/* * 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 #include #ifndef __D_FS__ #define __D_FS__ #endif #define DEVICE_GETGEOME 0 #define DEVICE_GETINFO 1 #define DEVICE_FORMAT 2 #define DEVICE_CLEAN_SECTOR 3 /* File flags */ #define DFS_F_OPEN 0x01000000 #define DFS_F_DIRECTORY 0x02000000 #define DFS_F_EOF 0x04000000 #define DFS_F_ERR 0x08000000 #if defined(RT_USING_NEWLIB) #include #include /* used for struct stat */ #include /* used for struct statfs */ #include /* used for error number */ #include /* used for operation flags */ #include /* used for SEEK_SET/CUR/END */ #include /* used for struct dirent */ /* Device error codes */ #define DFS_STATUS_OK 0 /* no error */ #define DFS_STATUS_ENOENT ENOENT /* No such file or directory */ #define DFS_STATUS_EIO EIO /* I/O error */ #define DFS_STATUS_ENXIO ENXIO /* No such device or address */ #define DFS_STATUS_EBADF EBADF /* Bad file number */ #define DFS_STATUS_EAGAIN EAGAIN /* Try again */ #define DFS_STATUS_ENOMEM ENOMEM /* no memory */ #define DFS_STATUS_EBUSY EBUSY /* Device or resource busy */ #define DFS_STATUS_EEXIST EEXIST /* File exists */ #define DFS_STATUS_EXDEV EXDEV /* Cross-device link */ #define DFS_STATUS_ENODEV ENODEV /* No such device */ #define DFS_STATUS_ENOTDIR ENOTDIR /* Not a directory */ #define DFS_STATUS_EISDIR EISDIR /* Is a directory */ #define DFS_STATUS_EINVAL EINVAL /* Invalid argument */ #define DFS_STATUS_ENOSPC ENOSPC /* No space left on device */ #define DFS_STATUS_EROFS EROFS /* Read-only file system */ #define DFS_STATUS_ENOSYS ENOSYS /* Function not implemented */ #define DFS_STATUS_ENOTEMPTY ENOTEMPTY /* Directory not empty */ /* Operation flags */ #define DFS_O_RDONLY O_RDONLY #define DFS_O_WRONLY O_WRONLY #define DFS_O_RDWR O_RDWR #define DFS_O_ACCMODE O_ACCMODE #define DFS_O_CREAT O_CREAT #define DFS_O_EXCL O_EXCL #define DFS_O_TRUNC O_TRUNC #define DFS_O_APPEND O_APPEND #define DFS_O_DIRECTORY O_DIRECTORY /* Seek flags */ #define DFS_SEEK_SET SEEK_SET #define DFS_SEEK_CUR SEEK_CUR #define DFS_SEEK_END SEEK_END /* Stat codes */ #define DFS_S_IFMT S_IFMT #define DFS_S_IFSOCK S_IFSOCK #define DFS_S_IFLNK S_IFLNK #define DFS_S_IFREG S_IFREG #define DFS_S_IFBLK S_IFBLK #define DFS_S_IFDIR S_IFDIR #define DFS_S_IFCHR S_IFCHR #define DFS_S_IFIFO S_IFIFO #define DFS_S_ISUID S_ISUID #define DFS_S_ISGID S_ISGID #define DFS_S_ISVTX S_ISVTX #define DFS_S_ISLNK(m) S_ISLNK(m) #define DFS_S_ISREG(m) S_ISREG(m) #define DFS_S_ISDIR(m) S_ISDIR(m) #define DFS_S_ISCHR(m) S_ISCHR(m) #define DFS_S_ISBLK(m) S_ISBLK(m) #define DFS_S_ISFIFO(m) S_ISFIFO(m) #define DFS_S_ISSOCK(m) S_ISSOCK(m) #define DFS_S_IRWXU S_IRWXU #define DFS_S_IRUSR S_IRUSR #define DFS_S_IWUSR S_IWUSR #define DFS_S_IXUSR S_IXUSR #define DFS_S_IRWXG S_IRWXG #define DFS_S_IRGRP S_IRGRP #define DFS_S_IWGRP S_IWGRP #define DFS_S_IXGRP S_IXGRP #define DFS_S_IRWXO S_IRWXO #define DFS_S_IROTH S_IROTH #define DFS_S_IWOTH S_IWOTH #define DFS_S_IXOTH S_IXOTH /* Dirent types */ #define DFS_DT_UNKNOWN DT_UNKNOWN #define DFS_DT_REG DT_REG #define DFS_DT_DIR DT_DIR #else #ifdef RT_USING_MINILIBC #include #else typedef long off_t; typedef int mode_t; #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 */ /* 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 */ #ifdef __CC_ARM #include #define DFS_SEEK_SET SEEK_SET #define DFS_SEEK_CUR SEEK_CUR #define DFS_SEEK_END SEEK_END #else #define DFS_SEEK_SET 0 #define DFS_SEEK_CUR 1 #define DFS_SEEK_END 2 #endif /* 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 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 */ /* Dirent types */ #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 /* 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 */ }; #endif