osfmk/mach/notify.h

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * @OSF_COPYRIGHT@
  32  */
  33 /*
  34  * Mach Operating System
  35  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  36  * All Rights Reserved.
  37  *
  38  * Permission to use, copy, modify and distribute this software and its
  39  * documentation is hereby granted, provided that both the copyright
  40  * notice and this permission notice appear in all copies of the
  41  * software, derivative works or modified versions, and any portions
  42  * thereof, and that both notices appear in supporting documentation.
  43  *
  44  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  45  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  46  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  47  *
  48  * Carnegie Mellon requests users of this software to return to
  49  *
  50  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  51  *  School of Computer Science
  52  *  Carnegie Mellon University
  53  *  Pittsburgh PA 15213-3890
  54  *
  55  * any improvements or extensions that they make and grant Carnegie Mellon
  56  * the rights to redistribute these changes.
  57  */
  58 /*
  59  */
  60 /*
  61  *      File:   mach/notify.h
  62  *
  63  *      Kernel notification message definitions.
  64  */
  65
  66 #ifndef _MACH_NOTIFY_H_
  67 #define _MACH_NOTIFY_H_
  68
  69 #include <mach/port.h>
  70 #include <mach/message.h>
  71 #include <mach/ndr.h>
  72
  73 /*
  74  *  An alternative specification of the notification interface
  75  *  may be found in mach/notify.defs.
  76  */
  77
  78 #define MACH_NOTIFY_FIRST               0100
  79 #define MACH_NOTIFY_PORT_DELETED        (MACH_NOTIFY_FIRST + 001 )
  80                         /* A send or send-once right was deleted. */
  81 #define MACH_NOTIFY_PORT_DESTROYED      (MACH_NOTIFY_FIRST + 005)
  82                         /* A receive right was (would have been) deallocated */
  83 #define MACH_NOTIFY_NO_SENDERS          (MACH_NOTIFY_FIRST + 006)
  84                         /* Receive right has no extant send rights */
  85 #define MACH_NOTIFY_SEND_ONCE           (MACH_NOTIFY_FIRST + 007)
  86                         /* An extant send-once right died */
  87 #define MACH_NOTIFY_DEAD_NAME           (MACH_NOTIFY_FIRST + 010)
  88                         /* Send or send-once right died, leaving a dead-name */
  89 #define MACH_NOTIFY_LAST                (MACH_NOTIFY_FIRST + 015)
  90
  91 typedef mach_port_t notify_port_t;
  92
  93 /*
  94  * Hard-coded message structures for receiving Mach port notification
  95  * messages.  However, they are not actual large enough to receive
  96  * the largest trailers current exported by Mach IPC (so they cannot
  97  * be used for space allocations in situations using these new larger
  98  * trailers).  Instead, the MIG-generated server routines (and
  99  * related prototypes should be used).
 100  */
 101 typedef struct {
 102     mach_msg_header_t   not_header;
 103     NDR_record_t        NDR;
 104     mach_port_name_t not_port;/* MACH_MSG_TYPE_PORT_NAME */
 105     mach_msg_format_0_trailer_t trailer;
 106 } mach_port_deleted_notification_t;
 107
 108 typedef struct {
 109     mach_msg_header_t   not_header;
 110     mach_msg_body_t     not_body;
 111     mach_msg_port_descriptor_t not_port;/* MACH_MSG_TYPE_PORT_RECEIVE */
 112     mach_msg_format_0_trailer_t trailer;
 113 } mach_port_destroyed_notification_t;
 114
 115 typedef struct {
 116     mach_msg_header_t   not_header;
 117     NDR_record_t        NDR;
 118     mach_msg_type_number_t not_count;
 119     mach_msg_format_0_trailer_t trailer;
 120 } mach_no_senders_notification_t;
 121
 122 typedef struct {
 123     mach_msg_header_t   not_header;
 124     mach_msg_format_0_trailer_t trailer;
 125 } mach_send_once_notification_t;
 126
 127 typedef struct {
 128     mach_msg_header_t   not_header;
 129     NDR_record_t        NDR;
 130     mach_port_name_t not_port;/* MACH_MSG_TYPE_PORT_NAME */
 131     mach_msg_format_0_trailer_t trailer;
 132 } mach_dead_name_notification_t;
 133
 134 #endif  /* _MACH_NOTIFY_H_ */