reader.cpp

一个开源的网络开发库ACE

// reader.cpp,v 4.4 1999/06/07 07:45:56 schmidt Exp

#include "ace/OS.h"
#include "ace/DEV_Addr.h"
#include "ace/DEV_Connector.h"
#include "ace/DEV_IO.h"
#include "ace/TTY_IO.h"

ACE_RCSID(reader, reader, "reader.cpp,v 4.4 1999/06/07 07:45:56 schmidt Exp")

int 
main (int argc, char *argv[])
{
  if (argc < 2)
    ACE_ERROR_RETURN ((LM_ERROR,
                       "usage: %s device-filename\n",
                       argv[0]),
                      1);

  ACE_TTY_IO read_dev;
  ACE_DEV_Connector con;

  if (con.connect (read_dev,
                   ACE_DEV_Addr (argv[1])) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       "%p\n",
                       argv[1]),
                      1);

  ACE_TTY_IO::Serial_Params myparams;
  myparams.baudrate = 9600;
  myparams.parityenb = 1;
  myparams.paritymode = "EVEN";
  myparams.databits = 8;
  myparams.stopbits = 1;
  myparams.readtimeoutmsec = 10000;
  myparams.ctsenb = 0;
  myparams.rcvenb = 1;

  if (read_dev.control (ACE_TTY_IO::SETPARAMS,
                        &myparams) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       "%p control\n",
                       argv[1]),
                      1);

  // Read till character 'q'.
  for (char readback = 'x'; readback != 'q'; )  
    {
      ssize_t bytes_read =
        read_dev.recv_n ((void *) &readback, 1);

      if (bytes_read == 1)
	ACE_DEBUG ((LM_DEBUG,
                    "read: %c\n",
                    readback));
      else if (bytes_read == -1)
          ACE_ERROR_RETURN ((LM_ERROR,
                             "%p  recv\n",

                             argv[1]), 1);
    }

  return 0;
}