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#ifndef __VFS_CONST_H__
#define __VFS_CONST_H__
/* Tables sizes */
#define NR_FILPS 1024 /* # slots in filp table */
#define NR_LOCKS 8 /* # slots in the file locking table */
#define NR_MNTS 16 /* # slots in mount table */
#define NR_VNODES 1024 /* # slots in vnode table */
#define NR_WTHREADS 9 /* # slots in worker thread table */
#define NR_SOCKDEVS 8 /* # slots in smap table */
#define NR_NONEDEVS NR_MNTS /* # slots in nonedev bitmap */
/* Miscellaneous constants */
#define SU_UID ((uid_t) 0) /* super_user's uid_t */
#define SYS_UID ((uid_t) 0) /* uid_t for system processes and INIT */
#define SYS_GID ((gid_t) 0) /* gid_t for system processes and INIT */
#define FP_BLOCKED_ON_NONE 0 /* not blocked */
#define FP_BLOCKED_ON_PIPE 1 /* susp'd on pipe */
#define FP_BLOCKED_ON_FLOCK 2 /* susp'd on file lock */
#define FP_BLOCKED_ON_POPEN 3 /* susp'd on pipe open */
#define FP_BLOCKED_ON_SELECT 4 /* susp'd on select */
#define FP_BLOCKED_ON_CDEV 5 /* blocked on character device I/O */
#define FP_BLOCKED_ON_SDEV 6 /* blocked on socket I/O */
/* test if the process is blocked on something */
#define fp_is_blocked(fp) ((fp)->fp_blocked_on != FP_BLOCKED_ON_NONE)
#define INVALID_THREAD ((thread_t) -1) /* known-invalid thread ID */
#define SYMLOOP 16
#define LABEL_MAX 16 /* maximum label size (including '\0'). Should
* not be smaller than 16 or bigger than
* M_PATH_STRING_MAX.
*/
#define FSTYPE_MAX VFS_NAMELEN /* maximum file system type size */
/* possible select() operation types; read, write, errors */
#define SEL_RD CDEV_OP_RD
#define SEL_WR CDEV_OP_WR
#define SEL_ERR CDEV_OP_ERR
#define SEL_NOTIFY CDEV_NOTIFY /* not a real select operation */
/* If these constants diverge, VFS must be extended to perform mapping. */
#if (CDEV_OP_RD != SDEV_OP_RD || CDEV_OP_WR != SDEV_OP_WR || \
CDEV_OP_ERR != SDEV_OP_ERR || CDEV_NOTIFY != SDEV_NOTIFY)
#error "CDEV and SDEV select constants are different"
#endif
/* special driver endpoint for CTTY_MAJOR; must be able to pass isokendpt() */
#define CTTY_ENDPT VFS_PROC_NR
#endif
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