/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
+ * 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,
* 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_COPYRIGHT@
- *
+ *
*/
/*
* File: kern/sync_lock.h
#include <mach/mach_types.h>
-#include <sys/appleapiopts.h>
+#ifdef MACH_KERNEL_PRIVATE
-#ifdef __APPLE_API_PRIVATE
-
-#ifdef MACH_KERNEL_PRIVATE
-
-#include <kern/wait_queue.h>
#include <kern/macro_help.h>
#include <kern/queue.h>
-#include <kern/lock.h>
-
-typedef struct ulock {
- queue_chain_t thread_link; /* ulocks owned by a thread */
- queue_chain_t held_link; /* ulocks held in the lock set */
- queue_chain_t handoff_link; /* ulocks w/ active handoffs */
-
- decl_mutex_data(,lock) /* ulock lock */
-
- struct lock_set *lock_set; /* the retaining lock set */
- thread_act_t holder; /* thread_act that holds the lock */
- unsigned int /* flags */
- /* boolean_t */ blocked:1, /* did threads block waiting? */
- /* boolean_t */ unstable:1, /* unstable? (holder died) */
- /* boolean_t */ ho_wait:1, /* handoff thread waiting? */
- /* boolean_t */ accept_wait:1, /* accepting thread waiting? */
- :0; /* force to long boundary */
-
- struct wait_queue wait_queue; /* queue of blocked threads */
-} Ulock;
-
-typedef struct ulock *ulock_t;
-
-typedef struct lock_set {
- queue_chain_t task_link; /* chain of lock sets owned by a task */
- decl_mutex_data(,lock) /* lock set lock */
- task_t owner; /* task that owns the lock set */
- ipc_port_t port; /* lock set port */
- int ref_count; /* reference count */
-
- boolean_t active; /* active status */
- int n_ulocks; /* number of ulocks in the lock set */
-
- struct ulock ulock_list[1]; /* ulock group list place holder */
-} Lock_Set;
-
-#define ULOCK_NULL ((ulock_t) 0)
-
-#define ULOCK_FREE 0
-#define ULOCK_HELD 1
-
-/*
- * Data structure internal lock macros
- */
-
-#define lock_set_lock_init(ls) mutex_init(&(ls)->lock, \
- ETAP_THREAD_LOCK_SET)
-#define lock_set_lock(ls) mutex_lock(&(ls)->lock)
-#define lock_set_unlock(ls) mutex_unlock(&(ls)->lock)
-
-#define ulock_lock_init(ul) mutex_init(&(ul)->lock, \
- ETAP_THREAD_ULOCK)
-#define ulock_lock(ul) mutex_lock(&(ul)->lock)
-#define ulock_unlock(ul) mutex_unlock(&(ul)->lock)
-
-extern void lock_set_init(void);
-
-extern kern_return_t lock_release_internal (ulock_t ulock,
- thread_act_t thr_act);
-
-#endif /* MACH_KERNEL_PRIVATE */
-
-#endif /* __APPLE_API_PRIVATE */
-
-
-/*
- * Forward Declarations
- */
-
-extern kern_return_t lock_set_create (task_t task,
- lock_set_t *new_lock_set,
- int n_ulocks,
- int policy);
-
-extern kern_return_t lock_set_destroy (task_t task,
- lock_set_t lock_set);
-
-extern kern_return_t lock_acquire (lock_set_t lock_set,
- int lock_id);
-
-extern kern_return_t lock_release (lock_set_t lock_set,
- int lock_id);
-
-extern kern_return_t lock_try (lock_set_t lock_set,
- int lock_id);
-
-extern kern_return_t lock_make_stable (lock_set_t lock_set,
- int lock_id);
-
-extern kern_return_t lock_make_unstable (ulock_t ulock,
- thread_act_t thr_act);
-
-extern kern_return_t lock_handoff (lock_set_t lock_set,
- int lock_id);
+#include <kern/locks.h>
-extern kern_return_t lock_handoff_accept (lock_set_t lock_set,
- int lock_id);
+extern void lock_set_reference(lock_set_t lock_set);
+extern void lock_set_dereference(lock_set_t lock_set);
-extern void lock_set_reference (lock_set_t lock_set);
-extern void lock_set_dereference (lock_set_t lock_set);
+#endif /* MACH_KERNEL_PRIVATE */
#endif /* _KERN_SYNC_LOCK_H_ */
projects / apple / xnu.git / blobdiff