public Task StartAsync(Tool tool)
{
IntPtr desktopHandle = WindowsUtility.CreateDesktop(DesktopName);
// embrace the madness -- it seems Windows always wants exactly one instance of "ctfmon.exe" in the new desktop
var ctfmonStartInfo = new ProcessStartInfo {
FileName = "ctfmon.exe", WorkingDirectory = "."
};
WindowsApi.PROCESS_INFORMATION ctfmonProcess = WindowsUtility.CreateProcess(ctfmonStartInfo, DesktopName);
AssociateWithJob(ctfmonProcess, false);
// start the desired process
var arguments = string.Join(" ", tool.Settings.GetArguments(tool));
var startInfo = new ProcessStartInfo
{
FileName = tool.ExecutablePath,
Arguments = arguments,
WorkingDirectory = tool.WorkingDirectory
};
WindowsApi.PROCESS_INFORMATION targetProcess = WindowsUtility.CreateProcess(startInfo, DesktopName);
AssociateWithJob(targetProcess, true);
WindowsApi.CloseDesktop(desktopHandle);
return(Task.FromResult((object)null));
}
private void AssociateWithJob(WindowsApi.PROCESS_INFORMATION processInformation, bool throwOnError)
{
if (_jobHandle == IntPtr.Zero)
{
lock (_jobHandleLock)
{
if (_jobHandle == IntPtr.Zero)
{
_jobHandle = WindowsApi.CreateJobObject(IntPtr.Zero, null);
var basic = new WindowsApi.JOBOBJECT_BASIC_LIMIT_INFORMATION {
LimitFlags = WindowsApi.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE
};
var extended = new WindowsApi.JOBOBJECT_EXTENDED_LIMIT_INFORMATION {
BasicLimitInformation = basic
};
int length = Marshal.SizeOf(typeof(WindowsApi.JOBOBJECT_EXTENDED_LIMIT_INFORMATION));
IntPtr extendedPointer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(extended, extendedPointer, false);
if (!WindowsApi.SetInformationJobObject(_jobHandle, WindowsApi.JOBOBJECTINFOCLASS.ExtendedLimitInformation, extendedPointer, (uint)length))
{
throw new TorSharpException($"Unable to set information on the job object. Error: {WindowsUtility.GetLastErrorMessage()}.");
}
}
}
}
if (processInformation.dwProcessId != 0)
{
lock (_processIdsLock)
{
_processIds.Add(processInformation.dwProcessId);
}
}
if (!WindowsApi.AssignProcessToJobObject(_jobHandle, processInformation.hProcess) && throwOnError)
{
throw new TorSharpException($"Unable to assign the process to the job object. Error: {WindowsUtility.GetLastErrorMessage()}.");
}
}