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FatFs R0.13c, released October 14, 2018

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This commit is contained in:
Christopher Williams
2019-01-09 17:13:03 -07:00
parent ff793da7d3
commit f2bf030bfd
29 changed files with 361 additions and 257 deletions
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documents/res/app2.c
+45 -32
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@@ -1,65 +1,78 @@
/*------------------------------------------------------------/
/ Remove all contents of a directory
/ This function works regardless of FF_FS_RPATH.
/------------------------------------------------------------*/
/ Delete a sub-directory even if it contains any file
/-------------------------------------------------------------/
/ The delete_node() function is for R0.12+.
/ It works regardless of FF_FS_RPATH.
*/
FILINFO fno;
FRESULT empty_directory (
char* path /* Working buffer filled with start directory */
FRESULT delete_node (
TCHAR* path, /* Path name buffer with the sub-directory to delete */
UINT sz_buff, /* Size of path name buffer (items) */
FILINFO* fno /* Name read buffer */
)
{
UINT i, j;
FRESULT fr;
DIR dir;
fr = f_opendir(&dir, path);
if (fr == FR_OK) {
for (i = 0; path[i]; i++) ;
path[i++] = '/';
for (;;) {
fr = f_readdir(&dir, &fno);
if (fr != FR_OK || !fno.fname[0]) break;
if (_FS_RPATH && fno.fname[0] == '.') continue;
j = 0;
do
path[i+j] = fno.fname[j];
while (fno.fname[j++]);
if (fno.fattrib & AM_DIR) {
fr = empty_directory(path);
if (fr != FR_OK) break;
fr = f_opendir(&dir, path); /* Open the sub-directory to make it empty */
if (fr != FR_OK) return fr;
for (i = 0; path[i]; i++) ; /* Get current path length */
path[i++] = _T('/');
for (;;) {
fr = f_readdir(&dir, fno); /* Get a directory item */
if (fr != FR_OK || !fno->fname[0]) break; /* End of directory? */
j = 0;
do { /* Make a path name */
if (i + j >= sz_buff) { /* Buffer over flow? */
fr = 100; break; /* Fails with 100 when buffer overflow */
}
path[i + j] = fno->fname[j];
} while (fno->fname[j++]);
if (fno->fattrib & AM_DIR) { /* Item is a sub-directory */
fr = delete_node(path, sz_buff, fno);
} else { /* Item is a file */
fr = f_unlink(path);
if (fr != FR_OK) break;
}
path[--i] = '\0';
closedir(&dir);
if (fr != FR_OK) break;
}
path[--i] = 0; /* Restore the path name */
f_closedir(&dir);
if (fr == FR_OK) fr = f_unlink(path); /* Delete the empty sub-directory */
return fr;
}
int main (void)
int main (void) /* How to use */
{
FRESULT fr;
FATFS fs;
char buff[256]; /* Working buffer */
TCHAR buff[256];
FILINFO fno;
f_mount(&fs, _T("5:"), 0);
f_mount(&fs, "", 0);
/* Directory to be deleted */
_tcscpy(buff, _T("5:dir"));
strcpy(buff, "/"); /* Directory to be emptied */
fr = empty_directory(buff);
/* Delete the directory */
fr = delete_node(buff, sizeof buff / sizeof buff[0], &fno);
/* Check the result */
if (fr) {
printf("Function failed. (%u)\n", fr);
_tprintf(_T("Failed to delete the directory. (%u)\n"), fr);
return fr;
} else {
printf("All contents in the %s are successfully removed.\n", buff);
_tprintf(_T("The directory and the contents have successfully been deleted.\n"), buff);
return 0;
}
}