FlowControl.hxx

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00001 /*
00002  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 
00023 #ifndef _FlowControl_hxx_
00024 #define _FlowControl_hxx_
00025 
00026 
00027 #include <list>
00028 
00029 namespace CLAM
00030 {
00031 
00032 class Network;
00033 class Processing;
00034 
00035 class FlowControl
00036 {
00037         bool mNetworkChanged;
00038 
00039 public:
00040         FlowControl();
00041         virtual ~FlowControl(){}
00042         virtual void AttachToNetwork( Network* );
00043         
00044         //methods relative to state of FlowControl & Network
00045         virtual void ProcessingAddedToNetwork( Processing& added );
00046         virtual void ProcessingRemovedFromNetwork( Processing& removed );
00047         void ProcessingConfigured( Processing & configured );
00048 
00049         // to implement in each type of flowcontrol
00050         virtual void Do() = 0;
00051 
00052         void NetworkTopologyChanged() { mNetworkChanged=true;}
00053 
00054 protected:
00055         bool HasNetworkTopologyChanged() const { return mNetworkChanged; }
00056 
00057         Network * mNetwork;
00058 
00059 };
00060 
00061 }
00062 
00063 #endif
00064 
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