ktsu.SingleAppInstance

Overview

The SingleAppInstance class provides a mechanism to ensure that only one instance of an application is running at a time. This is useful for applications that should not have multiple instances running simultaneously, such as desktop applications or services.

Features

• Single Instance Enforcement: Ensures that only one instance of the application is running.
• PID File Management: Uses a PID file to track the running instance.
• Race Condition Handling: Handles potential race conditions when starting multiple instances simultaneously.

Installation

To install the ktsu.SingleAppInstance package, run the following command in a console:

dotnet add package ktsu.SingleAppInstance

Getting Started

To get started with ktsu.SingleAppInstance, follow these steps:

1. Install the package using the command above.
2. Add the necessary using directive to your code.
3. Call the ExitIfAlreadyRunning method at the start of your application.

Usage

To use the SingleAppInstance class, call the ExitIfAlreadyRunning method at the start of your application. This method will check if another instance is already running and exit the current instance if so.

using ktsu.SingleAppInstance;

class Program
{
    static void Main(string[] args)
    {
        SingleAppInstance.ExitIfAlreadyRunning();

    // Your application code here
    }
}

Or if you prefer to explicitly handle the case where another instance is already running, you can call the ShouldLaunch() method to check if another instance is running.

using ktsu.SingleAppInstance;

class Program
{
    static void Main(string[] args)
    {
        if (SingleAppInstance.ShouldLaunch())
        {
            // Your application code here
        }
        else
        {
            // Handle the case where another instance is already running
            Console.WriteLine("Another instance is already running.");
            Environment.Exit(1);
        }
    }
}

Methods

ExitIfAlreadyRunning

Exits the application if another instance is already running.

ShouldLaunch

Determines whether the application should launch.

Contributing

Contributions are welcome! Please open an issue or submit a pull request on GitHub.

Support

If you encounter any issues or have questions, please open an issue on GitHub.

License

This project is licensed under the MIT License.