def _open(self):
# Fix this hard coded path for detecting the usb moubt
# use dmesg maybe
mp = devices.get_mount_points()
# last device mounted path
if mp and len(mp) > 0:
dev = mp[len(mp)-1][1]
else: dev = 'sda1'
mountpath = os.path.join(dev, 'arduino') #'{device}/arduino/'.format(device=dev)
mount = os.path.join(mountpath, 'mount.txt')
upodfile = os.path.join(mountpath, self.filename)
if not os.path.exists(mount):
return None
exists = os.path.exists(upodfile)
stream = open(upodfile, 'a')
writer = csv.writer(stream)
# write header if it's a new file
if not exists:
writer.writerow(self.header)
return stream
def _open(self):
# Fix this hard coded path for detecting the usb moubt
# use dmesg maybe
mp = devices.get_mount_points()
# last device mounted path
if mp and len(mp) > 0:
dev = mp[len(mp) - 1][1]
else:
dev = 'sda1'
mountpath = os.path.join(
dev, 'arduino') #'{device}/arduino/'.format(device=dev)
mount = os.path.join(mountpath, 'mount.txt')
print 'mount:', mount
upodfile = os.path.join(mountpath, self.filename)
if not os.path.exists(mount):
print 'no file'
return None
exists = os.path.exists(upodfile)
stream = open(upodfile, 'a')
writer = csv.writer(stream)
# write header if it's a new file
if not exists:
writer.writerow(self.header)
return stream
def main(*argv):
# set the current thread id
threading.current_thread().name = 'Server-Thread'
# install signal handler
signal.signal(signal.SIGINT, signal_handler)
# log.info('Installed signal handler')
# setup event for thread synchronization
event = threading.Event()
# get communication channel to ATMega
channel = bridgeclient()
# setup data processing thread
processor = DataProcessor(name='DataProcessor-Thread', event=event, bridge=channel)
processor.start()
# log.info('Launched Data processor thread')
if not channel:
# log.critical('unable to setup bridgeclient to ATMega!')
return
# TODO: Explore BridgeClient code
# Performance: keep the socket open while subsequent get(...) operations
# By default BridgeClient open socket at begin of get(...) and closes after get(...)
channel.should_close_at_function_end = False
last_seen = ''
# Get data from the Tx-channel and post it the queue
while True:
try:
data = channel.get('TX-channel')
mp = devices.get_mount_points()
status = 'F'
if len(mp) > 0:
status = 'T'
channel.put('status', status)
# Time stamp is a part of data contract between
# ATMega and Atheros. This makes sure that data
# is different from that of previous data
# Prevent duplicate data read on the bridgeclient before it's refeshed
if data == last_seen:
continue
queue.put(data)
last_seen = data
event.set()
except Exception, e:
# log.exception(e)
# log.warning('Continue by ignoring the above exception!')
# try to re-initialize the ATMega communication channel
channel = bridgeclient()
processor.channel = channel
time.sleep(.7)
def main(*argv):
# set the current thread id
threading.current_thread().name = 'Server-Thread'
# install signal handler
signal.signal(signal.SIGINT, signal_handler)
# log.info('Installed signal handler')
# setup event for thread synchronization
event = threading.Event()
# get communication channel to ATMega
channel = bridgeclient()
# setup data processing thread
processor = DataProcessor(name='DataProcessor-Thread',
event=event,
bridge=channel)
processor.start()
# log.info('Launched Data processor thread')
if not channel:
# log.critical('unable to setup bridgeclient to ATMega!')
return
# TODO: Explore BridgeClient code
# Performance: keep the socket open while subsequent get(...) operations
# By default BridgeClient open socket at begin of get(...) and closes after get(...)
channel.should_close_at_function_end = False
last_seen = ''
# Get data from the Tx-channel and post it the queue
while True:
try:
data = channel.get('TX-channel')
mp = devices.get_mount_points()
status = 'F'
if len(mp) > 0:
status = 'T'
channel.put('status', status)
# Time stamp is a part of data contract between
# ATMega and Atheros. This makes sure that data
# is different from that of previous data
# Prevent duplicate data read on the bridgeclient before it's refeshed
if data == last_seen:
continue
queue.put(data)
last_seen = data
event.set()
except Exception, e:
# log.exception(e)
# log.warning('Continue by ignoring the above exception!')
# try to re-initialize the ATMega communication channel
channel = bridgeclient()
processor.channel = channel
time.sleep(.7)
