SystemMessageProvider.h

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00001 /*
00002 
00003 MegaPlusPlus a C++ implementation for the MegaSquirt-II
00004 Copyright (C) 2006  Keith Ballantyne
00005 
00006 This program is free software; you can redistribute it and/or
00007 modify it under the terms of the GNU General Public License
00008 version 2 as published by the Free Software Foundation.
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 General Public License for more details.
00014 
00015 You should have received a copy of the GNU General Public License
00016 along with this program; if not, write to the Free Software
00017 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00018 
00019 */
00020 
00032 #ifndef SYSTEMMESSAGEPROIVDER_H
00033     #define SYSTEMMESSAGEPROVIDER_H
00034 
00035  class SystemMessageProvider {
00036  public:
00037      enum MessageType {
00039          AD_CHANGE,
00041          TIMER_CHANGE
00042       };
00043 
00044       enum Status {
00046           OK,
00048           FAILED
00049       };
00050 
00056       inline MessageType getType() { return type; }
00057 
00063       inline char getChannel() { return channel; }
00064  
00070       virtual int getPayloadLength()=0;
00079       virtual Status getPayloadBytes(char *buffer)=0;
00080 
00081       virtual ~SystemMessageProvider() {}
00082  protected:
00089      SystemMessageProvider(MessageType t, char ch):type(t),channel(ch) {
00090      }
00091 
00095      const MessageType type;
00096 
00100      const char channel;
00101 };
00102 
00103  #endif

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