python 并发编程 基于gevent模块 协程池 实现并发的套接字通信

from socket import *

client = socket(AF_INET,SOCK_STREAM)
client.connect((‘127.0.0.1‘,8080))

while True:
    msg = input(">>>:").strip()
    if not msg:break
    client.send(msg.encode("utf-8"))
    data = client.recv(1024)
    print(data.decode("utf-8"))

client.close()

from gevent import monkey;monkey.patch_all()
import gevent
from gevent.pool import Pool
from socket import *

def communicate(conn):
    ‘‘‘ 通信功能 ‘‘‘
    while True:
        try:
            data = conn.recv(1024)
            if not data:break
            conn.send(data.upper())

        except ConnectionResetError:
            break

    conn.close()

def server(ip,port):
    ‘‘‘ 负责建立连接 accept‘‘‘

    server = socket(AF_INET,SOCK_STREAM)
    server.bind((ip,port))
    server.listen(5)

    while True:
        conn,addr = server.accept()
        c = pool.spawn(communicate,conn)

    server.close()


if __name__ == "__main__":
    pool = Pool(5)
    g = pool.spawn(server,‘127.0.0.1‘,8080)
    g.join()