file.c

/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 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 <stdio.h>
#include <errno.h>

#include "mpconfig.h"
#include "nlr.h"
#include "misc.h"
#include "qstr.h"
#include "obj.h"
#include "runtime.h"
#include "stream.h"
#include "file.h"
#include "ff.h"

extern const mp_obj_type_t mp_type_fileio;
extern const mp_obj_type_t mp_type_textio;

// this table converts from FRESULT to POSIX errno
const byte fresult_to_errno_table[20] = {
    [FR_OK] = 0,
    [FR_DISK_ERR] = EIO,
    [FR_INT_ERR] = EIO,
    [FR_NOT_READY] = EBUSY,
    [FR_NO_FILE] = ENOENT,
    [FR_NO_PATH] = ENOENT,
    [FR_INVALID_NAME] = EINVAL,
    [FR_DENIED] = EACCES,
    [FR_EXIST] = EEXIST,
    [FR_INVALID_OBJECT] = EINVAL,
    [FR_WRITE_PROTECTED] = EROFS,
    [FR_INVALID_DRIVE] = ENODEV,
    [FR_NOT_ENABLED] = ENODEV,
    [FR_NO_FILESYSTEM] = ENODEV,
    [FR_MKFS_ABORTED] = EIO,
    [FR_TIMEOUT] = EIO,
    [FR_LOCKED] = EIO,
    [FR_NOT_ENOUGH_CORE] = ENOMEM,
    [FR_TOO_MANY_OPEN_FILES] = EMFILE,
    [FR_INVALID_PARAMETER] = EINVAL,
};

typedef struct _pyb_file_obj_t {
    mp_obj_base_t base;
    FIL fp;
} pyb_file_obj_t;