diff options
Diffstat (limited to 'freebsd/sys/kern/subr_taskqueue.c')
| -rw-r--r-- | freebsd/sys/kern/subr_taskqueue.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/freebsd/sys/kern/subr_taskqueue.c b/freebsd/sys/kern/subr_taskqueue.c index 5ef8683c..c739ccf3 100644 --- a/freebsd/sys/kern/subr_taskqueue.c +++ b/freebsd/sys/kern/subr_taskqueue.c @@ -522,6 +522,23 @@ task_is_running(struct taskqueue *queue, struct task *task) return (0); } +/* + * Only use this function in single threaded contexts. It returns + * non-zero if the given task is either pending or running. Else the + * task is idle and can be queued again or freed. + */ +int +taskqueue_poll_is_busy(struct taskqueue *queue, struct task *task) +{ + int retval; + + TQ_LOCK(queue); + retval = task->ta_pending > 0 || task_is_running(queue, task); + TQ_UNLOCK(queue); + + return (retval); +} + static int taskqueue_cancel_locked(struct taskqueue *queue, struct task *task, u_int *pendp) |