public override async Task <Kernel> CreateKernelAsync(
SignalRConnectionOptions options,
KernelInvocationContext context)
{
var connection = new HubConnectionBuilder()
.WithUrl(options.HubUrl)
.Build();
await connection.StartAsync();
await connection.SendAsync("connect");
var receiver = new KernelCommandAndEventSignalRHubConnectionReceiver(connection);
var sender = new KernelCommandAndEventSignalRHubConnectionSender(connection);
var proxyKernel = new ProxyKernel(options.KernelName, receiver, sender);
var _ = proxyKernel.RunAsync();
proxyKernel.RegisterForDisposal(receiver);
proxyKernel.RegisterForDisposal(async() =>
{
await connection.DisposeAsync();
});
return(proxyKernel);
}
public async Task <Kernel> ConnectKernelAsync(KernelInfo kernelInfo)
{
// QUESTION: (ConnectKernelAsync) tests?
var hubConnection = new HubConnectionBuilder()
.WithUrl(HubUrl)
.Build();
await hubConnection.StartAsync();
await hubConnection.SendAsync("connect");
var receiver = new KernelCommandAndEventSignalRHubConnectionReceiver(hubConnection);
var sender = new KernelCommandAndEventSignalRHubConnectionSender(hubConnection);
var proxyKernel = new ProxyKernel(kernelInfo.LocalName, receiver, sender);
var _ = proxyKernel.StartAsync();
proxyKernel.RegisterForDisposal(receiver);
proxyKernel.RegisterForDisposal(async() =>
{
await hubConnection.DisposeAsync();
});
return(proxyKernel);
}
private async Task <Kernel> CreateProxyKernel(Language language)
{
var psi = new ProcessStartInfo
{
FileName = "dotnet-interactive",
Arguments = $"stdio --default-kernel {language.LanguageName()}",
WorkingDirectory = Directory.GetCurrentDirectory(),
RedirectStandardInput = true,
RedirectStandardOutput = true,
UseShellExecute = false,
};
var process = new Process {
StartInfo = psi
};
TaskCompletionSource <bool> ready = new();
process.Start();
var receiver = new KernelCommandAndEventTextReceiver(process.StandardOutput);
var sender = new KernelCommandAndEventTextStreamSender(process.StandardInput);
var kernel = new ProxyKernel("proxy", receiver, sender);
kernel.RegisterForDisposal(() =>
{
process.Kill(true);
process.Dispose();
});
var _ = kernel.RunAsync();
var sub = kernel.KernelEvents.OfType <KernelReady>().Subscribe(_ =>
{
ready.SetResult(true);
});
await ready.Task;
sub.Dispose();
return(kernel);
}
public async Task <Kernel> ConnectKernelAsync(KernelInfo kernelInfo)
{
if (_receiver is not null)
{
var kernel = new ProxyKernel(kernelInfo.LocalName, _receiver.CreateChildReceiver(), _sender);
var _ = kernel.StartAsync();
return(kernel);
}
else
{
// QUESTION: (ConnectKernelAsync) tests?
var command = Command[0];
var arguments = string.Join(" ", Command.Skip(1));
var psi = new ProcessStartInfo
{
FileName = command,
Arguments = arguments,
WorkingDirectory = WorkingDirectory.FullName,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
};
_process = new Process {
StartInfo = psi
};
_process.EnableRaisingEvents = true;
var stdErr = new StringBuilder();
_process.ErrorDataReceived += (o, args) => { stdErr.Append(args.Data); };
await Task.Yield();
_process.Start();
_process.BeginErrorReadLine();
_receiver = new MultiplexingKernelCommandAndEventReceiver(
new KernelCommandAndEventTextReceiver(_process.StandardOutput));
_sender = new KernelCommandAndEventTextStreamSender(_process.StandardInput);
var kernel = new ProxyKernel(kernelInfo.LocalName, _receiver, _sender);
kernel.RegisterForDisposal(this);
var r = _receiver.CreateChildReceiver();
var _ = kernel.StartAsync();
var checkReady = Task.Run(async() =>
{
await foreach (var eoc in r.CommandsAndEventsAsync(CancellationToken.None))
{
if (eoc.Event is KernelReady)
{
return;
}
}
});
var checkProcessError = Task.Run(async() =>
{
while (!checkReady.IsCompleted)
{
await Task.Delay(200);
if (_process.HasExited)
{
if (_process.ExitCode != 0)
{
throw new CommandLineInvocationException(
new CommandLineResult(_process.ExitCode,
error: stdErr.ToString().Split(new[] { '\r', '\n' },
StringSplitOptions.RemoveEmptyEntries)));
}
}
}
});
await Task.WhenAny(checkProcessError, checkReady);
return(kernel);
}
}
