mojave man page for lskq

lskq(1) 						    BSD General Commands Manual 						   lskq(1)

NAME
     lskq -- display process kqueue state

SYNOPSIS
     lskq [-vhe] [-p <pid> | -a]

DESCRIPTION
     The lskq command enumerates kqueues and registered kevents of running processes.

OPTIONS
     -p <pid>
	  Show kqueues of process <pid>.

     -a   Show kqueues for all running processes. Requires root.

     -v   Verbose: show opaque user data and filter-specific extension fields.

     -e   Ignore empty kqueues.

     -r   Print fields in raw hex.

     -h   Show help and exit.

OUTPUT
     lskq prints one line of output for each registered kevent, consisting of process, kqueue, and kevent information. For kqueues with no regis-
     tered kevents, a single line is output with an ident of `-'. See kevent(2) for field semantics. The output columns are:

     command	   shortened process name.

     pid	   process identifier.

     kq 	   file descriptor corresponding to kqueue, or ``wq'' for the special workq kqueue.

     kqst	   kqueue status bitmask.
		   k	    kqueue is in a kevent*() wait set (KQ_SLEEP).
		   s	    kqueue is in a select() wait set (KQ_SEL).
		   3 6 q    Type of kevents on this kqueue: KEV32, KEV64, or KEV_QOS.

     ident	   kevent identifier. The meaning depends on the kevent filter specified. Where possible, lskq prints both numeric and symbolic
		   names.

     filter	   kevent filter type (EVFILT_*).

     fdtype	   file descriptor type, for filters operating on file descriptors.

     fflags	   kevent filter flags bitmask. The meaning of each field depends on the filter type.

		   EVFILT_READ:
		   l	    NOTE_LOWAT

		   EVFILT_MACHPORT:
		   r	    MACH_RCV_MSG

		   EVFILT_VNODE:
		   d	    NOTE_DELETE
		   w	    NOTE_WRITE
		   e	    NOTE_EXTEND
		   a	    NOTE_ATTRIB
		   l	    NOTE_LINK
		   r	    NOTE_RENAME
		   v	    NOTE_REVOKE

		   EVFILT_PROC:
		   x	    NOTE_EXIT
		   t	    NOTE_EXITSTATUS
		   d	    NOTE_EXIT_DETAIL
		   f	    NOTE_FORK
		   e	    NOTE_EXEC
		   s	    NOTE_SIGNAL
		   r	    NOTE_REAP

		   EVFILT_TIMER:
		   s u n    NOTE_SECONDS, NOTE_USECONDS, NOTE_NSECONDS
		   a	    NOTE_ABSOLUTE
		   c	    NOTE_CRITICAL
		   b	    NOTE_BACKGROUND
		   l	    NOTE_LEEWAY

		   EVFILT_USER:
		   t	    NOTE_TRIGGER
		   a	    NOTE_FFAND
		   o	    NOTE_FFOR

		   EVFILT_WORKLOOP:
		   t w	    NOTE_WL_THREAD_REQUEST, NOTE_WL_SYNC_WAIT
		   !	    NOTE_WL_SYNC_WAKE
		   q	    NOTE_WL_UPDATE_QOS
		   O o	    NOTE_WL_UPDATE_OWNER, NOTE_WL_DISCOVER_OWNER

     flags	   kevent generic flags bitmask.
		   a	    EV_ADD
		   n	    EV_ENABLE
		   d	    EV_DISABLE
		   x	    EV_DELETE

		   r	    EV_RECEIPT
		   1	    EV_ONESHOT
		   c	    EV_CLEAR
		   s	    EV_DISPATCH

		   u	    EV_UDATA_SPECIFIC
		   p	    EV_FLAG0 (EV_POLL)
		   b	    EV_FLAG1 (EV_OOBAND)
		   o	    EV_EOF
		   e	    EV_ERROR

     evst	   kevent status bitmask.
		   a	    KN_ACTIVE (event has triggered)
		   q	    KN_QUEUED (event has been added to the active list)
		   d	    KN_DISABLED
		   s	    KN_STAYQUEUED (event is marked as always-enqueued on the active list)

		   d	    KN_DROPPING
		   w	    KN_USEWAIT
		   c	    KN_ATTACHING
		   a	    KN_ATTACHED

		   s	    KN_DISPATCH
		   u	    KN_UDATA_SPECIFIC
		   p	    KN_SUPPRESSED
		   t	    KN_STOLENDROP

		   v	    KN_REQVANISH
		   n	    KN_VANISHED

     qos	   The QoS requested for the knote.

     data	   Filter-specific data.

     If the -v (verbose) option is specified, the opaque user-data field and further filter-specific extension fields are printed in raw hexadeci-
     mal.

NOTES
     The output of lskq is not an atomic snapshot of system state. In cases where lskq is able to detect an inconsistency, a warning will be
     printed.

     Not all flags are symbolicated. Use -r (raw mode) to inspect additional flags.

SEE ALSO
     kqueue(2), kevent(2), ddt(1), lsof(8), lsmp(1)

Mac OS X							   Apr 20, 2015 							  Mac OS X