110 lines
3.6 KiB
C
110 lines
3.6 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) 2014 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 "py/mpconfig.h"
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#if MICROPY_VFS_FAT
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#include <string.h>
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#include "py/nlr.h"
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#include "py/runtime.h"
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#include "lib/oofatfs/ff.h"
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#include "extmod/vfs_fat.h"
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#include "py/lexer.h"
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typedef struct _mp_vfs_fat_ilistdir_it_t {
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mp_obj_base_t base;
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mp_fun_1_t iternext;
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bool is_str;
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FF_DIR dir;
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} mp_vfs_fat_ilistdir_it_t;
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STATIC mp_obj_t mp_vfs_fat_ilistdir_it_iternext(mp_obj_t self_in) {
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mp_vfs_fat_ilistdir_it_t *self = MP_OBJ_TO_PTR(self_in);
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for (;;) {
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FILINFO fno;
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FRESULT res = f_readdir(&self->dir, &fno);
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char *fn = fno.fname;
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if (res != FR_OK || fn[0] == 0) {
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// stop on error or end of dir
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break;
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}
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// Note that FatFS already filters . and .., so we don't need to
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// make 3-tuple with info about this entry
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mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(3, NULL));
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if (self->is_str) {
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t->items[0] = mp_obj_new_str(fn, strlen(fn), false);
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} else {
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t->items[0] = mp_obj_new_bytes((const byte*)fn, strlen(fn));
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}
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if (fno.fattrib & AM_DIR) {
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// dir
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t->items[1] = MP_OBJ_NEW_SMALL_INT(MP_S_IFDIR);
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} else {
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// file
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t->items[1] = MP_OBJ_NEW_SMALL_INT(MP_S_IFREG);
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}
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t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // no inode number
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return MP_OBJ_FROM_PTR(t);
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}
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// ignore error because we may be closing a second time
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f_closedir(&self->dir);
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return MP_OBJ_STOP_ITERATION;
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}
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mp_obj_t fat_vfs_ilistdir2(fs_user_mount_t *vfs, const char *path, bool is_str_type) {
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mp_vfs_fat_ilistdir_it_t *iter = m_new_obj(mp_vfs_fat_ilistdir_it_t);
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iter->base.type = &mp_type_polymorph_iter;
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iter->iternext = mp_vfs_fat_ilistdir_it_iternext;
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iter->is_str = is_str_type;
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FRESULT res = f_opendir(&vfs->fatfs, &iter->dir, path);
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if (res != FR_OK) {
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mp_raise_OSError(fresult_to_errno_table[res]);
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}
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return MP_OBJ_FROM_PTR(iter);
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}
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mp_import_stat_t fat_vfs_import_stat(fs_user_mount_t *vfs, const char *path) {
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FILINFO fno;
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assert(vfs != NULL);
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FRESULT res = f_stat(&vfs->fatfs, path, &fno);
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if (res == FR_OK) {
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if ((fno.fattrib & AM_DIR) != 0) {
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return MP_IMPORT_STAT_DIR;
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} else {
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return MP_IMPORT_STAT_FILE;
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}
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}
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return MP_IMPORT_STAT_NO_EXIST;
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}
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#endif // MICROPY_VFS_FAT
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