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plib-mac-dist/include/plib/netChat.h
2022-10-15 14:31:14 +08:00

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/*
PLIB - A Suite of Portable Game Libraries
Copyright (C) 1998,2002 Steve Baker
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library 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
For further information visit http://plib.sourceforge.net
$Id: netChat.h 1568 2002-09-02 06:05:49Z sjbaker $
*/
/****
* NAME
* netChat - network chat class
*
* DESCRIPTION
* This class adds support for 'chat' style protocols -
* where one side sends a 'command', and the other sends
* a response (examples would be the common internet
* protocols - smtp, nntp, ftp, etc..).
*
* The handle_buffer_read() method looks at the input
* stream for the current 'terminator' (usually '\r\n'
* for single-line responses, '\r\n.\r\n' for multi-line
* output), calling found_terminator() on its receipt.
*
* EXAMPLE
* Say you build an nntp client using this class.
* At the start of the connection, you'll have
* terminator set to '\r\n', in order to process
* the single-line greeting. Just before issuing a
* 'LIST' command you'll set it to '\r\n.\r\n'.
* The output of the LIST command will be accumulated
* (using your own 'collect_incoming_data' method)
* up to the terminator, and then control will be
* returned to you - by calling your found_terminator()
*
* AUTHORS
* Sam Rushing <rushing@nightmare.com> - original version for Medusa
* Dave McClurg <dpm@efn.org> - modified for use in PLIB
*
* CREATION DATE
* Dec-2000
*
****/
#ifndef NET_CHAT_H
#define NET_CHAT_H
#include "netBuffer.h"
class netChat : public netBufferChannel
{
char* terminator;
virtual void handleBufferRead (netBuffer& buffer) ;
public:
netChat () : terminator (0) {}
void setTerminator (const char* t);
const char* getTerminator (void);
bool push (const char* s)
{
return bufferSend ( s, strlen(s) ) ;
}
virtual void collectIncomingData (const char* s, int n) {}
virtual void foundTerminator (void) {}
};
#endif // NET_CHAT_H