gevent 实现单线程下的socket链接

通过gevent实现socket的多并发

server 端：

import gevent
from gevent import socket, monkey

monkey.patch_all()   #进行IO标记

def server(port):
    s = socket.socket()
    s.bind(('localhost', port))
    s.listen()
    while True:
        conn, addr = s.accept()
        gevent.spawn(handle, conn) #一接收信号就进行IO切换

def handle(conn):
    try:
      data = conn.recv(1024)
      print(data)
      conn.send(data)
      if not data:
          conn.shutdown(socket.SHUT_WR) #如果没有数据就关掉socket
    except exception as ex:
        print(ex)
    finally:
        conn.close()

if __name__=='__main__':
    server(8000)

client 端：

import socket, time

client = socket.socket()
client.connect(('localhost', 6000))
while True:
    data = input('>>')
    client.send(data.encode('utf-8'))
    if not data:
        break

    d = client.recv(1024)
    print('recv:', d.decode())