appManager.py 文件源码

def bindServer(self):
        self.server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        if platform.system() != 'Darwin':
            self.server.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)   # After 1 second, start KEEPALIVE
            self.server.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 1)  # TCP Idle true 
            self.server.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 5) # 5 seconds in between keepalive pings
            self.server.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 5)   # 5 max fails

        # Bind the socket to the port
        while True:
            try:
                self.server.bind(('', APP_SERVER_PORT))
            except:
                logger.log("[app]: Can't bind, address in use. Retrying in 1 second.")
                time.sleep(1.0)
            else:
                break

        logger.log("[app]: Ready for connections from app.")

        # Listen for incoming connections
        self.server.listen(0)

    # establishes a connection to a Solo app