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

/*
 * Copyright (c) 2000 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.
 *
 * 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@
 */
/*
 * @OSF_COPYRIGHT@
 * 
 */
/*
 * HISTORY
 * 
 * Revision 1.1.1.1  1998/09/22 21:05:30  wsanchez
 * Import of Mac OS X kernel (~semeria)
 *
 * Revision 1.1.1.1  1998/03/07 02:25:45  wsanchez
 * Import of OSF Mach kernel (~mburg)
 *
 * Revision 1.1.7.1  1996/09/17  16:34:35  bruel
 * 	fixed types.
 * 	[96/09/17            bruel]
 *
 * Revision 1.1.5.1  1995/06/13  18:20:20  sjs
 * 	Merged from flipc_shared.
 * 	[95/06/07            sjs]
 * 
 * Revision 1.1.3.11  1995/05/23  19:55:36  randys
 * 	Don't keep track of messages sent to a bad destination--that's
 * 	purely a transport function now.
 * 	[95/05/23            randys]
 * 
 * Revision 1.1.3.10  1995/05/23  15:40:20  randys
 * 	Added field to FLIPC_domain_errors to indicate validity of other
 * 	fields.
 * 	[95/05/22            randys]
 * 
 * Revision 1.1.3.9  1995/05/16  20:46:35  randys
 * 	Added a "performance_valid" field to the flipc performance
 * 	structure.
 * 	[95/05/16            randys]
 * 
 * Revision 1.1.3.8  1995/04/05  21:22:01  randys
 * 	Added field to domain_info struct to include allocations lock
 * 	sched policy.
 * 	[95/04/05            randys]
 * 
 * Revision 1.1.3.7  1995/03/09  19:42:33  rwd
 * 	Define SEMAPHORE_NULL (for now) and include mach_types.h instead
 * 	of sema_types.h.
 * 	[95/03/08            rwd]
 * 
 * Revision 1.1.3.6  1995/02/23  21:32:52  randys
 * 	 Removed placeholder definition for locks--I don't believe that I
 * 	 use locks unless I'm on top of a real time base, in which case
 * 	 that base will define the type.
 * 	[95/02/22            randys]
 * 
 * Revision 1.1.3.5  1995/02/21  17:23:13  randys
 * 	Re-indented code to four space indentation
 * 	[1995/02/21  16:25:36  randys]
 * 
 * Revision 1.1.3.4  1995/02/16  23:20:14  randys
 * 	ANSIfy FLIPC_thread_yield_function.
 * 	[95/02/14            randys]
 * 
 * 	Add FLIPC_thread_yield_function type.
 * 	[95/02/14            randys]
 * 
 * Revision 1.1.3.3  1995/01/26  21:01:51  randys
 * 	Added performance structure.
 * 	[1995/01/24  21:14:12  randys]
 * 
 * 	Added FLIPC_epgroup_info struct
 * 	[1995/01/24  18:30:02  randys]
 * 
 * 	Create a new structure (FLIPC_endpoint_info) to return
 * 	information about an endpoint.
 * 	[1995/01/20  19:26:35  randys]
 * 
 * 	Get rid of FLIPC_DESTINATION_NULL and add in
 * 	FLIPC_ADDRESS_ERROR (return code from FLIPC_buffer_destination)
 * 	[1995/01/19  20:23:24  randys]
 * 
 * 	Added domain index type for specifying domain in
 * 	init and attach calls
 * 	[1995/01/18  16:47:25  randys]
 * 
 * Revision 1.1.3.2  1994/12/20  19:02:09  randys
 * 	Added error reporting structure type, and added
 * 	room in the standard domain query for error log size.
 * 	[1994/12/19  23:46:09  randys]
 * 
 * 	Added filename in comment at top of each file
 * 	[1994/12/19  20:28:26  randys]
 * 
 * 	Support and doc for minor user interface changes for error conditions
 * 	[1994/12/18  23:24:30  randys]
 * 
 * 	Yank the semaphore type definitions back out, and include the file
 * 	that defines those types.
 * 	[1994/12/13  17:50:03  randys]
 * 
 * Revision 1.1.3.1  1994/12/12  17:46:20  randys
 * 	Put definitions of semaphore_t and SEMAPHORE_NULL back in; they aren't
 * 	defined in user space yet.
 * 	[1994/12/12  17:21:56  randys]
 * 
 * Revision 1.1.1.2  1994/12/11  23:11:23  randys
 * 	Initial flipc code checkin
 * 
 * $EndLog$
 */

/*
 * mach/flipc_types.h
 *
 * Definitions of those flipc types that need to be visible to both the AIL
 * and kernel sides of flipc (which is just about everything).
 */

#ifndef _MACH_FLIPC_TYPES_H_
#define _MACH_FLIPC_TYPES_H_

#include <mach/port.h>

/*
 * Define a couple of generally useful types.
 */
#include <mach/mach_types.h>

#ifndef MACH_KERNEL
#define SEMAPHORE_NULL (semaphore_port_t)0
#endif /* !defined(MACH_KERNEL) */

/*
 * Basic flipc types; visible to both user and kernel segments of the
 * flipc implementation.
 */
/* Flipc addresses.  These name a node-endpoint combination for
   sending.  */
typedef unsigned int FLIPC_address_t;
#define FLIPC_ADDRESS_ERROR ((FLIPC_address_t) -1)

/* Flipc endpoints.  */
typedef void *FLIPC_endpoint_t;
#define FLIPC_ENDPOINT_NULL ((FLIPC_endpoint_t) 0)

/* Buffer pointers (returned by query functions).  Users are allowed to
   copy directly to/from this pointer; it points at their data.  */
typedef void *FLIPC_buffer_t;   
#define FLIPC_BUFFER_NULL ((FLIPC_buffer_t) 0)   

/* Endpoint group identifiers.  */
typedef void *FLIPC_epgroup_t;
#define FLIPC_EPGROUP_NULL ((FLIPC_epgroup_t) 0)
#define FLIPC_EPGROUP_ERROR ((FLIPC_epgroup_t) -1)

/* Domain index; argument to initialization and attach routines.  */
typedef unsigned int FLIPC_domain_index_t;

/* Domain handle (mach port).  */
typedef mach_port_t FLIPC_domain_t;

/* The different types an endpoint can be.  FLIPC_Inactive is used when
   the endpoint has not been configured and hence is on the freelist.  */
typedef enum {
    FLIPC_Inactive = -1,
    FLIPC_Send,
    FLIPC_Receive
} FLIPC_endpoint_type_t;

/* Structure for returning performance information about the flipc
   domain; a placeholder for future entries as needed.
   This information will only be valid if the kernel is configured to
   keep flipc performance information.  */
typedef struct FLIPC_domain_performance_info {
    unsigned long performance_valid;	/* Non zero if the other information
				   in this structure is valid.  */
    unsigned long messages_sent;		/* Since last init.  */
    unsigned long messages_received;	/* Since last init.  Includes overruns
				   (because they are marked in the
				   endpoint data structure).  Doesn't
				   include other drops (they are
				   marked in other places) */
} *FLIPC_domain_performance_info_t;

/* Flipc yield function.  */
typedef void (*FLIPC_thread_yield_function)(void);

/* Structure for returning information about the flipc domain.  */
typedef struct FLIPC_domain_info {
    int max_endpoints;
    int max_epgroups;
    int max_buffers;
    int max_buffers_per_endpoint;
    int msg_buffer_size;
    FLIPC_thread_yield_function yield_fn;
    int policy;			/* Allocations lock sched policy.
				   Unused if REAL_TIME_PRIMITIVES are
				   not being used.  */
    struct FLIPC_domain_performance_info performance;
    int error_log_size;		/* In bytes.  */
} *FLIPC_domain_info_t;

/* Structure for returning information about the error state of
   the flipc domain.  Note that this is variable sized; the size
   of the transport specific information is not known at compile
   time.  */
typedef struct FLIPC_domain_errors {
    int error_full_config_p;		/* 1 if disabled and badtype below are
					   valid; 0 if only msgdrop_inactive
					   is valid.  */ 
    int msgdrop_inactive;		/* Messages dropped because
					   of the domain being locally
					   inactive.  */
    int msgdrop_disabled;		/* Messages dropped because of a
					   disabled endpoint.  */
    int msgdrop_badtype;		/* Messages dropped because they
					   were sent to a send endpoint.  */

    int transport_error_size;	/* Size of the following array of
				   ints, in bytes.  */
    int transport_error_info[1];	/* Really of transport_error_size.  */
} *FLIPC_domain_errors_t;

/* Structure for returning information about endpoints.  */
typedef struct FLIPC_endpoint_info {
    FLIPC_endpoint_type_t type;
    unsigned int processed_buffers_dropped_p;
    unsigned long number_buffers;
    FLIPC_epgroup_t epgroup;
} *FLIPC_endpoint_info_t;

typedef struct FLIPC_epgroup_info {
    unsigned long msgs_per_wakeup;
} *FLIPC_epgroup_info_t;

#endif /* _MACH_FLIPC_TYPES_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b	5	*
8ad349bb A	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@
1c79356b A	29	*/
	30	/*
	31	* @OSF_COPYRIGHT@
	32	*
	33	*/
	34	/*
	35	* HISTORY
	36	*
	37	* Revision 1.1.1.1 1998/09/22 21:05:30 wsanchez
	38	* Import of Mac OS X kernel (~semeria)
	39	*
	40	* Revision 1.1.1.1 1998/03/07 02:25:45 wsanchez
	41	* Import of OSF Mach kernel (~mburg)
	42	*
	43	* Revision 1.1.7.1 1996/09/17 16:34:35 bruel
	44	* fixed types.
	45	* [96/09/17 bruel]
	46	*
	47	* Revision 1.1.5.1 1995/06/13 18:20:20 sjs
	48	* Merged from flipc_shared.
	49	* [95/06/07 sjs]
	50	*
	51	* Revision 1.1.3.11 1995/05/23 19:55:36 randys
	52	* Don't keep track of messages sent to a bad destination--that's
	53	* purely a transport function now.
	54	* [95/05/23 randys]
	55	*
	56	* Revision 1.1.3.10 1995/05/23 15:40:20 randys
	57	* Added field to FLIPC_domain_errors to indicate validity of other
	58	* fields.
	59	* [95/05/22 randys]
	60	*
	61	* Revision 1.1.3.9 1995/05/16 20:46:35 randys
	62	* Added a "performance_valid" field to the flipc performance
	63	* structure.
	64	* [95/05/16 randys]
	65	*
	66	* Revision 1.1.3.8 1995/04/05 21:22:01 randys
	67	* Added field to domain_info struct to include allocations lock
	68	* sched policy.
	69	* [95/04/05 randys]
	70	*
	71	* Revision 1.1.3.7 1995/03/09 19:42:33 rwd
	72	* Define SEMAPHORE_NULL (for now) and include mach_types.h instead
	73	* of sema_types.h.
	74	* [95/03/08 rwd]
	75	*
	76	* Revision 1.1.3.6 1995/02/23 21:32:52 randys
	77	* Removed placeholder definition for locks--I don't believe that I
	78	* use locks unless I'm on top of a real time base, in which case
	79	* that base will define the type.
	80	* [95/02/22 randys]
	81	*
	82	* Revision 1.1.3.5 1995/02/21 17:23:13 randys
	83	* Re-indented code to four space indentation
	84	* [1995/02/21 16:25:36 randys]
	85	*
	86	* Revision 1.1.3.4 1995/02/16 23:20:14 randys
	87	* ANSIfy FLIPC_thread_yield_function.
	88	* [95/02/14 randys]
	89	*
	90	* Add FLIPC_thread_yield_function type.
	91	* [95/02/14 randys]
	92	*
93	* Revision 1.1.3.3 1995/01/26 21:01:51 randys
94	* Added performance structure.
95	* [1995/01/24 21:14:12 randys]
96	*
97	* Added FLIPC_epgroup_info struct
98	* [1995/01/24 18:30:02 randys]
99	*
100	* Create a new structure (FLIPC_endpoint_info) to return
101	* information about an endpoint.
102	* [1995/01/20 19:26:35 randys]
103	*
104	* Get rid of FLIPC_DESTINATION_NULL and add in
105	* FLIPC_ADDRESS_ERROR (return code from FLIPC_buffer_destination)
106	* [1995/01/19 20:23:24 randys]
107	*
108	* Added domain index type for specifying domain in
109	* init and attach calls
110	* [1995/01/18 16:47:25 randys]
111	*
112	* Revision 1.1.3.2 1994/12/20 19:02:09 randys
113	* Added error reporting structure type, and added
114	* room in the standard domain query for error log size.
115	* [1994/12/19 23:46:09 randys]
116	*
117	* Added filename in comment at top of each file
118	* [1994/12/19 20:28:26 randys]
119	*
120	* Support and doc for minor user interface changes for error conditions
121	* [1994/12/18 23:24:30 randys]
122	*
123	* Yank the semaphore type definitions back out, and include the file
124	* that defines those types.
125	* [1994/12/13 17:50:03 randys]
126	*
127	* Revision 1.1.3.1 1994/12/12 17:46:20 randys
128	* Put definitions of semaphore_t and SEMAPHORE_NULL back in; they aren't
129	* defined in user space yet.
130	* [1994/12/12 17:21:56 randys]
131	*
132	* Revision 1.1.1.2 1994/12/11 23:11:23 randys
133	* Initial flipc code checkin
134	*
135	* $EndLog$
136	*/
137
138	/*
139	* mach/flipc_types.h
140	*
141	* Definitions of those flipc types that need to be visible to both the AIL
142	* and kernel sides of flipc (which is just about everything).
143	*/
144
145	#ifndef _MACH_FLIPC_TYPES_H_
146	#define _MACH_FLIPC_TYPES_H_
147
148	#include <mach/port.h>
149
150	/*
151	* Define a couple of generally useful types.
152	*/
153	#include <mach/mach_types.h>
154
155	#ifndef MACH_KERNEL
156	#define SEMAPHORE_NULL (semaphore_port_t)0
157	#endif /* !defined(MACH_KERNEL) */
158
159	/*
160	* Basic flipc types; visible to both user and kernel segments of the
161	* flipc implementation.
162	*/
163	/* Flipc addresses. These name a node-endpoint combination for
164	sending. */
165	typedef unsigned int FLIPC_address_t;
166	#define FLIPC_ADDRESS_ERROR ((FLIPC_address_t) -1)
167
168	/* Flipc endpoints. */
169	typedef void *FLIPC_endpoint_t;
170	#define FLIPC_ENDPOINT_NULL ((FLIPC_endpoint_t) 0)
171
172	/* Buffer pointers (returned by query functions). Users are allowed to
173	copy directly to/from this pointer; it points at their data. */
174	typedef void *FLIPC_buffer_t;
175	#define FLIPC_BUFFER_NULL ((FLIPC_buffer_t) 0)
176
177	/* Endpoint group identifiers. */
178	typedef void *FLIPC_epgroup_t;
179	#define FLIPC_EPGROUP_NULL ((FLIPC_epgroup_t) 0)
180	#define FLIPC_EPGROUP_ERROR ((FLIPC_epgroup_t) -1)
181
182	/* Domain index; argument to initialization and attach routines. */
183	typedef unsigned int FLIPC_domain_index_t;
184
185	/* Domain handle (mach port). */
186	typedef mach_port_t FLIPC_domain_t;
187
188	/* The different types an endpoint can be. FLIPC_Inactive is used when
189	the endpoint has not been configured and hence is on the freelist. */
190	typedef enum {
191	FLIPC_Inactive = -1,
192	FLIPC_Send,
193	FLIPC_Receive
194	} FLIPC_endpoint_type_t;
195
196	/* Structure for returning performance information about the flipc
197	domain; a placeholder for future entries as needed.
198	This information will only be valid if the kernel is configured to
199	keep flipc performance information. */
200	typedef struct FLIPC_domain_performance_info {
201	unsigned long performance_valid; /* Non zero if the other information
202	in this structure is valid. */
203	unsigned long messages_sent; /* Since last init. */
204	unsigned long messages_received; /* Since last init. Includes overruns
205	(because they are marked in the
206	endpoint data structure). Doesn't
207	include other drops (they are
208	marked in other places) */
209	} *FLIPC_domain_performance_info_t;
210
211	/* Flipc yield function. */
212	typedef void (*FLIPC_thread_yield_function)(void);
213
214	/* Structure for returning information about the flipc domain. */
215	typedef struct FLIPC_domain_info {
216	int max_endpoints;
217	int max_epgroups;
218	int max_buffers;
219	int max_buffers_per_endpoint;
220	int msg_buffer_size;
221	FLIPC_thread_yield_function yield_fn;
222	int policy; /* Allocations lock sched policy.
223	Unused if REAL_TIME_PRIMITIVES are
224	not being used. */
225	struct FLIPC_domain_performance_info performance;
226	int error_log_size; /* In bytes. */
227	} *FLIPC_domain_info_t;
228
229	/* Structure for returning information about the error state of
230	the flipc domain. Note that this is variable sized; the size
231	of the transport specific information is not known at compile
232	time. */
233	typedef struct FLIPC_domain_errors {
234	int error_full_config_p; /* 1 if disabled and badtype below are
235	valid; 0 if only msgdrop_inactive
236	is valid. */
237	int msgdrop_inactive; /* Messages dropped because
238	of the domain being locally
239	inactive. */
240	int msgdrop_disabled; /* Messages dropped because of a
241	disabled endpoint. */
242	int msgdrop_badtype; /* Messages dropped because they
243	were sent to a send endpoint. */
244
245	int transport_error_size; /* Size of the following array of
246	ints, in bytes. */
247	int transport_error_info[1]; /* Really of transport_error_size. */
248	} *FLIPC_domain_errors_t;
249
250	/* Structure for returning information about endpoints. */
251	typedef struct FLIPC_endpoint_info {
252	FLIPC_endpoint_type_t type;
253	unsigned int processed_buffers_dropped_p;
254	unsigned long number_buffers;
255	FLIPC_epgroup_t epgroup;
256	} *FLIPC_endpoint_info_t;
257
258	typedef struct FLIPC_epgroup_info {
259	unsigned long msgs_per_wakeup;
260	} *FLIPC_epgroup_info_t;
261
262	#endif /* _MACH_FLIPC_TYPES_H_ */