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Modifed sleep queue to be priority based and added the wakeup_one method.

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This commit is contained in:
Jennifer Averett 2012-05-01 13:08:03 -05:00
parent f59bd572ec
commit e9578468aa
1 changed files with 22 additions and 1 deletions
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23
rtemsbsd/src/rtems-bsd-synch.c
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@ -71,7 +71,7 @@ sleepinit(void)
*/ */
_Thread_queue_Initialize( _Thread_queue_Initialize(
&sleep_queue[ii].queue, &sleep_queue[ii].queue,
THREAD_QUEUE_DISCIPLINE_FIFO, THREAD_QUEUE_DISCIPLINE_PRIORITY,
STATES_WAITING_FOR_SLEEP | STATES_INTERRUPTIBLE_BY_SIGNAL, STATES_WAITING_FOR_SLEEP | STATES_INTERRUPTIBLE_BY_SIGNAL,
EAGAIN EAGAIN
); );
@ -273,3 +273,24 @@ wakeup(void *ident)
return 0; return 0;
} }
/*
* Make a thread sleeping on the specified identifier runnable.
* May wake more than one thread if a target thread is currently
* swapped out.
*/
void
wakeup_one(void *ident)
{
sleep_queue_control_t *sq;
Thread_Control *the_thread;
sq = sleep_queue_lookup( ident );
if (sq == NULL)
{
return (0);
}
the_thread = _Thread_queue_Dequeue(&sq->queue);
return 0;
}