private void pause()
{
_started.Wait(); // ensure that the process is not yet in the start-up phase, immediately after the call to Start().
foreach (var childProcess in _process.ChildProcessIds(true).Select(pid => Process.GetProcessById(pid)).Concat(_process))
{
foreach (ProcessThread thr in childProcess.Threads)
{
IntPtr pThread = WinAPI.OpenThread(WinAPI.ThreadAccess.SUSPEND_RESUME, false, (uint)thr.Id);
if (pThread == IntPtr.Zero)
{
continue;
}
WinAPI.SuspendThread(pThread);
WinAPI.CloseHandle(pThread);
}
}
}
private void resume(object _ = null)
{
lock (_lock)
{
if (_pauseTimerDue == null || _process == null || State != CommandRunnerState.Started)
{
return;
}
// The due time may have changed; wait more if necessary
var now = DateTime.UtcNow;
if (now < _pauseTimerDue)
{
_pauseTimer.Change(_pauseTimerDue.Value - now, TimeSpan.FromMilliseconds(-1));
return;
}
_pauseTimerDue = null;
_pauseTimer.Dispose();
_pauseTimer = null;
foreach (var childProcess in _process.ChildProcessIds(true).Select(pid => Process.GetProcessById(pid)).Concat(_process))
{
foreach (ProcessThread thr in childProcess.Threads)
{
IntPtr pThread = WinAPI.OpenThread(WinAPI.ThreadAccess.SUSPEND_RESUME, false, (uint)thr.Id);
if (pThread == IntPtr.Zero)
{
continue;
}
WinAPI.ResumeThread(pThread);
WinAPI.CloseHandle(pThread);
}
}
}
if (CommandResumed != null)
{
CommandResumed();
}
}
