diff options
author | David Gwynne <dlg@cvs.openbsd.org> | 2018-12-16 03:40:13 +0000 |
---|---|---|
committer | David Gwynne <dlg@cvs.openbsd.org> | 2018-12-16 03:40:13 +0000 |
commit | 87162d93c10065652254acda43a5c0b000739c9e (patch) | |
tree | 0bbe7f3058fcf95733ca3d1cb0b690d5d003e337 /share | |
parent | 314fe684be855800a74eeebbed3961fea80bf259 (diff) |
document task_pending()
Diffstat (limited to 'share')
-rw-r--r-- | share/man/man9/task_add.9 | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/share/man/man9/task_add.9 b/share/man/man9/task_add.9 index 64a68738952..90653031ed4 100644 --- a/share/man/man9/task_add.9 +++ b/share/man/man9/task_add.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: task_add.9,v 1.17 2017/11/13 23:52:49 dlg Exp $ +.\" $OpenBSD: task_add.9,v 1.18 2018/12/16 03:40:12 dlg Exp $ .\" .\" Copyright (c) 2013 David Gwynne <dlg@openbsd.org> .\" @@ -14,7 +14,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: November 13 2017 $ +.Dd $Mdocdate: December 16 2018 $ .Dt TASK_ADD 9 .Os .Sh NAME @@ -24,6 +24,7 @@ .Nm task_set , .Nm task_add , .Nm task_del , +.Nm task_pending , .Nm TASK_INITIALIZER .Nd task queues .Sh SYNOPSIS @@ -45,6 +46,8 @@ .Fn task_add "struct taskq *tq" "struct task *t" .Ft int .Fn task_del "struct taskq *tq" "struct task *t" +.Ft int +.Fn task_pending "struct task *t" .Vt extern struct taskq *const systq; .Vt extern struct taskq *const systqmp; .Fn TASK_INITIALIZER "void (*fn)(void *)" "void *arg" @@ -161,6 +164,10 @@ They are serviced by a single thread and can therefore provide predictable ordering of work. Work can be scheduled on the system taskqs from callers at or below IPL_HIGH. .Pp +The +.Fn task_pending +macro can be used to check if a task is scheduled to run. +.Pp A task declaration can be initialised with the .Fn TASK_INITIALIZER macro. @@ -179,8 +186,9 @@ can be called during autoconf, or from process context. can be called from process context. .Fn task_set , .Fn task_add , +.Fn task_del , and -.Fn task_del +.Fn task_pending can be called during autoconf, from process context, or from interrupt context. .Sh RETURN VALUES .Fn taskq_create @@ -201,6 +209,10 @@ will return 1 if the task was removed from the taskq .Fa tq or 0 if the task was not already on the queue. +.Pp +.Fn task_pending +will return non-zero if the task is queued to run, or 0 if the task +is not queued. .Sh SEE ALSO .Xr autoconf 9 , .Xr spl 9 |