/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_FREE_COPYRIGHT@
wait_queue_link_t wql;
kern_return_t ret;
- wql = (wait_queue_link_t) kalloc(sizeof(struct wait_queue_link));
+ wql = (wait_queue_link_t) kalloc(sizeof(struct _wait_queue_link));
if (wql == WAIT_QUEUE_LINK_NULL)
return KERN_RESOURCE_SHORTAGE;
ret = wait_queue_link_noalloc(wq, wq_set, wql);
if (ret != KERN_SUCCESS)
- kfree(wql, sizeof(struct wait_queue_link));
+ kfree(wql, sizeof(struct _wait_queue_link));
return ret;
}
wqs_unlock(wq_set);
wait_queue_unlock(wq);
splx(s);
- kfree(wql, sizeof(struct wait_queue_link));
+ kfree(wql, sizeof(struct _wait_queue_link));
return KERN_SUCCESS;
}
}
while(!queue_empty(links)) {
wql = (wait_queue_link_t) dequeue(links);
- kfree(wql, sizeof(struct wait_queue_link));
+ kfree(wql, sizeof(struct _wait_queue_link));
}
return(KERN_SUCCESS);
while (!queue_empty (links)) {
wql = (wait_queue_link_t) dequeue(links);
- kfree(wql, sizeof(struct wait_queue_link));
+ kfree(wql, sizeof(struct _wait_queue_link));
}
return(KERN_SUCCESS);
}
wqs_unlock(wq_set);
wait_queue_unlock(wq);
splx(s);
- kfree(wql,sizeof(struct wait_queue_link));
+ kfree(wql,sizeof(struct _wait_queue_link));
*wq_setp = wq_set;
return;
}
queue_t q = &wake_queue_head;
kern_return_t res;
- assert(wait_queue_held(wq));
+// assert(wait_queue_held(wq));
+// if(!wq->wq_interlock.lock_data) { /* (BRINGUP */
+// panic("wait_queue_wakeup64_all_locked: lock not held on %p\n", wq); /* (BRINGUP) */
+// }
+
queue_init(q);
/*
s = splsched();
wait_queue_lock(wq);
+// if(!wq->wq_interlock.lock_data) { /* (BRINGUP */
+// panic("wait_queue_wakeup_all: we did not get the lock on %p\n", wq); /* (BRINGUP) */
+// }
ret = wait_queue_wakeup64_all_locked(
wq, (event64_t)((uint32_t)event),
result, TRUE);
return THREAD_NULL;
}
-/*
- * Routine: wait_queue_peek64_locked
- * Purpose:
- * Select the best thread from a wait queue that meet the
- * supplied criteria, but leave it on the queue it was
- * found on. The thread, and the actual wait_queue the
- * thread was found on are identified.
- * Conditions:
- * at splsched
- * wait queue locked
- * possibly recursive
- * Returns:
- * a locked thread - if one found
- * a locked waitq - the one the thread was found on
- * Note:
- * Both the waitq the thread was actually found on, and
- * the supplied wait queue, are locked after this.
- */
-__private_extern__ void
-wait_queue_peek64_locked(
- wait_queue_t wq,
- event64_t event,
- thread_t *tp,
- wait_queue_t *wqp)
-{
- wait_queue_element_t wq_element;
- wait_queue_element_t wqe_next;
- queue_t q;
-
- assert(wq->wq_fifo);
-
- *tp = THREAD_NULL;
-
- q = &wq->wq_queue;
-
- wq_element = (wait_queue_element_t) queue_first(q);
- while (!queue_end(q, (queue_entry_t)wq_element)) {
- WAIT_QUEUE_ELEMENT_CHECK(wq, wq_element);
- wqe_next = (wait_queue_element_t)
- queue_next((queue_t) wq_element);
-
- /*
- * We may have to recurse if this is a compound wait queue.
- */
- if (wq_element->wqe_type == WAIT_QUEUE_LINK) {
- wait_queue_link_t wql = (wait_queue_link_t)wq_element;
- wait_queue_t set_queue;
-
- /*
- * We have to check the set wait queue.
- */
- set_queue = (wait_queue_t)wql->wql_setqueue;
- wait_queue_lock(set_queue);
- if (! wait_queue_empty(set_queue)) {
- wait_queue_peek64_locked(set_queue, event, tp, wqp);
- }
- if (*tp != THREAD_NULL) {
- if (*wqp != set_queue)
- wait_queue_unlock(set_queue);
- return; /* thread and its waitq locked */
- }
-
- wait_queue_unlock(set_queue);
- } else {
-
- /*
- * Otherwise, its a thread. If it is waiting on
- * the event we are posting to this queue, return
- * it locked, but leave it on the queue.
- */
- thread_t t = (thread_t)wq_element;
-
- if (t->wait_event == event) {
- thread_lock(t);
- *tp = t;
- *wqp = wq;
- return;
- }
- }
- wq_element = wqe_next;
- }
-}
/*
* Routine: wait_queue_pull_thread_locked
* Purpose:
- * Pull a thread that was previously "peeked" off the wait
- * queue and (possibly) unlock the waitq.
+ * Pull a thread off its wait queue and (possibly) unlock
+ * the waitq.
* Conditions:
* at splsched
* wait queue locked
assert(wait_queue_held(wq));
-
thread = _wait_queue_select64_one(wq, event);
if (unlock)
wait_queue_unlock(wq);
projects / apple / xnu.git / blobdiff