diff options
| -rw-r--r-- | share/man/man9/Makefile | 2 | ||||
| -rw-r--r-- | share/man/man9/rwlock.9 | 20 |
2 files changed, 21 insertions, 1 deletions
diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile index dd10f7c..3499e70 100644 --- a/share/man/man9/Makefile +++ b/share/man/man9/Makefile @@ -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 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 . |
