138 lines
2.9 KiB
C
Executable File
138 lines
2.9 KiB
C
Executable File
/*
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* Copyright (c) 2006-2018, 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 <time.h>
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#include <rtthread.h>
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/* #include <rtdevice.h> */
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/unistd.h>
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#ifndef DFS_FILESYSTEMS_MAX
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#define DFS_FILESYSTEMS_MAX 16
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#endif
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#ifndef DFS_FD_MAX
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#define DFS_FD_MAX 64
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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_FD_OFFSET
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#define DFS_FD_OFFSET (3 + 64)
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#endif
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#ifndef DFS_PATH_MAX
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#define DFS_PATH_MAX 256
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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 16
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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 node */
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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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#define DT_UNKNOWN 0x00
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#define DT_REG 0x01
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#define DT_DIR 0x02
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct statfs
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{
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size_t f_bsize; /* block size */
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size_t f_blocks; /* total data blocks in file system */
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size_t f_bfree; /* free blocks in file system */
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};
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struct dirent
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{
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uint8_t d_type; /* The type of the file */
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uint8_t d_namlen; /* The length of the not including the terminating null file name */
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uint16_t d_reclen; /* length of this record */
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char d_name[DFS_PATH_MAX]; /* The null-terminated file name */
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};
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struct dfs_fdtable
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{
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uint32_t maxfd;
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struct dfs_fd **fds;
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};
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struct map_struct
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{
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unsigned long start;
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unsigned long end;
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unsigned int flags;
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unsigned int prot;
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unsigned long pgoff;
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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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void dfs_lock(void);
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void dfs_unlock(void);
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/* FD APIs */
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int fd_new(void);
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struct dfs_fd *fd_get(int fd);
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void fd_put(struct dfs_fd *fd);
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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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#ifdef __cplusplus
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}
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#endif
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#ifndef O_DIRECTORY
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#define O_DIRECTORY 010000000 /* must be a directory */
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#endif
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#ifndef O_BINARY
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#define O_BINARY 00200000
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#endif
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#endif
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