def add_single_dht_node(node_host_port_pair):
# first: connect to discovery service
requester = Waldo.tcp_connect(
Requester,
conf.COORDINATOR_HOST_PORT_PAIR.host,
conf.COORDINATOR_HOST_PORT_PAIR.port,
# the host and port that our new dht node will listen on for
# connections to other dht nodes.
node_host_port_pair.host,
node_host_port_pair.port,
)
# request request addresses of other nodes to contact from
# discovery service, plus register self with discovery service.
uuid, finger_table, next, prev = requester.register()
dht_node = Waldo.no_partner_create(
Node, uuid, util_funcs.distance, util_funcs.hashed_uuid, util_funcs.between, util_funcs.debug_print
)
# listen for connections to my node
def on_connected(sidea_endpoint):
sidea_endpoint.add_connection_to_node()
Waldo.tcp_accept(
NodeSideA,
node_host_port_pair.host,
node_host_port_pair.port,
dht_node,
node_host_port_pair.host,
node_host_port_pair.port,
connected_callback=on_connected,
)
# connect to other nodes in my finger table
for uuid in finger_table.keys():
# table_entry has form:
# host: <text>
# port: <number>
# valid: <bool>
# uuid: <text>
table_entry = finger_table[uuid]
host_to_connect_to = table_entry["host"]
port_to_connect_to = table_entry["port"]
connection_to_finger_table_node = Waldo.tcp_connect(
NodeSideB,
host_to_connect_to,
port_to_connect_to,
dht_node,
node_host_port_pair.host,
node_host_port_pair.port,
)
return dht_node
def start_coordinator():
math_endpoint = Waldo.math_endpoint_lib()
coordinator_master = Waldo.no_partner_create(
CoordinatorMaster, util_funcs.between, util_funcs.rand_uuid, math_endpoint, conf.MAX_NUMBER_FINGER_TABLE_ENTRIES
)
# begin listening for connections to coordinator master
Waldo.tcp_accept(
Coordinator, conf.COORDINATOR_HOST_PORT_PAIR.host, conf.COORDINATOR_HOST_PORT_PAIR.port, coordinator_master
)
return coordinator_master
def run_test():
uuid = util_funcs.hashed_uuid(None,'some id')
dht_node = Waldo.no_partner_create(
Node,uuid,util_funcs.distance,util_funcs.hashed_uuid,
util_funcs.between, util_funcs.debug_print)
data_to_add = [
('key','data'),
('a','ata'),
('m','wow')]
# add the data
for key,data in data_to_add:
dht_node.add_data(key,data)
# test that the added data is still there
for key,data in data_to_add:
value, num_hops, exists = dht_node.get_data(key)
if not exists:
print '\nErr: data should have existed in dht'
return False
if value != data:
print '\nErr: got incorrect value back for key'
return False
# test that data not added is not there
not_added_data_keys = ['woie','dow','mwoe']
for key in not_added_data_keys:
value,num_hops,exists = dht_node.get_data(key)
if exists:
print '\nErr: should not have received any data from false key'
return False
return True
def run_test():
dhta = create_single_node(HOSTA,PORTA)
dhtb = create_single_node(HOSTB,PORTB,True)
# now try to connect the nodes to each other. a connects to b.
connection = Waldo.tcp_connect(
NodeSideB,HOSTB,PORTB,dhta, HOSTA, PORTA)
connection.add_connection_to_node()
time.sleep(3)
# connection established between two sides.
# add several pieces of data
NUM_DATA_TO_ADD = 10
for i in range(0, NUM_DATA_TO_ADD):
dhta.add_data(str(i),str(i))
# check that the added pieces of data are returned when query
for i in range(0, NUM_DATA_TO_ADD):
value, num_hops, found = dhtb.get_data(str(i))
if not found:
print '\nError: did not find key expecting'
return False
if value != str(i):
print '\nError: incorrect value'
return False
return True
def create_single_node(listen_on_host, listen_on_port, should_accept=False):
uuid = util_funcs.hashed_uuid(None,str(random.random()))
dht_node = Waldo.no_partner_create(
Node,uuid,util_funcs.distance,util_funcs.hashed_uuid,
util_funcs.between,
util_funcs.debug_print)
if should_accept:
def on_connected(endpoint):
pass
# print '\nGot into on connected\n'
# listen for connections to dht node
Waldo.tcp_accept(
NodeSideA,
listen_on_host, listen_on_port,
dht_node,
listen_on_host, listen_on_port,
connected_callback = on_connected)
return dht_node
def run_test():
sideA, sideB = (
Waldo.same_host_create(SideA).same_host_create(SideB))
original_num = 30
ext_num = Waldo._waldo_classes['WaldoExtNumVariable'](
'garbage',sideA._host_uuid,False,original_num)
sideA.load_ext_num(ext_num)
# sequences + externals
amt_to_increment = 6
a,b = sideA.test_seq_arg(amt_to_increment)
if a != (b + amt_to_increment):
print '\nErr: incorrect numbers from sequence'
return False
return True
#Waldo Quiz 3/6/20
from graphics import *
from random import *
from Waldo import *
#Basics
w = GraphWin("WALDO MAKER 2000",600,600)
waldos = []
#Making two buttons
blue = Waldo(Point(230,300))
blue.setFill('blue')
blue.draw(w)
waldos.append(blue)
yellow = Waldo(Point(350,300))
yellow.setFill('yellow')
yellow.draw(w)
waldos.append(yellow)
#################################################
while True:
location = w.getMouse()
#Blue button
if(waldos[0].contains(location)):
for i in range(0,randint(5,20)):
red = Waldo(Point(randint(5,580),randint(5,580)))
red.draw(w)
waldos.append(red)
