private void ErrorHandler(object sender, DataReceivedEventArgs e)
{
// Prepend line numbers to each line of the output.
if (e.Data != null)
{
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = e.Data
});
_outStr.Append("\r\n" + e.Data);
}
}
public async Task <string> Execute(string args)
{
Connecting conn = new Connecting(_exe, GetComParam() + args);
CancellationTokenSource cts = new CancellationTokenSource();
var t = Task.Run(() =>
{
string tempExeName = Path.Combine(ExePath, _exe);
if (!File.Exists(Path.Combine(ExePath, "python37.dll")) || !Directory.Exists(Path.Combine(ExePath, "lib")))
{
if (File.Exists(Path.Combine(ExePath, "python37.dll")))
{
File.Delete(Path.Combine(ExePath, "python37.dll"));
}
if (Directory.Exists(Path.Combine(ExePath, "lib")))
{
Directory.Delete(Path.Combine(ExePath, "lib"), true);
}
ZipFile.ExtractToDirectory(Path.Combine(ExePath, "cxfreeze.zip"), ExePath);
}
if (!File.Exists(Path.Combine(ExePath, "python37.dll")))
{
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = "Python DLL is not loaded."
});
}
else if (!File.Exists(tempExeName))
{
var errMsg = "[" + _exe + "] File '" + _exe + "' not found in directory " + ExePath + "! Unable to start request.";
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = errMsg
});
}
else if (_com.Length < 3)
{
var errMsg = "[" + _exe + "] COM port is invalid (" + _com + ") - please select the right port and try again.";
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = errMsg
});
}
else
{
int procId = 0;
var stopwatch = new Stopwatch();
stopwatch.Start();
using (var p = new Process())
{
try
{
using (cts.Token.Register(() => { p.Kill(); p.WaitForExit(500); p.Close(); p.Dispose(); }))
{
_outStr.Clear();
_outStr.Append(" >>> " + _exe + " " + GetComParam() + args + "\r\n");
ConsoleEvent.Invoke(this, new CustomEventArgs {
input = _exe + " " + GetComParam() + args
});
p.StartInfo = new ProcessStartInfo
{
FileName = tempExeName,
UseShellExecute = false,
WorkingDirectory = ExePath,
WindowStyle = ProcessWindowStyle.Hidden,
CreateNoWindow = true,
Arguments = GetComParam() + args,
RedirectStandardOutput = true,
RedirectStandardError = true
};
//p.StartInfo.RedirectStandardError = true;
//p.OutputDataReceived += new DataReceivedEventHandler(OutputHandler);
p.ErrorDataReceived += new DataReceivedEventHandler(ErrorHandler);
p.Start();
//p.BeginOutputReadLine();
p.BeginErrorReadLine();
procId = p.Id;
int dataReceived = 0;
var sTemp = "";
var outputReadTask = Task.Run(() =>
{
int iCh = 0;
var s2 = "";
var s3 = "";
try
{
do
{
iCh = p.StandardOutput.Read();
if (iCh >= 0)
{
if (iCh == 8)
{
s3 = "\r\n";
s2 = " ";
}
else
{
s2 = s3 + char.ConvertFromUtf32(iCh);
if (s3.Length > 0)
{
s3 = "";
}
}
sTemp += s2;
}
} while (iCh >= 0);
}
catch (Exception e)
{
var errMsg = "[" + _exe + "] Exception: " + e.Message;
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = errMsg
});
}
});
do
{
try
{
if (sTemp.Length > 0)
{
dataReceived++;
var s = sTemp;
sTemp = "";
_outStr.Append(s);
ConsoleEvent.Invoke(this, new CustomEventArgs {
output = s
});
}
else
{
p.WaitForExit(200);
}
}
catch (Exception) { }
if (dataReceived == 0 && stopwatch.ElapsedMilliseconds > 3000)
{
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = "Request timeout."
});
break;
}
} while (!p.HasExited);
if (sTemp.Length > 0)
{
_outStr.Append(sTemp);
ConsoleEvent.Invoke(this, new CustomEventArgs {
output = sTemp
});
}
}
}
catch (Exception ex)
{
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = ex.Message
});
}
try
{
p.Close();
}
catch (Exception) { }
}
stopwatch.Stop();
long elapsed_time = stopwatch.ElapsedMilliseconds;
ConsoleEvent.Invoke(this, new CustomEventArgs {
input = " [ execution time ] " + (elapsed_time / 1000.0) + " s"
});
try
{
if (Process.GetProcessesByName(_exe.Replace(".exe", "")).Length > 0)
{
Process.GetProcessesByName(_exe.Replace(".exe", ""))[0].Kill();
}
}
catch (Exception) { }
}
Connecting.Terminate();
}, cts.Token);
conn.ShowDialog();
if (!t.IsCompleted) // was aborted
{
ConsoleEvent.Invoke(this, new CustomEventArgs {
error = "Request aborted."
});
cts.Cancel();
t.Wait(500);
}
return(await Task.FromResult(_outStr.ToString()));
}
protected virtual void SendConsoleEvent(ConsoleEventArgs args)
{
ConsoleEvent?.Invoke(this, args);
}
