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/*
* 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>
#include <dfs_vfs.h>
#define TMPFS_NAME_MAX DIRENT_NAME_MAX
#define TMPFS_MAGIC 0x0B0B0B0B
#define TMPFS_TYPE_FILE 0x00
#define TMPFS_TYPE_DIR 0x01
#define TMPFS_TYPE_SOCKET 0x02
struct tmpfs_sb;
struct tmpfs_file
{
rt_uint32_t type; /* file type */
char name[TMPFS_NAME_MAX]; /* file name */
struct dfs_vfs_node node; /* file node in the tmpfs */
struct tmpfs_sb *sb; /* superblock ptr */
rt_uint8_t *data; /* file date ptr */
rt_size_t size; /* file size */
rt_uint32_t nlink; /* hard link count */
mode_t mode; /* file type and permission bits */
rt_bool_t fre_memory;/* Whether to release memory upon close */
};
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
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