MicroPython Forum (Archive)

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>>> import usocket as socket
>>> sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>> sock.settimeout(2)
>>> sock.connect(("192.168.4.2",80))		// take more than 15 seconds
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OSError: [Errno 113] ECONNABORTED

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import usocket

sock = usocket.socket(usocket.AF_INET, usocket.SOCK_DGRAM)
send_data = b'I am going to listen for 5 seconds'
sock.settimeout(5) #  this sets the listening time

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sent = sock.sendto(send_data, server_address)

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>>> help (socket)
object <module 'usocket'> is of type module
  __name__ -- usocket
  __init__ -- <function>
  socket -- <class 'socket'>
  getaddrinfo -- <function>
  AF_INET -- 2
  AF_INET6 -- 10
  SOCK_STREAM -- 1
  SOCK_DGRAM -- 2
  SOCK_RAW -- 3
  IPPROTO_TCP -- 6
  IPPROTO_UDP -- 17
  IPPROTO_IP -- 0
  SOL_SOCKET -- 4095
  SO_REUSEADDR -- 4
  IP_ADD_MEMBERSHIP -- 3

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STATIC mp_obj_t socket_connect(const mp_obj_t arg0, const mp_obj_t arg1) {
    socket_obj_t *self = MP_OBJ_TO_PTR(arg0);
    struct addrinfo *res;
    _socket_getaddrinfo(arg1, &res);
    MP_THREAD_GIL_EXIT();
    self->state = SOCKET_STATE_CONNECTED;
    int r = lwip_connect(self->fd, res->ai_addr, res->ai_addrlen);
    MP_THREAD_GIL_ENTER();
    lwip_freeaddrinfo(res);
    if (r != 0) {
        mp_raise_OSError(errno);
    }

    return mp_const_none;
}

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    // ...
    _socket_getaddrinfo(arg1, &res);
    // ...
    int r = lwip_connect(self->fd, res->ai_addr, res->ai_addrlen);
    // ...