def main():
config = Configuration("config.ini")
logging.basicConfig(level=config.logging_level)
logger = logging.getLogger('SpeedTrap')
logger.info("SpeedTrap Starting")
logger.info("Loading configuration file")
if config.clear_local_on_start:
LocalTools.clean_local(config)
log_speed = LogSpeed(config)
radar = Radar(config)
execute_loop = True
while execute_loop:
try:
current_report = radar.read_serial_buffer()
if (len(current_report) > 0):
try:
current_report_json = json.loads(current_report)
current_speed = abs(float(current_report_json['speed']))
logger.debug("Current speed is %s", current_speed)
log_speed.log_speed(current_speed)
except:
pass
else:
log_speed.log_speed(0)
except KeyboardInterrupt:
execute_loop = False
logger.info("SpeedTrap Terminating")
while threading.active_count() > 1:
logger.info('Waiting for %s threads to terminate.',
threading.active_count() - 1)
time.sleep(1)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-c",
"--config",
dest="filename",
help="load configuration file",
required=True)
config_filename = parser.parse_args().filename
config = Configuration(config_filename)
logging.basicConfig(filename=config.logging_path,
level=config.logging_level)
logger = logging.getLogger('SpeedTrap')
logger.info("SpeedTrap Starting")
logger.info("Configuration file successfully loaded")
logger.debug("%s", config)
if config.clear_local_on_start:
LocalTools.clean_local(config)
# log_speed = LogSpeed(config)
execute_loop = True
radar = Radar(config)
# Create pipes for inter-process communication
video_queue = Queue() # Video Ring Buffer
logger.debug("Starting video capture Process")
capture_video = CaptureVideo(config)
capture_parent, capture_child = Pipe()
capture_speed_parent, capture_speed_child = Pipe()
capture_process = Process(target=capture_video.capture,
args=(capture_child, capture_speed_child,
video_queue))
capture_process.start()
logger.info("Video capture Process started")
logger.debug("Starting video record Process")
record_video = RecordVideo(config)
record_parent, record_child = Pipe()
record_process = Process(target=record_video.record,
args=(record_child, video_queue))
record_process.start()
logger.info("Video record Process started")
logger.debug("Starting scribe Process")
data_recorder = Scribe(config)
data_parent, data_child = Pipe()
data_process = Process(target=data_recorder.capture, args=(data_child, ))
data_process.start()
logger.info("Scribe Process started")
# Tracking if we are currently recording so we don't accidentally create a race condition
recording = False
speed = 0
logger.debug("Starting radar polling loop")
while execute_loop:
try:
if record_parent.poll():
record_result = record_parent.recv()
logger.debug("Message received on record_parent Pipe()")
if type(record_result) is SpeedRecord:
logger.debug("Received message is a SpeedRecord")
logger.debug("Sending message on data_parent Pipe()")
data_parent.send(record_result) # Log Data
# Change the behavior of the capture process back to its default.
recording = False
capture_parent.send(0)
current_report = radar.read_serial_buffer()
if len(current_report) > 0:
try:
current_report_json = json.loads(current_report)
speed = abs(float(current_report_json['speed']))
except:
pass
else:
speed = 0
logger.debug("Current speed is %s", speed)
logger.debug(
"Sending message of %s to capture_speed_parent Pipe()", speed)
capture_speed_parent.send(speed)
if speed > config.record_threshold and recording is False:
recording = True
# Change the behavior of the video capture and recording process to record mode
logger.debug("Sending message of 1 to capture_parent Pipe()")
capture_parent.send(1)
logger.debug("Sending message of 1 to record_parent Pipe()")
record_parent.send(1)
except KeyboardInterrupt:
execute_loop = False
logger.info("SpeedTrap Terminating")
