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zephyr/modusocket: Initial version of usocket module for Zephyr.
So far, socket creation and closure is implemented.
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‎zephyr/modusocket.c‎

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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Linaro Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mpconfig.h"
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#ifdef MICROPY_PY_USOCKET
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#include "py/runtime.h"
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#include <zephyr.h>
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#include <net/net_context.h>
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#include <net/nbuf.h>
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typedef struct _socket_obj_t {
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mp_obj_base_t base;
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struct net_context *ctx;
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} socket_obj_t;
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STATIC const mp_obj_type_t socket_type;
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// Helper functions
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#define RAISE_ERRNO(x) { int _err = x; if (_err < 0) mp_raise_OSError(-_err); }
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// Methods
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STATIC void socket_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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socket_obj_t *self = self_in;
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if (self->ctx == NULL) {
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mp_printf(print, "<socket NULL>");
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} else {
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struct net_context *ctx = self->ctx;
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mp_printf(print, "<socket %p type=%d>", ctx, net_context_get_type(ctx));
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}
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}
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STATIC mp_obj_t socket_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 0, 4, false);
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socket_obj_t *socket = m_new_obj_with_finaliser(socket_obj_t);
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socket->base.type = type;
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int family = AF_INET;
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int socktype = SOCK_STREAM;
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int proto = -1;
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if (n_args >= 1) {
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family = mp_obj_get_int(args[0]);
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if (n_args >= 2) {
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socktype = mp_obj_get_int(args[1]);
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if (n_args >= 3) {
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proto = mp_obj_get_int(args[2]);
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}
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}
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}
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if (proto == -1) {
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proto = IPPROTO_TCP;
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if (socktype != SOCK_STREAM) {
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proto = IPPROTO_UDP;
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}
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}
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RAISE_ERRNO(net_context_get(family, socktype, proto, &socket->ctx));
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return socket;
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}
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STATIC mp_obj_t socket_close(mp_obj_t self_in) {
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socket_obj_t *socket = self_in;
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if (socket->ctx != NULL) {
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RAISE_ERRNO(net_context_put(socket->ctx));
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socket->ctx = NULL;
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_close_obj, socket_close);
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STATIC const mp_map_elem_t socket_locals_dict_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___del__), (mp_obj_t)&socket_close_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&socket_close_obj },
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};
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STATIC MP_DEFINE_CONST_DICT(socket_locals_dict, socket_locals_dict_table);
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STATIC const mp_obj_type_t socket_type = {
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{ &mp_type_type },
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.name = MP_QSTR_socket,
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.print = socket_print,
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.make_new = socket_make_new,
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//.protocol = &socket_stream_p,
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.locals_dict = (mp_obj_t)&socket_locals_dict,
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};
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STATIC const mp_map_elem_t mp_module_usocket_globals_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_usocket) },
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// objects
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{ MP_OBJ_NEW_QSTR(MP_QSTR_socket), (mp_obj_t)&socket_type },
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// class constants
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{ MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET), MP_OBJ_NEW_SMALL_INT(AF_INET) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET6), MP_OBJ_NEW_SMALL_INT(AF_INET6) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SOCK_STREAM), MP_OBJ_NEW_SMALL_INT(SOCK_STREAM) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SOCK_DGRAM), MP_OBJ_NEW_SMALL_INT(SOCK_DGRAM) },
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_usocket_globals, mp_module_usocket_globals_table);
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const mp_obj_module_t mp_module_usocket = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&mp_module_usocket_globals,
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};
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#endif // MICROPY_PY_USOCKET

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