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1 #!/home/matt/templog/venv/bin/python |
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2 |
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3 import sys |
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4 import os |
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5 import gevent |
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6 import gevent.monkey |
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7 |
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8 import utils |
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9 import fridge |
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10 import config |
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11 import sensor_ds18b20 |
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12 import params |
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13 |
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14 |
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15 class Tempserver(object): |
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16 def __init__(self): |
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17 self.readings = [] |
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18 self.current = (None, None) |
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19 |
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20 # don't patch os, fork() is used by daemonize |
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21 gevent.monkey.patch_all(os=False, thread=False) |
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22 |
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23 self.start_time = self.now() |
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24 |
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25 self.params = params.Params() |
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26 self.params.load() |
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27 |
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28 self.fridge = fridge.Fridge(self) |
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29 self.fridge.start() |
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30 |
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31 self.set_sensors(sensor_ds18b20.DS18B20s(self)) |
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32 |
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33 def run(self): |
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34 # won't return. |
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35 while True: |
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36 gevent.sleep(60) |
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37 |
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38 def now(self): |
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39 return utils.monotonic_time() |
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40 |
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41 def set_sensors(self, sensors): |
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42 if hasattr(self, 'sensors'): |
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43 self.sensors.kill() |
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44 self.sensors = sensors |
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45 self.wort_name = sensors.wort_name() |
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46 self.fridge_name = sensors.fridge_name() |
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47 |
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48 def take_readings(self): |
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49 ret = self.readings |
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50 self.readings = [] |
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51 return ret |
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52 |
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53 def pushfront(self, readings): |
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54 """ used if a caller of take_readings() fails """ |
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55 self.readings = pushback + self.readings |
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56 |
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57 # a reading is a map of {sensorname: value}. temperatures |
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58 # are float degrees |
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59 def add_reading(self, reading): |
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60 """ adds a reading at the current time """ |
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61 self.readings.append( (reading, self.now())) |
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62 self.current = (reading.get(self.wort_name, None), |
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63 reading.get(self.fridge_name, None)) |
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64 |
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65 def current_temps(self): |
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66 """ returns (wort_temp, fridge_temp) tuple """ |
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67 return self.current |
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68 |
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69 def setup_logging(): |
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70 logging.basicConfig(format='%(asctime)s %(message)s', |
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71 datefmt='%m/%d/%Y %I:%M:%S %p', |
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72 level=logging.INFO) |
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73 |
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74 def main(): |
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75 server = Tempserver() |
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76 |
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77 if '--daemon' in sys.argv: |
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78 utils.cheap_daemon() |
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79 |
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80 server.run() |
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81 |
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82 if __name__ == '__main__': |
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83 main() |
