read() [1/2]

std::string serialport::SerialPort::read

(

const std::string &

delim = "\n"

)

const

read from port until delimiter

read from port

Definition at line 83 of file serialport.cc.

References Mdebug, Mfd, sendxoff(), and sendxon().

Referenced by main(), and read().

  {
    std::string retval;
    const int nbuf=255;
    char buffer[nbuf];
    bool hot=true;
    this->sendxon();
    while (hot)
    {
      int nbytes=::read(Mfd, buffer, nbuf);
      if (Mdebug) 
      { 
        std::cout << "SerialPort::read: " << std::endl
          << "read " << nbytes << " characters" << std::endl;
      }
      if (nbytes>0) { retval.append(buffer, nbytes); }
      if (retval.find(delim)!=std::string::npos) { hot=false; }
    }
    this->sendxoff();
    return(retval);
  }

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