def listen_server(rabbitmq_username, rabbitmq_password, host,
data_changed_flags2, queue, scoreboard, channel):
print('[ LISTEN ] Start listening...')
start_listening.authenticate_login = handle_config.read_config_json()
conn, cursor = manage_database.initialize_table()
manage_local_ids.initialize_local_id(cursor)
start_listening.cursor = cursor
try:
# creds = pika.PlainCredentials(rabbitmq_username, rabbitmq_password)
# params = pika.ConnectionParameters(host = host, credentials = creds, heartbeat=0, blocked_connection_timeout=0)
# connection = pika.BlockingConnection(params)
# channel = connection.channel()
start_listening.channel = channel
# start_listening.connection = connection
start_listening.host = host
start_listening.data_changed_flags = data_changed_flags2
start_listening.queue = queue
start_listening.scoreboard = scoreboard
start_listening.channel.basic_consume(
queue=start_listening.authenticate_login["Username"],
on_message_callback=start_listening.server_response_handler,
auto_ack=True)
start_listening.channel.start_consuming()
except (KeyboardInterrupt, SystemExit):
print('[ DELETE ] Queue ' +
start_listening.authenticate_login["Username"] +
' deleted...')
print("[ STOP ] Keyboard interrupt")
start_listening.channel.stop_consuming()
start_listening.channel.queue_delete(
start_listening.authenticate_login["Username"])
return
except Exception as error:
print('[ ERROR ] Shit ', error)
from database_management import manage_database
import os
rabbitmq_username = '******'
rabbitmq_password = '******'
host = 'localhost'
conn, cur = manage_database.initialize_table()
manage_database.reset_database(conn)
for i in os.listdir('./Solution/'):
os.remove('./Solution/'+i)
def main():
#################################
# Initialize the database and returns the cursor
print("[ SETUP ] INITIALISING DATABASE ............")
conn, cursor = manage_database.initialize_table()
manage_local_ids.initialize_local_id(cursor)
##################################
# Create variables/lists that will be shared between processes
data_changed_flags = multiprocessing.Array('i', 10)
queue = multiprocessing.Queue()
scoreboard = multiprocessing.Queue()
for i in range(10):
data_changed_flags[i] = 0
# index value meaning
# 0 0/1/2/3/4 Contest Not Started/Contest has been started/Running/Contest Stopped/Time Up
# 1 0/1/2 Initialize/Verdict Not received/Verdict Received
# 2 0/1/2 Initiaize/Query response Not received/Query response received
# 3 1 Server NOt Accepting Submission
# 4 0/1/3 Timer Stopped/ Timer running/Update Timer
# 5 0/1/2 Proper Connection/Single Client Disconnected/All Clients Disconnected
# 6 1 Leader Board Update
# 7 1 Problem Edited
# 8 1 Blockd user
# 9 1 run id received
##################################
# Makes connection with RabbitMQ
# And returns channel,connection
print("[ SETUP ] ESTABLISHING CONNECTION .........")
try:
channel, connection = manage_connection.initialize_connection(
rabbitmq_username, rabbitmq_password, host)
except Exception as error:
print(str(error))
try:
print("----------------BitsOJ v1.0----------------")
# Starting GUI for login portal
start_interface(connection, data_changed_flags, queue)
print("[ LOGIN ] Successful")
except Exception as error:
ex_type, ex_obj, ex_tb = sys.exc_info()
f_name = os.path.split(ex_tb.tb_frame.f_code.co_filename)[1]
print(ex_type, f_name, ex_tb.tb_lineno)
print("[ CRITICAL ] GUI could not be loaded! " + str(error))
try:
# Manage Threads
print('[ SETUP ] Initialising threads....')
listen_pid = manage_process(rabbitmq_username, rabbitmq_password,
cursor, host, data_changed_flags, queue,
scoreboard)
except Exception as error:
ex_type, ex_obj, ex_tb = sys.exc_info()
f_name = os.path.split(ex_tb.tb_frame.f_code.co_filename)[1]
print(ex_type, f_name, ex_tb.tb_lineno)
print("[ CRITICAL ] GUI could not be loaded! " + str(error))
try:
# After successful login
# Starting Main GUI
init_gui(channel, data_changed_flags, queue, scoreboard)
except Exception as error:
ex_type, ex_obj, ex_tb = sys.exc_info()
f_name = os.path.split(ex_tb.tb_frame.f_code.co_filename)[1]
print(ex_type, f_name, ex_tb.tb_lineno)
print("[ CRITICAL ] GUI could not be loaded! " + str(error))
print("[EXIT] Signal Passed")
os.kill(listen_pid, signal.SIGINT)
sleep(1)
print(" ################################################")
print(" #----------ClIENT CLOSED SUCCESSFULLY----------#")
print(" ################################################")