private static Task<ProcessOutput> CreateTask(
Process process,
TaskCompletionSource<ProcessOutput> taskCompletionSource,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (taskCompletionSource == null)
{
throw new ArgumentException("taskCompletionSource");
}
if (process == null)
{
return taskCompletionSource.Task;
}
var errorLines = new List<string>();
var outputLines = new List<string>();
process.OutputDataReceived += (s, e) =>
{
if (e.Data != null)
{
outputLines.Add(e.Data);
}
};
process.ErrorDataReceived += (s, e) =>
{
if (e.Data != null)
{
errorLines.Add(e.Data);
}
};
process.Exited += (s, e) =>
{
var processOutput = new ProcessOutput(process.ExitCode, outputLines, errorLines);
taskCompletionSource.TrySetResult(processOutput);
};
var registration = cancellationToken.Register(() =>
{
if (taskCompletionSource.TrySetCanceled())
{
// If the underlying process is still running, we should kill it
if (!process.HasExited)
{
try
{
process.Kill();
}
catch (InvalidOperationException)
{
// Ignore, since the process is already dead
}
}
}
});
return taskCompletionSource.Task;
}
private static Task <ProcessOutput> CreateTask(
Process process,
TaskCompletionSource <ProcessOutput> taskCompletionSource,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (taskCompletionSource == null)
{
throw new ArgumentException("taskCompletionSource");
}
if (process == null)
{
return(taskCompletionSource.Task);
}
var errorLines = new List <string>();
var outputLines = new List <string>();
process.OutputDataReceived += (s, e) =>
{
if (e.Data != null)
{
outputLines.Add(e.Data);
}
};
process.ErrorDataReceived += (s, e) =>
{
if (e.Data != null)
{
errorLines.Add(e.Data);
}
};
process.Exited += (s, e) =>
{
// We must call WaitForExit to make sure we've received all OutputDataReceived/ErrorDataReceived calls
// or else we'll be returning a list we're still modifying. For paranoia, we'll start a task here rather
// than enter right back into the Process type and start a wait which isn't guaranteed to be safe.
Task.Run(() =>
{
process.WaitForExit();
var processOutput = new ProcessOutput(process.ExitCode, outputLines, errorLines);
taskCompletionSource.TrySetResult(processOutput);
});
};
var registration = cancellationToken.Register(() =>
{
if (taskCompletionSource.TrySetCanceled())
{
// If the underlying process is still running, we should kill it
if (!process.HasExited)
{
try
{
process.Kill();
}
catch (InvalidOperationException)
{
// Ignore, since the process is already dead
}
}
}
});
return(taskCompletionSource.Task);
}
private static Task<ProcessOutput> CreateTask(
Process process,
TaskCompletionSource<ProcessOutput> taskCompletionSource,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (taskCompletionSource == null)
{
throw new ArgumentException("taskCompletionSource");
}
if (process == null)
{
return taskCompletionSource.Task;
}
var errorLines = new List<string>();
var outputLines = new List<string>();
process.OutputDataReceived += (s, e) =>
{
if (e.Data != null)
{
outputLines.Add(e.Data);
}
};
process.ErrorDataReceived += (s, e) =>
{
if (e.Data != null)
{
errorLines.Add(e.Data);
}
};
process.Exited += (s, e) =>
{
// We must call WaitForExit to make sure we've received all OutputDataReceived/ErrorDataReceived calls
// or else we'll be returning a list we're still modifying. For paranoia, we'll start a task here rather
// than enter right back into the Process type and start a wait which isn't guaranteed to be safe.
Task.Run(() =>
{
process.WaitForExit();
var processOutput = new ProcessOutput(process.ExitCode, outputLines, errorLines);
taskCompletionSource.TrySetResult(processOutput);
});
};
var registration = cancellationToken.Register(() =>
{
if (taskCompletionSource.TrySetCanceled())
{
// If the underlying process is still running, we should kill it
if (!process.HasExited)
{
try
{
process.Kill();
}
catch (InvalidOperationException)
{
// Ignore, since the process is already dead
}
}
}
});
return taskCompletionSource.Task;
}
private static Task <ProcessOutput> CreateTask(
Process process,
TaskCompletionSource <ProcessOutput> taskCompletionSource,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (taskCompletionSource == null)
{
throw new ArgumentException("taskCompletionSource");
}
if (process == null)
{
return(taskCompletionSource.Task);
}
var errorLines = new List <string>();
var outputLines = new List <string>();
process.OutputDataReceived += (s, e) =>
{
if (e.Data != null)
{
outputLines.Add(e.Data);
}
};
process.ErrorDataReceived += (s, e) =>
{
if (e.Data != null)
{
errorLines.Add(e.Data);
}
};
process.Exited += (s, e) =>
{
var processOutput = new ProcessOutput(process.ExitCode, outputLines, errorLines);
taskCompletionSource.TrySetResult(processOutput);
};
var registration = cancellationToken.Register(() =>
{
if (taskCompletionSource.TrySetCanceled())
{
// If the underlying process is still running, we should kill it
if (!process.HasExited)
{
try
{
process.Kill();
}
catch (InvalidOperationException)
{
// Ignore, since the process is already dead
}
}
}
});
return(taskCompletionSource.Task);
}
private static Task <ProcessOutput> CreateProcessTask(
ProcessStartInfo processStartInfo,
bool lowPriority,
TaskCompletionSource <ProcessOutput> taskCompletionSource,
CancellationToken cancellationToken)
{
var errorLines = new List <string>();
var outputLines = new List <string>();
var process = new Process();
process.EnableRaisingEvents = true;
process.StartInfo = processStartInfo;
process.OutputDataReceived += (s, e) =>
{
if (e.Data != null)
{
outputLines.Add(e.Data);
}
};
process.ErrorDataReceived += (s, e) =>
{
if (e.Data != null)
{
errorLines.Add(e.Data);
}
};
process.Exited += (s, e) =>
{
// We must call WaitForExit to make sure we've received all OutputDataReceived/ErrorDataReceived calls
// or else we'll be returning a list we're still modifying. For paranoia, we'll start a task here rather
// than enter right back into the Process type and start a wait which isn't guaranteed to be safe.
Task.Run(() =>
{
process.WaitForExit();
var processOutput = new ProcessOutput(process.ExitCode, outputLines, errorLines);
taskCompletionSource.TrySetResult(processOutput);
});
};
var registration = cancellationToken.Register(() =>
{
if (taskCompletionSource.TrySetCanceled())
{
// If the underlying process is still running, we should kill it
if (!process.HasExited)
{
try
{
process.Kill();
}
catch (InvalidOperationException)
{
// Ignore, since the process is already dead
}
}
}
});
process.Start();
if (lowPriority)
{
process.PriorityClass = ProcessPriorityClass.BelowNormal;
}
if (processStartInfo.RedirectStandardOutput)
{
process.BeginOutputReadLine();
}
if (processStartInfo.RedirectStandardError)
{
process.BeginErrorReadLine();
}
return(taskCompletionSource.Task);
}
