File:inode.h - ikarishinjieva/unixV6-code-analyze-chs GitHub Wiki

5677

5678 /* flags */

5679 #define ILOCK 01 /* inode is locked */

• INODE块锁标志

5680 #define IUPD 02 /* inode has been modified */

• INODE块被修改标志

5681 #define IACC 04 /* inode access time to be updated */

• INODE块被读取标志

5682 #define IMOUNT 010 /* inode is mounted on */

• 该INODE块 装载 子文件系统

5683 #define IWANT 020 /* some process waiting on lock */

• 有进程在等待使用该INODE块

5684 #define ITEXT 040 /* inode is pure text prototype */

• 该文件是某程序的正文

5685

5686 /* modes */

5687 #define IALLOC 0100000 /* file is used */

• 该 INODE 块已被分配使用

5688 #define IFMT 060000 /* type of file */

5689 #define IFDIR 040000 /* directory */

5690 #define IFCHR 020000 /* character special */

5691 #define IFBLK 060000 /* block special, 0 is regular */

• 参看 文件系统之inode类型

5692 #define ILARG 010000 /* large addressing algorithm */

5693 #define ISUID 04000 /* set user id on execution */

5694 #define ISGID 02000 /* set group id on execution */

5695 #define ISVTX 01000 /* save swapped text even after use */

• 该 INODE 块 为共享正文段的INODE，且不可被释放

5696 #define IREAD 0400 /* read, write, execute permissions */

• 读权限

5697 #define IWRITE 0200

• 写权限

5698 #define IEXEC 0100

• 执行权限

5699