-
-
Save sooop/b849fabf08a107d285f33dda5c6d9c49 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
from multiprocessing import Process | |
import selectors | |
import socket | |
import time | |
import random | |
def read_handler( | |
sock: socket.socket, | |
sel_: selectors.BaseSelector): | |
data = sock.recv(1000) | |
if data: | |
print(f'echoing: {repr(data)} | ' | |
f'{sock.getpeername()}') | |
time.sleep(random.randrange(1, 10) / 10) | |
sock.send(data) | |
else: | |
print('closing...') | |
sel_.unregister(sock) | |
sock.close() | |
def accept_handler( | |
sock: socket.socket, | |
sel_: selectors.BaseSelector): | |
conn: socket.socket | |
addr: str | |
conn, addr = sock.accept() | |
print(f'accepted: {conn.getpeername()} from {addr}') | |
conn.setblocking(False) | |
sel_.register(conn, selectors.EVENT_READ, read_handler) | |
def start_server(port=5577): | |
sel = selectors.DefaultSelector() | |
sock = socket.socket() | |
sock.bind(('localhost', port)) | |
sock.setblocking(False) | |
sock.listen(100) | |
sel.register(sock, selectors.EVENT_READ, accept_handler) | |
while True: | |
events = sel.select() | |
for key, mask in events: | |
callback = key.data | |
callback(key.fileobj, sel) | |
def start_client(word: str, port=5577): | |
sock = socket.socket() | |
sock.connect(('localhost', port)) | |
sock.sendall(word.encode()) | |
time.sleep(random.randrange(1, 5) / 10) | |
data = sock.recv(1024) | |
print(data.decode()) | |
sock.close() | |
def main(): | |
srv = Process(target=start_server) | |
srv.start() | |
words = 'apple hello mango world banana organe'.split() | |
for i in range(10): | |
Process(target=start_client, | |
args=(f'[{i+1}] ' + random.choice(words),))\ | |
.start() | |
srv.join(9) | |
srv.kill() | |
if __name__ == '__main__': | |
main() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment