8590ac260d
- all macros in consts.h that depend on NR_TASKS replaced by a FP_BLOCKED_ON_* - fp_suspended removed and replaced by fp_blocked_on. Testing whether a process is supended is qeual to testing whether fp_blocked_on is FP_BLOCKED_ON_NONE or not - fp_task is valid only if fp_blocked_on == FP_BLOCKED_ON_OTHER - no need of special values that do not colide with valid and special endpoints since they are not used as endpoints anymore - suspend only takes FP_BLOCKED_ON_* values not endpoints anymore - suspend(task) replaced by wait_for(task) which sets fp_task so we remember who are we waiting for and suspend sets fp_blocked_on to FP_BLOCKED_ON_OTHER to signal that we are waiting for some other process - some functions should take endpoint_t instead of int, fixed
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/* 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 8 /* # slots in mount table */
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#define NR_VNODES 512 /* # slots in vnode table */
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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 SERVERS_UID ((uid_t) 11) /* who may do FSSIGNON */
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#define SYS_UID ((uid_t) 0) /* uid_t for processes MM and INIT */
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#define SYS_GID ((gid_t) 0) /* gid_t for processes MM 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 ROOT_INODE 1 /* inode number for root directory */
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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_SCATTER 2003
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#define VFS_DEV_GATHER 2004
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#define VFS_DEV_IOCTL 2005
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#define VFS_DEV_SELECT 2006
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