C++ (Cpp) lwip_udp_receive Exemples

Exemple #1

Fichier : modlwip.c Projet : learnforpractice/micropython

STATIC mp_obj_t lwip_socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
    lwip_socket_obj_t *socket = self_in;
    int _errno;

    lwip_socket_check_connected(socket);

    mp_int_t len = mp_obj_get_int(len_in);
    vstr_t vstr;
    vstr_init_len(&vstr, len);

    mp_uint_t ret = 0;
    switch (socket->type) {
        case MOD_NETWORK_SOCK_STREAM: {
            ret = lwip_tcp_receive(socket, (byte*)vstr.buf, len, &_errno);
            break;
        }
        case MOD_NETWORK_SOCK_DGRAM: {
            ret = lwip_udp_receive(socket, (byte*)vstr.buf, len, NULL, NULL, &_errno);
            break;
        }
    }
    if (ret == -1) {
        mp_raise_OSError(_errno);
    }

    if (ret == 0) {
        return mp_const_empty_bytes;
    }
    vstr.len = ret;
    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}

Exemple #2

Fichier : modlwip.c Projet : learnforpractice/micropython

STATIC mp_uint_t lwip_socket_read(mp_obj_t self_in, void *buf, mp_uint_t size, int *errcode) {
    lwip_socket_obj_t *socket = self_in;

    switch (socket->type) {
        case MOD_NETWORK_SOCK_STREAM:
            return lwip_tcp_receive(socket, buf, size, errcode);
        case MOD_NETWORK_SOCK_DGRAM:
            return lwip_udp_receive(socket, buf, size, NULL, NULL, errcode);
    }
    // Unreachable
    return MP_STREAM_ERROR;
}

Exemple #3

Fichier : modlwip.c Projet : opensourcekids/micropython

STATIC mp_obj_t lwip_socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
    lwip_socket_obj_t *socket = self_in;
    int _errno;

    if (socket->pcb == NULL) {
        // not connected
        _errno = error_lookup_table[-(socket->connected)];
        socket->connected = -16;
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    mp_int_t len = mp_obj_get_int(len_in);
    vstr_t vstr;
    vstr_init_len(&vstr, len);
    byte ip[4];
    mp_uint_t port;

    mp_uint_t ret = 0;
    switch (socket->type) {
        case MOD_NETWORK_SOCK_STREAM: {
            memcpy(ip, &socket->peer, 4);
            port = (mp_uint_t) socket->peer_port;
            ret = lwip_tcp_receive(socket, (byte*)vstr.buf, len, &_errno);
            break;
        }
        case MOD_NETWORK_SOCK_DGRAM: {
            ret = lwip_udp_receive(socket, (byte*)vstr.buf, len, ip, &port, &_errno);
            break;
        }
    }
    if (ret == -1) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    mp_obj_t tuple[2];
    if (ret == 0) {
        tuple[0] = mp_const_empty_bytes;
    } else {
        vstr.len = ret;
        tuple[0] = mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
    }
    tuple[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
    return mp_obj_new_tuple(2, tuple);
}

Exemple #4

Fichier : modlwip.c Projet : learnforpractice/micropython

STATIC mp_obj_t lwip_socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
    lwip_socket_obj_t *socket = self_in;
    int _errno;

    lwip_socket_check_connected(socket);

    mp_int_t len = mp_obj_get_int(len_in);
    vstr_t vstr;
    vstr_init_len(&vstr, len);
    byte ip[4];
    mp_uint_t port;

    mp_uint_t ret = 0;
    switch (socket->type) {
        case MOD_NETWORK_SOCK_STREAM: {
            memcpy(ip, &socket->peer, sizeof(socket->peer));
            port = (mp_uint_t) socket->peer_port;
            ret = lwip_tcp_receive(socket, (byte*)vstr.buf, len, &_errno);
            break;
        }
        case MOD_NETWORK_SOCK_DGRAM: {
            ret = lwip_udp_receive(socket, (byte*)vstr.buf, len, ip, &port, &_errno);
            break;
        }
    }
    if (ret == -1) {
        mp_raise_OSError(_errno);
    }

    mp_obj_t tuple[2];
    if (ret == 0) {
        tuple[0] = mp_const_empty_bytes;
    } else {
        vstr.len = ret;
        tuple[0] = mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
    }
    tuple[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
    return mp_obj_new_tuple(2, tuple);
}

Exemple #5

Fichier : modlwip.c Projet : opensourcekids/micropython

STATIC mp_obj_t lwip_socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
    lwip_socket_obj_t *socket = self_in;
    int _errno;

    if (socket->pcb == NULL) {
        // not connected
        _errno = error_lookup_table[-(socket->connected)];
        socket->connected = -16;
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    mp_int_t len = mp_obj_get_int(len_in);
    vstr_t vstr;
    vstr_init_len(&vstr, len);

    mp_uint_t ret = 0;
    switch (socket->type) {
        case MOD_NETWORK_SOCK_STREAM: {
            ret = lwip_tcp_receive(socket, (byte*)vstr.buf, len, &_errno);
            break;
        }
        case MOD_NETWORK_SOCK_DGRAM: {
            ret = lwip_udp_receive(socket, (byte*)vstr.buf, len, NULL, NULL, &_errno);
            break;
        }
    }
    if (ret == -1) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    if (ret == 0) {
        return mp_const_empty_bytes;
    }
    vstr.len = ret;
    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}