def start_test(self, results):
""" Grab stage - starts grabber thread and puts data to results queue
+clean up dirty buffer
pipeline
read source data ->
chop by samplerate w/ ratio ->
make pandas DataFrame ->
drain DataFrame to queue `results`
"""
logger.info('volta start test')
self.grabber_q = results
# clean up dirty buffer
for _ in range(self.sample_rate):
self.data_source.readline()
logger.info('reader init?')
self.reader = BoxPlainTextReader(self.data_source, self.sample_rate)
logger.info('reader init!')
self.pipeline = Drain(
TimeChopper(self.reader, self.sample_rate, self.chop_ratio),
self.my_metrics['currents'])
logger.info('Starting grab thread...')
self.pipeline.start()
logger.debug('Waiting grabber thread finish...')
def start_test(self, results):
""" Grab stage - starts grabber thread and puts data to results queue
+ handshake w/ device, get samplerate
pipeline
read source data ->
chop by samplerate w/ ratio ->
make pandas DataFrame ->
drain DataFrame to queue `results`
Args:
results: object answers to put() and get() methods
"""
self.grabber_q = results
# handshake
while self.data_source.readline() != "VOLTAHELLO\n":
pass
volta_spec = json.loads(self.data_source.readline())
self.sample_rate = volta_spec["sps"]
logger.info('Sample rate handshake success: %s', self.sample_rate)
while self.data_source.readline() != "DATASTART\n":
pass
self.reader = BoxBinaryReader(self.data_source, self.sample_rate,
self.slope, self.offset)
self.pipeline = Drain(
TimeChopper(self.reader, self.sample_rate, self.chop_ratio),
self.grabber_q)
logger.info('Starting grab thread...')
self.pipeline.start()
logger.debug('Waiting grabber thread finish...')
def start_test(self, results):
""" Grab stage - starts grabber thread and puts data to results queue
+ handshake w/ device, get samplerate
pipeline
read source data ->
chop by samplerate w/ ratio ->
make pandas DataFrame ->
drain DataFrame to queue `results`
Args:
results: object answers to put() and get() methods
"""
self.grabber_q = results
self.reader = BoxBinaryReader(self.data_source, self.sample_rate,
self.slope, self.offset,
self.power_voltage, self.precision)
self.pipeline = Drain(
TimeChopper(self.reader, self.sample_rate, self.chop_ratio),
self.my_metrics['current'])
logger.info('Starting grab thread...')
self.pipeline.start()
logger.debug('Waiting grabber thread finish...')