VladV VladV 9, 2 2 gold badges 30 30 silver badges 46 46 bronze badges. You use ServiceInstaller class, see msdn. That's expected - your service would run as a separate process so it would be shown in the task manager , but this process would be controlled by the system e.
If you run it as a console app, you won't see a service. The whole purpose of this code is to enable you to run it either as a console app, or as a service. To run as a service you need to install it first using ServiceInstaller class - see MSDN link above - or installuitil.
ServiceInstaller is just a utility class to deal with Windows services a little bit like installutil. You could use it to install whatever you want as a service, the OS doesn't care about the project type you use. Just add a reference in your project to System. ServiceProcess and you'll be able to use the code above — danimal.
Show 7 more comments. Example: HostFactory. Start ; s. RunAsLocalSystem ; x. SetDescription "Sample Topshelf Host" ; x. SetDisplayName "Stuff" ; x. Hi, i am getting this :- "Could not install package 'Topshelf 4. You are trying to install this package into a project that targets '. Make sure you are targetting the full.
NET 4. Izuagbala myservice. Can myservice. Documentation is not clear: "Once the console application is created, the developer creates a single service class " docs. Add a comment. So here's the complete walkthrough: Create new Console Application project e. MyService Add two library references: System. ServiceProcess and System. Install Add the three files printed below Build the project and run "InstallUtil.
IO; using System. Now, Environment. ComponentModel; using System. Install; using System. LocalSystem; spi. ServiceName; si. Automatic; Installers.
Add spi ; Installers. Nikolai Koudelia Nikolai Koudelia 2, 1 1 gold badge 23 23 silver badges 27 27 bronze badges. If you are compiling your project for 64 bit you have to use the InstallUtil. This works very well, note that as snytek says, if you are using base 64, make sure that you use the correct directory. Also, if you happen to do the same as me and forget to rename the service to something other than "MyService", make sure that you uninstall the service before making the changes to the code.
WindowsServices -Version 3. Abstractions -Version 3. DependencyInjection; using Microsoft. CreateDefaultBuilder args. Hosting; using System. Threading; using System.
MessageLoop Application. Start ; thread. Stop ; thread. Patrick Reynolds Patrick Reynolds 41 1 1 bronze badge. One library assembly that does all the work. With this NuGet installed inside our project, we can change our Main method to initialize a Host, which will initialize it as a Windows Service and run it. The code itself is simpler than it sounds:. We need both, since we want the parsed one and due to the fact that the Host. CreateDefaultBuilder method allows you to pass parameters from the command line to configure it, so we need to pass down the original string array to it.
We start by creating this default builder. We then configure its logging to filter only if the log level is Information or higher, and then we add our hosted service. We also create a singleton with our parsed CommandLineOptions , which allows us to use it inside the ImageClassifierWorker class that is initialized for us by the default builder. We will expect a CommandLineOptions parameter in the constructor of our ImageClassifierWorker which will be automatically injected for us. These parameters let us choose where the Events from our logs will be stored.
Last, but not least, we are initializing this host as a Windows Service. This last step is as easy as calling the UseWindowsService method, which configures the host to use the logging properties we just set, as well as setting up automatic logging for the Windows Service lifetime events.
Since this new code will listen to new files in the directory we specify, we need a way to filter the file extensions we want to allow processing. We could hard-code this, but lets simply add a parameter to our CommandLineOptions class, which will easily handle all the parsing for us:.
See how easy it is to support our list of extensions? Since these are the most commons ones, we support png , jpg , and jpeg , and all the classes we use to load our image handle these extensions, so we are safe with them. Now that you understand the structure of our Program.
This is the class that will run our WinML code. The ExecuteAsync method is going to be called automatically for us, so we need a mechanism to keep it from returning, to keep our process from ending. There are many ways to achieve that, specially since we need to return a Task.
This should be at the very end of our ExecuteAsync method. The stoppingToken is passed down to our ExecuteAsync method, and it is an instance of CancellationToken which will be cancelled when our service is requested to stop. Remember that this code is headless no user interface at all , so we need a way to know what our code is executing, and that is done through logs. At the start of our method, we should load our WinML model, pretty much the same way we were doing before:. This creates a FileSystemWatcher instance that will hook up to some Windows events for us, and automatically raise the Created event whenever there is a new file created on the folder we are watching.
Notice that we are adding Filters to it, which are mapping to the extension filters coming from our new command line argument. We are waiting milliseconds 1 second , before we process the file. The FileSystemWatcher is attached to the Windows events, and is so fast that it will raise the Created event even before the file is closed by whichever process is still creating it. We could have created a retry logic if we caught this specific exception but, again, this solution is a simplification, and will keep our code simple for this sample.
The ProcessFileAsync method expects a full path to an image file and a confidence float, just like we had before. Notice that the folderName argument passed in our MoveFileToFolder method is the label with highest confidence, returned by our WinML classification model for that one specific image. Therefore, we are moving that file inside a folder with its category name.
The whole process is so fast that if you copy and paste an image file into the folder we are watching, it barely stays inside the folder, almost instantaneously being moved to a newly or existing folder. The next step is to 1 deploy this somewhere, 2 register our Windows Service, and 3 start it! The deployment step is very straight forward. This will let you select where you want to publish it, and since this is a simple.
Net Standard version was finally released in September A Topshelf implementation involves implementing an abstract ServiceControl class:. Main method:. The application needs to be built for the windows runtime in much the same way as a native service. This may seem much like building and deploying a native service, but the experience of installing and debugging a Topshelf service is very different — in a good way.
For debugging Topshelf emulates starting the service in a console window, running the service in the background and automatically attaching the debugger. This means you can start a service from within the Visual Studio IDE and have it hit breakpoints much like any other application.
The generic host builder that was added in. Net Core 3. This takes care of the application lifecycle for you, including controlling startup and graceful shutdown, logging, dependency injection and configuration.
You can also get it to run as a Windows Service. With this approach, you create a service definition based on the BackgroundService base class. This class can also be used to execute long-running tasks in ASP. Net applications and it has a single method override as shown below:. To turn this into a Windows Service, you need to add the Microsoft. WindowsServices package which lets you add the UseWindowsService extension method to the host builder:. This gives you a vanilla.
Net console app that can be debugged directly from Visual Studio. From here you need to build the project for the windows ruintime and install the application using sx. This approach feels like a snug fit to the vanilla. Net Core ecosystem.
0コメント