/// <summary>
/// Start work
/// </summary>
public void Start(ManualResetEvent externalResetEvent)
{
_externalResetEvent = externalResetEvent ?? throw new ArgumentNullException("manualResetEvent");
try
{
_worker = new Thread(new ThreadStart(ThreadFunction));
_worker.Name = _threadName;
_worker.Start();
Thread.Sleep(0);
ServiceState = ServiceStateEnum.Running;
}
catch
{
try
{
Stop();
ServiceState = ServiceStateEnum.Stopped;
}
catch { } // We really have to stop somewhere
throw;
}
Log.Information("RealWork is running now.");
}
// report status to Service Control Manager window
protected void SetStatus(ServiceStateEnum newStatus)
{
ServiceStatus serviceStatus = new ServiceStatus()
{
dwCurrentState = newStatus,
dwWaitHint = 100000,
};
SetServiceStatus(svc.ServiceHandle, ref serviceStatus);
}
/// <summary>
/// C'tor
/// </summary>
public RealWork( )
{
// Set internal reset event to non-signalled
_internalResetEvent.Reset();
_worker = null;
_threadName = ConfigurationHelper.Instance.GetConfigurationValue("Thread: Name") ?? "RealWork";
_scanFrequency = int.Parse(
ConfigurationHelper.Instance.GetConfigurationValue("Thread:ScanFrequencyInMilliseconds") ?? "10000");
ServiceState = ServiceStateEnum.Stopped;
}
private void StopServerAsync(object nothing)
{
lock (_syncLock)
{
DicomServer server = _server;
_server = null;
if (server != null)
{
Trace.WriteLine("Stopping Dicom server.");
server.Stop();
}
_serviceState = ServiceStateEnum.Stopped;
OnServerStopped();
}
}
private void StopServer(bool wait)
{
lock (_syncLock)
{
if (_serviceState == ServiceStateEnum.Started)
{
_serviceState = ServiceStateEnum.Stopping;
ThreadPool.QueueUserWorkItem(StopServerAsync);
}
if (wait)
{
while (_serviceState != ServiceStateEnum.Stopped)
{
Monitor.Wait(_syncLock, 50);
}
}
}
}
/// <summary>
/// Stop work
/// </summary>
public void Stop()
{
// Do some cleanup here, depending on what specifically you are doing
_internalResetEvent.Set();
Log.Information("In RealWork.Stop(), received signal to stop.");
try
{
try
{
// Big question here...is thread in blocking or executing state?
if ((_worker.ThreadState & ThreadState.WaitSleepJoin) == 0)
{
_worker.Interrupt();
}
else
{
_worker.Abort();
_worker.Join(20);
}
}
catch (ThreadInterruptedException)
{
ServiceState = ServiceStateEnum.Dead;
try
{
_worker.Abort();
_worker.Join(20);
}
catch { }
}
}
catch
{
// We should really never get to here
ServiceState = ServiceStateEnum.Runaway;
throw;
}
}
public ServiceState(string state)
{
switch (state)
{
case "Stopped":
_state = ServiceStateEnum.Stopped;
break;
case "Start Pending":
_state = ServiceStateEnum.StartPending;
break;
case "Stop Pending":
_state = ServiceStateEnum.StopPending;
break;
case "Running":
_state = ServiceStateEnum.Running;
break;
case "Continue Pending":
_state = ServiceStateEnum.ContinuePending;
break;
case "Pause Pending":
_state = ServiceStateEnum.PausePending;
break;
case "Paused":
_state = ServiceStateEnum.Paused;
break;
default:
_state = ServiceStateEnum.Unknown;
break;
}
}
private void StartServerAsync(object nothing)
{
DicomServerConfiguration serverConfiguration;
lock (_syncLock)
{
serverConfiguration = Common.DicomServer.DicomServer.GetConfiguration();
_restart = false;
}
DicomServer server = null;
try
{
Trace.WriteLine("Starting Dicom server.");
server = new DicomServer(serverConfiguration);
server.Start();
}
catch (Exception e)
{
Platform.Log(LogLevel.Error, e, "Failed to start dicom server ({0}/{1}:{2}",
serverConfiguration.HostName, serverConfiguration.AETitle, serverConfiguration.Port);
server = null;
}
finally
{
lock (_syncLock)
{
//the server may be null here, we are just reflecting the state based on the method calls.
_server = server;
_serviceState = ServiceStateEnum.Started;
OnServerStarted();
}
}
}
private void StartServerAsync(object nothing)
{
DicomServerConfiguration serverConfiguration;
lock (_syncLock)
{
serverConfiguration = Common.DicomServer.DicomServer.GetConfiguration();
_restart = false;
}
DicomServer server = null;
try
{
Trace.WriteLine("Starting Dicom server.");
server = new DicomServer(serverConfiguration);
server.Start();
}
catch (Exception e)
{
Platform.Log(LogLevel.Error, e, "Failed to start dicom server ({0}/{1}:{2}",
serverConfiguration.HostName, serverConfiguration.AETitle, serverConfiguration.Port);
server = null;
}
finally
{
lock (_syncLock)
{
//the server may be null here, we are just reflecting the state based on the method calls.
_server = server;
_serviceState = ServiceStateEnum.Started;
OnServerStarted();
}
}
}
public static void Reset()
{
ServiceState = ServiceStateEnum.Stopped;
}
public void PausePending()
{
status = ServiceStateEnum.SERVICE_PAUSE_PENDING;
SetStatus(status);
}
public void ContinuePending()
{
status = ServiceStateEnum.SERVICE_CONTINUE_PENDING;
SetStatus(status);
}
public RestartListenerResult RestartListener(RestartListenerRequest request)
{
ServiceState = ServiceStateEnum.Started;
return new RestartListenerResult();
}
public void Stopped()
{
status = ServiceStateEnum.SERVICE_STOPPED;
SetStatus(status);
}
private void StopServerAsync(object nothing)
{
lock (_syncLock)
{
DicomServer server = _server;
_server = null;
if (server != null)
{
Trace.WriteLine("Stopping Dicom server.");
server.Stop();
}
_serviceState = ServiceStateEnum.Stopped;
OnServerStopped();
}
}
private void StopServer(bool wait)
{
lock (_syncLock)
{
if (_serviceState == ServiceStateEnum.Started)
{
_serviceState = ServiceStateEnum.Stopping;
ThreadPool.QueueUserWorkItem(StopServerAsync);
}
if (wait)
{
while (_serviceState != ServiceStateEnum.Stopped)
Monitor.Wait(_syncLock, 50);
}
}
}
public MultithreadingServices()
{
_state = ServiceStateEnum.Initialize;
}
private void ServiceStart()
{
_serviceFlag = true;
_state = ServiceStateEnum.Runing;
//_threadStart = new ThreadStart(RunService);
InitThreadPool();
_log.Debug("MultithreadingServices Start");
foreach (ThreadInformation t in _threadPools.Values)
{
t.Flag = true;
if (t.StartTime.Equals(DateTime.MinValue))
{
t.StartTime = DateTime.Now;
}
if (t.ProcessThread.ThreadState == ThreadState.Stopped ||
t.ProcessThread.ThreadState == ThreadState.Unstarted||
t.ProcessThread.ThreadState==ThreadState.Aborted)
{
t.ProcessThread.Start();
}
}
}
public ServiceState(ServiceStateEnum state)
{
_state = state;
}
public RestartListenerResult RestartListener(RestartListenerRequest request)
{
ServiceState = ServiceStateEnum.Started;
return(new RestartListenerResult());
}
public static void Reset()
{
ServiceState = ServiceStateEnum.Stopped;
}
/// <summary>
/// Initializes a new instance of the <see cref="ServiceStateChangedEventArgs"/> class.
/// </summary>
/// <param name="state">The state.</param>
public ServiceStateChangedEventArgs(ServiceStateEnum state)
{
this.ServiceState = state;
}
public void Paused()
{
status = ServiceStateEnum.SERVICE_PAUSED;
SetStatus(status);
}
public void StopPending()
{
status = ServiceStateEnum.SERVICE_STOP_PENDING;
SetStatus(status);
}
public void Running()
{
status = ServiceStateEnum.SERVICE_RUNNING;
SetStatus(status);
}
/// <summary>
/// Called when [service state changed].
/// </summary>
/// <param name="state">The state.</param>
protected virtual void OnServiceStateChanged(ServiceStateEnum state)
{
this.ServiceState = state;
RaiseEvent(EventServiceStateChanged, this, new ServiceStateChangedEventArgs(state));
}
