[apple/xnu.git] / osfmk / mach / port.h

/*
 * Copyright (c) 2000 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
 * 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@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 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.
 */
/*
 */
/*
 *	File:	mach/port.h
 *
 *	Definition of a port
 *
 *	[The basic port_t type should probably be machine-dependent,
 *	as it must be represented by a 32-bit integer.]
 */

#ifndef	_MACH_PORT_H_
#define _MACH_PORT_H_

#include <stdint.h>
#include <mach/boolean.h>
#include <mach/machine/vm_types.h>

#include <sys/appleapiopts.h>

/*
 * A port_name_t is a 32 bit value which represents a name of a
 * port right within some ipc space.  This is a constant definition
 * everywhere.
 *
 * The type port_t represents a reference added or deleted to a
 * port right.
 *
 * 	At user space, this is represented by returning the name of
 *	the right(s) that got altered within the user's ipc space.
 *	So a port_t is the same type as a port_name_t there.
 *
 *	Since there is no right space for the kernel proper (all rights
 *	are naked rights) these rights are represented by passing a
 *	pointer to the specific ipc_object_t subclass (typically
 *	ipc_port_t) that got altered/is to be altered.
 *
 *	JMM - Because of this pointer/integer overloading, port names
 *	should be defined as uintptr_t types.  But that would make
 *	message headers and descriptors pointer-length dependent.
 */
typedef natural_t port_name_t;
typedef port_name_t *port_name_array_t;

#ifdef KERNEL_PRIVATE

#if !defined(__APPLE_API_PRIVATE) || !defined(MACH_KERNEL_PRIVATE)
/*
 * For kernel code that resides outside of mach
 * we define empty structs so that everything will
 * remain strongly typed, without giving out
 * implementation details.
 */
struct ipc_port ;

#endif /* !__APPLE_API_PRIVATE || !MACH_KERNEL_PRIVATE */

typedef struct ipc_port	        *ipc_port_t;
typedef ipc_port_t 		port_t;

#define	IPC_PORT_NULL		((ipc_port_t) 0)
#define	IPC_PORT_DEAD		((ipc_port_t)~0)
#define IPC_PORT_VALID(port)	(((port) != IPC_PORT_NULL) && \
				 ((port) != IPC_PORT_DEAD))

#else  /* ! KERNEL_PRIVATE */

typedef port_name_t 		port_t;

#endif /* KERNEL_PRIVATE */

/*
 *  PORT_NULL is a legal value that can be carried in messages.
 *  It indicates the absence of any port or port rights.  (A port
 *  argument keeps the message from being "simple", even if the
 *  value is PORT_NULL.)  The value PORT_DEAD is also a legal
 *  value that can be carried in messages.  It indicates
 *  that a port right was present, but it died.
 */
#define PORT_NULL		((port_t) 0)
#define PORT_DEAD		((port_t) ~0)
#define	PORT_VALID(name)				\
		(((port_t)(name) != PORT_NULL) &&	\
                 ((port_t)(name) != PORT_DEAD))

/*
 *  Mach 3.0 renamed everything to have mach_ in front of it.
 *  Do that mapping here, so we have the types and macros in
 *  both formats.
 */
typedef port_t			mach_port_t;
typedef port_t			*mach_port_array_t;
typedef port_name_t		mach_port_name_t;
typedef mach_port_name_t	*mach_port_name_array_t;

#define MACH_PORT_NULL		0  /* intentional loose typing */
#define MACH_PORT_DEAD		((mach_port_name_t) ~0)
#define MACH_PORT_VALID(name)				\
		(((name) != MACH_PORT_NULL) && 		\
		 ((name) != MACH_PORT_DEAD))

/*
 *  mach_port_name_t must be an unsigned type.  Port values
 *  have two parts, a generation number and an index.
 *  These macros encapsulate all knowledge of how
 *  a mach_port_name_t is laid out.  They are made visible 
 *  to user tasks so that packages to map from a mach_port_name_t
 *  to associated user data can discount the generation
 *  nuber (if desired) in doing the mapping.
 *
 *  Within the kernel, ipc/ipc_entry.c implicitly assumes
 *  when it uses the splay tree functions that the generation
 *  number is in the low bits, so that names are ordered first
 *  by index and then by generation.  If the size of generation
 *  numbers changes, be sure to update IE_BITS_GEN_MASK and
 *  friends in ipc/ipc_entry.h.
 */
#ifndef NO_PORT_GEN
#define	MACH_PORT_INDEX(name)		((name) >> 8)
#define	MACH_PORT_GEN(name)		(((name) & 0xff) << 24)
#define	MACH_PORT_MAKE(index, gen)	\
		(((index) << 8) | (gen) >> 24)
#else
#define	MACH_PORT_INDEX(name)		(name)
#define	MACH_PORT_GEN(name)		(0)
#define	MACH_PORT_MAKE(index, gen)	(index)
#endif	/* !NO_PORT_GEN */

/*
 *  These are the different rights a task may have.
 *  The MACH_PORT_RIGHT_* definitions are used as arguments
 *  to mach_port_allocate, mach_port_get_refs, etc, to specify
 *  a particular right to act upon.  The mach_port_names and
 *  mach_port_type calls return bitmasks using the MACH_PORT_TYPE_*
 *  definitions.  This is because a single name may denote
 *  multiple rights.
 */

typedef natural_t mach_port_right_t;

#define MACH_PORT_RIGHT_SEND		((mach_port_right_t) 0)
#define MACH_PORT_RIGHT_RECEIVE		((mach_port_right_t) 1)
#define MACH_PORT_RIGHT_SEND_ONCE	((mach_port_right_t) 2)
#define MACH_PORT_RIGHT_PORT_SET	((mach_port_right_t) 3)
#define MACH_PORT_RIGHT_DEAD_NAME	((mach_port_right_t) 4)
#define MACH_PORT_RIGHT_NUMBER		((mach_port_right_t) 5)

typedef natural_t mach_port_type_t;
typedef mach_port_type_t *mach_port_type_array_t;

#define MACH_PORT_TYPE(right)						\
		((mach_port_type_t)(((mach_port_type_t) 1)  		\
		<< ((right) + ((mach_port_right_t) 16))))	
#define MACH_PORT_TYPE_NONE	    ((mach_port_type_t) 0L)
#define MACH_PORT_TYPE_SEND	    MACH_PORT_TYPE(MACH_PORT_RIGHT_SEND)
#define MACH_PORT_TYPE_RECEIVE	    MACH_PORT_TYPE(MACH_PORT_RIGHT_RECEIVE)
#define MACH_PORT_TYPE_SEND_ONCE    MACH_PORT_TYPE(MACH_PORT_RIGHT_SEND_ONCE)
#define MACH_PORT_TYPE_PORT_SET	    MACH_PORT_TYPE(MACH_PORT_RIGHT_PORT_SET)
#define MACH_PORT_TYPE_DEAD_NAME    MACH_PORT_TYPE(MACH_PORT_RIGHT_DEAD_NAME)

/* Convenient combinations. */

#define MACH_PORT_TYPE_SEND_RECEIVE					\
		(MACH_PORT_TYPE_SEND|MACH_PORT_TYPE_RECEIVE)
#define	MACH_PORT_TYPE_SEND_RIGHTS					\
		(MACH_PORT_TYPE_SEND|MACH_PORT_TYPE_SEND_ONCE)
#define	MACH_PORT_TYPE_PORT_RIGHTS					\
		(MACH_PORT_TYPE_SEND_RIGHTS|MACH_PORT_TYPE_RECEIVE)
#define	MACH_PORT_TYPE_PORT_OR_DEAD					\
		(MACH_PORT_TYPE_PORT_RIGHTS|MACH_PORT_TYPE_DEAD_NAME)
#define MACH_PORT_TYPE_ALL_RIGHTS					\
		(MACH_PORT_TYPE_PORT_OR_DEAD|MACH_PORT_TYPE_PORT_SET)

/* Dummy type bits that mach_port_type/mach_port_names can return. */

#define MACH_PORT_TYPE_DNREQUEST	0x80000000

/* User-references for capabilities. */

typedef natural_t mach_port_urefs_t;
typedef integer_t mach_port_delta_t;			/* change in urefs */

/* Attributes of ports.  (See mach_port_get_receive_status.) */

typedef natural_t mach_port_seqno_t;		/* sequence number */
typedef natural_t mach_port_mscount_t;		/* make-send count */
typedef natural_t mach_port_msgcount_t;		/* number of msgs */
typedef natural_t mach_port_rights_t;		/* number of rights */

/*
 *	Are there outstanding send rights for a given port?
 */
#define	MACH_PORT_SRIGHTS_NONE		0		/* no srights */
#define	MACH_PORT_SRIGHTS_PRESENT	1		/* srights */
typedef unsigned int mach_port_srights_t;	/* status of send rights */

typedef struct mach_port_status {
	mach_port_name_t	mps_pset;	/* containing port set */
	mach_port_seqno_t	mps_seqno;	/* sequence number */
	mach_port_mscount_t	mps_mscount;	/* make-send count */
	mach_port_msgcount_t	mps_qlimit;	/* queue limit */
	mach_port_msgcount_t	mps_msgcount;	/* number in the queue */
	mach_port_rights_t	mps_sorights;	/* how many send-once rights */
	boolean_t		mps_srights;	/* do send rights exist? */
	boolean_t		mps_pdrequest;	/* port-deleted requested? */
	boolean_t		mps_nsrequest;	/* no-senders requested? */
	unsigned int		mps_flags;	/* port flags */
} mach_port_status_t;

#define MACH_PORT_QLIMIT_DEFAULT	((mach_port_msgcount_t) 5)
#define MACH_PORT_QLIMIT_MAX		((mach_port_msgcount_t) 16)

typedef struct mach_port_limits {
	mach_port_msgcount_t	mpl_qlimit;	/* number of msgs */
} mach_port_limits_t;

typedef integer_t *mach_port_info_t;		/* varying array of natural_t */

/* Flavors for mach_port_get/set_attributes() */
typedef int	mach_port_flavor_t;
#define MACH_PORT_LIMITS_INFO		1	/* uses mach_port_status_t */
#define MACH_PORT_RECEIVE_STATUS	2	/* uses mach_port_limits_t */
#define MACH_PORT_DNREQUESTS_SIZE	3	/* info is int */

#define MACH_PORT_LIMITS_INFO_COUNT \
	(sizeof(mach_port_limits_t)/sizeof(natural_t))
#define MACH_PORT_RECEIVE_STATUS_COUNT \
	(sizeof(mach_port_status_t)/sizeof(natural_t))
#define MACH_PORT_DNREQUESTS_SIZE_COUNT 1

/*
 * Structure used to pass information about port allocation requests.
 * Must be padded to 64-bits total length.
 */

typedef struct mach_port_qos {
	boolean_t		name:1;		/* name given */
	boolean_t		prealloc:1;	/* prealloced message */
	boolean_t		pad1:30;
	natural_t		len;
} mach_port_qos_t;

#endif	/* _MACH_PORT_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*/
	25	/*
	26	* Mach Operating System
	27	* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
	28	* All Rights Reserved.
	29	*
	30	* Permission to use, copy, modify and distribute this software and its
	31	* documentation is hereby granted, provided that both the copyright
	32	* notice and this permission notice appear in all copies of the
	33	* software, derivative works or modified versions, and any portions
	34	* thereof, and that both notices appear in supporting documentation.
	35	*
	36	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	37	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	38	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	39	*
	40	* Carnegie Mellon requests users of this software to return to
	41	*
	42	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	43	* School of Computer Science
	44	* Carnegie Mellon University
	45	* Pittsburgh PA 15213-3890
	46	*
	47	* any improvements or extensions that they make and grant Carnegie Mellon
	48	* the rights to redistribute these changes.
	49	*/
	50	/*
	51	*/
	52	/*
	53	* File: mach/port.h
	54	*
	55	* Definition of a port
	56	*
	57	* [The basic port_t type should probably be machine-dependent,
	58	* as it must be represented by a 32-bit integer.]
	59	*/
	60
	61	#ifndef _MACH_PORT_H_
	62	#define _MACH_PORT_H_
	63
9bccf70c	64	#include <stdint.h>
1c79356b A	65	#include <mach/boolean.h>
	66	#include <mach/machine/vm_types.h>
	67
9bccf70c A	68	#include <sys/appleapiopts.h>
9bccf70c A	69
1c79356b A	70	/*
	71	* A port_name_t is a 32 bit value which represents a name of a
	72	* port right within some ipc space. This is a constant definition
	73	* everywhere.
	74	*
	75	* The type port_t represents a reference added or deleted to a
	76	* port right.
	77	*
	78	* At user space, this is represented by returning the name of
	79	* the right(s) that got altered within the user's ipc space.
	80	* So a port_t is the same type as a port_name_t there.
	81	*
	82	* Since there is no right space for the kernel proper (all rights
	83	* are naked rights) these rights are represented by passing a
	84	* pointer to the specific ipc_object_t subclass (typically
	85	* ipc_port_t) that got altered/is to be altered.
9bccf70c A	86	*
	87	* JMM - Because of this pointer/integer overloading, port names
	88	* should be defined as uintptr_t types. But that would make
	89	* message headers and descriptors pointer-length dependent.
1c79356b A	90	*/
	91	typedef natural_t port_name_t;
	92	typedef port_name_t *port_name_array_t;
	93
	94	#ifdef KERNEL_PRIVATE
	95
9bccf70c A	96	#if !defined(__APPLE_API_PRIVATE) \|\| !defined(MACH_KERNEL_PRIVATE)
	97	/*
	98	* For kernel code that resides outside of mach
	99	* we define empty structs so that everything will
	100	* remain strongly typed, without giving out
	101	* implementation details.
	102	*/
	103	struct ipc_port ;
	104
	105	#endif /* !__APPLE_API_PRIVATE \|\| !MACH_KERNEL_PRIVATE */
	106
	107	typedef struct ipc_port *ipc_port_t;
	108	typedef ipc_port_t port_t;
	109
	110	#define IPC_PORT_NULL ((ipc_port_t) 0)
	111	#define IPC_PORT_DEAD ((ipc_port_t)~0)
	112	#define IPC_PORT_VALID(port) (((port) != IPC_PORT_NULL) && \
	113	((port) != IPC_PORT_DEAD))
1c79356b A	114
	115	#else /* ! KERNEL_PRIVATE */
	116
9bccf70c	117	typedef port_name_t port_t;
1c79356b A	118
	119	#endif /* KERNEL_PRIVATE */
	120
	121	/*
	122	* PORT_NULL is a legal value that can be carried in messages.
	123	* It indicates the absence of any port or port rights. (A port
	124	* argument keeps the message from being "simple", even if the
	125	* value is PORT_NULL.) The value PORT_DEAD is also a legal
	126	* value that can be carried in messages. It indicates
	127	* that a port right was present, but it died.
	128	*/
	129	#define PORT_NULL ((port_t) 0)
	130	#define PORT_DEAD ((port_t) ~0)
	131	#define PORT_VALID(name) \
	132	(((port_t)(name) != PORT_NULL) && \
	133	((port_t)(name) != PORT_DEAD))
	134
	135	/*
	136	* Mach 3.0 renamed everything to have mach_ in front of it.
	137	* Do that mapping here, so we have the types and macros in
	138	* both formats.
	139	*/
	140	typedef port_t mach_port_t;
	141	typedef port_t *mach_port_array_t;
	142	typedef port_name_t mach_port_name_t;
	143	typedef mach_port_name_t *mach_port_name_array_t;
	144
	145	#define MACH_PORT_NULL 0 /* intentional loose typing */
	146	#define MACH_PORT_DEAD ((mach_port_name_t) ~0)
	147	#define MACH_PORT_VALID(name) \
	148	(((name) != MACH_PORT_NULL) && \
	149	((name) != MACH_PORT_DEAD))
	150
	151	/*
	152	* mach_port_name_t must be an unsigned type. Port values
	153	* have two parts, a generation number and an index.
	154	* These macros encapsulate all knowledge of how
	155	* a mach_port_name_t is laid out. They are made visible
	156	* to user tasks so that packages to map from a mach_port_name_t
	157	* to associated user data can discount the generation
	158	* nuber (if desired) in doing the mapping.
	159	*
	160	* Within the kernel, ipc/ipc_entry.c implicitly assumes
	161	* when it uses the splay tree functions that the generation
	162	* number is in the low bits, so that names are ordered first
	163	* by index and then by generation. If the size of generation
	164	* numbers changes, be sure to update IE_BITS_GEN_MASK and
	165	* friends in ipc/ipc_entry.h.
	166	*/
	167	#ifndef NO_PORT_GEN
	168	#define MACH_PORT_INDEX(name) ((name) >> 8)
	169	#define MACH_PORT_GEN(name) (((name) & 0xff) << 24)
	170	#define MACH_PORT_MAKE(index, gen) \
	171	(((index) << 8) \| (gen) >> 24)
	172	#else
	173	#define MACH_PORT_INDEX(name) (name)
	174	#define MACH_PORT_GEN(name) (0)
	175	#define MACH_PORT_MAKE(index, gen) (index)
	176	#endif /* !NO_PORT_GEN */
	177
	178	/*
	179	* These are the different rights a task may have.
	180	* The MACH_PORT_RIGHT_* definitions are used as arguments
	181	* to mach_port_allocate, mach_port_get_refs, etc, to specify
182	* a particular right to act upon. The mach_port_names and
183	* mach_port_type calls return bitmasks using the MACH_PORT_TYPE_*
184	* definitions. This is because a single name may denote
185	* multiple rights.
186	*/
187
188	typedef natural_t mach_port_right_t;
189
190	#define MACH_PORT_RIGHT_SEND ((mach_port_right_t) 0)
191	#define MACH_PORT_RIGHT_RECEIVE ((mach_port_right_t) 1)
192	#define MACH_PORT_RIGHT_SEND_ONCE ((mach_port_right_t) 2)
193	#define MACH_PORT_RIGHT_PORT_SET ((mach_port_right_t) 3)
194	#define MACH_PORT_RIGHT_DEAD_NAME ((mach_port_right_t) 4)
195	#define MACH_PORT_RIGHT_NUMBER ((mach_port_right_t) 5)
196
197	typedef natural_t mach_port_type_t;
198	typedef mach_port_type_t *mach_port_type_array_t;
199
200	#define MACH_PORT_TYPE(right) \
201	((mach_port_type_t)(((mach_port_type_t) 1) \
202	<< ((right) + ((mach_port_right_t) 16))))
203	#define MACH_PORT_TYPE_NONE ((mach_port_type_t) 0L)
204	#define MACH_PORT_TYPE_SEND MACH_PORT_TYPE(MACH_PORT_RIGHT_SEND)
205	#define MACH_PORT_TYPE_RECEIVE MACH_PORT_TYPE(MACH_PORT_RIGHT_RECEIVE)
206	#define MACH_PORT_TYPE_SEND_ONCE MACH_PORT_TYPE(MACH_PORT_RIGHT_SEND_ONCE)
207	#define MACH_PORT_TYPE_PORT_SET MACH_PORT_TYPE(MACH_PORT_RIGHT_PORT_SET)
208	#define MACH_PORT_TYPE_DEAD_NAME MACH_PORT_TYPE(MACH_PORT_RIGHT_DEAD_NAME)
209
210	/* Convenient combinations. */
211
212	#define MACH_PORT_TYPE_SEND_RECEIVE \
213	(MACH_PORT_TYPE_SEND\|MACH_PORT_TYPE_RECEIVE)
214	#define MACH_PORT_TYPE_SEND_RIGHTS \
215	(MACH_PORT_TYPE_SEND\|MACH_PORT_TYPE_SEND_ONCE)
216	#define MACH_PORT_TYPE_PORT_RIGHTS \
217	(MACH_PORT_TYPE_SEND_RIGHTS\|MACH_PORT_TYPE_RECEIVE)
218	#define MACH_PORT_TYPE_PORT_OR_DEAD \
219	(MACH_PORT_TYPE_PORT_RIGHTS\|MACH_PORT_TYPE_DEAD_NAME)
220	#define MACH_PORT_TYPE_ALL_RIGHTS \
221	(MACH_PORT_TYPE_PORT_OR_DEAD\|MACH_PORT_TYPE_PORT_SET)
222
223	/* Dummy type bits that mach_port_type/mach_port_names can return. */
224
225	#define MACH_PORT_TYPE_DNREQUEST 0x80000000
226
227	/* User-references for capabilities. */
228
229	typedef natural_t mach_port_urefs_t;
230	typedef integer_t mach_port_delta_t; /* change in urefs */
231
232	/* Attributes of ports. (See mach_port_get_receive_status.) */
233
234	typedef natural_t mach_port_seqno_t; /* sequence number */
235	typedef natural_t mach_port_mscount_t; /* make-send count */
236	typedef natural_t mach_port_msgcount_t; /* number of msgs */
237	typedef natural_t mach_port_rights_t; /* number of rights */
238
239	/*
9bccf70c	240	* Are there outstanding send rights for a given port?
1c79356b	241	*/
9bccf70c A	242	#define MACH_PORT_SRIGHTS_NONE 0 /* no srights */
9bccf70c A	243	#define MACH_PORT_SRIGHTS_PRESENT 1 /* srights */
1c79356b A	244	typedef unsigned int mach_port_srights_t; /* status of send rights */
	245
	246	typedef struct mach_port_status {
	247	mach_port_name_t mps_pset; /* containing port set */
	248	mach_port_seqno_t mps_seqno; /* sequence number */
	249	mach_port_mscount_t mps_mscount; /* make-send count */
	250	mach_port_msgcount_t mps_qlimit; /* queue limit */
	251	mach_port_msgcount_t mps_msgcount; /* number in the queue */
	252	mach_port_rights_t mps_sorights; /* how many send-once rights */
	253	boolean_t mps_srights; /* do send rights exist? */
	254	boolean_t mps_pdrequest; /* port-deleted requested? */
	255	boolean_t mps_nsrequest; /* no-senders requested? */
	256	unsigned int mps_flags; /* port flags */
	257	} mach_port_status_t;
	258
	259	#define MACH_PORT_QLIMIT_DEFAULT ((mach_port_msgcount_t) 5)
	260	#define MACH_PORT_QLIMIT_MAX ((mach_port_msgcount_t) 16)
	261
	262	typedef struct mach_port_limits {
	263	mach_port_msgcount_t mpl_qlimit; /* number of msgs */
	264	} mach_port_limits_t;
	265
	266	typedef integer_t mach_port_info_t; / varying array of natural_t */
	267
	268	/* Flavors for mach_port_get/set_attributes() */
	269	typedef int mach_port_flavor_t;
	270	#define MACH_PORT_LIMITS_INFO 1 /* uses mach_port_status_t */
	271	#define MACH_PORT_RECEIVE_STATUS 2 /* uses mach_port_limits_t */
	272	#define MACH_PORT_DNREQUESTS_SIZE 3 /* info is int */
	273
	274	#define MACH_PORT_LIMITS_INFO_COUNT \
	275	(sizeof(mach_port_limits_t)/sizeof(natural_t))
	276	#define MACH_PORT_RECEIVE_STATUS_COUNT \
	277	(sizeof(mach_port_status_t)/sizeof(natural_t))
	278	#define MACH_PORT_DNREQUESTS_SIZE_COUNT 1
	279
	280	/*
	281	* Structure used to pass information about port allocation requests.
	282	* Must be padded to 64-bits total length.
	283	*/
	284
	285	typedef struct mach_port_qos {
	286	boolean_t name:1; /* name given */
	287	boolean_t prealloc:1; /* prealloced message */
	288	boolean_t pad1:30;
	289	natural_t len;
	290	} mach_port_qos_t;
	291
	292	#endif /* _MACH_PORT_H_ */