diff options
Diffstat (limited to 'sys/sys/sleepqueue.h')
| -rw-r--r-- | sys/sys/sleepqueue.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/sys/sleepqueue.h b/sys/sys/sleepqueue.h index dfd960f..0d1f361 100644 --- a/sys/sys/sleepqueue.h +++ b/sys/sys/sleepqueue.h @@ -64,7 +64,11 @@ * sleep can be interrupted by calling sleepq_abort(). A thread can also * be removed from a specified sleep queue using the sleepq_remove() * function. Note that the sleep queue chain must first be locked via - * sleepq_lock() when calling sleepq_signal() and sleepq_broadcast(). + * sleepq_lock() before calling sleepq_abort(), sleepq_broadcast(), or + * sleepq_signal(). These routines each return a boolean that will be true + * if at least one swapped-out thread was resumed. In that case, the caller + * is responsible for waking up the swapper by calling kick_proc0() after + * releasing the sleep queeu chain lock. * * Each thread allocates a sleep queue at thread creation via sleepq_alloc() * and releases it at thread destruction via sleepq_free(). Note that |
