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114 changes: 114 additions & 0 deletions
114
src/ScriptEngine.HostedScript/Library/Tasks/BackgroundTask.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /*---------------------------------------------------------- | ||
| This Source Code Form is subject to the terms of the | ||
| Mozilla Public License, v.2.0. If a copy of the MPL | ||
| was not distributed with this file, You can obtain one | ||
| at http://mozilla.org/MPL/2.0/. | ||
| ----------------------------------------------------------*/ | ||
|
|
||
| using System.Linq; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
| using ScriptEngine.Machine; | ||
| using ScriptEngine.Machine.Contexts; | ||
|
|
||
| namespace ScriptEngine.HostedScript.Library.Tasks | ||
| { | ||
| [ContextClass("ФоновоеЗадание", "BackgroundTask")] | ||
| public class BackgroundTask : AutoContext<BackgroundTask> | ||
| { | ||
| private readonly MethodInfo _method; | ||
| private readonly int _methIndex; | ||
| private Task _workerTask; | ||
| private int _taskId; | ||
|
|
||
| public BackgroundTask(IRuntimeContextInstance target, string methodName, ArrayImpl parameters = default) | ||
| { | ||
| Target = target; | ||
| MethodName = methodName; | ||
| if(parameters != default) | ||
| Parameters = new ArrayImpl(parameters); | ||
|
|
||
| Identifier = new GuidWrapper(); | ||
|
|
||
| _methIndex = Target.FindMethod(MethodName); | ||
| _method = Target.GetMethodInfo(_methIndex); | ||
| } | ||
|
|
||
| public Task WorkerTask | ||
| { | ||
| get => _workerTask; | ||
| set | ||
| { | ||
| _workerTask = value; | ||
| _taskId = _workerTask.Id; | ||
| } | ||
| } | ||
|
|
||
| public int TaskId => _taskId; | ||
|
|
||
| [ContextProperty("УникальныйИдентификатор","UUID")] | ||
| public GuidWrapper Identifier { get; private set; } | ||
|
|
||
| [ContextProperty("ИмяМетода","MethodName")] | ||
| public string MethodName { get; private set; } | ||
|
|
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| [ContextProperty("Объект","Object")] | ||
| public IRuntimeContextInstance Target { get; private set; } | ||
|
|
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| [ContextProperty("Состояние", "State")] | ||
| public TaskStateEnum State { get; private set; } | ||
|
|
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| [ContextProperty("Параметры", "Parameters")] | ||
| public IValue Parameters { get; private set; } = ValueFactory.Create(); | ||
|
|
||
| [ContextProperty("Результат", "Result")] | ||
| public IValue Result { get; private set; } = ValueFactory.Create(); | ||
|
|
||
| [ContextProperty("ИнформацияОбОшибке", "ExceptionInfo")] | ||
| public ExceptionInfoContext ExceptionInfo { get; private set; } | ||
|
|
||
| /// <summary> | ||
| /// Ждать завершения задания указанное число миллисекунд | ||
| /// </summary> | ||
| /// <param name="timeout">Таймаут. Если ноль - ждать вечно</param> | ||
| /// <returns>Истина - дождались завершения. Ложь - сработал таймаут</returns> | ||
| [ContextMethod("ОжидатьЗавершения", "Wait")] | ||
| public bool Wait(int timeout = 0) | ||
| { | ||
| timeout = BackgroundTasksManager.ConvertTimeout(timeout); | ||
|
|
||
| return WorkerTask.Wait(timeout); | ||
| } | ||
|
|
||
| public void ExecuteOnCurrentThread() | ||
| { | ||
| if (State != TaskStateEnum.NotRunned) | ||
| throw new RuntimeException(Locale.NStr("ru = 'Неверное состояние задачи';en = 'Incorrect task status'")); | ||
|
|
||
| var parameters = Parameters is ArrayImpl array ? | ||
| array.ToArray() : | ||
| new IValue[0]; | ||
|
|
||
| try | ||
| { | ||
| State = TaskStateEnum.Running; | ||
| if (_method.IsFunction) | ||
| { | ||
| Target.CallAsFunction(_methIndex, parameters, out var result); | ||
| Result = result; | ||
| } | ||
| else | ||
| { | ||
| Target.CallAsProcedure(_methIndex, parameters); | ||
| } | ||
|
|
||
| State = TaskStateEnum.Completed; | ||
| } | ||
| catch (RuntimeException exception) | ||
| { | ||
| State = TaskStateEnum.CompletedWithErrors; | ||
| ExceptionInfo = new ExceptionInfoContext(exception); | ||
| } | ||
| } | ||
| } | ||
| } |
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