//======================================================================
// ISubscription
/// <summary>
/// Tells the server to send an data change update for all subscription items containing the cached values.
/// </summary>
public override void Refresh()
{
lock (this)
{
if (subscription_ == null)
{
throw new NotConnectedException();
}
string methodName = "IOPCAsyncIO2.Refresh2";
try
{
int cancelID = 0;
IOPCAsyncIO2 subscription = BeginComCall <IOPCAsyncIO2>(methodName, true);
subscription.Refresh2(OPCDATASOURCE.OPC_DS_CACHE, ++_counter, out cancelID);
}
catch (Exception e)
{
ComCallError(methodName, e);
throw Utilities.Interop.CreateException(methodName, e);
}
finally
{
EndComCall(methodName);
}
}
}
/// <summary>
/// Tells the server to send an data change update for all subscription items containing the cached values.
/// </summary>
public override void Refresh()
{
if (subscription_ == null)
{
throw new NotConnectedException();
}
lock (lock_)
{
string methodName = "IOPCAsyncIO2.Refresh2";
try
{
int cancelID = 0;
IOPCAsyncIO2 subscription = BeginComCall <IOPCAsyncIO2>(methodName, true);
subscription.Refresh2(OPCDATASOURCE.OPC_DS_CACHE, ++_counter, out cancelID);
if (DCOMCallWatchdog.IsCancelled)
{
throw new Exception($"{methodName} call was cancelled due to response timeout");
}
}
catch (Exception e)
{
ComCallError(methodName, e);
throw Utilities.Interop.CreateException(methodName, e);
}
finally
{
EndComCall(methodName);
}
}
}
public void Refresh2(OPCDataSource p_SourceMode, int p_TransactionID, out int p_CancelID)
{
m_IfAsync.Refresh2(p_SourceMode, p_TransactionID, out p_CancelID);
}