | }); |
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816 | 810 | }; |
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817 | 811 | |
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818 |
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812 | Func<Exception,T> errorHandler; | |
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819 | 813 | |
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820 | 814 | if (error != null) |
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821 | 815 | errorHandler = delegate(Exception e) { |
@@ -866,7 +860,7 namespace Implab { | |||
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866 | 860 | |
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867 | 861 | return medium; |
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868 | 862 | } |
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869 |
IPromise IPromise.Chain(Func<IPromise> chained, |
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863 | IPromise IPromise.Chain(Func<IPromise> chained, Func<Exception,IPromise> error) { | |
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870 | 864 | return ChainNoResult(chained, error, null); |
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871 | 865 | } |
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872 | 866 | IPromise IPromise.Chain(Func<IPromise> chained) { |
@@ -874,11 +868,11 namespace Implab { | |||
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874 | 868 | } |
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875 | 869 | |
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876 | 870 | |
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877 |
void IPromise.Last(Action success, |
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871 | void IPromise.Last(Action success, Action<Exception> error, Action cancel) { | |
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878 | 872 | Last(x => success(), error, cancel); |
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879 | 873 | } |
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880 | 874 | |
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881 |
void IPromise.Last(Action success, |
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875 | void IPromise.Last(Action success, Action<Exception> error) { | |
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882 | 876 | Last(x => success(), error, null); |
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883 | 877 | } |
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884 | 878 | |
@@ -886,7 +880,7 namespace Implab { | |||
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886 | 880 | Last(x => success(), null, null); |
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887 | 881 | } |
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888 | 882 | |
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889 |
IPromise IPromise.Error( |
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883 | IPromise IPromise.Error(Action<Exception> error) { | |
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890 | 884 | return Error(error); |
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891 | 885 | } |
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892 | 886 |
@@ -12,7 +12,7 namespace Implab { | |||
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12 | 12 | if (context == null) |
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13 | 13 | return that; |
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14 | 14 | |
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15 |
var p = new SyncContextPromise<T>(context, that |
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15 | var p = new SyncContextPromise<T>(context, that); | |
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16 | 16 | |
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17 | 17 | that.Last( |
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18 | 18 | p.Resolve, |
@@ -26,7 +26,7 namespace Implab { | |||
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26 | 26 | Safe.ArgumentNotNull(that, "that"); |
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27 | 27 | Safe.ArgumentNotNull(context, "context"); |
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28 | 28 | |
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29 |
var p = new SyncContextPromise<T>(context, that |
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29 | var p = new SyncContextPromise<T>(context, that); | |
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30 | 30 | |
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31 | 31 | that.Last( |
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32 | 32 | p.Resolve, |
@@ -36,6 +36,24 namespace Implab { | |||
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36 | 36 | return p; |
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37 | 37 | } |
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38 | 38 | |
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39 | /// <summary> | |
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40 | /// Ensures the dispatched. | |
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41 | /// </summary> | |
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42 | /// <returns>The dispatched.</returns> | |
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43 | /// <param name="that">That.</param> | |
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44 | /// <param name="head">Head.</param> | |
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45 | /// <param name="cleanup">Cleanup.</param> | |
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46 | /// <typeparam name="TPromise">The 1st type parameter.</typeparam> | |
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47 | /// <typeparam name="T">The 2nd type parameter.</typeparam> | |
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48 | public static TPromise EnsureDispatched<TPromise,T>(this TPromise that, IPromise<T> head, Action<T> cleanup) where TPromise : IPromise{ | |
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49 | Safe.ArgumentNotNull(that, "that"); | |
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50 | Safe.ArgumentNotNull(head, "head"); | |
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51 | ||
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52 | that.Last(null,null,() => head.Last(cleanup)); | |
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53 | ||
|
54 | return that; | |
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55 | } | |
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56 | ||
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39 | 57 | public static AsyncCallback AsyncCallback<T>(this Promise<T> that, Func<IAsyncResult,T> callback) { |
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40 | 58 | Safe.ArgumentNotNull(that, "that"); |
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41 | 59 | Safe.ArgumentNotNull(callback, "callback"); |
@@ -9,8 +9,8 namespace Implab { | |||
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9 | 9 | m_context = context; |
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10 | 10 | } |
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11 | 11 | |
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12 |
public SyncContextPromise(SynchronizationContext context, IPromise parent |
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13 |
: base(parent |
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12 | public SyncContextPromise(SynchronizationContext context, IPromise parent) | |
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13 | : base(parent) { | |
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14 | 14 | Safe.ArgumentNotNull(context, "context"); |
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15 | 15 | m_context = context; |
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16 | 16 | } |
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