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

components/dfs/dfs_v1/filesystems/ramfs/dfs_ramfs.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-04-15     Bernard      the first version
+ * 2013-05-05     Bernard      remove CRC for ramfs persistence
+ */
+
+#ifndef __DFS_RAMFS_H__
+#define __DFS_RAMFS_H__
+
+#include <rtthread.h>
+#include <rtservice.h>
+
+#define RAMFS_NAME_MAX  32
+#define RAMFS_MAGIC     0x0A0A0A0A
+
+struct ramfs_dirent
+{
+    rt_list_t list;
+    struct dfs_ramfs *fs;       /* file system ref */
+
+    char name[RAMFS_NAME_MAX];  /* dirent name */
+    rt_uint8_t *data;
+
+    rt_size_t size;             /* file size */
+};
+
+/**
+ * DFS ramfs object
+ */
+struct dfs_ramfs
+{
+    rt_uint32_t magic;
+
+    struct rt_memheap memheap;
+    struct ramfs_dirent root;
+};
+
+int dfs_ramfs_init(void);
+struct dfs_ramfs *dfs_ramfs_create(rt_uint8_t *pool, rt_size_t size);
+
+#endif
+