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| Microsoft Visual Studio Solution File, Format Version 12.00 | ||
| # Visual Studio Version 17 | ||
| VisualStudioVersion = 17.4.33122.133 | ||
| MinimumVisualStudioVersion = 10.0.40219.1 | ||
| Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Client", "Client\Client.csproj", "{BBF1199A-46A4-4AE9-AFFE-4D8DD59EB874}" | ||
| EndProject | ||
| Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Server", "Server\Server.csproj", "{527EEA4D-77B9-4252-A2CD-C641A25CAD53}" | ||
| EndProject | ||
| Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{FBDAF448-665A-4595-98D3-4538C56A666D}" | ||
| ProjectSection(SolutionItems) = preProject | ||
| README.md = README.md | ||
| EndProjectSection | ||
| EndProject | ||
| Global | ||
| GlobalSection(SolutionConfigurationPlatforms) = preSolution | ||
| Debug|Any CPU = Debug|Any CPU | ||
| Release|Any CPU = Release|Any CPU | ||
| EndGlobalSection | ||
| GlobalSection(ProjectConfigurationPlatforms) = postSolution | ||
| {BBF1199A-46A4-4AE9-AFFE-4D8DD59EB874}.Debug|Any CPU.ActiveCfg = Debug|Any CPU | ||
| {BBF1199A-46A4-4AE9-AFFE-4D8DD59EB874}.Debug|Any CPU.Build.0 = Debug|Any CPU | ||
| {BBF1199A-46A4-4AE9-AFFE-4D8DD59EB874}.Release|Any CPU.ActiveCfg = Release|Any CPU | ||
| {BBF1199A-46A4-4AE9-AFFE-4D8DD59EB874}.Release|Any CPU.Build.0 = Release|Any CPU | ||
| {527EEA4D-77B9-4252-A2CD-C641A25CAD53}.Debug|Any CPU.ActiveCfg = Debug|Any CPU | ||
| {527EEA4D-77B9-4252-A2CD-C641A25CAD53}.Debug|Any CPU.Build.0 = Debug|Any CPU | ||
| {527EEA4D-77B9-4252-A2CD-C641A25CAD53}.Release|Any CPU.ActiveCfg = Release|Any CPU | ||
| EndGlobalSection | ||
| GlobalSection(SolutionProperties) = preSolution | ||
| HideSolutionNode = FALSE | ||
| EndGlobalSection | ||
| GlobalSection(ExtensibilityGlobals) = postSolution | ||
| SolutionGuid = {0B36F1E1-0592-4A15-9981-67BC4A653EC4} | ||
| EndGlobalSection | ||
| EndGlobal |
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| <?xml version="1.0" encoding="utf-8" ?> | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <OutputType>Exe</OutputType> | ||
| <Nullable>enable</Nullable> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <!-- Copy the PDBs from the NuGet packages to get file names and line numbers in stack traces. --> | ||
| <CopyDebugSymbolFilesFromPackages>true</CopyDebugSymbolFilesFromPackages> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <SliceCompile Include="../slice/AlarmClock.ice" /> | ||
| <PackageReference Include="zeroc.ice.net" Version="3.8.0-alpha0" /> | ||
| <PackageReference Include="zeroc.icebuilder.msbuild" Version="5.0.9" /> | ||
| <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556"> | ||
| <PrivateAssets>all</PrivateAssets> | ||
| <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> | ||
| </PackageReference> | ||
| </ItemGroup> | ||
| </Project> |
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| // Copyright (c) ZeroC, Inc. | ||
|
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| using EarlyRiser; | ||
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| namespace Client; | ||
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| /// <summary>MockAlarmClock is an Ice servant that implements Slice interface AlarmClock.</summary> | ||
| internal class MockAlarmClock : AlarmClockDisp_ | ||
| { | ||
| /// <summary>Gets a task that completes when we return <see cref="ButtonPressed.Stop" /> from <see cref="Ring" />. | ||
| /// </summary> | ||
| public Task StopPressed => _tcs.Task; | ||
|
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| // RunContinuationsAsynchronously because we don't want to continue Main in an Ice thread pool thread. | ||
| private readonly TaskCompletionSource _tcs = new(TaskCreationOptions.RunContinuationsAsynchronously); | ||
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| private bool _needMoreTime = true; | ||
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| /// <inheritdoc/> | ||
| // Implements the abstract method Ring from the AlarmClockDisp_ class generated by the Slice compiler. | ||
| public override ButtonPressed Ring(string message, Ice.Current current) | ||
| { | ||
| Console.WriteLine($"Dispatching ring request {{ message = '{message}' }}"); | ||
| if (_needMoreTime) | ||
| { | ||
| Console.WriteLine($"Returning {ButtonPressed.Snooze} to request more time."); | ||
| _needMoreTime = false; // we only snooze one time | ||
| return ButtonPressed.Snooze; | ||
| } | ||
| else | ||
| { | ||
| _tcs.TrySetResult(); | ||
| Console.WriteLine($"Returning {ButtonPressed.Stop} to stop the alarm."); | ||
| return ButtonPressed.Stop; | ||
| } | ||
| } | ||
| } |
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| // Copyright (c) ZeroC, Inc. | ||
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| // Slice module EarlyRiser in AlarmClock.ice maps to C# namespace EarlyRiser. | ||
| using EarlyRiser; | ||
|
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| // Create an Ice communicator to initialize the Ice runtime. | ||
| using Ice.Communicator communicator = Ice.Util.initialize(ref args); | ||
|
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| // Create an object adapter with no name and no configuration. This object adapter does not need to be activated. | ||
| Ice.ObjectAdapter adapter = communicator.createObjectAdapter(""); | ||
|
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| // Sets this object adapter as the default object adapter on the communicator. | ||
| communicator.setDefaultObjectAdapter(adapter); | ||
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| // Register the MockAlarmClock servant with the adapter. The wake up service knows we use identity "alarmClock". | ||
| var mockAlarmClock = new Client.MockAlarmClock(); | ||
| adapter.add(mockAlarmClock, Ice.Util.stringToIdentity("alarmClock")); | ||
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| // Create a proxy to the wake-up service. | ||
| WakeUpServicePrx wakeUpService = WakeUpServicePrxHelper.createProxy( | ||
| communicator, | ||
| "wakeUpService:tcp -h localhost -p 4061"); | ||
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| // Schedule a wake-up call in 5 seconds. This call establishes the connection to the server; incoming requests over this | ||
| // connection are handled by the communicator's default object adapter. | ||
| await wakeUpService.WakeMeUpAsync(DateTime.Now.AddSeconds(5).ToUniversalTime().Ticks); | ||
| Console.WriteLine("Wake-up call scheduled, falling asleep..."); | ||
|
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| // Wait until the "stop" button is pressed on the mock alarm clock. | ||
| await mockAlarmClock.StopPressed; | ||
| Console.WriteLine("Stop button pressed, exiting..."); |
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| # Bidir | ||
|
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| The Bidir demo illustrates how to send requests "the other way around", from a server to a client, by reusing the | ||
| connection established by the client to the server. | ||
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| This demo is very similar to the [../Callback] demo: with the Callback demo, the server opens a connection to the | ||
| client, while with this demo, there is only one connection, from the client to the server: | ||
|
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| ```mermaid | ||
| flowchart LR | ||
| c[Client<br>hosts AlarmClock] --bidir connection--> s[Server:4061<br>hosts WakeUpService] | ||
| ``` | ||
|
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| This is particularly useful when the client application is behind a firewall that does not allow incoming connections. | ||
|
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| You can build the client and server applications with: | ||
|
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| ``` shell | ||
| dotnet build | ||
| ``` | ||
|
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| First start the Server program: | ||
|
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| ```shell | ||
| cd Server | ||
| dotnet run | ||
| ``` | ||
|
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| In a separate terminal, start the Client program: | ||
|
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| ```shell | ||
| cd Client | ||
| dotnet run | ||
| ``` |
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| // Copyright (c) ZeroC, Inc. | ||
|
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| using EarlyRiser; | ||
|
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| namespace Server; | ||
|
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| /// <summary>BidirWakeUpService is an Ice servant that implements Slice interface WakeUpService.</summary> | ||
| internal class BidirWakeUpService : WakeUpServiceDisp_ | ||
| { | ||
| /// <inheritdoc/> | ||
| // Implements the abstract method WakeMeUp from the WakeUpServiceDisp_ class generated by the Slice compiler. | ||
| public override void WakeMeUp(long timeStamp, Ice.Current current) | ||
| { | ||
| var timeStampDateTime = new DateTime(timeStamp, DateTimeKind.Utc); | ||
| Console.WriteLine($"Dispatching wakeMeUp request {{ timeStamp = '{timeStampDateTime.ToLocalTime()}' }}"); | ||
|
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| Ice.Connection? connection = current.con; // The connection from the client to the server. | ||
| if (connection is null) | ||
| { | ||
| // Should never happen, but in case it does, the Ice runtime transmits this exception as an | ||
| // Ice.UnknownException. | ||
| throw new NotImplementedException("BidirWakeUpService does not support collocated calls"); | ||
| } | ||
|
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| // Create a proxy to the client's alarm clock. This connection-bound proxy is called a "fixed proxy". | ||
| AlarmClockPrx alarmClock = AlarmClockPrxHelper.uncheckedCast( | ||
| connection.createProxy(Ice.Util.stringToIdentity("alarmClock"))); | ||
|
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| // Start a background task to ring the alarm clock. | ||
| _ = Task.Run(async () => | ||
| { | ||
| // Wait until the specified time. | ||
| TimeSpan delay = timeStampDateTime - DateTime.UtcNow; | ||
| if (delay > TimeSpan.Zero) | ||
| { | ||
| await Task.Delay(delay); | ||
| } | ||
|
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| // First ring. This invocation reuses the connection established by the client. | ||
| ButtonPressed buttonPressed = await alarmClock.RingAsync("It's time to wake up!"); | ||
|
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| // Keep ringing every 10 seconds until the user presses the stop button. | ||
| while (buttonPressed is ButtonPressed.Snooze) | ||
| { | ||
| await Task.Delay(TimeSpan.FromSeconds(10)); | ||
| buttonPressed = await alarmClock.RingAsync("No more snoozing!"); | ||
| } | ||
| }); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // Copyright (c) ZeroC, Inc. | ||
|
|
||
| // Create an Ice communicator to initialize the Ice runtime. | ||
| using Ice.Communicator communicator = Ice.Util.initialize(ref args); | ||
|
|
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| // Create an object adapter that listens for incoming requests and dispatches them to servants. | ||
| Ice.ObjectAdapter adapter = communicator.createObjectAdapterWithEndpoints("WakeUpAdapter", "tcp -p 4061"); | ||
|
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| // Register the BidirWakeUpService servant with the adapter. | ||
| adapter.add(new Server.BidirWakeUpService(), Ice.Util.stringToIdentity("wakeUpService")); | ||
|
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| // Start dispatching requests. | ||
| adapter.activate(); | ||
| Console.WriteLine("Listening on port 4061..."); | ||
|
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| // Wait until the user presses Ctrl+C. | ||
| await CancelKeyPressed; | ||
| Console.WriteLine("Caught Ctrl+C, exiting..."); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| <?xml version="1.0" encoding="utf-8" ?> | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <OutputType>Exe</OutputType> | ||
| <Nullable>enable</Nullable> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <!-- Copy the PDBs from the NuGet packages to get file names and line numbers in stack traces. --> | ||
| <CopyDebugSymbolFilesFromPackages>true</CopyDebugSymbolFilesFromPackages> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <SliceCompile Include="../slice/AlarmClock.ice" /> | ||
| <PackageReference Include="zeroc.ice.net" Version="3.8.0-alpha0" /> | ||
| <PackageReference Include="zeroc.icebuilder.msbuild" Version="5.0.9" /> | ||
| <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556"> | ||
| <PrivateAssets>all</PrivateAssets> | ||
| <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> | ||
| </PackageReference> | ||
| <Compile Include="../../../Common/Program.CancelKeyPressed.cs" Link="Program.CancelKeyPressed.cs" /> | ||
| </ItemGroup> | ||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| // Copyright (c) ZeroC, Inc. | ||
|
|
||
| #pragma once | ||
|
|
||
| module EarlyRiser | ||
| { | ||
| /// Indicates the button pressed when the alarm rang. | ||
| enum ButtonPressed { Snooze, Stop } | ||
|
|
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| /// Represents a simple alarm clock. It's the "callback" in this demo, and it's implemented by the client. | ||
| interface AlarmClock | ||
| { | ||
| /// Rings the alarm clock. | ||
| /// @param message The message to display. | ||
| /// @return The button pressed by the user. | ||
| ["cs:identifier:Ring"] // We prefer PascalCase for C# methods. | ||
| ButtonPressed ring(string message); | ||
| } | ||
|
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| /// Represents the wake up service provided by the server. | ||
| interface WakeUpService | ||
| { | ||
| /// Schedules a call to the caller's {@link AlarmClock::ring} at the specified time. | ||
| /// @param timeStamp The time to ring the alarm clock. It's encoded as the number of ticks (100 nanoseconds) | ||
| /// since January 1, 0001 00:00:00 UTC in the Gregorian calendar. | ||
| ["cs:identifier:WakeMeUp"] // We prefer PascalCase for C# methods. | ||
| void wakeMeUp(long timeStamp); | ||
| } | ||
| } |
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