X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8ad349bb6ed4a0be06e34c92be0d98b92e078db4..HEAD:/osfmk/ipc/port.h?ds=sidebyside diff --git a/osfmk/ipc/port.h b/osfmk/ipc/port.h index 153703502..852a850b5 100644 --- a/osfmk/ipc/port.h +++ b/osfmk/ipc/port.h @@ -1,57 +1,55 @@ /* * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_OSREFERENCE_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. + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * 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. * - * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and + * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and * limitations under the License. * - * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ + * @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. */ @@ -65,12 +63,12 @@ * Implementation specific complement to mach/port.h. */ -#ifndef _IPC_PORT_H_ +#ifndef _IPC_PORT_H_ #define _IPC_PORT_H_ #include -#define MACH_PORT_NGEN(name) MACH_PORT_MAKE(0, MACH_PORT_GEN(name)) +#define MACH_PORT_NGEN(name) MACH_PORT_MAKE(0, MACH_PORT_GEN(name)) /* * Typedefs for code cleanliness. These must all have @@ -78,14 +76,27 @@ */ -#define MACH_PORT_UREFS_MAX ((mach_port_urefs_t) ((1 << 16) - 1)) +#define MACH_PORT_UREFS_MAX ((mach_port_urefs_t) ((1 << 16) - 1)) + +#define MACH_PORT_UREFS_OVERFLOW(urefs, delta) \ + (((delta) > 0) && \ + ((((urefs) + (delta)) <= (urefs)) || \ + (((urefs) + (delta)) >= MACH_PORT_UREFS_MAX))) + +#define MACH_PORT_UREFS_UNDERFLOW(urefs, delta) \ + (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs))) -#define MACH_PORT_UREFS_OVERFLOW(urefs, delta) \ - (((delta) > 0) && \ - ((((urefs) + (delta)) <= (urefs)) || \ - (((urefs) + (delta)) > MACH_PORT_UREFS_MAX))) +__BEGIN_DECLS +extern void mach_port_guard_exception( + mach_port_name_t name, + uint64_t inguard, + uint64_t portguard, + unsigned reason); -#define MACH_PORT_UREFS_UNDERFLOW(urefs, delta) \ - (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs))) +extern void mach_port_guard_exception_immovable( + mach_port_name_t name, + mach_port_t port, + uint64_t portguard); +__END_DECLS -#endif /* _IPC_PORT_H_ */ +#endif /* _IPC_PORT_H_ */