125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
/*
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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) 2016 Damien P. George
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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 <assert.h>
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#include <string.h>
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#include "py/obj.h"
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#include "py/mperrno.h"
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#if MICROPY_PY_ERRNO
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// This list can be defined per port in mpconfigport.h to tailor it to a
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// specific port's needs. If it's not defined then we provide a default.
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#ifndef MICROPY_PY_ERRNO_LIST
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#define MICROPY_PY_ERRNO_LIST \
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X(EPERM) \
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X(ENOENT) \
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X(EIO) \
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X(EBADF) \
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X(EAGAIN) \
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X(ENOMEM) \
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X(EACCES) \
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X(EEXIST) \
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X(ENODEV) \
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X(EISDIR) \
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X(EINVAL) \
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X(EOPNOTSUPP) \
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X(EADDRINUSE) \
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X(ECONNABORTED) \
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X(ECONNRESET) \
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X(ENOBUFS) \
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X(ENOTCONN) \
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X(ETIMEDOUT) \
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X(ECONNREFUSED) \
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X(EHOSTUNREACH) \
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X(EALREADY) \
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X(EINPROGRESS) \
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#endif
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#if MICROPY_PY_ERRNO_ERRORCODE
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STATIC const mp_rom_map_elem_t errorcode_table[] = {
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#define X(e) { MP_ROM_INT(MP_##e), MP_ROM_QSTR(MP_QSTR_##e) },
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MICROPY_PY_ERRNO_LIST
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#undef X
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};
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STATIC const mp_obj_dict_t errorcode_dict = {
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.base = {&mp_type_dict},
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.map = {
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.all_keys_are_qstrs = 0, // keys are integers
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.is_fixed = 1,
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.is_ordered = 1,
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.used = MP_ARRAY_SIZE(errorcode_table),
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.alloc = MP_ARRAY_SIZE(errorcode_table),
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.table = (mp_map_elem_t *)(mp_rom_map_elem_t *)errorcode_table,
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},
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};
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#endif
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STATIC const mp_rom_map_elem_t mp_module_errno_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_errno) },
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#if MICROPY_PY_ERRNO_ERRORCODE
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{ MP_ROM_QSTR(MP_QSTR_errorcode), MP_ROM_PTR(&errorcode_dict) },
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#endif
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#define X(e) { MP_ROM_QSTR(MP_QSTR_##e), MP_ROM_INT(MP_##e) },
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MICROPY_PY_ERRNO_LIST
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#undef X
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_errno_globals, mp_module_errno_globals_table);
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const mp_obj_module_t mp_module_errno = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&mp_module_errno_globals,
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};
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MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_errno, mp_module_errno);
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qstr mp_errno_to_str(mp_obj_t errno_val) {
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#if MICROPY_PY_ERRNO_ERRORCODE
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// We have the errorcode dict so can do a lookup using the hash map
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mp_map_elem_t *elem = mp_map_lookup((mp_map_t *)&errorcode_dict.map, errno_val, MP_MAP_LOOKUP);
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if (elem == NULL) {
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return MP_QSTRnull;
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} else {
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return MP_OBJ_QSTR_VALUE(elem->value);
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}
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#else
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// We don't have the errorcode dict so do a simple search in the modules dict
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for (size_t i = 0; i < MP_ARRAY_SIZE(mp_module_errno_globals_table); ++i) {
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if (errno_val == mp_module_errno_globals_table[i].value) {
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return MP_OBJ_QSTR_VALUE(mp_module_errno_globals_table[i].key);
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}
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}
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return MP_QSTRnull;
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#endif
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}
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#endif // MICROPY_PY_ERRNO
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