Я пытаюсь отправить массив int произвольного размера с нескольких клиентов на сервер, который будет продолжать добавлять вновь полученный массив int в глобальный массив и возвращать накопленный отсортированный массив клиенту. Мой клиентский код может отправлять и получать массив int на / с сервера. Но сервер не может читать массив int, сортировать и отправлять обратно клиенту (Мой сервер может просто читать и отправлять исходный массив int клиенту, но это не то, что я хочу).
В моем коде сервера комментируемая часть не работает. Я очень новичок в программировании на Python и сокетах.
Client.py
# Import socket module
import socket, pickle
import random
def Main():
# local host IP '127.0.0.1'
host = '127.0.0.1'
# Define the port on which you want to connect
port = 12345
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# connect to server on local computer
s.connect((host, port))
while True:
# Generate Random array to be sent to server
arr = []
# Generate random size between 10 and 20
# random_size = random.randint(10, 20)
random_size = random.randint(1, 3)
for i in range(0, random_size):
arr.append(random.randint(0, 10))
print('Array = ' + str(arr))
# Serialise the array to byte stream before sending to server
data_stream = pickle.dumps(arr)
#Array byte stream sent to server
s.send(data_stream)
# messaga received from server
data = s.recv(1024)
#deserialise the byte stream into array after receiving from server
data_arr = pickle.loads(data)
# print the received message
#print('Received', repr(data_arr))
print('Received from Server: ', data_arr)
# ask the client whether he wants to continue
ans = input('\nDo you want to continue(y/n) :')
if ans == 'y':
continue
else:
break
# close the connection
s.close()
if __name__ == '__main__':
Main()
Server.py
# import socket programming library
import socket, pickle
# import thread module
from _thread import *
import threading
from sortedcontainers import SortedList
import bisect
#Container to store accumulated int array from multiple clients
sl = SortedList()
# To protect
print_lock = threading.Lock()
# thread fuction
def threaded(c):
while True:
# data received from client
data = c.recv(1024)
# Data from client can't be printed =============== why?
print(data)
if not data:
print('No data received from client - Bye')
# lock released on exit
print_lock.release()
break
c.send(data) # ===> It works but I want to add received int array into global sl before sending back to client
'''
////////////////////// Code in this comment section is not working //////////////////
#Deserialise Byte stream array from client into array list
data_arr = pickle.loads(data)
#Add received int array from client to global sortedList sl in sorted order
for i in data_arr:
bisect.insort(sl, i)
sl.add(i)
print(sl)
#Serialise sorted sl into Byte stream before sending to client
data_stream = pickle.dumps(sl)
# send back sorted integer list to client
c.send(data_stream)
'''
# connection will never be closed, server will run always
#c.close()
def Main():
host = ""
# We can use a port on our specific computer
# But in this case it is 12345 (it can be anything)
port = 12345
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((host, port))
print("socket binded to post", port)
# put the socket into listening mode
s.listen(5)
print("socket is listening")
# a forever loop until client wants to exit
while True:
# establish connection with client
c, addr = s.accept()
# lock acquired by client
print_lock.acquire()
print('Connected to :', addr[0], ':', addr[1])
# Start a new thread and return its identifier
start_new_thread(threaded, (c,))
s.close()
if __name__ == '__main__':
Main()