/usr/include/plib/netChannel.h is in libplib-dev 1.8.5-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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: netChannel.h 1899 2004-03-21 17:41:07Z sjbaker $
*/
/****
* NAME
* netChannel - network channel class
*
* DESCRIPTION
* netChannel is adds event-handling to the low-level
* netSocket class. Otherwise, it can be treated as
* a normal non-blocking socket object.
*
* The direct interface between the netPoll() loop and
* the channel object are the handleReadEvent and
* handleWriteEvent methods. These are called
* whenever a channel object 'fires' that event.
*
* The firing of these low-level events can tell us whether
* certain higher-level events have taken place, depending on
* the timing and state of the connection.
*
* 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_CHANNEL_H
#define NET_CHANNEL_H
#include "netSocket.h"
class netChannel : public netSocket
{
bool closed, connected, accepting, write_blocked, should_delete ;
netChannel* next_channel ;
friend bool netPoll (unsigned int timeout);
public:
netChannel () ;
virtual ~netChannel () ;
void setHandle (int s, bool is_connected = true);
bool isConnected () const { return connected; }
bool isClosed () const { return closed; }
void shouldDelete () { should_delete = true ; }
// --------------------------------------------------
// socket methods
// --------------------------------------------------
bool open ( void ) ;
void close ( void ) ;
int listen ( int backlog ) ;
int connect ( const char* host, int port ) ;
int send ( const void * buf, int size, int flags = 0 ) ;
int recv ( void * buf, int size, int flags = 0 ) ;
// poll() eligibility predicates
virtual bool readable (void) { return (connected || accepting); }
virtual bool writable (void) { return (!connected || write_blocked); }
// --------------------------------------------------
// event handlers
// --------------------------------------------------
void handleReadEvent (void);
void handleWriteEvent (void);
// These are meant to be overridden.
virtual void handleClose (void) {
//ulSetError(UL_WARNING,"Network: %d: unhandled close",getHandle());
}
virtual void handleRead (void) {
ulSetError(UL_WARNING,"Network: %d: unhandled read",getHandle());
}
virtual void handleWrite (void) {
ulSetError(UL_WARNING,"Network: %d: unhandled write",getHandle());
}
virtual void handleAccept (void) {
ulSetError(UL_WARNING,"Network: %d: unhandled accept",getHandle());
}
virtual void handleError (int error) {
ulSetError(UL_WARNING,"Network: %d: errno: %s(%d)",getHandle(),strerror(errno),errno);
}
static bool poll (unsigned int timeout = 0 ) ;
static void loop (unsigned int timeout = 0 ) ;
};
#endif // NET_CHANNEL_H
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