Mercurial > pub > ImplabNet
annotate Implab/IPromise.cs @ 122:0c8685c8b56b v2
minor fixes and improvements of AsyncQueue, additional tests
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date | Mon, 12 Jan 2015 22:20:45 +0300 |
parents | 2573b562e328 |
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7 | 1 using System; |
2 using System.Collections.Generic; | |
3 using System.Linq; | |
4 using System.Text; | |
5 | |
66 | 6 namespace Implab { |
7 public interface IPromise: ICancellable { | |
26 | 8 |
66 | 9 /// <summary> |
10 /// Тип результата, получаемого через данное обещание. | |
11 /// </summary> | |
12 Type PromiseType { get; } | |
25 | 13 |
74 | 14 /// <summary> |
99 | 15 /// Обещание является выполненым, либо успешно, либо с ошибкой, либо отменено. |
74 | 16 /// </summary> |
66 | 17 bool IsResolved { get; } |
18 | |
74 | 19 /// <summary> |
20 /// Обещание было отменено. | |
21 /// </summary> | |
66 | 22 bool IsCancelled { get; } |
25 | 23 |
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24 /// <summary> |
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25 /// Creates a new promise dependend on the current one and resolved on |
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26 /// executing the specified handlers. |
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27 /// </summary> |
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28 /// <param name="success">The handler called on the successful promise completion.</param> |
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29 /// <param name="error">The handler is called if an error while completing the promise occurred.</param> |
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30 /// <param name="cancel">The handler is called in case of promise cancellation.</param> |
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31 /// <returns>The newly created dependant promise.</returns> |
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32 /// <remarks> |
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33 /// <para> |
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34 /// If the success handler is specified the dependend promise will be resolved after the handler is |
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35 /// executed and the dependent promise will be linked to the current one, i.e. the cancellation |
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36 /// of the dependent property will lead to the cancellation of the current promise. If the |
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37 /// success handler isn't specified the dependent promise will not be linked to and |
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38 /// will not be resolved after the successfull resolution of the current one. |
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39 /// </para> |
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40 /// <para> |
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41 /// When the error handler is specified, the exception raised during the current promise completion |
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42 /// will be passed to it as the parameter. If the error handler returns without raising an |
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43 /// exception then the dependant promise will be resolved successfully, otherwise the exception |
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44 /// raised by the handler will be transmitted to the dependent promise. If the handler wants |
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45 /// to passthrough the original exception it needs to wrap the exception with |
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46 /// the <see cref="PromiseTransientException"/>. |
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47 /// </para> |
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48 /// <para> |
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49 /// If the cancelation handler is specified and the current promise is cancelled then the dependent |
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50 /// promise will be resolved after the handler is executed. If the cancelation hendler raises the |
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51 /// exception it will be passed to the dependent promise. |
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52 /// </para> |
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53 /// </remarks> |
101 | 54 IPromise Then(Action success, Action<Exception> error, Action cancel); |
55 IPromise Then(Action success, Action<Exception> error); | |
66 | 56 IPromise Then(Action success); |
75 | 57 |
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58 IPromise Chain(Func<IPromise> chained, Func<Exception, IPromise> error, Func<IPromise> cancel); |
101 | 59 IPromise Chain(Func<IPromise> chained, Func<Exception, IPromise> error); |
96 | 60 IPromise Chain(Func<IPromise> chained); |
61 | |
75 | 62 /// <summary> |
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63 /// Adds specified listeners to the current promise. |
75 | 64 /// </summary> |
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65 /// <param name="success">The handler called on the successful promise completion.</param> |
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66 /// <param name="error">The handler is called if an error while completing the promise occurred.</param> |
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67 /// <param name="cancel">The handler is called in case of promise cancellation.</param> |
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68 /// <returns>The current promise.</returns> |
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69 IPromise On(Action success, Action<Exception> error, Action cancel); |
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70 IPromise On(Action success, Action<Exception> error); |
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71 IPromise On(Action success); |
75 | 72 |
74 | 73 /// <summary> |
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74 /// Adds specified listeners to the current promise. |
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75 /// </summary> |
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76 /// <param name="handler">The handler called on the specified events.</param> |
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77 /// <param name = "events">The combination of flags denoting the events for which the |
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78 /// handler shoud be called.</param> |
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79 /// <returns>The current promise.</returns> |
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80 IPromise On(Action handler, PromiseEventType events); |
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81 |
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82 /// <summary> |
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83 /// Adds the specified error handler to the current promise |
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84 /// and creates the new dependant promise. |
74 | 85 /// </summary> |
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86 /// <param name="error"> |
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87 /// The error handler. If the error handler returns without |
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88 /// an error the dependant promise will be successfully resolved. |
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89 /// </param> |
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90 /// <returns> |
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91 /// The new dependant promise which will be resolved after the error |
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92 /// handler is executed. |
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93 /// </returns> |
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94 /// <remarks> |
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95 /// The successfull result of the current promise will be ignored. |
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96 /// </remarks> |
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97 IPromise Error(Action<Exception> error); |
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98 |
74 | 99 /// <summary> |
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100 /// Adds the specified cncellation handler to the current promise |
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101 /// and creates the new dependant promise. |
74 | 102 /// </summary> |
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103 /// <returns> |
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104 /// The new dependant promise which will be resolved after the cancellation |
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105 /// handler is executed. |
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106 /// </returns> |
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107 /// <param name="handler"> |
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108 /// The cancellation handler. |
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109 /// </param> |
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110 /// <remarks> |
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111 /// If the cancellation handler is executed without an error the dependent |
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112 /// promise will be successfully resolved, otherwise the raised exception |
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113 /// will be passed to the dependant promise. The successful result of the |
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114 /// current promise will be ignored. |
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115 /// </remarks> |
66 | 116 IPromise Cancelled(Action handler); |
7 | 117 |
74 | 118 /// <summary> |
119 /// Преобразует результат обещания к заданному типу и возвращает новое обещание. | |
120 /// </summary> | |
66 | 121 IPromise<T> Cast<T>(); |
26 | 122 |
74 | 123 /// <summary> |
124 /// Синхронизирует текущий поток с обещанием. | |
125 /// </summary> | |
66 | 126 void Join(); |
74 | 127 /// <summary> |
128 /// Синхронизирует текущий поток с обещанием. | |
129 /// </summary> | |
130 /// <param name="timeout">Время ожидания, по его истечению возникнет исключение.</param> | |
131 /// <exception cref="TimeoutException">Превышено время ожидания.</exception> | |
66 | 132 void Join(int timeout); |
7 | 133 |
134 } | |
135 } |