xnu-6153.141.1.tar.gz

[apple/xnu.git] / osfmk / kern / sync_sema.h

diff --git a/osfmk/kern/sync_sema.h b/osfmk/kern/sync_sema.h
index 8d50bcfa74bff924687106201ddbf85bf96d754f..bb2f0a174a1d2e43a6710c4c457e973f492b5540 100644 (file)
--- a/osfmk/kern/sync_sema.h
+++ b/osfmk/kern/sync_sema.h
@@ -1,27 +1,33 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
- * @APPLE_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 Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * 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.
+ *
+ * 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
- * 
+ *
  */
 /*
  *     File:   kern/sync_sema.h
@@ -39,26 +45,27 @@
 #ifdef MACH_KERNEL_PRIVATE
 
 #include <kern/queue.h>
-#include <kern/lock.h>
-#include <kern/wait_queue.h>
+#include <kern/waitq.h>
+#include <os/refcnt.h>
 
 typedef struct semaphore {
-       queue_chain_t     task_link;  /* chain of semaphores owned by a task */
-       struct wait_queue wait_queue; /* queue of blocked threads & lock     */
-       task_t            owner;      /* task that owns semaphore            */
-       ipc_port_t        port;       /* semaphore port                      */
-       int               ref_count;  /* reference count                     */
-       int               count;      /* current count value                 */
-       boolean_t         active;     /* active status                       */
+       queue_chain_t     task_link;  /* chain of semaphores owned by a task */
+       struct waitq      waitq;      /* queue of blocked threads & lock     */
+       task_t            owner;      /* task that owns semaphore            */
+       ipc_port_t        port;       /* semaphore port                      */
+       os_refcnt_t       ref_count;  /* reference count                     */
+       int               count;      /* current count value                 */
+       boolean_t         active;     /* active status                       */
 } Semaphore;
 
-#define semaphore_lock(semaphore)   wait_queue_lock(&(semaphore)->wait_queue)
-#define semaphore_unlock(semaphore) wait_queue_unlock(&(semaphore)->wait_queue)
+#define semaphore_lock(semaphore)   waitq_lock(&(semaphore)->waitq)
+#define semaphore_unlock(semaphore) waitq_unlock(&(semaphore)->waitq)
 
 extern void semaphore_init(void);
 
-extern void            semaphore_reference     (semaphore_t semaphore);
-extern void            semaphore_dereference   (semaphore_t semaphore);
+extern  void            semaphore_reference(semaphore_t semaphore);
+extern  void            semaphore_dereference(semaphore_t semaphore);
+extern  void            semaphore_destroy_all(task_t task);
 
 #endif /* MACH_KERNEL_PRIVATE */