rt-thread-official/components/dfs/include/dfs_def.h

165 lines
4.8 KiB
C

/*
* File : dfs_def.h
* This file is part of Device File System in RT-Thread RTOS
* COPYRIGHT (C) 2004-2010, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE.
*
* Change Logs:
* Date Author Notes
* 2004-10-01 Beranard The first version.
* 2004-10-14 Beranard Clean up the code.
* 2005-01-22 Beranard Clean up the code, port to MinGW
*/
#ifndef __DFS_DEF_H__
#define __DFS_DEF_H__
#include <rtthread.h>
#include <dfs_config.h>
#if defined(RT_USING_NEWLIB) || defined (RT_USING_MINILIBC)
#include <string.h>
#endif
#ifndef __D_FS__
#define __D_FS__
#endif
/* Device error codes */
#define DFS_STATUS_OK 0 /* no error */
#define DFS_STATUS_ENOENT 2 /* No such file or directory */
#define DFS_STATUS_EIO 5 /* I/O error */
#define DFS_STATUS_ENXIO 6 /* No such device or address */
#define DFS_STATUS_EBADF 9 /* Bad file number */
#define DFS_STATUS_EAGIAN 11 /* Try again */
#define DFS_STATUS_ENOMEM 12 /* no memory */
#define DFS_STATUS_EBUSY 16 /* Device or resource busy */
#define DFS_STATUS_EEXIST 17 /* File exists */
#define DFS_STATUS_EXDEV 18 /* Cross-device link */
#define DFS_STATUS_ENODEV 19 /* No such device */
#define DFS_STATUS_ENOTDIR 20 /* Not a directory */
#define DFS_STATUS_EISDIR 21 /* Is a directory */
#define DFS_STATUS_EINVAL 22 /* Invalid argument */
#define DFS_STATUS_ENOSPC 28 /* No space left on device */
#define DFS_STATUS_EROFS 30 /* Read-only file system */
#define DFS_STATUS_ENOSYS 38 /* Function not implemented */
#define DFS_STATUS_ENOTEMPTY 39 /* Directory not empty */
#define DFS_STATUS_EMMOUNT 128 /* Filesystem table full */
/* Operation flags */
#define DFS_O_RDONLY 0000000
#define DFS_O_WRONLY 0000001
#define DFS_O_RDWR 0000002
#define DFS_O_ACCMODE 0000003
#define DFS_O_CREAT 0000100
#define DFS_O_EXCL 0000200
#define DFS_O_TRUNC 0001000
#define DFS_O_APPEND 0002000
#define DFS_O_DIRECTORY 0200000
/* File flags */
#define DFS_F_OPEN 0x01000000
#define DFS_F_DIRECTORY 0x02000000
#define DFS_F_EOF 0x04000000
#define DFS_F_ERR 0x08000000
/* Seek flags */
#define DFS_SEEK_SET 0
#define DFS_SEEK_CUR 1
#define DFS_SEEK_END 2
/* Stat codes */
#define DFS_S_IFMT 00170000
#define DFS_S_IFSOCK 0140000
#define DFS_S_IFLNK 0120000
#define DFS_S_IFREG 0100000
#define DFS_S_IFBLK 0060000
#define DFS_S_IFDIR 0040000
#define DFS_S_IFCHR 0020000
#define DFS_S_IFIFO 0010000
#define DFS_S_ISUID 0004000
#define DFS_S_ISGID 0002000
#define DFS_S_ISVTX 0001000
#define DFS_S_ISLNK(m) (((m) & DFS_S_IFMT) == DFS_S_IFLNK)
#define DFS_S_ISREG(m) (((m) & DFS_S_IFMT) == DFS_S_IFREG)
#define DFS_S_ISDIR(m) (((m) & DFS_S_IFMT) == DFS_S_IFDIR)
#define DFS_S_ISCHR(m) (((m) & DFS_S_IFMT) == DFS_S_IFCHR)
#define DFS_S_ISBLK(m) (((m) & DFS_S_IFMT) == DFS_S_IFBLK)
#define DFS_S_ISFIFO(m) (((m) & DFS_S_IFMT) == DFS_S_IFIFO)
#define DFS_S_ISSOCK(m) (((m) & DFS_S_IFMT) == DFS_S_IFSOCK)
#define DFS_S_IRWXU 00700
#define DFS_S_IRUSR 00400
#define DFS_S_IWUSR 00200
#define DFS_S_IXUSR 00100
#define DFS_S_IRWXG 00070
#define DFS_S_IRGRP 00040
#define DFS_S_IWGRP 00020
#define DFS_S_IXGRP 00010
#define DFS_S_IRWXO 00007
#define DFS_S_IROTH 00004
#define DFS_S_IWOTH 00002
#define DFS_S_IXOTH 00001
#define DEVICE_GETGEOME 0
#define DEVICE_GETINFO 1
#define DEVICE_FORMAT 2
#define DEVICE_CLEAN_SECTOR 3
struct _stat
{
rt_device_t st_dev;
rt_uint16_t st_mode;
rt_uint32_t st_size;
rt_time_t st_mtime;
rt_uint32_t st_blksize;
};
struct _statfs
{
rt_size_t f_bsize; /* block size */
rt_size_t f_blocks; /* total data blocks in file system */
rt_size_t f_bfree; /* free blocks in file system */
};
/* File types */
#define FT_REGULAR 0 /* regular file */
#define FT_SOCKET 1 /* socket file */
#define FT_DIRECTORY 2 /* directory */
#define FT_USER 3 /* user defined */
/* file descriptor */
struct dfs_fd
{
char* path; /* Name (below mount point) */
int type; /* Type (regular or socket) */
int ref_count; /* Descriptor reference count */
struct dfs_filesystem* fs; /* Resident file system */
rt_uint32_t flags; /* Descriptor flags */
rt_size_t size; /* Size in bytes */
rt_off_t pos; /* Current file position */
void *data; /* Specific file system data */
};
#define DFS_DT_UNKNOWN 0x00
#define DFS_DT_REG 0x01
#define DFS_DT_DIR 0x02
struct _dirent
{
rt_uint8_t d_type; /* The type of the file */
rt_uint8_t d_namlen; /* The length of the not including the terminating null file name */
rt_uint16_t d_reclen; /* length of this record */
char d_name[DFS_PATH_MAX]; /* The null-terminated file name */
};
#endif