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dsSerial.h

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/*
 * $Id: dsSerial.h,v 1.8 2004/06/25 08:25:03 dsamersoff Exp $
 *
 *
 */


#ifndef dsSerial_h
#define dsSerial_h


#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#ifdef Win32
# include <windows.h>
#else
# include <sys/ioctl.h>
# include <termios.h>
# include <sys/types.h>
# include <signal.h>
#endif

#ifdef Solaris
#include <sys/filio.h>
#endif

#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#include <iostream>

#include <dsSmartException.h>
#include <dsutil.h>

DECLARE_EXCEPTION(dsSerial);

enum { OP_READ, OP_WRITE };

class dsSerial
{
protected:

  int _flags; 
  int _speed;
  char *_dev;  

#ifdef Win32
  DCB *_oldtio;
  HANDLE _hSerial;
  OVERLAPPED _osWrite, _osRead;
#else
  termios * _oldtio;
  termios * _newtio;
  int _hSerial;
#endif

public:
   dsSerial();
   dsSerial(const char *tty, int speed, int flags);
  ~dsSerial();

   void Open(const char *tty, int speed, int flags);
   void Open();
   void Close();

   void Lock(const char *tty, const char *lockdir = "/var/run" );
   void UnLock(const char *tty, const char *lockdir = "/var/run" );


   void setDtr(bool set = true);
   void setRts(bool set = true);

   bool testCts();
   int  readQueueSize();

   void changeSpeed(int speed);

   int  Select(struct timeval *timeout, int op = OP_READ);
   size_t Read(char *buf, size_t nbytes, int sec = 10, int usec = 0);
   int ReadLine(std::ostream& os, int sec = 10, int usec = 0);
   size_t Write(const char *buf, size_t nbytes);

#ifdef Win32
    HANDLE fd();
#else
    int fd();
#endif  
};

#endif

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