diff options
Diffstat (limited to 'share/man/man9')
-rw-r--r-- | share/man/man9/timeout.9 | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/share/man/man9/timeout.9 b/share/man/man9/timeout.9 index c63c201..5179d79 100644 --- a/share/man/man9/timeout.9 +++ b/share/man/man9/timeout.9 @@ -38,6 +38,7 @@ .Nm callout_handle_init , .Nm callout_init , .Nm callout_init_mtx , +.Nm callout_init_rm , .Nm callout_init_rw , .Nm callout_stop , .Nm callout_drain , @@ -73,6 +74,8 @@ struct callout_handle handle = CALLOUT_HANDLE_INITIALIZER(&handle); .Fn callout_init "struct callout *c" "int mpsafe" .Ft void .Fn callout_init_mtx "struct callout *c" "struct mtx *mtx" "int flags" +.Fn void +.Fn callout_init_rm "struct callout *c" "struct rmlock *rm" "int flags" .Ft void .Fn callout_init_rw "struct callout *c" "struct rwlock *rw" "int flags" .Ft int @@ -203,6 +206,7 @@ Thus they are protected from re-entrancy. The functions .Fn callout_init , .Fn callout_init_mtx , +.Fn callout_init_rm , .Fn callout_init_rw , .Fn callout_stop , .Fn callout_drain , @@ -252,15 +256,25 @@ after the callout function returns. .Pp The .Fn callout_init_rw -function serves the need of using rwlocks in conjunction with callouts. -The function does basically the same as -.Fn callout_init_mtx +and the +.Fn callout_init_rm +fuctions serve the need of using rwlocks and rmlocks in conjunction +with callouts. +The functions do the same as +.Fn callout_init with the possibility of specifying an extra .Fa rw +or +.Fa rm argument. -The usable lock classes are currently limited to mutexes and rwlocks, -because callout handlers run in softclock swi, so they cannot sleep nor -acquire sleepable locks like sx or lockmgr. +If an +.Fa rm +argument is specified, the lock should be created without passing the +.It Dv RM_SLEEPABLE +flag. +The usable lock classes are currently limited to mutexes, rwlocks and +non-sleepable rmlocks, because callout handlers run in softclock swi, +so they cannot sleep nor acquire sleepable locks like sx or lockmgr. The following .Fa flags may be specified: |