New to all this, little help?

[thehijacker]

I have an old application that fires multiple background processes written in .NET 4.5. Now migrated it to 7.0 and wish to replace the ugly code I had with CliWrap because I am sure it is proper and modern way to do it. But I am stuck with few problems that I had solved with old code, but can not figure out how to do them now.

1. I was using new Process and feed it's StandardOutput and StandardError to a function for further processing. Here I can only figure out how to pass the output and error to console. How to push this to external function for live processing?

2. It is a console application but even a simple sample doesn't work for me. Under main() I fire new background thread that runs a php server and closes it after 5 seconds. Process exits but the task never finishes. Sample code I am using:

Task.Run(async () =>
{
    using var cts = new CancellationTokenSource();
    cts.CancelAfter(TimeSpan.FromSeconds(5));

    var task = Cli.Wrap("/usr/bin/php")
        .WithArguments(["-S", "172.21.63.11:9901", "-t", "/home/t2admin/T2RelayMgmt"])
        .WithStandardErrorPipe(PipeTarget.ToDelegate(Console.WriteLine))
        .WithStandardOutputPipe(PipeTarget.ToDelegate(Console.WriteLine))
        .ExecuteAsync(cts.Token);

    Logger.Info("Running. Proces ID: {0}", task.ProcessId);

    Logger.Debug("Before await");
    await task;
    Logger.Debug("After await");
});

3. I will also need to be able to kill process. Using the cancelation tokens if I read corretly. What is the proper way to handle this if I have lets say 16 processes and wish to kill specific one?

I wish there were more samples in this project to use a guidence.

Thank you.

[Tyrrrz]

1. I was using new Process and feed it's StandardOutput and StandardError to a function for further processing. Here I can only figure out how to pass the output and error to console. How to push this to external function for live processing?

You can put anything else inside your PipeTarget.ToDelegate(...) delegate.

2. It is a console application but even a simple sample doesn't work for me. Under main() I fire new background thread that runs a php server and closes it after 5 seconds. Process exits but the task never finishes. Sample code I am using:

Make sure you await your background task.

I will also need to be able to kill process. Using the cancelation tokens if I read corretly. What is the proper way to handle this if I have lets say 16 processes and wish to kill specific one?

You issue separate cancellation tokens for each one.

[thehijacker]

1. I was using new Process and feed it's StandardOutput and StandardError to a function for further processing. Here I can only figure out how to pass the output and error to console. How to push this to external function for live processing?

You can put anything else inside your PipeTarget.ToDelegate(...) delegate.

Can not make it work. How to get function ProcessOutput function as delegate?

RunProcess(
          c,
          executable,
          parameters,
          s => { ProcessOutput(c, s); },
          s => { ProcessOutput(c, s); }
      );

2. It is a console application but even a simple sample doesn't work for me. Under main() I fire new background thread that runs a php server and closes it after 5 seconds. Process exits but the task never finishes. Sample code I am using:

Make sure you await your background task.

It is awaited, but it still doesn't finish.

await task;

I will also need to be able to kill process. Using the cancelation tokens if I read corretly. What is the proper way to handle this if I have lets say 16 processes and wish to kill specific one?

You issue separate cancellation tokens for each one.

Got it. When I am that far :).

Thank you.