diff options
Diffstat (limited to 'share/man/man9')
| -rw-r--r-- | share/man/man9/lock.9 | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/share/man/man9/lock.9 b/share/man/man9/lock.9 index f2d07c4f637..6cef4644e4e 100644 --- a/share/man/man9/lock.9 +++ b/share/man/man9/lock.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: lock.9,v 1.11 2005/11/19 02:18:00 pedro Exp $ +.\" $OpenBSD: lock.9,v 1.12 2005/11/19 09:33:58 jmc Exp $ .\" $NetBSD: lock.9,v 1.12 2001/11/01 01:13:43 wiz Exp $ .\" .\" Copyright (c) 2000 The NetBSD Foundation, Inc. @@ -47,7 +47,7 @@ .Nm lockmgr_printinfo , .Nd kernel lock functions .Sh SYNOPSIS -.Fd #include \*[Lt]sys/lock.h\*[Gt] +.Fd #include <sys/lock.h> .Ft void .Fn simple_lock_init "struct simplelock *slock" .Ft void @@ -72,8 +72,7 @@ functions provide synchronisation in the kernel by preventing multiple processes from simultaneously executing critical sections of code accessing shared data. A number of different locks are available: -.Pp -.Bl -tag -width compact +.Bl -tag -width Ds .It struct simplelock Provides a simple spinning mutex. A processor will busy-wait while trying to acquire a simplelock. @@ -105,8 +104,7 @@ are provided to record additional lock information. These facilities are provided to assist in determining deadlock occurrences. .Sh FUNCTIONS The functions which operate on simplelocks are: -.Pp -.Bl -tag -width compact +.Bl -tag -width Ds .It Fn simple_lock_init "slock" The simplelock .Fa slock @@ -117,7 +115,7 @@ The effect is the same as the dynamic initialisation by a call to simple_lock_init. For example, .Pp -struct simplelock slock = SIMPLELOCK_INITIALIZER; +.Dl struct simplelock slock = SIMPLELOCK_INITIALIZER; .It Fn simple_lock "slock" The simplelock .Fa slock @@ -146,14 +144,14 @@ will be released but the kernel behaviour is undefined. .El .Pp The functions which operate on locks are: -.Pp -.Bl -tag -width compact +.Bl -tag -width Ds .It Fn lockinit "lock" "prio" "wmesg" "timo" "flags" The lock .Fa lock is initialised according to the parameters provided. Arguments are as follows: -.Bl -tag -width compact +.Pp +.Bl -tag -width Ds -compact .It Fa lock The lock. .It Fa prio @@ -169,7 +167,8 @@ Used by Flags to specify the lock behaviour permanently over the lifetime of the lock. Valid lock flags are: -.Bl -tag -width compact +.Pp +.Bl -tag -width "LK_CANRECURSEXX" -compact .It LK_NOWAIT Processes should not sleep when attempting to acquire the lock. .It LK_SLEEPFAIL @@ -181,13 +180,14 @@ Processes can acquire the lock recursively. .It Fn lockmgr "lock" "flags" "slock" Set, change or release a lock according to the parameters provided. Arguments are as follows: -.Bl -tag -width compact +.Pp +.Bl -tag -width Ds -compact .It Fa lock The lock. .It Fa flags Flags to specify the lock request type. In addition to the flags specified above, the following flags are valid: -.Bl -tag -width compact +.Bl -tag -width Ds .It LK_SHARED Get one of many possible shared-access locks. If a process holding an exclusive-access lock requests a shared-access lock, @@ -242,6 +242,7 @@ Unlock the simplelock .Fa slock when the lock is acquired. .El +.Pp .It Fa slock Simplelock interlock. If the flag LK_INTERLOCK is set in |