#ifndef acsVltMountNotifyImpl_h #define acsVltMountNotifyImpl_h /******************************************************************************* * ALMA - Atacama Large Millimiter Array * (c) European Southern Observatory, 2002 * Copyright by ESO (in the framework of the ALMA collaboration) * and Cosylab 2002, All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * "@(#) $Id: acsVltMountNotifyImpl.h,v 1.1 2004/01/30 16:17:20 dfugate Exp $" * */ #ifndef __cplusplus #error This is a C++ include file and cannot be used from plain C #endif #include #include ///In this example, events are published to a channel implying we need this header #include ///In this example, events are also consumed implying we need this header #include using namespace acscomponent; /** @file acsVltMountNotifyImpl.h */ /** @defgroup ACSVLTMOUNTNOTIFYDOC MountNotify * @{ * @htmlonly

Description

The class MountNotify is identical to Mount1 in nearly all aspects except:
  • it publishes and consumes data from an event channel using the ACS event channel API.
  • exception handling is not used.


What can I gain from this example?

  • an example derived from the ACS::Component IDL interface.
  • understanding of synchronous method implementation.
  • publishing events (in the form of user-defined IDL structs) to consumers.
  • processing events (in the form of user-defined IDL structs) sent by suppliers.


Links

* @endhtmlonly * @} */ /** @class MountNotify * The class MountNotify is identical to Mount1 except that in this case, it supplies/consumes * events from an event channel. * @version "@(#) $Id: acsVltMountNotifyImpl.h,v 1.1 2004/01/30 16:17:20 dfugate Exp $" */ class MountNotifyImpl: public virtual ACSComponentImpl, public virtual POA_ACSVLT_MOUNT::MountNotify { public: /** * Constructor * Nearly identical to the Mount1 C++ class's implementation except that * it instantiates both event supplier and consumer objects. * @param poa Poa which will activate this and also all other components. * @param name component's name. */ MountNotifyImpl(PortableServer::POA_ptr poa, const ACE_CString &name); /** * Destructor * Nearly identical to the Mount1 C++ class's implementation except that * it destroys the event supplier and consumer objects. */ virtual ~MountNotifyImpl(); /** * (Pre)sets a new non-moving position for the antenna. * The position coordinates are given in azimuth and elevation. * The actual az and elev values are written to the properties * cmdAz, cmdEl, actAz and actEl. Nearly identical to the Mount1 C++ * class's implementation except that just before this method returns * control, it publishes an event to a particular channel and exception * handling is not used here. * * @param az position azimuth (degree) * @param elev position elevation (degree) * @return void * @htmlonly *

* @endhtmlonly */ virtual void objfix (CORBA::Double az, CORBA::Double elev) throw (CORBA::SystemException); private: /** * This is the Supplier class used to publish data to the event channel. * The templated parameter is the type of event that will be sent. */ nc::SimpleSupplier *m_MountSupplier_p; /** * This is the Consumer class used to consumer data from the event channel. * The templated parameter is the type of event that will be subscribed * to. */ nc::SimpleConsumer *m_simpConsumer_p; /** * ALMA C++ coding standards state copy operators should be disabled. */ void operator=(const MountNotifyImpl&); }; #endif /*!acsVltMountNotifyImpl_H*/