Auto status change to "Under Review"
@@ -0,0 +1,35 | |||
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1 | using System; | |
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2 | using System.Threading; | |
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3 | using System.Threading.Tasks; | |
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4 | using Implab.Components; | |
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5 | ||
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6 | namespace Implab.Test { | |
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7 | public class MockPollComponent : PollingComponent { | |
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8 | ||
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9 | public Func<CancellationToken,Task> PollWorker { get; set;} | |
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10 | ||
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11 | public Func<CancellationToken, Task> StartWorker { get; set; } | |
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12 | ||
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13 | public Func<CancellationToken, Task> StopWorker { get; set; } | |
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14 | ||
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15 | public MockPollComponent(bool initialized) : base(initialized) { | |
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16 | } | |
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17 | ||
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18 | protected async override Task Poll(CancellationToken ct) { | |
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19 | if(PollWorker!= null) | |
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20 | await PollWorker.Invoke(ct); | |
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21 | } | |
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22 | ||
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23 | protected async override Task StopInternalAsync(CancellationToken ct) { | |
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24 | if (StopWorker != null) | |
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25 | await StopWorker.Invoke(ct); | |
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26 | } | |
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27 | ||
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28 | protected async override Task StartInternalAsync(CancellationToken ct) { | |
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29 | if (StartWorker != null) | |
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30 | await StartWorker.Invoke(ct); | |
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31 | } | |
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32 | ||
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33 | ||
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34 | } | |
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35 | } No newline at end of file |
@@ -1,69 +1,20 | |||
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1 | <?xml version="1.0" encoding="utf-8"?> | |
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2 | <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | |
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3 | <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> | |
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4 | <PropertyGroup> | |
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5 | <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> | |
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6 | <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> | |
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7 | <ProjectGuid>{100DFEB0-75BE-436F-ADDF-1F46EF433F46}</ProjectGuid> | |
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8 | <OutputType>Exe</OutputType> | |
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9 | <AppDesignerFolder>Properties</AppDesignerFolder> | |
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10 | <RootNamespace>Implab.Playground</RootNamespace> | |
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11 | <AssemblyName>Implab.Playground</AssemblyName> | |
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12 | <TargetFrameworkVersion>v4.6</TargetFrameworkVersion> | |
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13 | <FileAlignment>512</FileAlignment> | |
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14 | <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects> | |
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15 | <TargetFrameworkProfile /> | |
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1 | <Project Sdk="Microsoft.NET.Sdk"> | |
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2 | <PropertyGroup Condition="'$(OSTYPE)'=='linux'"> | |
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3 | <TargetFrameworks>netcoreapp2.0;net46</TargetFrameworks> | |
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4 | <FrameworkPathOverride Condition="'$(TargetFramework)'=='net46'">/usr/lib/mono/4.6-api/</FrameworkPathOverride> | |
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16 | 5 | </PropertyGroup> |
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17 | <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> | |
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18 | <PlatformTarget>AnyCPU</PlatformTarget> | |
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19 | <DebugSymbols>true</DebugSymbols> | |
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20 | <DebugType>full</DebugType> | |
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21 | <Optimize>false</Optimize> | |
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22 | <OutputPath>bin\Debug\</OutputPath> | |
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23 | <DefineConstants>DEBUG;TRACE</DefineConstants> | |
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24 | <ErrorReport>prompt</ErrorReport> | |
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25 | <WarningLevel>4</WarningLevel> | |
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6 | ||
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7 | <PropertyGroup Condition="'$(OSTYPE)'=='windows'"> | |
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8 | <TargetFrameworks>netcoreapp2.0;net46</TargetFrameworks> | |
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26 | 9 | </PropertyGroup> |
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27 | <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> | |
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28 | <PlatformTarget>AnyCPU</PlatformTarget> | |
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29 | <DebugType>pdbonly</DebugType> | |
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30 | <Optimize>true</Optimize> | |
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31 | <OutputPath>bin\Release\</OutputPath> | |
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32 | <DefineConstants>TRACE</DefineConstants> | |
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33 | <ErrorReport>prompt</ErrorReport> | |
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34 | <WarningLevel>4</WarningLevel> | |
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35 | <Prefer32Bit>true</Prefer32Bit> | |
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36 | <DebugSymbols>true</DebugSymbols> | |
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10 | ||
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11 | <PropertyGroup> | |
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12 | <OutputType>Exe</OutputType> | |
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13 | <IsPackable>false</IsPackable> | |
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37 | 14 | </PropertyGroup> |
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38 | <ItemGroup> | |
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39 | <Reference Include="System" /> | |
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40 | <Reference Include="System.Core" /> | |
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41 | <Reference Include="System.Xml.Linq" /> | |
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42 | <Reference Include="System.Data.DataSetExtensions" /> | |
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43 | <Reference Include="Microsoft.CSharp" /> | |
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44 | <Reference Include="System.Data" /> | |
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45 | <Reference Include="System.Net.Http" /> | |
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46 | <Reference Include="System.Xml" /> | |
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47 | </ItemGroup> | |
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15 | ||
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48 | 16 | <ItemGroup> |
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49 | <Compile Include="Program.cs" /> | |
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50 | <Compile Include="Properties\AssemblyInfo.cs" /> | |
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51 | </ItemGroup> | |
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52 | <ItemGroup> | |
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53 | <None Include="App.config" /> | |
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17 | <ProjectReference Include="../Implab/Implab.csproj"/> | |
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54 | 18 | </ItemGroup> |
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55 | <ItemGroup> | |
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56 | <ProjectReference Include="..\Implab\Implab.csproj"> | |
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57 | <Project>{f550f1f8-8746-4ad0-9614-855f4c4b7f05}</Project> | |
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58 | <Name>Implab</Name> | |
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59 | </ProjectReference> | |
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60 | </ItemGroup> | |
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61 | <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> | |
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62 | <!-- To modify your build process, add your task inside one of the targets below and uncomment it. | |
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63 | Other similar extension points exist, see Microsoft.Common.targets. | |
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64 | <Target Name="BeforeBuild"> | |
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65 | </Target> | |
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66 | <Target Name="AfterBuild"> | |
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67 | </Target> | |
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68 | --> | |
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69 | </Project> No newline at end of file | |
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19 | ||
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20 | </Project> |
@@ -1,55 +1,54 | |||
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1 | 1 | using Implab.Diagnostics; |
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2 | 2 | using Implab.Formats.Json; |
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3 | 3 | using Implab.Parallels; |
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4 | 4 | using Implab.Xml; |
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5 | 5 | using System; |
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6 | 6 | using System.Collections.Concurrent; |
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7 | 7 | using System.Collections.Generic; |
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8 | 8 | using System.IO; |
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9 | 9 | using System.Linq; |
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10 | 10 | using System.Text; |
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11 | 11 | using System.Threading; |
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12 | 12 | using System.Threading.Tasks; |
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13 | 13 | using System.Xml; |
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14 | 14 | using System.Xml.Serialization; |
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15 | 15 | |
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16 | 16 | namespace Implab.Playground { |
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17 | 17 | using System.Diagnostics; |
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18 | using System.Runtime.Remoting.Messaging; | |
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19 | 18 | using static Trace<Program>; |
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20 | 19 | |
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21 | 20 | public class Program { |
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22 | 21 | |
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23 | 22 | static void Main(string[] args) { |
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24 | 23 | var listener = new SimpleTraceListener(Console.Out); |
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25 | 24 | |
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26 | 25 | var source = Trace<Program>.TraceSource; |
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27 | 26 | source.Switch.Level = SourceLevels.All; |
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28 | 27 | |
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29 | 28 | source.Listeners.Add(listener); |
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30 | 29 | |
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31 | 30 | var t = Environment.TickCount; |
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32 | 31 | |
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33 | 32 | Main().Wait(); |
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34 | 33 | |
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35 | 34 | Console.WriteLine($"Done: {Environment.TickCount - t} ms"); |
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36 | 35 | Console.ReadKey(); |
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37 | 36 | } |
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38 | 37 | |
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39 | 38 | static async Task Main() { |
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40 | 39 | using (LogicalOperation(nameof(Main))) { |
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41 | 40 | Log("Start"); |
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42 | 41 | await SomeAsync(); |
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43 | 42 | Log("End"); |
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44 | 43 | } |
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45 | 44 | } |
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46 | 45 | |
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47 | 46 | static async Task SomeAsync() { |
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48 | 47 | using (LogicalOperation(nameof(SomeAsync))) { |
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49 | 48 | Log("Do prepare"); |
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50 | 49 | await Task.Yield(); |
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51 | 50 | Log("Yield"); |
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52 | 51 | } |
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53 | 52 | } |
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54 | 53 | } |
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55 | 54 | } |
@@ -1,17 +1,23 | |||
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1 | 1 | <Project Sdk="Microsoft.NET.Sdk"> |
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2 | <PropertyGroup Condition="'$(OSTYPE)'=='linux'"> | |
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3 | <TargetFrameworks>netcoreapp2.0</TargetFrameworks> | |
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4 | <FrameworkPathOverride Condition="'$(TargetFramework)'=='net46'">/usr/lib/mono/4.5/</FrameworkPathOverride> | |
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5 | </PropertyGroup> | |
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6 | ||
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7 | <PropertyGroup Condition="'$(OSTYPE)'=='windows'"> | |
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8 | <TargetFrameworks>netcoreapp2.0;net46</TargetFrameworks> | |
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9 | </PropertyGroup> | |
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2 | 10 | |
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3 | 11 | <PropertyGroup> |
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4 | <TargetFramework>netcoreapp2.1</TargetFramework> | |
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5 | ||
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6 | 12 | <IsPackable>false</IsPackable> |
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7 | 13 | </PropertyGroup> |
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8 | 14 | |
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9 | 15 | <ItemGroup> |
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10 | 16 | <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.6.0-preview-20180109-01" /> |
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11 | 17 | <PackageReference Include="xunit" Version="2.3.1" /> |
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12 | 18 | <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" /> |
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13 | 19 | <ProjectReference Include="../Implab/Implab.csproj"/> |
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14 | 20 | <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" /> |
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15 | 21 | </ItemGroup> |
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16 | ||
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22 | ||
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17 | 23 | </Project> |
@@ -1,42 +1,30 | |||
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1 | 1 | using System; |
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2 | 2 | using System.Threading; |
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3 | 3 | using System.Threading.Tasks; |
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4 | 4 | using Implab.Components; |
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5 | 5 | using Xunit; |
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6 | 6 | |
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7 | namespace Implab.Test | |
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8 | { | |
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9 | class TimeLog : PollingComponent { | |
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10 | public TimeLog() : base(true) { | |
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11 | } | |
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7 | namespace Implab.Test { | |
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12 | 8 | |
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13 | protected override Task Poll(CancellationToken ct) { | |
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14 | Console.WriteLine("Poll"); | |
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15 | return Task.CompletedTask; | |
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16 | } | |
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17 | } | |
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18 | ||
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19 | public class UnitTest1 | |
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20 | { | |
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9 | public class RunnableComponentTests { | |
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21 | 10 | [Fact] |
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22 | public async Task Test1() | |
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23 | { | |
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11 | public async Task Test1() { | |
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24 | 12 | |
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25 |
using(var |
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26 | tl.StateChanged += (self, args) => Console.WriteLine("{0}", args.State); | |
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27 | tl.Delay = 1000; | |
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28 | tl.Interval = 500; | |
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13 | using (var m = new MockPollComponent(true)) { | |
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14 | m.StartWorker = async (ct) => await Task.Yield(); | |
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15 | m.StopWorker = async (ct) => await Task.Yield(); | |
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29 | 16 | |
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17 | Assert.Equal(ExecutionState.Ready, m.State); | |
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18 | Assert.NotNull(m.Completion); | |
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30 | 19 | |
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31 |
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32 |
await |
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20 | m.Start(CancellationToken.None); | |
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21 | await m.Completion; | |
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22 | Assert.Equal(ExecutionState.Running, m.State); | |
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33 | 23 | |
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34 | await Task.Delay(2000); | |
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35 | ||
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36 | tl.Stop(CancellationToken.None); | |
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37 | await tl.Completion; | |
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38 | await Task.Delay(3000); | |
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24 | m.Stop(CancellationToken.None); | |
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25 | await m.Completion; | |
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26 | Assert.Equal(ExecutionState.Stopped, m.State); | |
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39 | 27 | } |
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40 | 28 | } |
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41 | 29 | } |
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42 | 30 | } |
@@ -1,89 +1,93 | |||
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1 | 1 | using System; |
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2 | 2 | using System.Threading; |
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3 | 3 | using System.Threading.Tasks; |
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4 | 4 | |
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5 | 5 | namespace Implab.Components { |
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6 | 6 | public abstract class PollingComponent : RunnableComponent { |
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7 | 7 | |
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8 | 8 | readonly Timer m_timer; |
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9 | 9 | |
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10 | 10 | readonly CancellationTokenSource m_cancellation = new CancellationTokenSource(); |
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11 | 11 | |
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12 | 12 | Task m_pending; |
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13 | 13 | Task m_poll; |
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14 | 14 | |
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15 | 15 | /// <summary> |
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16 | 16 | /// Poll interval in milliseconds. |
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17 | 17 | /// </summary> |
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18 | 18 | /// <returns></returns> |
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19 | 19 | public int Interval { get; set; } |
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20 | 20 | |
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21 | 21 | /// <summary> |
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22 | 22 | /// Delay to the first poll after start in milliseconds |
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23 | 23 | /// </summary> |
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24 | 24 | /// <returns></returns> |
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25 | 25 | public int Delay { get; set; } |
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26 | 26 | |
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27 | 27 | /// <summary> |
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28 | 28 | /// Indicates how to handle unhandled exceptions in <see cref="Poll()"/> method. |
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29 | 29 | /// </summary> |
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30 | 30 | /// <returns></returns> |
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31 | 31 | public bool FailOnError { get; set; } |
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32 | 32 | |
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33 | 33 | /// <summary> |
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34 | 34 | /// Event for the unhandled exceptions in <see cref="Poll()"/> method. |
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35 | 35 | /// </summary> |
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36 | 36 | public event EventHandler<UnhandledExceptionEventArgs> UnhandledException; |
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37 | 37 | |
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38 | 38 | protected PollingComponent(bool initialized) : base(initialized) { |
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39 | 39 | m_timer = new Timer(OnTimer); |
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40 | 40 | } |
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41 | 41 | |
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42 | 42 | protected override void RunInternal() { |
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43 | 43 | ScheduleNextPoll(Delay); |
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44 | 44 | } |
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45 | 45 | |
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46 | 46 | |
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47 | 47 | protected override async Task StopInternalAsync(CancellationToken ct) { |
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48 | 48 | // component in Stopping state, no new polls will be scheduled |
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49 | 49 | m_cancellation.Cancel(); |
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50 | 50 | try { |
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51 | 51 | // await for pending poll |
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52 | 52 | await m_poll; |
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53 |
} catch (OperationCanceledException |
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53 | } catch (OperationCanceledException) { | |
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54 | 54 | // OK |
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55 | 55 | } |
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56 | 56 | } |
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57 | 57 | |
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58 | 58 | protected abstract Task Poll(CancellationToken ct); |
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59 | 59 | |
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60 | 60 | void ScheduleNextPoll(int timeout) { |
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61 | 61 | lock (SynchronizationObject) { |
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62 | 62 | if (State == ExecutionState.Running) { |
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63 | 63 | m_pending = Safe.CreateTask(m_cancellation.Token); |
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64 | 64 | m_poll = m_pending.Then(() => Poll(m_cancellation.Token)); |
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65 | 65 | m_timer.Change(timeout, Timeout.Infinite); |
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66 | 66 | } |
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67 | 67 | } |
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68 | 68 | } |
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69 | 69 | |
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70 | 70 | async void OnTimer(object state) { |
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71 | 71 | try { |
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72 | 72 | m_pending.Start(); |
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73 | 73 | await m_poll; |
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74 | ScheduleNextPoll(Interval); | |
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74 | 75 | } catch (Exception e) { |
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75 | 76 | UnhandledException.DispatchEvent(this, new UnhandledExceptionEventArgs(e, false)); |
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77 | ||
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76 | 78 | if (FailOnError) |
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77 | 79 | Fail(e); |
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80 | else | |
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81 | ScheduleNextPoll(Interval); | |
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78 | 82 | } |
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79 | ScheduleNextPoll(Interval); | |
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83 | ||
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80 | 84 | } |
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81 | 85 | |
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82 | 86 | protected override void Dispose(bool disposing) { |
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83 | 87 | if (disposing) |
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84 | 88 | Safe.Dispose(m_timer, m_cancellation); |
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85 | 89 | base.Dispose(disposing); |
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86 | 90 | } |
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87 | 91 | |
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88 | 92 | } |
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89 | 93 | } No newline at end of file |
@@ -1,331 +1,332 | |||
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1 | 1 | using System; |
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2 | 2 | using System.Diagnostics; |
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3 | 3 | using System.Threading; |
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4 | 4 | using System.Threading.Tasks; |
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5 | 5 | |
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6 | 6 | namespace Implab.Components { |
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7 | 7 | /// <summary> |
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8 | 8 | /// Base class for implementing components which support start and stop operations, |
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9 | 9 | /// such components may represent running services. |
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10 | 10 | /// </summary> |
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11 | 11 | /// <remarks> |
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12 | 12 | /// This class provides a basic lifecycle from the creation to the |
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13 | 13 | /// termination of the component. |
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14 | 14 | /// </remarks> |
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15 | 15 | public abstract class RunnableComponent : IAsyncComponent, IRunnable, IInitializable, IDisposable { |
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16 | 16 | |
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17 | 17 | /// <summary> |
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18 | 18 | /// This class bounds <see cref="CancellationTokenSource"/> lifetime to the task, |
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19 | 19 | /// when the task completes the associated token source will be disposed. |
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20 | 20 | /// </summary> |
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21 | 21 | class AsyncOperationDescriptor { |
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22 | 22 | |
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23 | 23 | public static AsyncOperationDescriptor None { get; } = new AsyncOperationDescriptor(); |
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24 | 24 | |
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25 | 25 | readonly CancellationTokenSource m_cts; |
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26 | 26 | |
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27 | 27 | bool m_done; |
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28 | 28 | |
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29 | 29 | public CancellationToken Token { |
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30 | 30 | get { return m_cts == null ? CancellationToken.None : m_cts.Token; } |
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31 | 31 | } |
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32 | 32 | |
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33 | 33 | public Task Task { get; private set; } |
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34 | 34 | |
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35 | 35 | private AsyncOperationDescriptor(Task task, CancellationTokenSource cts) { |
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36 | 36 | m_cts = cts; |
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37 | 37 | Task = Chain(task); |
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38 | 38 | } |
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39 | 39 | |
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40 | 40 | private AsyncOperationDescriptor() { |
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41 | 41 | Task = Task.CompletedTask; |
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42 | 42 | } |
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43 | 43 | |
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44 | 44 | public void Cancel() { |
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45 | 45 | if (m_cts != null) { |
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46 | 46 | lock (m_cts) { |
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47 | 47 | if (!m_done) |
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48 | 48 | m_cts.Cancel(); |
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49 | 49 | } |
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50 | 50 | } |
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51 | 51 | } |
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52 | 52 | |
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53 | 53 | void Done() { |
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54 | 54 | if (m_cts != null) { |
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55 | 55 | lock (m_cts) { |
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56 | 56 | m_done = true; |
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57 | 57 | m_cts.Dispose(); |
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58 | 58 | } |
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59 | 59 | } else { |
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60 | 60 | m_done = true; |
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61 | 61 | } |
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62 | 62 | } |
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63 | 63 | |
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64 | 64 | async Task Chain(Task other) { |
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65 | 65 | try { |
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66 | 66 | await other; |
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67 | 67 | } finally { |
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68 | 68 | Done(); |
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69 | 69 | } |
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70 | 70 | } |
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71 | 71 | |
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72 | 72 | public static AsyncOperationDescriptor Create(Func<CancellationToken, Task> factory, CancellationToken ct) { |
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73 | 73 | var cts = ct.CanBeCanceled ? |
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74 | 74 | CancellationTokenSource.CreateLinkedTokenSource(ct) : |
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75 | 75 | new CancellationTokenSource(); |
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76 | 76 | |
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77 | 77 | return new AsyncOperationDescriptor(factory(cts.Token), cts); |
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78 | 78 | } |
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79 | 79 | |
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80 | 80 | } |
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81 | 81 | |
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82 | 82 | // this lock is used to synchronize state flow of the component during |
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83 | 83 | // processing calls from a client and internal processes. |
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84 | 84 | readonly object m_lock = new object(); |
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85 | 85 | |
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86 | 86 | // current operation cookie, used to check wheather a call to |
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87 | 87 | // MoveSuccess/MoveFailed method belongs to the current |
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88 | 88 | // operation, if cookies didn't match ignore completion result. |
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89 | 89 | object m_cookie; |
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90 | 90 | |
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91 | 91 | // AsyncOperationDscriptor aggregates a task and it's cancellation token |
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92 | 92 | AsyncOperationDescriptor m_current = AsyncOperationDescriptor.None; |
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93 | 93 | |
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94 | 94 | ExecutionState m_state; |
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95 | 95 | |
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96 | 96 | /// <summary> |
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97 | 97 | /// Объект синхронизации используется для обеспечения совместного доступа |
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98 | 98 | /// клиента компоненты и процессов, протекающих внутри компоненты, к общему |
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99 | 99 | /// состоянию, т.е.true таким свойствам, как <see cref="State"/>, |
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100 | 100 | /// <see cref="LastError"/>. Обработчики события <see cref="StateChanged"/> |
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101 | 101 | /// вызываются уже с установленной блокировкой, поэтому дополнительная |
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102 | 102 | /// синхронизация не требуется. |
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103 | 103 | /// </summary> |
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104 | 104 | public object SynchronizationObject { get { return m_lock; } } |
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105 | 105 | |
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106 | 106 | protected RunnableComponent(bool initialized) { |
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107 | 107 | State = initialized ? ExecutionState.Ready : ExecutionState.Created; |
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108 | 108 | } |
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109 | 109 | |
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110 | 110 | public Task Completion { |
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111 | 111 | get { return m_current.Task; } |
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112 | 112 | } |
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113 | 113 | |
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114 | 114 | public ExecutionState State { |
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115 | 115 | get { return m_state; } |
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116 | 116 | private set { |
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117 | 117 | if (m_state != value) { |
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118 | 118 | m_state = value; |
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119 | 119 | StateChanged.DispatchEvent(this, new StateChangeEventArgs { |
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120 | 120 | State = value, |
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121 | 121 | LastError = LastError |
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122 | 122 | }); |
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123 | 123 | } |
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124 | 124 | } |
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125 | 125 | } |
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126 | 126 | |
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127 | 127 | public Exception LastError { get; private set; } |
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128 | 128 | |
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129 | 129 | /// <summary> |
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130 | 130 | /// Событие изменения состояния компоненты.see Обработчики данного события |
|
131 | 131 | /// вызываются внутри блокировки <see cref="SynchronizationObject"/> и должны |
|
132 | 132 | /// выполняться максимально быстро. |
|
133 | 133 | /// </summary> |
|
134 | 134 | public event EventHandler<StateChangeEventArgs> StateChanged; |
|
135 | 135 | |
|
136 | 136 | /// <summary> |
|
137 | 137 | /// Releases all resources used by the current component regardless of its |
|
138 | 138 | /// execution state. |
|
139 | 139 | /// </summary> |
|
140 | 140 | /// <remarks> |
|
141 | 141 | /// Calling to this method may result unexpedted results if the component |
|
142 | 142 | /// isn't in the stopped state. Call this method after the component is |
|
143 | 143 | /// stopped if needed or if the component is in the failed state. |
|
144 | 144 | /// </remarks> |
|
145 | 145 | public void Dispose() { |
|
146 | 146 | bool dispose = false; |
|
147 | 147 | lock (SynchronizationObject) { |
|
148 | 148 | if (m_state != ExecutionState.Disposed) { |
|
149 | 149 | dispose = true; |
|
150 | 150 | m_state = ExecutionState.Disposed; |
|
151 | 151 | m_cookie = new object(); |
|
152 | 152 | } |
|
153 | 153 | } |
|
154 | 154 | if (dispose) { |
|
155 | 155 | Dispose(true); |
|
156 | 156 | GC.SuppressFinalize(this); |
|
157 | 157 | } |
|
158 | 158 | } |
|
159 | 159 | |
|
160 | 160 | ~RunnableComponent() { |
|
161 | 161 | Dispose(false); |
|
162 | 162 | } |
|
163 | 163 | |
|
164 | 164 | /// <summary> |
|
165 | 165 | /// Releases all resources used by the current component regardless of its |
|
166 | 166 | /// execution state. |
|
167 | 167 | /// </summary> |
|
168 | 168 | /// <param name="disposing">Indicates that the component is disposed |
|
169 | 169 | /// during a normal disposing or during GC.</param> |
|
170 | 170 | protected virtual void Dispose(bool disposing) { |
|
171 | 171 | } |
|
172 | 172 | |
|
173 | 173 | public void Initialize() { |
|
174 | 174 | var cookie = new object(); |
|
175 | 175 | if (MoveInitialize(cookie)) |
|
176 | 176 | Safe.NoWait(ScheduleTask(InitializeInternalAsync, CancellationToken.None, cookie)); |
|
177 | 177 | else |
|
178 | 178 | throw new InvalidOperationException(); |
|
179 | 179 | } |
|
180 | 180 | |
|
181 | 181 | /// <summary> |
|
182 | 182 | /// This method is used for initialization during a component creation. |
|
183 | 183 | /// </summary> |
|
184 | 184 | /// <param name="ct">A cancellation token for this operation</param> |
|
185 | 185 | /// <remarks> |
|
186 | 186 | /// This method should be used for short and mostly syncronous operations, |
|
187 | 187 | /// other operations which require time to run shoud be placed in |
|
188 | 188 | /// <see cref="StartInternalAsync(CancellationToken)"/> method. |
|
189 | 189 | /// </remarks> |
|
190 | 190 | protected virtual Task InitializeInternalAsync(CancellationToken ct) { |
|
191 | 191 | return Task.CompletedTask; |
|
192 | 192 | } |
|
193 | 193 | |
|
194 | 194 | public void Start(CancellationToken ct) { |
|
195 | 195 | var cookie = new object(); |
|
196 | 196 | if (MoveStart(cookie)) |
|
197 | 197 | Safe.NoWait(ScheduleStartAndRun(ct, cookie)); |
|
198 | 198 | else |
|
199 | 199 | throw new InvalidOperationException(); |
|
200 | 200 | } |
|
201 | 201 | |
|
202 | 202 | async Task ScheduleStartAndRun(CancellationToken ct, object cookie) { |
|
203 | 203 | try { |
|
204 | 204 | await ScheduleTask(StartInternalAsync, ct, cookie); |
|
205 | 205 | RunInternal(); |
|
206 | 206 | } catch (Exception err) { |
|
207 | 207 | Fail(err); |
|
208 | 208 | } |
|
209 | 209 | } |
|
210 | 210 | |
|
211 | 211 | protected virtual Task StartInternalAsync(CancellationToken ct) { |
|
212 | 212 | return Task.CompletedTask; |
|
213 | 213 | } |
|
214 | 214 | |
|
215 | 215 | /// <summary> |
|
216 | 216 | /// This method is called after the component is enetered running state, |
|
217 | 217 | /// use this method to |
|
218 | 218 | /// </summary> |
|
219 | 219 | protected virtual void RunInternal() { |
|
220 | 220 | |
|
221 | 221 | } |
|
222 | 222 | |
|
223 | 223 | public void Stop(CancellationToken ct) { |
|
224 | 224 | var cookie = new object(); |
|
225 | 225 | if (MoveStop(cookie)) |
|
226 | 226 | Safe.NoWait(ScheduleTask(StopAsync, ct, cookie)); |
|
227 | 227 | else |
|
228 | 228 | throw new InvalidOperationException(); |
|
229 | 229 | } |
|
230 | 230 | |
|
231 | 231 | async Task StopAsync(CancellationToken ct) { |
|
232 | 232 | m_current.Cancel(); |
|
233 | 233 | await Completion; |
|
234 | 234 | |
|
235 | 235 | ct.ThrowIfCancellationRequested(); |
|
236 | 236 | |
|
237 | 237 | await StopInternalAsync(ct); |
|
238 | 238 | } |
|
239 | 239 | |
|
240 | 240 | protected virtual Task StopInternalAsync(CancellationToken ct) { |
|
241 | 241 | return Task.CompletedTask; |
|
242 | 242 | } |
|
243 | 243 | |
|
244 | 244 | protected void Fail(Exception err) { |
|
245 | 245 | lock(m_lock) { |
|
246 | 246 | if (m_state != ExecutionState.Running) |
|
247 | 247 | return; |
|
248 | 248 | m_cookie = new object(); |
|
249 | 249 | LastError = err; |
|
250 | 250 | State = ExecutionState.Failed; |
|
251 | 251 | } |
|
252 | 252 | } |
|
253 | 253 | |
|
254 | 254 | |
|
255 | 255 | #region state management |
|
256 | 256 | |
|
257 | 257 | bool MoveInitialize(object cookie) { |
|
258 | 258 | lock (m_lock) { |
|
259 | 259 | if (State != ExecutionState.Created) |
|
260 | 260 | return false; |
|
261 | 261 | State = ExecutionState.Initializing; |
|
262 | 262 | m_cookie = cookie; |
|
263 | 263 | return true; |
|
264 | 264 | } |
|
265 | 265 | } |
|
266 | 266 | |
|
267 | 267 | bool MoveStart(object cookie) { |
|
268 | 268 | lock (m_lock) { |
|
269 | 269 | if (State != ExecutionState.Ready) |
|
270 | 270 | return false; |
|
271 | 271 | State = ExecutionState.Starting; |
|
272 | 272 | m_cookie = cookie; |
|
273 | 273 | return true; |
|
274 | 274 | } |
|
275 | 275 | } |
|
276 | 276 | |
|
277 | 277 | bool MoveStop(object cookie) { |
|
278 | 278 | lock (m_lock) { |
|
279 | 279 | if (State != ExecutionState.Starting && State != ExecutionState.Running) |
|
280 | 280 | return false; |
|
281 | 281 | State = ExecutionState.Stopping; |
|
282 | 282 | m_cookie = cookie; |
|
283 | 283 | return true; |
|
284 | 284 | } |
|
285 | 285 | } |
|
286 | 286 | |
|
287 | 287 | void MoveSuccess(object cookie) { |
|
288 | 288 | lock (m_lock) { |
|
289 | 289 | if (m_cookie != cookie) |
|
290 | 290 | return; |
|
291 | 291 | switch (State) { |
|
292 | 292 | case ExecutionState.Initializing: |
|
293 | 293 | State = ExecutionState.Ready; |
|
294 | 294 | break; |
|
295 | 295 | case ExecutionState.Starting: |
|
296 | 296 | State = ExecutionState.Running; |
|
297 | 297 | break; |
|
298 | 298 | case ExecutionState.Stopping: |
|
299 | 299 | State = ExecutionState.Stopped; |
|
300 | 300 | break; |
|
301 | 301 | } |
|
302 | 302 | } |
|
303 | 303 | } |
|
304 | 304 | |
|
305 | 305 | void MoveFailed(Exception err, object cookie) { |
|
306 | 306 | lock (m_lock) { |
|
307 | 307 | if (m_cookie != cookie) |
|
308 | 308 | return; |
|
309 | 309 | LastError = err; |
|
310 | 310 | State = ExecutionState.Failed; |
|
311 | 311 | } |
|
312 | 312 | } |
|
313 | 313 | |
|
314 | 314 | Task ScheduleTask(Func<CancellationToken, Task> next, CancellationToken ct, object cookie) { |
|
315 | 315 | |
|
316 | 316 | var op = AsyncOperationDescriptor.Create(async (x) => { |
|
317 | 317 | try { |
|
318 | 318 | await next(x); |
|
319 | 319 | MoveSuccess(cookie); |
|
320 | 320 | } catch (Exception e) { |
|
321 | 321 | MoveFailed(e, cookie); |
|
322 | throw; | |
|
322 | 323 | } |
|
323 | 324 | }, ct); |
|
324 | 325 | |
|
325 | 326 | m_current = op; |
|
326 | 327 | return op.Task; |
|
327 | 328 | } |
|
328 | 329 | |
|
329 | 330 | #endregion |
|
330 | 331 | } |
|
331 | 332 | } No newline at end of file |
@@ -1,64 +1,64 | |||
|
1 | 1 | using System; |
|
2 | 2 | using System.Diagnostics; |
|
3 | 3 | using System.Threading.Tasks; |
|
4 | 4 | |
|
5 | 5 | namespace Implab { |
|
6 | 6 | /// <summary> |
|
7 | 7 | /// This class is responsible for the promise resolution, dispatching and chaining |
|
8 | 8 | /// </summary> |
|
9 | 9 | public class Deferred : IResolvable { |
|
10 | 10 | |
|
11 | 11 | readonly Promise m_promise; |
|
12 | 12 | internal Deferred() { |
|
13 | 13 | m_promise = new Promise(); |
|
14 | 14 | } |
|
15 | 15 | |
|
16 |
internal Deferred(Promise promise |
|
|
16 | internal Deferred(Promise promise) { | |
|
17 | 17 | Debug.Assert(promise != null); |
|
18 | 18 | m_promise = promise; |
|
19 | 19 | } |
|
20 | 20 | |
|
21 | 21 | public IPromise Promise { |
|
22 | 22 | get { return m_promise; } |
|
23 | 23 | } |
|
24 | 24 | |
|
25 | 25 | public void Cancel() { |
|
26 | 26 | Reject(new OperationCanceledException()); |
|
27 | 27 | } |
|
28 | 28 | |
|
29 | 29 | public virtual void Reject(Exception error) { |
|
30 | 30 | if (error is PromiseTransientException) |
|
31 | 31 | error = ((PromiseTransientException)error).InnerException; |
|
32 | 32 | |
|
33 | 33 | m_promise.RejectPromise(error); |
|
34 | 34 | } |
|
35 | 35 | |
|
36 | 36 | public virtual void Resolve() { |
|
37 | 37 | m_promise.ResolvePromise(); |
|
38 | 38 | } |
|
39 | 39 | |
|
40 | 40 | public virtual void Resolve(IPromise thenable) { |
|
41 | 41 | if (thenable == null) |
|
42 | 42 | Reject(new Exception("The promise or task are expected")); |
|
43 | 43 | if (thenable == m_promise) |
|
44 | 44 | Reject(new Exception("The promise cannot be resolved with oneself")); |
|
45 | 45 | |
|
46 | 46 | try { |
|
47 | 47 | thenable.Then(this); |
|
48 | 48 | } catch (Exception err) { |
|
49 | 49 | Reject(err); |
|
50 | 50 | } |
|
51 | 51 | } |
|
52 | 52 | |
|
53 | 53 | public virtual void Resolve(Task thenable) { |
|
54 | 54 | if (thenable == null) |
|
55 | 55 | Reject(new Exception("The promise or task are expected")); |
|
56 | 56 | try { |
|
57 | 57 | thenable.Then(this); |
|
58 | 58 | } catch(Exception err) { |
|
59 | 59 | Reject(err); |
|
60 | 60 | } |
|
61 | 61 | } |
|
62 | 62 | |
|
63 | 63 | } |
|
64 | 64 | } No newline at end of file |
@@ -1,19 +1,22 | |||
|
1 | 1 | <Project Sdk="Microsoft.NET.Sdk"> |
|
2 | 2 | |
|
3 | 3 | <PropertyGroup> |
|
4 | 4 | <Authors>Sergey Smirnov</Authors> |
|
5 | 5 | <Title>Implab library</Title> |
|
6 | 6 | <Description>Provides some helper clesses like XML serialization helpers, JSON XML reader, |
|
7 | 7 | JSON pull-parser, ECMA-style promises, lightweight synchonization routines Signal |
|
8 | 8 | and SharedLock, Trace helpers on top of System.Diagnostics, ObjectPool etc. |
|
9 | 9 | </Description> |
|
10 | 10 | <Copyright>2012-2018 Sergey Smirnov</Copyright> |
|
11 | <LicenseUrl>https://opensource.org/licenses/BSD-2-Clause</LicenseUrl> | |
|
12 | <ProjectUrl>https://implab.org</ProjectUrl> | |
|
11 | <Version>3.0.6</Version> | |
|
12 | <PackageLicenseUrl>https://opensource.org/licenses/BSD-2-Clause</PackageLicenseUrl> | |
|
13 | <PackageProjectUrl>https://implab.org</PackageProjectUrl> | |
|
13 | 14 | <RepositoryUrl>https://hg.implab.org/pub/ImplabNet/</RepositoryUrl> |
|
15 | <RepositoryType>mercurial</RepositoryType> | |
|
16 | <PackageTags>IMPLAB;Json pull-parser;Json Xml;async;diagnostics;serialization;</PackageTags> | |
|
14 | 17 | <TargetFrameworks>netstandard2.0;net46</TargetFrameworks> |
|
15 | 18 | <FrameworkPathOverride Condition="'$(TargetFramework)'=='net46' and '$(OSTYPE)'=='linux'">/usr/lib/mono/4.5/</FrameworkPathOverride> |
|
16 | 19 | <DefineConstants Condition="'$(TargetFramework)'=='net46'">NETFX_TRACE_BUG;$(DefineConstants)</DefineConstants> |
|
17 | 20 | </PropertyGroup> |
|
18 | 21 | |
|
19 | 22 | </Project> |
@@ -1,208 +1,222 | |||
|
1 | 1 | using System; |
|
2 | 2 | using System.Collections.Generic; |
|
3 | 3 | using System.Diagnostics; |
|
4 | 4 | using System.Reflection; |
|
5 | using System.Threading; | |
|
5 | 6 | using System.Threading.Tasks; |
|
6 | 7 | using Implab.Parallels; |
|
7 | 8 | |
|
8 | 9 | namespace Implab { |
|
9 | 10 | public class Promise : AbstractEvent<IResolvable>, IPromise { |
|
10 | 11 | public static IDispatcher DefaultDispatcher { |
|
11 | 12 | get { |
|
12 | 13 | return ThreadPoolDispatcher.Instance; |
|
13 | 14 | } |
|
14 | 15 | } |
|
15 | 16 | |
|
16 | 17 | class ResolvableSignal : IResolvable { |
|
17 | 18 | public Signal Signal { get; private set; } |
|
18 | 19 | public ResolvableSignal() { |
|
19 | 20 | Signal = new Signal(); |
|
20 | 21 | } |
|
21 | 22 | |
|
22 | 23 | |
|
23 | 24 | public void Reject(Exception error) { |
|
24 | 25 | Signal.Set(); |
|
25 | 26 | } |
|
26 | 27 | |
|
27 | 28 | public void Resolve() { |
|
28 | 29 | Signal.Set(); |
|
29 | 30 | } |
|
30 | 31 | } |
|
31 | 32 | |
|
32 | 33 | PromiseState m_state; |
|
33 | 34 | |
|
34 | 35 | Exception m_error; |
|
35 | 36 | |
|
36 | 37 | public bool IsRejected { |
|
37 | 38 | get { |
|
38 | 39 | return m_state == PromiseState.Rejected; |
|
39 | 40 | } |
|
40 | 41 | } |
|
41 | 42 | |
|
42 | 43 | public bool IsFulfilled { |
|
43 | 44 | get { |
|
44 | 45 | return m_state == PromiseState.Fulfilled; |
|
45 | 46 | } |
|
46 | 47 | } |
|
47 | 48 | |
|
48 | 49 | public Exception RejectReason { |
|
49 | 50 | get { |
|
50 | 51 | return m_error; |
|
51 | 52 | } |
|
52 | 53 | } |
|
53 | 54 | |
|
54 | 55 | internal Promise() { |
|
55 | 56 | |
|
56 | 57 | } |
|
57 | 58 | |
|
58 | 59 | internal void ResolvePromise() { |
|
59 | 60 | if (BeginTransit()) { |
|
60 | 61 | m_state = PromiseState.Fulfilled; |
|
61 | 62 | CompleteTransit(); |
|
62 | 63 | } |
|
63 | 64 | } |
|
64 | 65 | |
|
65 | 66 | internal void RejectPromise(Exception reason) { |
|
66 | 67 | if (BeginTransit()) { |
|
67 | 68 | m_error = reason; |
|
68 | 69 | m_state = PromiseState.Rejected; |
|
69 | 70 | CompleteTransit(); |
|
70 | 71 | } |
|
71 | 72 | } |
|
72 | 73 | |
|
73 | 74 | |
|
74 | 75 | #region implemented abstract members of AbstractPromise |
|
75 | 76 | |
|
76 | 77 | protected override void SignalHandler(IResolvable handler) { |
|
77 | 78 | switch (m_state) { |
|
78 | 79 | case PromiseState.Fulfilled: |
|
79 | 80 | handler.Resolve(); |
|
80 | 81 | break; |
|
81 | 82 | case PromiseState.Rejected: |
|
82 | 83 | handler.Reject(RejectReason); |
|
83 | 84 | break; |
|
84 | 85 | default: |
|
85 | 86 | throw new InvalidOperationException(String.Format("Invalid promise signal: {0}", m_state)); |
|
86 | 87 | } |
|
87 | 88 | } |
|
88 | 89 | |
|
89 | 90 | protected void WaitResult(int timeout) { |
|
90 | 91 | if (!(IsResolved || GetFulfillSignal().Wait(timeout))) |
|
91 | 92 | throw new TimeoutException(); |
|
92 | 93 | } |
|
93 | 94 | |
|
94 | 95 | protected Signal GetFulfillSignal() { |
|
95 | 96 | var next = new ResolvableSignal(); |
|
96 | 97 | Then(next); |
|
97 | 98 | return next.Signal; |
|
98 | 99 | } |
|
99 | 100 | |
|
100 | 101 | #endregion |
|
101 | 102 | |
|
102 | 103 | |
|
103 | 104 | public Type ResultType { |
|
104 | 105 | get { |
|
105 | 106 | return typeof(void); |
|
106 | 107 | } |
|
107 | 108 | } |
|
108 | 109 | |
|
109 | 110 | |
|
110 | 111 | protected void Rethrow() { |
|
111 | 112 | Debug.Assert(m_error != null); |
|
112 | 113 | if (m_error is OperationCanceledException) |
|
113 | 114 | throw new OperationCanceledException("Operation cancelled", m_error); |
|
114 | 115 | else |
|
115 | 116 | throw new TargetInvocationException(m_error); |
|
116 | 117 | } |
|
117 | 118 | |
|
118 | 119 | public void Then(IResolvable next) { |
|
119 | 120 | AddHandler(next); |
|
120 | 121 | } |
|
121 | 122 | |
|
122 | 123 | public IPromise<T> Cast<T>() { |
|
123 | 124 | throw new InvalidCastException(); |
|
124 | 125 | } |
|
125 | 126 | |
|
126 | 127 | public void Join() { |
|
127 | 128 | WaitResult(-1); |
|
128 | 129 | if (IsRejected) |
|
129 | 130 | Rethrow(); |
|
130 | 131 | } |
|
131 | 132 | |
|
132 | 133 | public void Join(int timeout) { |
|
133 | 134 | WaitResult(timeout); |
|
134 | 135 | if (IsRejected) |
|
135 | 136 | Rethrow(); |
|
136 | 137 | } |
|
137 | 138 | |
|
138 | 139 | public static ResolvedPromise Resolve() { |
|
139 | 140 | return new ResolvedPromise(); |
|
140 | 141 | } |
|
141 | 142 | |
|
142 | 143 | public static ResolvedPromise<T> Resolve<T>(T result) { |
|
143 | 144 | return new ResolvedPromise<T>(result); |
|
144 | 145 | } |
|
145 | 146 | |
|
146 | 147 | public static RejectedPromise Reject(Exception reason) { |
|
147 | 148 | return new RejectedPromise(reason); |
|
148 | 149 | } |
|
149 | 150 | |
|
150 | 151 | public static RejectedPromise<T> Reject<T>(Exception reason) { |
|
151 | 152 | return new RejectedPromise<T>(reason); |
|
152 | 153 | } |
|
153 | 154 | |
|
154 | 155 | public static IPromise Create(PromiseExecutor executor) { |
|
155 | Safe.ArgumentNotNull(executor, nameof(executor)); | |
|
156 | return Create(executor, CancellationToken.None); | |
|
157 | } | |
|
156 | 158 | |
|
157 | var p = new Promise(); | |
|
158 | var d = new Deferred(p, DefaultDispatcher); | |
|
159 | ||
|
159 | public static IPromise Create(PromiseExecutor executor, CancellationToken ct) { | |
|
160 | Safe.ArgumentNotNull(executor, nameof(executor)); | |
|
161 | if (!ct.CanBeCanceled) | |
|
162 | return Create(executor); | |
|
163 | ||
|
164 | var d = new Deferred(); | |
|
165 | ||
|
166 | ct.Register(d.Cancel); | |
|
167 | ||
|
160 | 168 | try { |
|
161 | executor(d); | |
|
162 | } catch (Exception e) { | |
|
169 | if (!ct.IsCancellationRequested) | |
|
170 | executor(d); | |
|
171 | } catch(Exception e) { | |
|
163 | 172 | d.Reject(e); |
|
164 | 173 | } |
|
165 | ||
|
166 | 174 | return d.Promise; |
|
167 | 175 | } |
|
168 | 176 | |
|
169 | 177 | public static IPromise<T> Create<T>(PromiseExecutor<T> executor) { |
|
178 | return Create(executor, CancellationToken.None); | |
|
179 | } | |
|
180 | ||
|
181 | public static IPromise<T> Create<T>(PromiseExecutor<T> executor, CancellationToken ct) { | |
|
170 | 182 | Safe.ArgumentNotNull(executor, nameof(executor)); |
|
171 | 183 | |
|
172 | 184 | var d = new Deferred<T>(); |
|
173 | ||
|
185 | ||
|
186 | ct.Register(d.Cancel); | |
|
187 | ||
|
174 | 188 | try { |
|
175 | executor(d); | |
|
176 | } catch (Exception e) { | |
|
189 | if (!ct.IsCancellationRequested) | |
|
190 | executor(d); | |
|
191 | } catch(Exception e) { | |
|
177 | 192 | d.Reject(e); |
|
178 | 193 | } |
|
179 | ||
|
180 | 194 | return d.Promise; |
|
181 | 195 | } |
|
182 | 196 | |
|
183 | 197 | public static IPromise All(IEnumerable<IPromise> promises) { |
|
184 | 198 | var d = new Deferred(); |
|
185 | 199 | var all = new PromiseAll(d); |
|
186 | 200 | foreach (var promise in promises) { |
|
187 | 201 | all.AddPromise(promise); |
|
188 | 202 | if (all.Done) |
|
189 | 203 | break; |
|
190 | 204 | } |
|
191 | 205 | all.Complete(); |
|
192 | 206 | return all.ResultPromise; |
|
193 | 207 | } |
|
194 | 208 | |
|
195 | 209 | public static IPromise<T[]> All<T>(IEnumerable<IPromise<T>> promises, Func<T, IPromise> cleanup = null, Action cancel = null) { |
|
196 | 210 | var d = new Deferred<T[]>(); |
|
197 | 211 | var all = new PromiseAll<T>(d, cleanup, cancel); |
|
198 | 212 | foreach (var promise in promises) { |
|
199 | 213 | all.AddPromise(promise); |
|
200 | 214 | if (all.Done) |
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201 | 215 | break; |
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202 | 216 | } |
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203 | 217 | all.Complete(); |
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204 | 218 | return all.ResultPromise; |
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205 | 219 | } |
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206 | 220 | } |
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207 | 221 | } |
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208 | 222 |
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1 | NO CONTENT: file was removed |
General Comments 3
ok, latest stable version should be in default
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