def parseProcess(self, process):
"""
Converts a psutil process into a BrewPiProcess object by parsing the config file it has been called with.
Params: a psutil.Process object
Returns: BrewPiProcess object
"""
bp = BrewPiProcess()
db_config = None
cfg = None
try:
bp.pid = process._pid
try: # If this is a database configured installation, try loading via the process ID
db_config = models.BrewPiDevice.objects.get(process_id=bp.pid)
except:
cfg = [s for s in process.cmdline()
if '.cfg' in s] # get config file argument
except psutil.NoSuchProcess:
# process no longer exists
return None
if db_config is not None: # If this is a database-configured installation, use the database configuration
bp.cfg = util.read_config_from_database_without_defaults(db_config)
else:
if cfg:
cfg = cfg[0] # add full path to config file
else:
# use default config file location
cfg = util.scriptPath() + "/settings/config.cfg"
bp.cfg = util.read_config_file_with_defaults(cfg)
bp.port = bp.cfg['port']
bp.sock = BrewPiSocket.BrewPiSocket(bp.cfg)
return bp
return self.__asciiToUnicode(lines[0])
# remove extended ascii characters from string, because they can raise UnicodeDecodeError later
def __asciiToUnicode(self, s):
s = s.replace(chr(0xB0), '°')
return unicode(s, 'ascii', 'ignore')
if __name__ == '__main__':
# some test code that requests data from serial and processes the response json
import simplejson
import BrewPiUtil as util
# TODO - Rewrite the test code below to work with the database
config_file = util.addSlash(sys.path[0]) + 'settings/config.cfg'
config = util.read_config_file_with_defaults(config_file)
ser = util.setupSerial(config, time_out=0)
if not ser:
printStdErr("Could not open Serial Port")
exit()
bg_ser = BackGroundSerial(ser)
bg_ser.start()
success = 0
fail = 0
for i in range(1, 5):
# request control variables 4 times. This would overrun buffer if it was not read in a background thread
# the json decode will then fail, because the message is clipped
bg_ser.writeln('v')
bg_ser.writeln('v')
