static public int SpawnProcessAndWait(string Executable, string CWD, CaptureMessageDelegate CaptureOutputInstance, params string[] Parameters)
{
Process Utility = new Process();
try
{
FileInfo Info = new FileInfo(Executable);
if (!Info.Exists)
{
return(-1);
}
Utility.StartInfo.FileName = Executable;
foreach (string Parameter in Parameters)
{
Utility.StartInfo.Arguments += Parameter + " ";
}
Utility.StartInfo.WorkingDirectory = CWD;
Utility.StartInfo.CreateNoWindow = true;
Utility.StartInfo.UseShellExecute = false;
if (CaptureOutputInstance != null)
{
CaptureOutput = CaptureOutputInstance;
Utility.StartInfo.RedirectStandardOutput = true;
Utility.StartInfo.RedirectStandardError = true;
Utility.OutputDataReceived += new DataReceivedEventHandler(CaptureOutputCallback);
Utility.ErrorDataReceived += new DataReceivedEventHandler(CaptureOutputCallback);
CaptureOutput("Launching: " + Executable + " " + Utility.StartInfo.Arguments + "(CWD: " + Utility.StartInfo.WorkingDirectory + ")");
}
if (!Utility.Start())
{
return(-2);
}
if (CaptureOutputInstance != null)
{
Utility.BeginOutputReadLine();
Utility.BeginErrorReadLine();
Utility.EnableRaisingEvents = true;
}
while (!Utility.HasExited)
{
Utility.WaitForExit(50);
}
}
catch (Exception)
{
return(-3);
}
return(Utility.ExitCode);
}
/// <summary>
/// The process exit event.
/// </summary>
/// <param name="Sender">Unused.</param>
/// <param name="Args">Unused.</param>
private void ProcessExit(object Sender, EventArgs Args)
{
// Flush and close any pending messages
if (CaptureMessage != null)
{
LaunchedProcess.CancelOutputRead();
LaunchedProcess.CancelErrorRead();
// Protect against multiple calls
CaptureMessage = null;
}
LaunchedProcess.EnableRaisingEvents = false;
bIsFinished = true;
}
/// <summary>
/// The process exit event.
/// </summary>
/// <param name="Sender">Unused.</param>
/// <param name="Args">Unused.</param>
private void ProcessExit( object Sender, EventArgs Args )
{
// Flush and close any pending messages
if( CaptureMessage != null )
{
LaunchedProcess.CancelOutputRead();
LaunchedProcess.CancelErrorRead();
// Protect against multiple calls
CaptureMessage = null;
}
LaunchedProcess.EnableRaisingEvents = false;
bIsFinished = true;
}
/// <summary>
/// Construct a class wrapper that spawns a new child process with StdOut and StdErr optionally redirected and captured.
/// </summary>
/// <param name="Executable">The executable to launch.</param>
/// <param name="WorkingDirectory">The working directory of the process. If this is null, the current directory is used.</param>
/// <param name="InCaptureMessage">The log callback function. This can be null for no logging.</param>
/// <param name="Parameters">A string array of parameters passed on the command line, and delimited with spaces.</param>
/// <remarks>Any errors are passed back through the capture delegate. The existence of the executable and the working directory are checked before spawning is attempted.
/// An exit code of -1 is returned if there was an exception when spawning the process.</remarks>
public LaunchProcess(string Executable, string WorkingDirectory, CaptureMessageDelegate InCaptureMessage, params string[] Parameters)
{
CaptureMessage = InCaptureMessage;
// Simple check to ensure the executable exists
FileInfo Info = new FileInfo(Executable);
if (!Info.Exists)
{
PrintLog("ERROR: Executable does not exist: " + Executable);
bIsFinished = true;
return;
}
// Set the default working directory if necessary
if (WorkingDirectory == null)
{
WorkingDirectory = Environment.CurrentDirectory;
}
// Simple check to ensure the working directory exists
DirectoryInfo DirInfo = new DirectoryInfo(WorkingDirectory);
if (!DirInfo.Exists)
{
PrintLog("ERROR: Working directory does not exist: " + WorkingDirectory);
bIsFinished = true;
return;
}
// Create a new process to launch
LaunchedProcess = new Process();
// Prepare a ProcessStart structure
LaunchedProcess.StartInfo.FileName = Info.FullName;
LaunchedProcess.StartInfo.Arguments = String.Join(" ", Parameters);
LaunchedProcess.StartInfo.WorkingDirectory = DirInfo.FullName;
LaunchedProcess.StartInfo.CreateNoWindow = true;
// Need this for the Exited event as well as the output capturing
LaunchedProcess.EnableRaisingEvents = true;
LaunchedProcess.Exited += new EventHandler(ProcessExit);
// Redirect the output.
if (CaptureMessage != null)
{
LaunchedProcess.StartInfo.UseShellExecute = false;
LaunchedProcess.StartInfo.RedirectStandardOutput = true;
LaunchedProcess.StartInfo.RedirectStandardError = true;
LaunchedProcess.OutputDataReceived += new DataReceivedEventHandler(CaptureMessageCallback);
LaunchedProcess.ErrorDataReceived += new DataReceivedEventHandler(CaptureMessageCallback);
}
// Spawn the process - try to start the process, handling thrown exceptions as a failure.
try
{
PrintLog("Launching: " + LaunchedProcess.StartInfo.FileName + " " + LaunchedProcess.StartInfo.Arguments + " (CWD: " + LaunchedProcess.StartInfo.WorkingDirectory + ")");
LaunchedProcess.Start();
// Start the output redirection if we have a logging callback
if (CaptureMessage != null)
{
LaunchedProcess.BeginOutputReadLine();
LaunchedProcess.BeginErrorReadLine();
}
}
catch (Exception Ex)
{
// Clean up should there be any exception
LaunchedProcess = null;
bIsFinished = true;
PrintLog("ERROR: Failed to launch with exception: " + Ex.Message);
}
}
/// <summary>
/// Construct a class wrapper that spawns a new child process with StdOut and StdErr optionally redirected and captured.
/// </summary>
/// <param name="Executable">The executable to launch.</param>
/// <param name="WorkingDirectory">The working directory of the process. If this is null, the current directory is used.</param>
/// <param name="InCaptureMessage">The log callback function. This can be null for no logging.</param>
/// <param name="Parameters">A string array of parameters passed on the command line, and delimited with spaces.</param>
/// <remarks>Any errors are passed back through the capture delegate. The existence of the executable and the working directory are checked before spawning is attempted.
/// An exit code of -1 is returned if there was an exception when spawning the process.</remarks>
public LaunchProcess( string Executable, string WorkingDirectory, CaptureMessageDelegate InCaptureMessage, params string[] Parameters )
{
CaptureMessage = InCaptureMessage;
// Simple check to ensure the executable exists
FileInfo Info = new FileInfo( Executable );
if( !Info.Exists )
{
PrintLog( "ERROR: Executable does not exist: " + Executable );
bIsFinished = true;
return;
}
// Set the default working directory if necessary
if( WorkingDirectory == null )
{
WorkingDirectory = Environment.CurrentDirectory;
}
// Simple check to ensure the working directory exists
DirectoryInfo DirInfo = new DirectoryInfo( WorkingDirectory );
if( !DirInfo.Exists )
{
PrintLog( "ERROR: Working directory does not exist: " + WorkingDirectory );
bIsFinished = true;
return;
}
// Create a new process to launch
LaunchedProcess = new Process();
// Prepare a ProcessStart structure
LaunchedProcess.StartInfo.FileName = Info.FullName;
LaunchedProcess.StartInfo.Arguments = String.Join( " ", Parameters );
LaunchedProcess.StartInfo.WorkingDirectory = DirInfo.FullName;
LaunchedProcess.StartInfo.CreateNoWindow = true;
// Need this for the Exited event as well as the output capturing
LaunchedProcess.EnableRaisingEvents = true;
LaunchedProcess.Exited += new EventHandler(ProcessExit);
// Redirect the output.
if (CaptureMessage != null)
{
LaunchedProcess.StartInfo.UseShellExecute = false;
LaunchedProcess.StartInfo.RedirectStandardOutput = true;
LaunchedProcess.StartInfo.RedirectStandardError = true;
LaunchedProcess.OutputDataReceived += new DataReceivedEventHandler(CaptureMessageCallback);
LaunchedProcess.ErrorDataReceived += new DataReceivedEventHandler(CaptureMessageCallback);
}
// Spawn the process - try to start the process, handling thrown exceptions as a failure.
try
{
PrintLog( "Launching: " + LaunchedProcess.StartInfo.FileName + " " + LaunchedProcess.StartInfo.Arguments + " (CWD: " + LaunchedProcess.StartInfo.WorkingDirectory + ")" );
LaunchedProcess.Start();
// Start the output redirection if we have a logging callback
if( CaptureMessage != null )
{
LaunchedProcess.BeginOutputReadLine();
LaunchedProcess.BeginErrorReadLine();
}
}
catch( Exception Ex )
{
// Clean up should there be any exception
LaunchedProcess = null;
bIsFinished = true;
PrintLog( "ERROR: Failed to launch with exception: " + Ex.Message );
}
}
