X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..4ba76501152d51ccb5647018f3192c6096367d48:/osfmk/ipc/ipc_pset.h diff --git a/osfmk/ipc/ipc_pset.h b/osfmk/ipc/ipc_pset.h index 26c1f26c0..efdcbcf81 100644 --- a/osfmk/ipc/ipc_pset.h +++ b/osfmk/ipc/ipc_pset.h @@ -2,7 +2,7 @@ * 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 @@ -11,10 +11,10 @@ * 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, @@ -22,34 +22,34 @@ * 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. */ @@ -63,7 +63,7 @@ * Definitions for port sets. */ -#ifndef _IPC_IPC_PSET_H_ +#ifndef _IPC_IPC_PSET_H_ #define _IPC_IPC_PSET_H_ #include @@ -74,73 +74,93 @@ #include #include -#include - 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_check_unlock(pset) io_check_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); + 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); + 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); + ipc_port_t port); /* Destroy a port_set */ extern void ipc_pset_destroy( - ipc_pset_t pset); - -#define ipc_pset_reference(pset) \ - ipc_object_reference(&(pset)->ips_object) - -#define ipc_pset_release(pset) \ - ipc_object_release(&(pset)->ips_object) - - -#if MACH_KDB -int ipc_list_count(struct ipc_kmsg *base); -#endif /* MACH_KDB */ - -#endif /* _IPC_IPC_PSET_H_ */ + 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_ */