/// <summary>
/// Preprocesses the specified input file.
/// </summary>
/// <param name="inputFile">The path of the input file.</param>
/// <returns>The path of the file created by the preprocessor.</returns>
private Stream Preprocess()
{
PreProcessor preProcessor = new PreProcessor(m_options);
string ppCommand = PreProcessor.Command;
string ppArguments = preProcessor.Arguments;
string traceMessage = String.Format("Executing preprocessor with following command line:\r\n{0} {1}", ppCommand, ppArguments);
NamedPipe pipe = null;
Trace.WriteLineIf(GlobalSettings.Verbosity.TraceVerbose, traceMessage);
ProcessStartInfo ppStartInfo = new ProcessStartInfo(ppCommand, ppArguments);
ppStartInfo.CreateNoWindow = true;
ppStartInfo.UseShellExecute = false;
ppStartInfo.RedirectStandardOutput = true;
ppStartInfo.RedirectStandardError = true;
try {
if (m_options.UseNamedPipes)
{
pipe = new NamedPipe(preProcessor.NamedPipeName);
}
m_ppProcess = new Process();
m_ppProcess.StartInfo = ppStartInfo;
m_ppProcess.OutputDataReceived += PreProcessor_OutputDataReceived;
m_ppProcess.ErrorDataReceived += PreProcessor_ErrorDataReceived;
m_ppProcess.Start();
m_ppProcess.BeginErrorReadLine();
m_ppProcess.BeginOutputReadLine();
Stream stream;
if (pipe == null)
{
m_ppProcess.WaitForExit();
if (m_ppProcess.ExitCode != 0)
{
throw new TerminateException(ExitCode.PreprocessorError);
}
stream = new FileStream(m_options.TempFile, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.SequentialScan);
}
else
{
if (!m_ppProcess.HasExited)
{
stream = pipe.Open();
}
else
{
throw new TerminateException(ExitCode.PreprocessorError);
}
}
return(stream);
}
catch (TerminateException) {
this.m_isCanceled = true;
if (m_ppProcess != null)
{
m_ppProcess.Dispose();
m_ppProcess = null;
}
throw;
}
catch (Exception ex) {
if (m_ppProcess != null)
{
// Detach the event handler before disposing. If they are not connected
// and the program execution stoped because of an exception the pre
// processor may send an error message when the named piped is
// destroyed.
m_ppProcess.OutputDataReceived -= PreProcessor_OutputDataReceived;
m_ppProcess.ErrorDataReceived -= PreProcessor_ErrorDataReceived;
m_ppProcess.Dispose();
m_ppProcess = null;
}
if (!IsCanceledOrTerminated)
{
string message = ppCommand + " " + ppArguments + ":\r\n" + ex.Message;
Trace.WriteLineIf(GlobalSettings.Verbosity.TraceError, message);
}
throw new TerminateException(ExitCode.ArgumentsError);
}
}
