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/* Copyright 2009 Gary Briggs, Michael Carpenter
This file is part of obdgpslogger.
obdgpslogger is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
obdgpslogger 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with obdgpslogger. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
\brief Tools to open the sim port
*/
#ifndef __POSIXSIMPORT_H
#define __POSIXSIMPORT_H
#include "simport.h"
/// Base class for virtual ports
class PosixSimPort : public OBDSimPort {
public:
/// Constructor
/** \param tty_device Pass an actual /dev node and we'll open that instead of a pty
*/
PosixSimPort(const char *tty_device);
/// Destructor
virtual ~PosixSimPort();
/// Get a string representing the port as it's exposed
/** Take a copy if you care - the memory won't stay valid */
virtual char *getPort();
/// Read a line from the virtual port
/** Take a copy if you care - the memory won't stay valid */
virtual char *readLine();
/// Write some data to the virtual port
virtual void writeData(const char *data, int log=1);
private:
/// The file descriptor
int fd;
/// Last line read [returned by readLine]
char lastread[4096];
/// Current char buf [while reading]
char readbuf[4096];
/// String returned by getPort
char portname[4096];
/// Current position in the read buffer
int readbuf_pos;
};
#endif //__POSIXSIMPORT_H
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