X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e5568f75972dfc723778653c11cb6b4dc825716a..4ba76501152d51ccb5647018f3192c6096367d48:/osfmk/ipc/ipc_pset.h diff --git a/osfmk/ipc/ipc_pset.h b/osfmk/ipc/ipc_pset.h index e673bd8d8..efdcbcf81 100644 --- a/osfmk/ipc/ipc_pset.h +++ b/osfmk/ipc/ipc_pset.h @@ -1,49 +1,55 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2004 Apple Computer, 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@ */ -/* +/* * 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. */ @@ -57,78 +63,104 @@ * Definitions for port sets. */ -#ifndef _IPC_IPC_PSET_H_ +#ifndef _IPC_IPC_PSET_H_ #define _IPC_IPC_PSET_H_ +#include #include #include -#include +#include +#include #include #include -#include - -typedef struct ipc_pset { - +struct ipc_pset { /* * Initial sub-structure in common with all ipc_objects. */ - struct ipc_object ips_object; - struct ipc_mqueue ips_messages; -} *ipc_pset_t; - -#define ips_references ips_object.io_references -#define ips_local_name ips_object.io_receiver_name - -#define IPS_NULL ((ipc_pset_t) IO_NULL) - -#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) + struct ipc_object ips_object; + struct ipc_mqueue ips_messages; +}; + +#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)) + +/* 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); /* 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_ */