def handler():
"""postfork hanlder, creates global domain object"""
global domain
persistence = Persistence('tve.db')
acquisition = Acquisition('/dev/ttyACM0')
service = Service(persistence)
domain = Domain(persistence, acquisition, service)
logging.basicConfig(level=logging.INFO,
format='%(asctime)s %(levelname)s %(message)s')
logging.info('Domain object initialized')
import sys
sys.path.append('..')
from Acquisition import Acquisition
import threading
# Sample count list
l_n_count = [100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000]
print('Sample count & Elapsed Time & Max Sampling Period & Max Sampling Rate')
for n_count in l_n_count:
# Creates an Acquisition that tries to sampling at maximum speed
a = Acquisition(0, 0, n_count)
a.start()
a.join()
elapsed_time = a.get_elapsed_time()
max_sampling_period = elapsed_time / n_count
max_sampling_rate = 1 / max_sampling_period
print(str(n_count) + ' & ' +
'{:.6f}'.format(elapsed_time) + ' & ' +
'{:.6f}'.format(max_sampling_period) + ' & ' +
'{:.6f}'.format(max_sampling_rate) + ' \\\\')
from Acquisition import Acquisition acq1 = Acquisition(4) acq1.start()
