800*320工程文件+初始demo提交

SW/components/modules/fatfs/documents/res/app2.c

@@ -0,0 +1,81 @@
+/*------------------------------------------------------------/
+/ 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.
+*/
+
+
+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); /* 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;  /* 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) /* How to use */
+{
+    FRESULT fr;
+    FATFS fs;
+    TCHAR buff[256];
+    FILINFO fno;
+
+
+    f_mount(&fs, _T("5:"), 0);
+
+    /* Directory to be deleted */
+    _tcscpy(buff, _T("5:dir"));
+
+    /* Delete the directory */
+    fr = delete_node(buff, sizeof buff / sizeof buff[0], &fno);
+
+    /* Check the result */
+    if (fr) {
+        _tprintf(_T("Failed to delete the directory. (%u)\n"), fr);
+        return fr;
+    } else {
+        _tprintf(_T("The directory and the contents have successfully been deleted.\n"), buff);
+        return 0;
+    }
+}
+
+
+