def adjust_clock():
direction = request.query.direction
minutes = int(request.query.minutes)
print "Adjusting clock %s minutes %s" % (minutes, direction)
offset_file = open('offset.txt', 'r+', 0)
offset_file.seek(0)
offset_string = offset_file.read()
offset = int(offset_string)
if 'back' in direction:
offset -= minutes
dir = True
else:
offset += minutes
dir = False
offset_string = str(offset)
offset_file.seek(0)
offset_file.truncate()
offset_file.write(offset_string)
offset_file.close()
klok_lib.init()
klok_lib.turn(minutes * klok_lib.quarter_turns_per_minute / float(4),
brake=2,
dir=dir)
# return the HTML we want the user to see on screen
return "<b>Adjustment done</b>"
def calibrate_clock():
offset_file = open('offset.txt', 'r+', 0)
offset_file.seek(0)
offset_string = offset_file.read()
offset = int(offset_string)
new_offset_string = str(0)
offset_file.seek(0)
offset_file.truncate()
offset_file.write(new_offset_string)
offset_file.close()
calibration_file = open('calibration.txt', 'r+', 0)
calibration_file.seek(0)
calibration_string = calibration_file.read()
calibration = float(calibration_string)
new_calibration = calendar.timegm(time.gmtime()) / 60.0
new_calibration_string = str(new_calibration)
calibration_file.seek(0)
calibration_file.truncate()
calibration_file.write(new_calibration_string)
calibration_file.close()
minutes_since_calibration = new_calibration - calibration
correction_file = open('correction.txt', 'r+', 0)
correction_file.seek(0)
correction_string = correction_file.read()
correction = float(correction_string)
new_correction = correction * (minutes_since_calibration +
offset) / minutes_since_calibration
new_correction_string = str(new_correction)
correction_file.seek(0)
correction_file.truncate()
correction_file.write(new_correction_string)
correction_file.close()
print >> klok_lib.log, "Calibration offset: %s -> %s; calibration: %s -> %s; correction: %s -> %s" % (
offset_string, new_offset_string, calibration_string,
new_calibration_string, correction_string, new_correction_string)
klok_lib.init()
klok_lib.turn(1, brake=2, step=klok_lib.bells_step)
import klok_lib
import calendar
import time
def calibrate():
# read and reset offset
offset = int(klok_lib.read_string_from_file('offset.txt')) # [int min]
new_offset = 0
klok_lib.write_string_to_file('offset.txt', str(new_offset))
# read time of last calibration, reset it and calculate minutes passed
calibration = float(klok_lib.read_string_from_file('calibration.txt')) # [int min last calibration since epoch]
new_calibration = calendar.timegm(time.gmtime()) / 60.0 # [int min now since epoch]
klok_lib.write_string_to_file('calibration.txt', str(new_calibration))
minutes_since_calibration = new_calibration - calibration # [int min]
# read quarter_turns_per_minute_correction from file, calculate new correction and store it
correction = float(klok_lib.read_string_from_file('correction.txt')) # [float factor]
new_correction = correction * (minutes_since_calibration + offset) / minutes_since_calibration # [float factor]
klok_lib.write_string_to_file('correction.txt', str(new_correction))
print >> klok_lib.log, "Calibration offset: %s -> %s; calibration: %s -> %s; correction: %s -> %s" % (str(offset), str(new_offset), str(calibration), str(new_calibration), str(correction), str(new_correction))
klok_lib.init()
calibrate()
klok_lib.turn(1, brake=2, step=klok_lib.bells_step)
