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- /*
- * 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.
- */
- /*
- * HISTORY
- * $Log: port.h,v $
- * Revision 2.9 93/01/14 17:46:31 danner
- * Cleanup.
- * [92/06/10 pds]
- * 64bit cleanup.
- * [92/12/01 af]
- *
- * Revision 2.8 92/05/21 17:22:37 jfriedl
- * Appended 'U' to constants that would otherwise be signed.
- * [92/05/16 jfriedl]
- *
- * Revision 2.7 92/01/15 13:44:48 rpd
- * Changed MACH_IPC_COMPAT conditionals to default to not present.
- *
- * Revision 2.6 91/08/28 11:15:36 jsb
- * Added mach_port_seqno_t. Added mps_seqno to mach_port_status_t
- * and created old_mach_port_status_t for compatibility purposes.
- * [91/08/09 rpd]
- *
- * Revision 2.5 91/08/24 12:17:54 af
- * Added a set of parenthesis to MACH_PORT_TYPE to shut up gcc2.
- * [91/07/19 danner]
- *
- * Revision 2.4.4.1 91/08/19 13:48:02 danner
- * Added a set of parenthesis to MACH_PORT_TYPE to shut up gcc2.
- * [91/07/19 danner]
- *
- * Revision 2.4 91/05/14 16:58:38 mrt
- * Correcting copyright
- *
- * Revision 2.3 91/02/05 17:35:27 mrt
- * Changed to new Mach copyright
- * [91/02/01 17:20:17 mrt]
- *
- * Revision 2.2 90/06/02 14:59:44 rpd
- * Added mach_port_status_t.
- * [90/05/13 rpd]
- * Converted to new IPC.
- * [90/03/26 22:38:36 rpd]
- *
- *
- * Condensed history:
- * Put ownership rights under MACH_IPC_XXXHACK (rpd).
- * Put PORT_ENABLED under MACH_IPC_XXXHACK (rpd).
- * Removed PORT_INVALID (rpd).
- * Added port set, port name, port type declarations (rpd).
- * Added PORT_INVALID (mwyoung).
- * Added port_*_t types (mwyoung).
- * Added PORT_ENABLED (mwyoung).
- * Created (mwyoung).
- */
- /*
- * File: mach/port.h
- *
- * Definition of a port
- *
- * [The basic mach_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_
-
- #import <mach/boolean.h>
- #import <mach/machine/vm_types.h>
-
-
- typedef natural_t mach_port_t;
- typedef mach_port_t *mach_port_array_t;
-
- /*
- * MACH_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 MACH_PORT_NULL.) The value MACH_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 MACH_PORT_NULL ((mach_port_t) 0)
- #define MACH_PORT_DEAD ((mach_port_t) ~0)
-
- #define MACH_PORT_VALID(name) \
- (((name) != MACH_PORT_NULL) && ((name) != MACH_PORT_DEAD))
-
- /*
- * 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)(1 << ((right)+16)))
- #define MACH_PORT_TYPE_NONE ((mach_port_type_t) 0)
- #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 0x80000000U
- #define MACH_PORT_TYPE_MAREQUEST 0x40000000
- #define MACH_PORT_TYPE_COMPAT 0x20000000
-
- /* 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 unsigned int mach_port_mscount_t; /* make-send count */
- typedef unsigned int mach_port_msgcount_t; /* number of msgs */
- typedef unsigned int mach_port_rights_t; /* number of rights */
-
- typedef struct mach_port_status {
- mach_port_t mps_pset; /* containing port set */
- mach_port_seqno_t mps_seqno; /* sequence number */
- /*mach_port_mscount_t*/natural_t mps_mscount; /* make-send count */
- /*mach_port_msgcount_t*/natural_t mps_qlimit; /* queue limit */
- /*mach_port_msgcount_t*/natural_t mps_msgcount; /* number in the queue */
- /*mach_port_rights_t*/natural_t mps_sorights; /* how many send-once rights */
- /*boolean_t*/natural_t mps_srights; /* do send rights exist? */
- /*boolean_t*/natural_t mps_pdrequest; /* port-deleted requested? */
- /*boolean_t*/natural_t mps_nsrequest; /* no-senders requested? */
- } mach_port_status_t;
-
- #define MACH_PORT_QLIMIT_DEFAULT ((mach_port_msgcount_t) 5)
- #define MACH_PORT_QLIMIT_MAX ((mach_port_msgcount_t) 16)
-
- /*
- * Compatibility definitions, for code written
- * before there was an mps_seqno field.
- */
-
- typedef struct old_mach_port_status {
- mach_port_t mps_pset; /* containing port set */
- /*mach_port_mscount_t*/natural_t mps_mscount; /* make-send count */
- /*mach_port_msgcount_t*/natural_t mps_qlimit; /* queue limit */
- /*mach_port_msgcount_t*/natural_t mps_msgcount; /* number in the queue */
- /*mach_port_rights_t*/natural_t mps_sorights; /* how many send-once rights */
- /*boolean_t*/natural_t mps_srights; /* do send rights exist? */
- /*boolean_t*/natural_t mps_pdrequest; /* port-deleted requested? */
- /*boolean_t*/natural_t mps_nsrequest; /* no-senders requested? */
- } old_mach_port_status_t;
-
-
- /* Definitions for the old IPC interface. */
-
- typedef integer_t port_name_t; /* A capability's name */
- typedef port_name_t port_set_name_t; /* Descriptive alias */
- typedef port_name_t *port_name_array_t;
-
- typedef integer_t port_type_t; /* What kind of capability? */
- typedef port_type_t *port_type_array_t;
-
- /* Values for port_type_t */
-
- #define PORT_TYPE_NONE 0 /* No rights */
- #define PORT_TYPE_SEND 1 /* Send rights */
- #define PORT_TYPE_RECEIVE 3 /* obsolete */
- #define PORT_TYPE_OWN 5 /* obsolete */
- #define PORT_TYPE_RECEIVE_OWN 7 /* Send, receive, ownership */
- #define PORT_TYPE_SET 9 /* Set ownership */
- #define PORT_TYPE_LAST 10 /* Last assigned */
-
- typedef port_name_t port_t; /* Port with send rights */
- typedef port_t port_rcv_t; /* Port with receive rights */
- typedef port_t port_own_t; /* Port with ownership rights */
- typedef port_t port_all_t; /* Port with receive and ownership */
- typedef port_t *port_array_t;
-
- #define PORT_NULL ((port_name_t) 0) /* Used to denote no port; legal value */
-
- #import <mach/mach_param.h>
-
- #endif /* _MACH_PORT_H_ */
-