private void EngineStateReportEventHandler(TELEGRAPH_ENGINE_STATE State, TelegraphEngine EngineItem)
{
switch (State)
{
case TELEGRAPH_ENGINE_STATE.ENGINE_START:
m_Adapter.WriteLogLine("Telegraph engine starts working..");
break;
case TELEGRAPH_ENGINE_STATE.ENGINE_DISPOSED:
EngineItem.EngineStateReportEvent -= new EngineStateReport(EngineStateReportEventHandler);
m_Adapter.WriteLogLine("Telegraph engine is disposed.");
if (m_tEngine == EngineItem)
{
m_tEngine = null;
}
break;
case TELEGRAPH_ENGINE_STATE.ENGINE_STOPED:
//EngineItem.EngineStateReportEvent -= new EngineStateReport(EngineStateReportEventHandler);
m_Adapter.WriteLogLine("Telegraph engine stopped.");
break;
case TELEGRAPH_ENGINE_STATE.ENGINE_STOPPING:
m_Adapter.WriteLogLine("Requesting stopping telegraph engine...");
break;
}
}
protected override void OnPipelineServiceCancelled()
{
base.OnPipelineServiceCancelled();
OnCancelAllPendingTelegraphs();
if (null != m_tEngine)
{
try
{
m_tEngine.Dispose();
m_tEngine = null;
}
catch (Exception Err)
{
Err.ToString();
}
}
}
//private AutoResetEvent m_EngineCompleteSignal = null;
public override System.Boolean DoService()
{
if (Cancelled)
{
//! recieve cancel request
OnCancelAllPendingTelegraphs();
return(false);
}
if (FSM_SEND_TELEGRAPHS)
{
if (null == m_TelegraphList)
{
return(false);
}
if (0 == m_TelegraphList.Count)
{
return(false);
}
foreach (Telegraph tTelegraph in m_TelegraphList)
{
SinglePhaseTelegraph tTelegraphItem = tTelegraph as SinglePhaseTelegraph;
if (null == tTelegraphItem)
{
//! cancel this telegraph
m_TelegraphList.Remove(tTelegraph);
tTelegraph.OnCancel();
continue;
}
}
if (null == m_tEngine)
{
m_tEngine = m_TelegraphList[0].CreateTelegraphEngine() as SinglePhaseTelegraphEngine;
m_tEngine.ParentAdapter = m_Adapter;
m_tEngine.Priority = ThreadPriority.AboveNormal;
m_tEngine.EngineStateReportEvent += new EngineStateReport(EngineStateReportEventHandler);
m_Adapter.WriteLogLine("New telegraph engine is created.");
}
if (null != m_tEngine.CompleteSignal)
{
m_tEngine.CompleteSignal.Reset();
}
m_tEngine.TryToSendTelegraphs(m_TelegraphList.ToArray());
if (null != m_tEngine.CompleteSignal)
{
m_tEngine.CompleteSignal.WaitOne();
}
else
{
Thread.Sleep(10);
}
FSM_SEND_TELEGRAPHS = false;
FSM_WAIT_RESULT = true;
}
if (FSM_WAIT_RESULT)
{
do
{
lock (((ICollection)m_TelegraphList).SyncRoot)
{
if (0 == m_TelegraphList.Count)
{
if (null != m_tEngine)
{
try
{
m_tEngine.Dispose();
m_tEngine = null;
}
catch (Exception)
{
}
}
//m_tEngine = null;
FSM_WAIT_RESULT = false;
FSM_SEND_TELEGRAPHS = true;
return(false);
}
}
if (Cancelled)
{
FSM_WAIT_RESULT = false;
FSM_SEND_TELEGRAPHS = true;
//! recieve cancel request
OnCancelAllPendingTelegraphs();
return(false);
}
Thread.Sleep(1);
} while (true);
}
return(true);
}
