Привет. Пишу программу на C# под Windows, которая запускает внешний RTSP-сервер.
При запуске следующего кода, процесс завершается с кодом -1 и с ошибкой "Не удаётся найти указанный файл", хотя при запуске процесса через командную строку/Win+R всё работает.
Код(class1.cs):
public static class ProcessAsyncHelper
{
public static async Task<ProcessResult> ExecuteShellCommand(string command, string arguments, int timeout)
{
var result = new ProcessResult();
using (var process = new Process())
{
// If you run bash-script on Linux it is possible that ExitCode can be 255.
// To fix it you can try to add '#!/bin/bash' header to the script.
process.StartInfo.FileName = command;
process.StartInfo.Arguments = arguments;
Console.WriteLine(process.StartInfo.Arguments);
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.CreateNoWindow = true;
var outputBuilder = new StringBuilder();
var outputCloseEvent = new TaskCompletionSource<bool>();
process.OutputDataReceived += (s, e) =>
{
// The output stream has been closed i.e. the process has terminated
if (e.Data == null)
{
outputCloseEvent.SetResult(true);
}
else
{
outputBuilder.AppendLine(e.Data);
}
};
var errorBuilder = new StringBuilder();
var errorCloseEvent = new TaskCompletionSource<bool>();
process.ErrorDataReceived += (s, e) =>
{
// The error stream has been closed i.e. the process has terminated
if (e.Data == null)
{
errorCloseEvent.SetResult(true);
}
else
{
errorBuilder.AppendLine(e.Data);
}
};
bool isStarted;
try
{
isStarted = process.Start();
}
catch (Exception error)
{
// Usually it occurs when an executable file is not found or is not executable
result.Completed = true;
result.ExitCode = -1;
result.Output = error.Message;
isStarted = false;
}
if (isStarted)
{
// Reads the output stream first and then waits because deadlocks are possible
process.BeginOutputReadLine();
process.BeginErrorReadLine();
// Creates task to wait for process exit using timeout
var waitForExit = WaitForExitAsync(process, timeout);
// Create task to wait for process exit and closing all output streams
var processTask = Task.WhenAll(waitForExit, outputCloseEvent.Task, errorCloseEvent.Task);
// Waits process completion and then checks it was not completed by timeout
if (await Task.WhenAny(Task.Delay(timeout), processTask) == processTask && waitForExit.Result)
{
result.Completed = true;
result.ExitCode = process.ExitCode;
Console.WriteLine(process.ExitCode);
// Adds process output if it was completed with error
if (process.ExitCode != 0)
{
result.Output = outputBuilder.ToString();
}
}
else
{
try
{
// Kill hung process
process.Kill();
}
catch
{
}
}
}
}
return result;
}
private static Task<bool> WaitForExitAsync(Process process, int timeout)
{
return Task.Run(() => process.WaitForExit(timeout));
}
public struct ProcessResult
{
public bool Completed;
public int? ExitCode;
public string Output;
}
}
Form1.cs
public ProcessAsyncHelper.ProcessResult x;
async private void button7_Click(object sender, EventArgs e)
{
x = await ProcessAsyncHelper.ExecuteShellCommand("cmd /c C:\\скачки\\rtsp-simple-server_v0.18.0_windows_amd64\\rtsp-simple-server.exe", "", 400);
}
private void button8_Click(object sender, EventArgs e)
{
Console.WriteLine(x.ExitCode.Value.ToString());
Console.WriteLine(x.Completed);
Console.WriteLine(x.Output);
Console.WriteLine(x.ToString());
}
Как можно решить эту проблему?
Средний
