import RT-Thread@9217865c without bsp, libcpu and components/net

components/dfs/dfs_v1/filesystems/tmpfs/dfs_tmpfs.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-10-24     flybreak     the first version
+ */
+
+#ifndef __DFS_TMPFS_H__
+#define __DFS_TMPFS_H__
+
+#include <rtthread.h>
+
+#define TMPFS_NAME_MAX  32
+#define TMPFS_MAGIC     0x0B0B0B0B
+
+#define TMPFS_TYPE_FILE   0x00
+#define TMPFS_TYPE_DIR    0x01
+
+struct tmpfs_sb;
+
+struct tmpfs_file
+{
+    rt_uint32_t      type;     /* file type */
+    char name[TMPFS_NAME_MAX]; /* file name */
+    rt_list_t     subdirs;     /* file subdir list */
+    rt_list_t     sibling;     /* file sibling list */
+    struct tmpfs_sb *sb;       /* superblock ptr */
+    rt_uint8_t      *data;     /* file date ptr */
+    rt_size_t        size;     /* file size */
+};
+
+
+struct tmpfs_sb
+{
+    rt_uint32_t       magic;       /* TMPFS_MAGIC */
+    struct tmpfs_file root;        /* root dir */
+    rt_size_t         df_size;     /* df size */
+    rt_list_t         sibling;     /* sb sibling list */
+    struct rt_spinlock lock;       /* tmpfs lock */
+};
+
+int dfs_tmpfs_init(void);
+
+#endif
+