static bool GetValueIfRegistered(AsyncCallInfo callInfo, out object value)
{
Guid id;
if (_asyncCallIds.TryGetValue(callInfo, out id))
{
// Already registered.
AsyncObservableState state = _observableStates[id];
value = state.GetValue();
return(true);
}
value = null;
return(false);
}
// Register a new observable
static object RegisterObservable(AsyncCallInfo callInfo, IExcelObservable observable)
{
// Check it's not registered already
Debug.Assert(!_asyncCallIds.ContainsKey(callInfo));
// Set up a new Id and ObservableState and keep track of things
Guid id = Guid.NewGuid();
_asyncCallIds[callInfo] = id;
AsyncObservableState state = new AsyncObservableState(id, callInfo, observable);
_observableStates[id] = state;
// Will spin up RTD server and topic if required, causing us to be called again...
return(state.GetValue());
}
// Register a new observable
static object RegisterObservable(AsyncCallInfo callInfo, IExcelObservable observable)
{
// Check it's not registered already
Debug.Assert(!_asyncCallIds.ContainsKey(callInfo));
// Set up ObservableState and keep track of things
// Caller might be null if not from worksheet
ExcelReference caller = XlCall.Excel(XlCall.xlfCaller) as ExcelReference;
Guid id = Guid.NewGuid();
_asyncCallIds[callInfo] = id;
AsyncObservableState state = new AsyncObservableState(id, callInfo, caller, observable);
_observableStates[id] = state;
// Will spin up RTD server and topic if required, causing us to be called again...
return(state.GetValue());
}
// Register a new observable
static object RegisterObservable(AsyncCallInfo callInfo, IExcelObservable observable)
{
// Check it's not registered already
Debug.Assert(!_asyncCallIds.ContainsKey(callInfo));
// Set up a new Id and ObservableState and keep track of things
Guid id = Guid.NewGuid();
_asyncCallIds[callInfo] = id;
AsyncObservableState state = new AsyncObservableState(id, callInfo, observable);
_observableStates[id] = state;
// Will spin up RTD server and topic if required, causing us to be called again...
return state.GetValue();
}
