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/*
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* Copyright (C) 2015 by Andreas Theofilu. All rights reserved!
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*
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* All rights reserved. No warranty, explicit or implicit, provided.
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*
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* NOTICE: All information contained herein is, and remains
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* the property of Andreas Theofilu and his suppliers, if any.
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* The intellectual and technical concepts contained
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* herein are proprietary to Andreas Theofilu and its suppliers and
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* may be covered by European and Foreign Patents, patents in process,
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* and are protected by trade secret or copyright law.
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* Dissemination of this information or reproduction of this material
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* is strictly forbidden unless prior written permission is obtained
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* from Andreas Theofilu.
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*
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* Author: Andreas Theofilu <andreas@theosys.at>
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*/
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <iomanip>
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#include <cstring>
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#include <cctype>
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#include <cstddef>
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#include <cstdio>
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#include <cstdlib>
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#include <ctime>
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#include <fstream>
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#include <cerrno>
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#include <unistd.h>
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#include <syslog.h>
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#include <termios.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "config.h"
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#include "temperature.h"
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using namespace std;
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temperature::temperature()
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{
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struct termios options;
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initialized = false;
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fd_serial = -1;
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// Test if serial port is available.
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if (access(Configure.serial, R_OK | W_OK))
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{
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syslog(LOG_DAEMON, "Serial device <%s> is not accessible!", Configure.serial);
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return;
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}
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// open the serial port for reading and writing
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if ((fd_serial = open(Configure.serial, O_RDWR | O_NOCTTY | O_NDELAY)) == -1)
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{
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syslog(LOG_DAEMON, "Error opening serial device <%s>: %s", Configure.serial, strerror(errno));
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return;
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}
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tcgetattr(fd_serial, &options);
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cfsetispeed(&options, B9600);
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cfsetospeed(&options, B9600);
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tcsetattr(fd_serial, TCSANOW, &options);
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fcntl(fd_serial, F_SETFL, 0);
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// TODO: Detecting the menu of the temperature controller and set it to
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// meassure mode.
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initialized = true;
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}
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temperature::~temperature()
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{
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if (fd_serial != -1)
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close(fd_serial);
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fd_serial = -1;
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initialized = false;
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}
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double temperature::getTemp (int pos)
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{
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char hv0[1024];
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int r;
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if (!pos || fd_serial == -1 || !initialized)
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return 100.0;
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if ((r = read(fd_serial, &hv0[0], sizeof(hv0))) <= 0)
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{
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if (r < 0)
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syslog(LOG_DAEMON, "Error reading serial device <%s>: %s", Configure.serial, strerror(errno));
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return 100.0;
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}
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buffer.append(hv0);
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if (buffer.find('\x0d') != string::npos)
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{
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string temps = buffer.substr(buffer.find('\x0d') - 1);
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buffer.erase(0, buffer.find('\x0d'));
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vector<string> s = split(temps, ' ');
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return strtod(s.at(pos - 1).c_str(), NULL);
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}
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return 100.0;
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}
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