Author: mdf
Date: Tue Oct 12 18:36:03 2010
New Revision: 213739
URL: http://svn.freebsd.org/changeset/base/213739
Log:
Re-expose and briefly document taskqueue_run(9). The function is used
in at least one 3rd party driver.
Requested by: jhb
Modified:
head/share/man/man9/taskqueue.9
head/sys/kern/subr_taskqueue.c
head/sys/sys/taskqueue.h
Modified: head/share/man/man9/taskqueue.9
==============================================================================
--- head/share/man/man9/taskqueue.9 Tue Oct 12 18:20:38 2010
(r213738)
+++ head/share/man/man9/taskqueue.9 Tue Oct 12 18:36:03 2010
(r213739)
@@ -67,6 +67,8 @@ struct task {
.Fn taskqueue_drain "struct taskqueue *queue" "struct task *task"
.Ft int
.Fn taskqueue_member "struct taskqueue *queue" "struct thread *td"
+.Ft void
+.Fn taskqueue_run "struct taskqueue *queue" "struct task **tpp"
.Fn TASK_INIT "struct task *task" "int priority" "task_fn_t *func" "void
*context"
.Fn TASKQUEUE_DECLARE "name"
.Fn TASKQUEUE_DEFINE "name" "taskqueue_enqueue_fn enqueue" "void *context"
"init"
@@ -178,6 +180,19 @@ and
.No 0
otherwise.
.Pp
+The
+.Fn taskqueue_run
+function will run all pending tasks in the specified
+.Fa queue .
+Normally this function is only used internally.
+The
+.Fa tpp
+argument is a pointer to a
+.Vt struct task *
+that is used to record the currently running task.
+The lifetime of this pointer must match that of the
+.Fa queue .
+.Pp
A convenience macro,
.Fn TASK_INIT "task" "priority" "func" "context"
is provided to initialise a
Modified: head/sys/kern/subr_taskqueue.c
==============================================================================
--- head/sys/kern/subr_taskqueue.c Tue Oct 12 18:20:38 2010
(r213738)
+++ head/sys/kern/subr_taskqueue.c Tue Oct 12 18:36:03 2010
(r213739)
@@ -63,8 +63,6 @@ struct taskqueue {
#define TQ_FLAGS_BLOCKED (1 << 1)
#define TQ_FLAGS_PENDING (1 << 2)
-static void taskqueue_run(struct taskqueue *, struct task **);
-
static __inline void
TQ_LOCK(struct taskqueue *tq)
{
@@ -216,7 +214,7 @@ taskqueue_unblock(struct taskqueue *queu
TQ_UNLOCK(queue);
}
-static void
+void
taskqueue_run(struct taskqueue *queue, struct task **tpp)
{
struct task *task;
Modified: head/sys/sys/taskqueue.h
==============================================================================
--- head/sys/sys/taskqueue.h Tue Oct 12 18:20:38 2010 (r213738)
+++ head/sys/sys/taskqueue.h Tue Oct 12 18:36:03 2010 (r213739)
@@ -56,6 +56,7 @@ int taskqueue_start_threads(struct taskq
int taskqueue_enqueue(struct taskqueue *queue, struct task *task);
void taskqueue_drain(struct taskqueue *queue, struct task *task);
void taskqueue_free(struct taskqueue *queue);
+void taskqueue_run(struct taskqueue *queue, struct task **tpp);
void taskqueue_block(struct taskqueue *queue);
void taskqueue_unblock(struct taskqueue *queue);
int taskqueue_member(struct taskqueue *queue, struct thread *td);
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