private static InvalidOperationException CreateCannotGetResultsFromIncompleteOperationException(Exception cause)
{
InvalidOperationException ex = (cause == null)
? new InvalidOperationException(SR.InvalidOperation_CannotGetResultsFromIncompleteOperation)
: new InvalidOperationException(SR.InvalidOperation_CannotGetResultsFromIncompleteOperation, cause);
ex.SetHResult(E_ILLEGAL_METHOD_CALL);
return(ex);
}
/// <summary>Close the async info.</summary>
public virtual void Close()
{
if (IsInClosedState)
{
return;
}
// Cannot Close from a non-terminal state:
if (!IsInTerminalState)
{
// If we are STATE_NOT_INITIALIZED, the we probably threw from the ctor.
// The finalizer will be called anyway and we need to free this partially constructed object correctly.
// So we avoid throwing when we are in STATE_NOT_INITIALIZED.
// In other words throw only if *some* async state is set:
if (0 != (_state & STATEMASK_SELECT_ANY_ASYNC_STATE))
{
InvalidOperationException ex = new InvalidOperationException(SR.InvalidOperation_IllegalStateChange);
ex.SetHResult(E_ILLEGAL_STATE_CHANGE);
throw ex;
}
}
TransitionToClosed();
}