* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
* @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
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
- *
+ *
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
+ *
* Carnegie Mellon requests users of this software to return to
- *
+ *
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
- *
+ *
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
* Definitions for port sets.
*/
-#ifndef _IPC_IPC_PSET_H_
+#ifndef _IPC_IPC_PSET_H_
#define _IPC_IPC_PSET_H_
#include <mach/mach_types.h>
#include <ipc/ipc_mqueue.h>
struct ipc_pset {
-
/*
* Initial sub-structure in common with all ipc_objects.
*/
- struct ipc_object ips_object;
- struct ipc_mqueue ips_messages;
+ struct ipc_object ips_object;
+ struct ipc_mqueue ips_messages;
};
-#define ips_references ips_object.io_references
-#define ips_local_name ips_messages.imq_local_name
+#define ips_references ips_object.io_references
+#define ips_object_to_pset(io) __container_of(io, struct ipc_pset, ips_object)
+#define ips_to_object(pset) (&(pset)->ips_object)
+#define ips_active(pset) io_active(ips_to_object(pset))
+#define ips_lock(pset) io_lock(ips_to_object(pset))
+#define ips_lock_try(pset) io_lock_try(ips_to_object(pset))
+#define ips_lock_held_kdp(pset) io_lock_held_kdp(ips_to_object(pset))
+#define ips_unlock(pset) io_unlock(ips_to_object(pset))
+#define ips_reference(pset) io_reference(ips_to_object(pset))
+#define ips_release(pset) io_release(ips_to_object(pset))
-#define ips_active(pset) io_active(&(pset)->ips_object)
-#define ips_lock(pset) io_lock(&(pset)->ips_object)
-#define ips_lock_try(pset) io_lock_try(&(pset)->ips_object)
-#define ips_unlock(pset) io_unlock(&(pset)->ips_object)
-#define ips_reference(pset) io_reference(&(pset)->ips_object)
-#define ips_release(pset) io_release(&(pset)->ips_object)
+/* get an ipc_pset pointer from an ipc_mqueue pointer */
+#define ips_from_mq(mq) \
+ __container_of(mq, struct ipc_pset, ips_messages)
/* Allocate a port set */
extern kern_return_t ipc_pset_alloc(
- ipc_space_t space,
- mach_port_name_t *namep,
- ipc_pset_t *psetp);
+ ipc_space_t space,
+ mach_port_name_t *namep,
+ ipc_pset_t *psetp);
/* Allocate a port set, with a specific name */
extern kern_return_t ipc_pset_alloc_name(
- ipc_space_t space,
- mach_port_name_t name,
- ipc_pset_t *psetp);
+ ipc_space_t space,
+ mach_port_name_t name,
+ ipc_pset_t *psetp);
+
+/* Allocate a port set in a special space */
+extern ipc_pset_t ipc_pset_alloc_special(
+ ipc_space_t space);
/* Add a port to a port set */
extern kern_return_t ipc_pset_add(
- ipc_pset_t pset,
- ipc_port_t port,
- wait_queue_link_t wql);
+ ipc_pset_t pset,
+ ipc_port_t port,
+ uint64_t *reserved_link,
+ uint64_t *reserved_prepost);
/* determine if port is a member of set */
extern boolean_t ipc_pset_member(
- ipc_pset_t pset,
- ipc_port_t port);
+ ipc_pset_t pset,
+ ipc_port_t port);
/* Remove a port from a port set */
extern kern_return_t ipc_pset_remove(
- ipc_pset_t pset,
- ipc_port_t port,
- wait_queue_link_t *wqlp);
+ ipc_pset_t pset,
+ ipc_port_t port);
+
+/* lazily initialize the wqset of a port set */
+extern kern_return_t ipc_pset_lazy_allocate(
+ ipc_space_t space,
+ mach_port_name_t psname);
/* Remove a port from all its current port sets */
extern kern_return_t ipc_pset_remove_from_all(
- ipc_port_t port,
- queue_t links);
+ ipc_port_t port);
/* Destroy a port_set */
extern void ipc_pset_destroy(
- ipc_pset_t pset);
+ ipc_space_t space,
+ ipc_pset_t pset);
+
+#if MACH_KERNEL_PRIVATE
+extern struct turnstile *filt_ipc_kqueue_turnstile(
+ struct knote *kn);
+bool
+filt_machport_kqueue_has_turnstile(
+ struct knote *kn);
+
+extern void filt_machport_turnstile_prepare_lazily(
+ struct knote *kn,
+ mach_msg_type_name_t msgt_name,
+ ipc_port_t port);
+
+extern struct turnstile *filt_machport_stash_port(
+ struct knote *kn,
+ ipc_port_t port,
+ int *link);
+#endif
-#endif /* _IPC_IPC_PSET_H_ */
+#endif /* _IPC_IPC_PSET_H_ */
projects / apple / xnu.git / blobdiff