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EventChannel.h

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00001 //                            Package   : omniEvents
00002 // EventsChannel.h            Created   : 2003/12/04
00003 //                            Author    : Alex Tingle
00004 //
00005 //    Copyright (C) 2003 Alex Tingle.
00006 //
00007 //    This file is part of the omniEvents application.
00008 //
00009 //    omniEvents is free software; you can redistribute it and/or
00010 //    modify it under the terms of the GNU Lesser General Public
00011 //    License as published by the Free Software Foundation; either
00012 //    version 2.1 of the License, or (at your option) any later version.
00013 //
00014 //    omniEvents is distributed in the hope that it will be useful,
00015 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017 //    Lesser General Public License for more details.
00018 //
00019 //    You should have received a copy of the GNU Lesser General Public
00020 //    License along with this library; if not, write to the Free Software
00021 //    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 //
00023 
00024 #ifndef OMNIEVENTS__EVENTCHANNEL_H
00025 #define OMNIEVENTS__EVENTCHANNEL_H
00026 
00027 #ifdef HAVE_CONFIG_H
00028 #  include "config.h"
00029 #endif
00030 
00031 #ifdef HAVE_IOSTREAM
00032 #  include <iostream>
00033 #else
00034 #  include <iostream.h>
00035 #endif
00036 
00037 #include "Servant.h"
00038 #include "CosEventChannelAdmin.hh"
00039 
00040 #ifdef HAVE_STD_IOSTREAM
00041 using namespace std;
00042 #endif
00043 
00044 class OEP_ecps;
00045 
00046 namespace OmniEvents {
00047 
00048 class SupplierAdmin_i;
00049 class ConsumerAdmin_i;
00050 
00102 class EventChannel_i
00103 : public POA_CosEventChannelAdmin::EventChannel,
00104   public Servant,
00105   public omni_thread
00106 {
00107 public: // CORBA interface methods
00108   CosEventChannelAdmin::ConsumerAdmin_ptr for_consumers();
00109   CosEventChannelAdmin::SupplierAdmin_ptr for_suppliers();
00110   void destroy();
00111 
00112 public:
00113   EventChannel_i(const char* channelName);
00114   EventChannel_i(const char* channelName, const OEP_ecps& ecps);
00115   ~EventChannel_i();
00116 
00133   void run(void* arg);
00134 
00135   void output(ostream& os);
00136   
00137   void setPullRetryPeriod(CORBA::ULong v) {_pullRetryPeriod=v;}
00138   void setMaxQueueLength( CORBA::ULong v) {_maxQueueLength=v;}
00139 
00140   CORBA::ULong pullRetryPeriod() const {return _pullRetryPeriod;}
00141   CORBA::ULong maxQueueLength()  const {return _maxQueueLength;}
00142 
00143 private:
00148   void createPoa(const char* channelName);
00149 
00150 private:
00151   SupplierAdmin_i*               _supplierAdmin;
00152   ConsumerAdmin_i*               _consumerAdmin;
00153   PortableServer::POAManager_var _poaManager;
00154   bool                           _shutdownRequested;
00155   CORBA::ULong                   _pullRetryPeriod;
00156   CORBA::ULong                   _maxQueueLength;
00157 };
00158 
00159 }; // end namespace OmniEvents
00160 
00161 #endif // OMNIEVENTS__EVENTCHANNEL_H

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