public void Stop()
{// attempt to gracefully exit threads
TimeoutCancelled = true;
HasAcquired = false;
MonitorTimer.Change(Timeout.Infinite, Timeout.Infinite);
SearchTimer.Change(Timeout.Infinite, Timeout.Infinite);
}
public void Restart()
{
TimeoutCancelled = false;
HasAcquired = false;
MonitorTimer.Change(0, Interval);
SearchTimer.Change(Timeout.Infinite, Timeout.Infinite);
}
private void OnProcessAcquired(ProcessMonitor m, ProcessEventArgs e)
{
ProcessUtils.Logger($"MONITOR@{ProcessName}",
$"Process acquired in {ProcessUtils.ElapsedToString(e.Elapsed)}: {e.ProcessName}.exe [{e.TargetProcess.Id}]");
HasAcquired = true;
MonitorTimer.Change(Timeout.Infinite, Timeout.Infinite);
SearchTimer.Change(0, Interval);
ProcessAcquired?.Invoke(m, e);
}
protected virtual void Dispose(bool disposing)
{
if (Disposed)
{
return;
}
if (disposing)
{
MonitorTimer.Change(Timeout.Infinite, Timeout.Infinite);
SearchTimer.Change(Timeout.Infinite, Timeout.Infinite);
MonitorTimer.Dispose();
SearchTimer.Dispose();
MonitorLock.Dispose();
}
Disposed = true;
}
private void OnProcessSoftExit(ProcessMonitor m, ProcessEventArgs e)
{// attempt to gracefully switch modes (monitor -> search)
if (HasAcquired && !string.IsNullOrWhiteSpace(e.ProcessName))
{
ProcessUtils.Logger($"MONITOR@{ProcessName}", $"Process exited, attempting to reacquire within {e.Timeout}s: {e.ProcessName}.exe");
}
else if (HasAcquired) // can't get process details?
{
ProcessUtils.Logger($"MONITOR@{ProcessName}", $"Process exited, attempting to reacquire within {e.Timeout}s");
}
HasAcquired = false;
// transition from monitoring -> searching
MonitorTimer.Change(Timeout.Infinite, Timeout.Infinite);
SearchTimer.Change(0, Interval);
ProcessSoftExit?.Invoke(m, e);
}
/// <summary>
/// TimerCallback delegate for threaded timer to reacquire a valid process by name
/// </summary>
private async void SearchProcess(object stateInfo)
{// used when searching for a valid process within a timeout
await MonitorLock.WaitAsync();
try
{// monitor with a shorter timeout for the search
if (!TimeoutCancelled)
{
await TimeoutWatcher(InnerTimeout);
}
else
{
SearchTimer.Change(Timeout.Infinite, Timeout.Infinite);
}
}
catch (Win32Exception) { }
finally
{
MonitorLock.Release();
}
}