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build3/python/src/py/moduerrno.c 3.79 KB
6663b6c9   adorian   projet complet av...
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  /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2016 Damien P. George
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #include <assert.h>
  #include <string.h>
  
  #include "py/obj.h"
  #include "py/mperrno.h"
  
  #if MICROPY_PY_UERRNO
  
  // This list can be defined per port in mpconfigport.h to tailor it to a
  // specific port's needs.  If it's not defined then we provide a default.
  #ifndef MICROPY_PY_UERRNO_LIST
  #define MICROPY_PY_UERRNO_LIST \
      X(EPERM) \
      X(ENOENT) \
      X(EIO) \
      X(EBADF) \
      X(EAGAIN) \
      X(ENOMEM) \
      X(EACCES) \
      X(EEXIST) \
      X(ENODEV) \
      X(EISDIR) \
      X(EINVAL) \
      X(EOPNOTSUPP) \
      X(EADDRINUSE) \
      X(ECONNABORTED) \
      X(ECONNRESET) \
      X(ENOBUFS) \
      X(ENOTCONN) \
      X(ETIMEDOUT) \
      X(ECONNREFUSED) \
      X(EHOSTUNREACH) \
      X(EALREADY) \
      X(EINPROGRESS) \
  
  #endif
  
  #if MICROPY_PY_UERRNO_ERRORCODE
  STATIC const mp_rom_map_elem_t errorcode_table[] = {
      #define X(e) { MP_ROM_INT(MP_ ## e), MP_ROM_QSTR(MP_QSTR_## e) },
      MICROPY_PY_UERRNO_LIST
      #undef X
  };
  
  STATIC const mp_obj_dict_t errorcode_dict = {
      .base = {&mp_type_dict},
      .map = {
          .all_keys_are_qstrs = 0, // keys are integers
          .is_fixed = 1,
          .is_ordered = 1,
          .used = MP_ARRAY_SIZE(errorcode_table),
          .alloc = MP_ARRAY_SIZE(errorcode_table),
          .table = (mp_map_elem_t*)(mp_rom_map_elem_t*)errorcode_table,
      },
  };
  #endif
  
  STATIC const mp_rom_map_elem_t mp_module_uerrno_globals_table[] = {
      { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_uerrno) },
      #if MICROPY_PY_UERRNO_ERRORCODE
      { MP_ROM_QSTR(MP_QSTR_errorcode), MP_ROM_PTR(&errorcode_dict) },
      #endif
  
      #define X(e) { MP_ROM_QSTR(MP_QSTR_## e), MP_ROM_INT(MP_ ## e) },
      MICROPY_PY_UERRNO_LIST
      #undef X
  };
  
  STATIC MP_DEFINE_CONST_DICT(mp_module_uerrno_globals, mp_module_uerrno_globals_table);
  
  const mp_obj_module_t mp_module_uerrno = {
      .base = { &mp_type_module },
      .globals = (mp_obj_dict_t*)&mp_module_uerrno_globals,
  };
  
  qstr mp_errno_to_str(mp_obj_t errno_val) {
      #if MICROPY_PY_UERRNO_ERRORCODE
      // We have the errorcode dict so can do a lookup using the hash map
      mp_map_elem_t *elem = mp_map_lookup((mp_map_t*)&errorcode_dict.map, errno_val, MP_MAP_LOOKUP);
      if (elem == NULL) {
          return MP_QSTR_NULL;
      } else {
          return MP_OBJ_QSTR_VALUE(elem->value);
      }
      #else
      // We don't have the errorcode dict so do a simple search in the modules dict
      for (size_t i = 0; i < MP_ARRAY_SIZE(mp_module_uerrno_globals_table); ++i) {
          if (errno_val == mp_module_uerrno_globals_table[i].value) {
              return MP_OBJ_QSTR_VALUE(mp_module_uerrno_globals_table[i].key);
          }
      }
      return MP_QSTR_NULL;
      #endif
  }
  
  #endif //MICROPY_PY_UERRNO