def main():
# if len(sys.argv) != 2:
# print("Usage: fluent <led_no>")
# exit_program()
# fluent.id = int(sys.argv[1])
mqtt_client.will_set(mqtt_topic, '___Will of FLUENTS___', 0, False)
mqtt_client.on_message = on_message
mqtt_client.loop_start()
root = tk.Tk()
gui = Ledison(root)
for i in range(0, 8):
c = Circle(gui,
i,
40 + 40 * i,
40,
15,
fill="#BBB",
outline="white",
width=1)
if i in range(0, 2):
c.on_color = "green"
elif i in range(2, 4):
c.on_color = "blue"
elif i in range(4, 6):
c.on_color = "orange"
else:
c.on_color = "red"
leds.append(c)
c.write(OFF)
send_message("<LEDison> FLUENT is ready to rock")
root.mainloop()
exit_program()
def main():
if len(sys.argv) != 2:
print "Usage: fork <label>"
exit_program()
led_no = int(ord(sys.argv[1].lower()) - ord('a'))
if led_no < 0 or led_no > 7:
print "Usage: fork <label>\nlabel must be a letter between a and h"
exit_program()
mqtt_client.will_set(mqtt_topic, '___Will of FORK %s___' % fork.name, 0,
False)
mqtt_client.on_message = on_message
mqtt_client.loop_start()
fork.name = sys.argv[1]
fork.led_no = led_no
send_message("FORK '%s' is in da house (on led %d)" % (fork.name,
fork.led_no))
led = mraa.Gpio(fork.led_no + 2)
led.dir(mraa.DIR_OUT)
led.write(ON)
while True:
while fork.in_use:
led.write(OFF)
time.sleep(0.1)
led.write(ON)
time.sleep(0.1)
# send_message("FORK %s stayin' alive" % fork.name)
time.sleep(0.5)
def control_c_handler(signum, frame):
for p in property_list:
actions = p.alphabet
if "<>" in actions[p.status][1]:
send_message("UPDATEB VIOLATION OF PROPERTY %s" % p.name)
else:
send_message("UPDATEB %s EXITING GRACEFULLY" % p.name)
exit_program()
def update_properties():
label_str = ""
for i in range(0, len(property_list)):
if i != 0:
label_str = label_str + "\n"
label_str = label_str + ("%s" % property_list[i])
send_message("LABELB %s" % label_str)
def main():
mqtt_client.on_message = on_message
mqtt_client.will_set(mqtt_topic, "Will of Asserter\n\n", 0, False)
mqtt_client.loop_start()
description = "assert DONT_GET_FOOLED = " \
"forall[i:1..Max] forall[j:0..(i-1)] []!(send_leader[i][j])"
send_message("LABELA %s" % description)
while True:
time.sleep(1)
def on_message(client, userdata, msg):
message = msg.payload
# we are only interested in leader actions for this assert
split = message.split(" ")
if not split[3] == "LEADER":
return
send_message("UPDATEA DONT_GET_FOOLED : %s" % message)
recipient = int(split[4])
leader = int(split[5])
if recipient > leader:
send_message("UPDATEA DONT_GET_FOOLED : ASSERTFAILED")
def on_message(client, userdata, msg):
global systemStatus
message = msg.payload
# we are only interested in election/leader actions for this assert
split = message.split(" ")
if not split[3] in ["ELECTION", "LEADER"]:
return
# Check the status of the fluent here after receiving the
# messages
fluent.checkFluent(message)
if fluent.status == FluentStatus.ON:
systemStatus = AssertStatus.HOMEFREE
if systemStatus == AssertStatus.HOMEFREE:
send_message("UPDATEA %s : %s" % (assertName, message))
elif systemStatus != AssertStatus.HOMEFREE:
send_message("UPDATEA %s : %s" % (assertName, message))
split = message.split(" ")
if "LEADER" == split[3]:
recipient = int(split[4])
leader = int(split[5])
if leader == assertParam and systemStatus == AssertStatus.BEGIN:
systemStatus = AssertStatus.ERROR
send_message("UPDATEA %s : ASSERTFAILED" % assertName)
def on_message(client, userdata, msg):
splits = msg.payload.split(' ', 3)
for p in property_list:
found = False
actions = p.alphabet
for i in range(0, len(actions)):
if actions[i][0] == splits[3]:
found = True
break
if found:
send_message("UPDATEB %s %s %s: %s" %
(splits[0], splits[1], p.name, splits[3]))
if actions[p.status][0] == splits[3]:
p.status = (p.status + 1) % len(p.alphabet)
elif "<>" in actions[p.status][1]:
print("ALPHABET ACTION SEEN, STILL WAITING FOR EVENTUALLY")
else:
send_message("UPDATEB VIOLATION OF PROPERTY %s" % p.name)
if found:
update_properties()
def main():
global assertParam
global assertName
global assertDescription
global fluent
if len(sys.argv) < 2:
print "Invalid number of arguments, usage : " \
"python assert.py <assert parameter>"
exit_program()
assertParam = int(sys.argv[1])
fluent = Fluent(assertParam)
mqtt_client.on_message = on_message
mqtt_client.will_set(mqtt_topic, "Will of Asserter\n\n", 0, False)
mqtt_client.loop_start()
assertName = "VALID%d" % assertParam
assertDescription = "(!send_leader[%d][k:IDS] W send_id[%d][k:IDS])" % \
(assertParam, assertParam)
send_message("LABELA assert %s = %s" % (assertName, assertDescription))
while True:
time.sleep(1)
def on_message(client, userdata, msg):
# we only listen for messages from
# print msg.payload
splits = msg.payload.split(' ')
if splits[3] == "REQUEST":
if splits[4] == fork.name:
if fork.in_use:
send_message("FORKBUSY %s %d" % (fork.name, int(splits[5])))
else:
print(msg.payload)
send_message("FORKAVAIL %s %d" % (fork.name, int(splits[5])))
fork.in_use = True
elif splits[3] == "REPLACE":
if splits[4] == fork.name:
print(msg.payload)
send_message("FORKREPL %s" % fork.name)
fork.in_use = False
def on_message(client, userdata, msg):
message = msg.payload
splits = message.split(' ')
action = splits[3]
if action in ["LABELA", "LABELB", "UPDATEA", "UPDATEB"]:
return
to_id = int(splits[4])
# we are only interested in messages that are sent to our node id
if to_id == gui.id:
print(msg.payload)
if action == "ELECTION":
leader = int(splits[5])
if gui.state == Status.DECIDE:
print("trying to decide")
elif gui.state == Status.BOWOUT:
gui.send_id(leader)
elif gui.state in [Status.ANNOUNCE, Status.WAITING,
Status.WORKING, Status.IDLE]:
print("already had an election, cheating?")
else: # gui.state == Status.MAIN
gui.state = Status.DECIDE
if leader > gui.id:
for i in range(0, 8):
if i == 0:
leds[i].write(ON)
else:
leds[i].write(OFF)
gui.send_id(leader)
gui.state = Status.BOWOUT
elif leader < gui.id:
gui.state = Status.MAIN
gui.send_id(gui.id)
else:
gui.state = Status.ANNOUNCE
gui.send_leader(gui.id)
gui.state = Status.WAITING
elif action == "LEADER":
leader = int(splits[5])
if gui.state in [Status.MAIN, Status.DECIDE, Status.WORKING,
Status.IDLE]:
# not in a state to accept leader message, cheating?
print("maybe cheating")
elif gui.state == Status.BOWOUT:
if leader > gui.id:
gui.send_leader(leader)
send_message("WORKING %d" % gui.id)
gui.state = Status.WORKING
elif leader == gui.id:
print("received invalid leader id")
elif gui.state in [Status.ANNOUNCE, Status.WAITING]:
if leader == gui.id:
for i in range(0,8):
if i < 3:
leds[i].write(ON)
else:
leds[i].write(OFF)
send_message("WORKING %d" % gui.id)
gui.state = Status.WORKING
else:
print("should not receive multiple leaders")
def send_leader(self, id):
time.sleep(1)
send_message("LEADER %d %d" % (self.next_id, id))
def send_id(self, id):
time.sleep(1)
send_message("ELECTION %d %d" % (self.next_id, id))
