diff options
| -rw-r--r-- | extras/mini-os/sched.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/extras/mini-os/sched.c b/extras/mini-os/sched.c index fbcffd463e..eedb1fe7ed 100644 --- a/extras/mini-os/sched.c +++ b/extras/mini-os/sched.c @@ -224,12 +224,29 @@ void wake(struct thread *thread) void idle_thread_fn(void *unused) { s_time_t until; + unsigned long flags; + struct list_head *iterator; + struct thread *next, *thread; for(;;) { schedule(); - /* block until the next timeout expires, or for 10 secs, whichever comes first */ - until = blocking_time(); - block_domain(until); + next = NULL; + local_irq_save(flags); + list_for_each(iterator, &idle_thread->thread_list) + { + thread = list_entry(iterator, struct thread, thread_list); + if(is_runnable(thread)) + { + next = thread; + break; + } + } + if (!next) { + /* block until the next timeout expires, or for 10 secs, whichever comes first */ + until = blocking_time(); + block_domain(until); + } + local_irq_restore(flags); wake_expired(); } } |