d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add manpages for rw_try_rlock() and rw_try_wlock() functions.

Browse Source
This commit is contained in:
Attilio Rao 2008-04-01 20:56:45 +00:00
parent 55aa113659
commit c709e029e7
2 changed files with 21 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
share/man/man9/Makefile
View File

@ -958,7 +958,9 @@ MLINKS+=rwlock.9 rw_assert.9 \
rwlock.9 rw_runlock.9 \
rwlock.9 rw_sleep.9 \
rwlock.9 RW_SYSINIT.9 \
rwlock.9 rw_try_rlock.9 \
rwlock.9 rw_try_upgrade.9 \
rwlock.9 rw_try_wlock.9 \
rwlock.9 rw_wlock.9 \
rwlock.9 rw_wowned.9 \
rwlock.9 rw_wunlock.9

20
share/man/man9/rwlock.9
View File

@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd March 16, 2008
.Dd April 1, 2008
.Dt RWLOCK 9
.Os
.Sh NAME
@ -37,7 +37,9 @@
.Nm rw_runlock ,
.Nm rw_wunlock ,
.Nm rw_unlock ,
.Nm rw_try_rlock ,
.Nm rw_try_upgrade ,
.Nm rw_try_wlock ,
.Nm rw_downgrade ,
.Nm rw_sleep ,
.Nm rw_initialized ,
@ -59,6 +61,10 @@
.Fn rw_rlock "struct rwlock *rw"
.Ft void
.Fn rw_wlock "struct rwlock *rw"
.Ft int
.Fn rw_try_rlock "struct rwlock *rw"
.Ft int
.Fn rw_try_wlock "struct rwlock *rw"
.Ft void
.Fn rw_runlock "struct rwlock *rw"
.Ft void
@ -176,6 +182,18 @@ function can be called recursively only if
has been initialized with the
.Dv RW_RECURSE
option enabled.
.It Fn rw_try_rlock "struct rwlock *rw"
Try to lock
.Fa rw
as a reader.
This function will return true if the operation succeeds, otherwise 0
will be returned.
.It Fn rw_try_wlock "struct rwlock *rw"
Try to lock
.Fa rw
as a writer.
This function will return true if the operation succeeds, otherwise 0
will be returned.
.It Fn rw_runlock "struct rwlock *rw"
This function releases a shared lock previously acquired by
.Fn rw_rlock .