def runsendhandler(ser):
# print('looking for message to send')
try:
lastqueuedmessage = pilib.getfirsttimerow(pilib.motesdatabase, 'queuedmessages', 'queuedtime')[0]
except IndexError:
# no rows
# print('we have an error getting a queued message. Could be just no message.')
pass
else:
print('I HAVE A MESSAE')
# send queued message
pilib.log(pilib.seriallog, 'Sending serial message: ' + lastqueuedmessage['message'], 1, 1)
try:
# print('going to send message:')
# print(lastqueuedmessage['message'])
ser.write(lastqueuedmessage['message'].encode())
# sendserialmessage(ser, lastqueuedmessage['message'])
except:
pilib.log(pilib.seriallog, 'Error sending message', 1, 1)
else:
pilib.log(pilib.seriallog, 'Success sending message', 1, 1)
conditionnames = ['queuedtime', 'message']
conditionvalues = [lastqueuedmessage['queuedtime'], lastqueuedmessage['message']]
delquery = pilib.makedeletesinglevaluequery('queuedmessages', {'conditionnames':conditionnames, 'conditionvalues':conditionvalues})
pilib.sqlitequery(pilib.motesdatabase, delquery)
pilib.sqliteinsertsingle(pilib.motesdatabase, 'sentmessages', [lastqueuedmessage['queuedtime'], pilib.gettimestring(), lastqueuedmessage['message']])
return
def monitor(port='/dev/ttyAMA0', baudrate=115200, timeout=1, checkstatus=True):
import serial
import cupid.pilib as pilib
from time import mktime, localtime
data = []
if checkstatus:
systemstatus = pilib.readonedbrow(pilib.controldatabase, 'systemstatus')[0]
runhandler = systemstatus['serialhandlerenabled']
checktime = mktime(localtime())
checkfrequency = 15 # seconds
if runhandler:
pilib.log(pilib.iolog, "Starting monitoring of serial port", 1, pilib.iologlevel)
else:
pilib.log(pilib.iolog, "Not starting monitoring of serial port. How did I get here?", 1, pilib.iologlevel)
else:
runhandler = True
if runhandler:
ser = serial.Serial(port=port, baudrate=baudrate, timeout=timeout)
print("Monitoring serial port " + ser.name)
else:
print('not monitoring serial port ')
while runhandler:
ch = ser.read(1)
if len(ch) == 0:
# rec'd nothing print all
if len(data) > 0:
s = ''
for x in data:
s += '%s' % x # ord(x)
# Here for diagnostics
# print '%s [len = %d]' % (s, len(data))
# now process data
# print(s)
# print(s.split('\n'))
try:
# print('*************** processing datadict')
datadicts, messages = processserialdata(s)
# print('ALL MY DATADICTS')
# print(datadicts)
# print('END OF DICTS')
except IOError:
print('error processing message')
except Exception as ex:
template = "An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
print message
else:
for datadict, message in zip(datadicts, messages):
if datadict:
print("datadict: ")
print(datadict)
# print("message: ")
# print(message)
publish = False
for k in datadict:
# print(k + datadict[k])
if k not in ['nodeid','RX_RSSI']:
pass
# if 'cmd' in datadict:
publish = True
if publish:
print('publishing message')
statusresult = lograwmessages(message)
pilib.sizesqlitetable(pilib.motesdatabase, 'readmessages', 1000)
statusresult = processremotedata(datadict, message)
else:
if message:
print('message: ')
print(message)
# except:
# print('error processing returned datadict, message:')
# print(message)
# else:
# print("message parse was successful")
# print(message)
else:
# no data, let's see if we should send message
try:
lastqueuedmessage = pilib.getfirsttimerow(pilib.motesdatabase, 'queuedmessages', 'queuedtime')[0]
except IndexError:
# no rows
# print('we have an error getting a queued message. Could be just no message.')
pass
else:
# send queued message
print(lastqueuedmessage)
try:
print('going to send message:')
print(lastqueuedmessage['message'])
ser.write(lastqueuedmessage['message'].encode())
# sendserialmessage(ser, lastqueuedmessage['message'])
except:
print('oops')
else:
print('that worked out. remove message from queue')
conditionnames = ['queuedtime', 'message']
conditionvalues = [lastqueuedmessage['queuedtime'], lastqueuedmessage['message']]
delquery = pilib.makedeletesinglevaluequery('queuedmessages', {'conditionnames':conditionnames, 'conditionvalues':conditionvalues})
pilib.sqlitequery(pilib.motesdatabase, delquery)
print('move to sent messages')
pilib.sqliteinsertsingle(pilib.motesdatabase, 'sentmessages', [lastqueuedmessage['queuedtime'], pilib.gettimestring(), lastqueuedmessage['message']])
data = []
else:
data.append(ch)
if checkstatus:
thetime = mktime(localtime())
if thetime-checktime > checkfrequency:
print('checking control status')
systemstatus = pilib.readonedbrow(pilib.controldatabase, 'systemstatus')[0]
runserialhandler = systemstatus['serialhandlerenabled']
if runserialhandler:
checktime = thetime
pilib.log(pilib.iolog, 'Continuing serialhandler based on status check',3,pilib.iologlevel)
else:
runhandler=False
pilib.log(pilib.iolog, 'Aborting serialhandler based on status check',3,pilib.iologlevel)