【Python】阻塞模型

from socket import *


class Server(object):
    def __init__(self, ip_bind=('127.0.0.1', 8080)):
        self.head_buffer = 1024
        self.coding = 'utf-8'
        self.server = socket(AF_INET, SOCK_STREAM)
        self.server.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
        self.server.bind(ip_bind)
        self.server.listen(50)
        self.server.setblocking(True)   #  默认就是True 基于阻塞模型IO

    def run(self):
        while 1:
            try:
                conn, address_link = self.server.accept()
                self.talk(conn)
            except ConnectionResetError:
                break
        self.server.close()

    def talk(self, conn):
        while 1:
            try:
                repo = conn.recv(self.head_buffer)
                if not repo: break
                data = repo.decode(self.coding)
                conn.send(data.upper().encode(self.coding))
            except ConnectionResetError:
                break
        conn.close()