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

1 files changed, 19 insertions, 1 deletions

diff --git a/share/man/man9/rwlock.9 b/share/man/man9/rwlock.9
index 4bc8312..5039a42 100644
--- a/share/man/man9/rwlock.9
+++ b/share/man/man9/rwlock.9
@@ -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 .