51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
#ifndef __VFS_CONST_H__
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#define __VFS_CONST_H__
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/* Tables sizes */
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#define NR_FILPS 512 /* # slots in filp table */
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#define NR_LOCKS 8 /* # slots in the file locking table */
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#define NR_MNTS 16 /* # slots in mount table */
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#define NR_VNODES 512 /* # slots in vnode table */
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#define NR_WTHREADS 8 /* # slots in worker thread table */
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#define NR_NONEDEVS NR_MNTS /* # slots in nonedev bitmap */
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/* Miscellaneous constants */
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#define SU_UID ((uid_t) 0) /* super_user's uid_t */
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#define SYS_UID ((uid_t) 0) /* uid_t for system processes and INIT */
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#define SYS_GID ((gid_t) 0) /* gid_t for system processes and INIT */
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#define FP_BLOCKED_ON_NONE 0 /* not blocked */
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#define FP_BLOCKED_ON_PIPE 1 /* susp'd on pipe */
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#define FP_BLOCKED_ON_LOCK 2 /* susp'd on lock */
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#define FP_BLOCKED_ON_POPEN 3 /* susp'd on pipe open */
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#define FP_BLOCKED_ON_SELECT 4 /* susp'd on select */
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#define FP_BLOCKED_ON_DOPEN 5 /* susp'd on device open */
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#define FP_BLOCKED_ON_OTHER 6 /* blocked on other process, check
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fp_task to find out */
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/* test if the process is blocked on something */
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#define fp_is_blocked(fp) ((fp)->fp_blocked_on != FP_BLOCKED_ON_NONE)
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#define DUP_MASK 0100 /* mask to distinguish dup2 from dup */
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#define LOOK_UP 0 /* tells search_dir to lookup string */
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#define ENTER 1 /* tells search_dir to make dir entry */
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#define DELETE 2 /* tells search_dir to delete entry */
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#define IS_EMPTY 3 /* tells search_dir to ret. OK or ENOTEMPTY */
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#define SYMLOOP 16
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#define LABEL_MAX 16 /* maximum label size (including '\0'). Should
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* not be smaller than 16 or bigger than
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* M3_LONG_STRING.
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*/
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/* Args to dev_io */
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#define VFS_DEV_READ 2001
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#define VFS_DEV_WRITE 2002
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#define VFS_DEV_IOCTL 2005
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#define VFS_DEV_SELECT 2006
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#endif
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