//============================================================================
/// <summary>
/// Adds a new event to the this event manager's list.
/// </summary>
/// <param name="sName">Name of the event.</param>
/// <param name="iRegID">Event ID.</param>
//============================================================================
public void addEventType(string sName, int iRegID)
{
TMEvent anEvent;
anEvent = new TMEvent(parentComp, this, sName, iRegID);
eventList.Add(anEvent);
}
//=======================================================================
/// <summary>
/// A copy constructor for the TMEvent.
/// </summary>
/// <param name="anEvent">Event to copy</param>
//=======================================================================
public TMEvent(TMEvent anEvent)
: base(anEvent)
{
requestList = new List <uint>();
//copy all the attributes of 'event'
eventName = anEvent.eventName;
parentComp = anEvent.parentComp;
parentMgr = anEvent.parentMgr;
eventID = anEvent.eventID;
FParams = anEvent.FParams; //should I be making a copy? (probably not. It is owned by the comp)
waiting = false; //not waiting for msg returns
nextEventState = anEvent.nextEventState;
}
//============================================================================
/// <summary>
/// Tracks the requests made to the rest of the system.
/// </summary>
/// <param name="eventID">Event ID.</param>
/// <param name="msgID">Message ID.</param>
//============================================================================
public void addRequest(int eventID, uint msgID)
{
RequestRecord request;
int eventIndex;
request = new RequestRecord();
request.eventID = eventID;
request.msgID = msgID;
requestList.Add(request);
//add the msgID to the request list of the event
eventIndex = eventIdx(eventID);
if (eventIndex >= 0)
{
TMEvent anEvent = (TMEvent)eventList[eventIndex];
anEvent.addRequest(msgID);
eventList[eventIndex] = anEvent;
}
}
//============================================================================
/// <summary>
/// Starts an execution of an event. If an event object exists and is idle, it
/// is started. To allow for threaded processing, a new event object will be
/// created if none are found to be idle.
/// </summary>
/// <param name="iRegID">ID of the event.</param>
/// <param name="iSender">Component ID requesting the event.</param>
/// <param name="iPublisher">Component that published this event.</param>
/// <param name="iMsgID">Message ID of this event msg.</param>
/// <param name="dataParams">Param data.</param>
/// <param name="bNotify"> </param>
//============================================================================
public void beginEvent(int iRegID, uint iSender, uint iPublisher, uint iMsgID, TDDMLValue dataParams, bool bNotify)
{
bool found = false;
TMEvent anEvent = null;
TMEvent eventToCopy = null;
string errorMsg;
int i = 0;
//look through the list of defined events to see if one is available to run
while ((!found) && (i < eventList.Count))
{
anEvent = (TMEvent)eventList[i];
if ((uint)(anEvent.getEventID()) == iRegID) //if the event is the correct type
{
found = (anEvent.getCurrentState() == TStateMachine.IDLE); //if it is idle, use this event
if (!found)
{
eventToCopy = anEvent;
}
}
i++;
}
//create a copy of a non idle event if necessary
if (!found)
{
if (eventToCopy == null)
{
errorMsg = String.Format("No event registered for {0}", iRegID);
throw (new ApplicationException(errorMsg));
}
anEvent = new TMEvent(eventToCopy);
}
anEvent.iPublisher = iPublisher;
anEvent.bNotify = bNotify; // set up info for later acknowledgement
anEvent.iNotifyTo = iSender;
anEvent.iNotifyMsg = iMsgID;
anEvent.beginEvent(dataParams); //now activate the event
}
//============================================================================
/// <summary>
/// Informs the event that sent the msgID, that a return has occured. The
/// number of remaining requests required by the event is checked. If no returns
/// are still pending then the event is resumed.
/// </summary>
/// <param name="msgID">Message ID.</param>
//============================================================================
public void completeRequest(uint msgID)
{
int anEventIdx;
bool found;
int remainingRequests;
//scan through the request list and find the event that triggered it
int i = 0;
found = false;
while ((!found) && (i < requestList.Count))
{
RequestRecord request = (RequestRecord)requestList[i];
if (request.msgID == msgID)
{ //if the msg request if found
found = true;
anEventIdx = eventIdx(request.eventID); //get the TMEvent belonging to the request
if (anEventIdx >= 0)
{
TMEvent anEvent = (TMEvent)eventList[anEventIdx];
//now delete the request from the the Event Manager's requestList
requestList.RemoveAt(i);
remainingRequests = anEvent.completeRequest(msgID); //tell the event that the request is complete
if (remainingRequests < 1) //if there are no pending requests then
{
//event.resumeEvent; //resume the event
anEvent.setWaiting(false);
}
eventList[anEventIdx] = anEvent;
}
}
else
{
i++; //next event
}
}
}
