120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2005-02-22 Bernard The first version.
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*/
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#ifndef __DFS_H__
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#define __DFS_H__
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include <sys/time.h>
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#include <rtdevice.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef DFS_FILESYSTEMS_MAX
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#define DFS_FILESYSTEMS_MAX 4
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#endif
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#ifndef DFS_FD_MAX
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#define DFS_FD_MAX 16
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#endif
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/*
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* skip stdin/stdout/stderr normally
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*/
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#ifndef DFS_STDIO_OFFSET
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#define DFS_STDIO_OFFSET 3
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#endif
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#ifndef DFS_PATH_MAX
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#define DFS_PATH_MAX DIRENT_NAME_MAX
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#endif
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#ifndef SECTOR_SIZE
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#define SECTOR_SIZE 512
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#endif
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#ifndef DFS_FILESYSTEM_TYPES_MAX
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#define DFS_FILESYSTEM_TYPES_MAX 2
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#endif
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#define DFS_FS_FLAG_DEFAULT 0x00 /* default flag */
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#define DFS_FS_FLAG_FULLPATH 0x01 /* set full path to underlaying file system */
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/* File types */
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#define FT_REGULAR 0 /* regular file */
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#define FT_SOCKET 1 /* socket file */
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#define FT_DIRECTORY 2 /* directory */
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#define FT_USER 3 /* user defined */
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#define FT_DEVICE 4 /* device */
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/* File flags */
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#define DFS_F_OPEN 0x01000000
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#define DFS_F_DIRECTORY 0x02000000
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#define DFS_F_EOF 0x04000000
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#define DFS_F_ERR 0x08000000
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struct dfs_fdtable
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{
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uint32_t maxfd;
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struct dfs_file **fds;
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};
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/* Initialization of dfs */
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int dfs_init(void);
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char *dfs_normalize_path(const char *directory, const char *filename);
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const char *dfs_subdir(const char *directory, const char *filename);
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int fd_is_open(const char *pathname);
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struct dfs_fdtable *dfs_fdtable_get(void);
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void dfs_lock(void);
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void dfs_unlock(void);
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void dfs_file_lock(void);
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void dfs_file_unlock(void);
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void dfs_fm_lock(void);
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void dfs_fm_unlock(void);
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#ifdef DFS_USING_POSIX
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/* FD APIs */
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int fdt_fd_new(struct dfs_fdtable *fdt);
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struct dfs_file *fdt_fd_get(struct dfs_fdtable* fdt, int fd);
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void fdt_fd_release(struct dfs_fdtable* fdt, int fd);
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int fd_new(void);
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struct dfs_file *fd_get(int fd);
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void fd_release(int fd);
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void fd_init(struct dfs_file *fd);
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int fd_associate(struct dfs_fdtable *fdt, int fd, struct dfs_file *file);
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int fd_get_fd_index(struct dfs_file *file);
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struct dfs_fdtable *dfs_fdtable_get(void);
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struct dfs_fdtable *dfs_fdtable_get_global(void);
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#endif /* DFS_USING_POSIX */
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#ifdef __cplusplus
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}
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#endif
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#endif
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