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connection.h

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00001 /*  Inti: Integrated Foundation Classes
00002  *  Copyright (C) 2002-2003 The Inti Development Team.
00003  *  Copyright (C) 2000 Red Hat, Inc.
00004  *
00005  *  This program is free software; you can redistribute it and/or modify
00006  *  it under the terms of the GNU General Public License as published by
00007  *  the Free Software Foundation; either version 2 of the License, or
00008  *  (at your option) any later version.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU Library General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU Library General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018  */
00019 
00022 
00023 #ifndef INTI_CONNECTION_H
00024 #define INTI_CONNECTION_H
00025 
00026 #ifndef INTI_OBJECT_H
00027 #include <inti/object.h>
00028 #endif
00029 
00030 namespace Inti {
00031         
00032 class Slot;
00033 
00039 
00040 class Node : public ReferencedObject
00041 {
00042         Slot *slot_;
00043         
00044 protected:
00045         Node(Slot *slot);
00047 
00048         virtual ~Node();
00050 
00051 public:
00052         
00053         Slot* slot() { return slot_; }
00055         
00056         virtual void block() = 0;
00058 
00059         virtual void unblock() = 0;
00061 
00062         virtual void disconnect() = 0;
00064 };
00065 
00075 
00076 class Connection
00077 {
00078         Node *node_;
00079 
00080 public:
00083 
00084         Connection();
00086 
00087         Connection(Node *node);
00090 
00091         Connection(const Connection& src);
00093 
00094         ~Connection();
00096 
00097         Connection& operator=(const Connection& src);
00099         
00103 
00104         bool is_connected() const;
00110 
00114 
00115         void block();
00118 
00119         void unblock();
00125 
00126         void disconnect();
00130         
00132 };
00133 
00134 } // namespace Inti
00135 
00136 #endif // INTI_CONNECTION_H
00137 
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