/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
+ * 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,
* 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_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
/*
- * HISTORY
- *
- * Revision 1.1.1.1 1998/09/22 21:05:28 wsanchez
- * Import of Mac OS X kernel (~semeria)
- *
- * Revision 1.2 1998/05/29 23:50:33 youngwor
- * Added infrastructure for shared port space support
- *
- * Revision 1.1.1.1 1998/03/07 02:26:16 wsanchez
- * Import of OSF Mach kernel (~mburg)
- *
- * Revision 1.1.8.3 1995/01/06 19:46:05 devrcs
- * mk6 CR668 - 1.3b26 merge
- * 64bit cleanup
- * [1994/10/14 03:41:41 dwm]
- *
- * Revision 1.1.8.2 1994/09/23 02:12:26 ezf
- * change marker to not FREE
- * [1994/09/22 21:30:53 ezf]
- *
- * Revision 1.1.8.1 1994/08/18 23:11:45 widyono
- * RT IPC from RT2_SHARED
- * [1994/08/18 15:49:24 widyono]
- *
- * Revision 1.1.6.1 1994/07/29 07:33:22 widyono
- * Define default target size, ITS_SIZE_NONE
- * [1994/07/28 22:27:01 widyono]
- *
- * Revision 1.1.2.4 1993/07/22 16:17:33 rod
- * Add ANSI prototypes. CR #9523.
- * [1993/07/22 13:33:33 rod]
- *
- * Revision 1.1.2.3 1993/06/07 22:11:46 jeffc
- * CR9176 - ANSI C violations: trailing tokens on CPP
- * directives, extra semicolons after decl_ ..., asm keywords
- * [1993/06/07 19:02:58 jeffc]
- *
- * Revision 1.1.2.2 1993/06/02 23:34:02 jeffc
- * Added to OSF/1 R1.3 from NMK15.0.
- * [1993/06/02 21:11:17 jeffc]
- *
- * Revision 1.1 1992/09/30 02:29:14 robert
- * Initial revision
- *
- * $EndLog$
- */
-/* CMU_HIST */
-/*
- * Revision 2.5 91/05/14 16:37:52 mrt
- * Correcting copyright
- *
- * Revision 2.4 91/03/16 14:49:01 rpd
- * Added ipc_table_realloc.
- * [91/03/04 rpd]
- *
- * Revision 2.3 91/02/05 17:24:19 mrt
- * Changed to new Mach copyright
- * [91/02/01 15:52:19 mrt]
- *
- * Revision 2.2 90/06/02 14:52:02 rpd
- * Created for new IPC.
- * [90/03/26 21:04:35 rpd]
- *
- */
-/* CMU_ENDHIST */
-/*
* 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.
*/
* and dead-name requests (ipc_port_request_t).
*/
-#ifndef _IPC_IPC_TABLE_H_
-#define _IPC_IPC_TABLE_H_
+#ifndef _IPC_IPC_TABLE_H_
+#define _IPC_IPC_TABLE_H_
+#include <mach/mach_types.h>
#include <mach/boolean.h>
#include <mach/vm_param.h>
+#include <ipc/ipc_types.h>
+
/*
* The is_table_next field of an ipc_space_t points to
* an ipc_table_size structure. These structures must
* The ipr_size field points to the currently used ipc_table_size.
*/
-typedef natural_t ipc_table_index_t; /* index into tables */
-typedef natural_t ipc_table_elems_t; /* size of tables */
-
-typedef struct ipc_table_size {
- ipc_table_elems_t its_size; /* number of elements in table */
-} *ipc_table_size_t;
-
-#define ITS_NULL ((ipc_table_size_t) 0)
-#define ITS_SIZE_NONE -1
+struct ipc_table_size {
+ ipc_table_elems_t its_size; /* number of elements in table */
+};
extern ipc_table_size_t ipc_table_entries;
-extern ipc_table_size_t ipc_table_dnrequests;
+extern ipc_table_size_t ipc_table_requests;
/* Initialize IPC capabilities table storage */
extern void ipc_table_init(void);
/*
- * Note that ipc_table_alloc, ipc_table_realloc, and ipc_table_free
- * all potentially use the VM system. Hence simple locks can't
+ * Note that ipc_table_alloc and ipc_table_free
+ * potentially use the VM system. Hence simple locks can't
* be held across them.
- *
- * We can't use a copying realloc, because the realloc happens
- * with the data unlocked. ipc_table_realloc remaps the data,
- * so it is OK.
*/
/* Allocate a table */
-extern vm_offset_t ipc_table_alloc(
- vm_size_t size);
-
-/* Reallocate a big table */
-extern vm_offset_t ipc_table_realloc(
- vm_size_t old_size,
- vm_offset_t old_table,
- vm_size_t new_size);
+extern void * ipc_table_alloc(
+ vm_size_t size);
/* Free a table */
extern void ipc_table_free(
- vm_size_t size,
- vm_offset_t table);
-
-#define it_entries_reallocable(its) \
- ((its)->its_size * sizeof(struct ipc_entry) >= PAGE_SIZE)
-
-#define it_entries_alloc(its) \
- ((ipc_entry_t) \
- ipc_table_alloc(it_entries_reallocable(its) ? \
- round_page_32((its)->its_size * sizeof(struct ipc_entry)) : \
- (its)->its_size * sizeof(struct ipc_entry) \
- ))
-
-#define it_entries_realloc(its, table, nits) \
- ((ipc_entry_t) \
- ipc_table_realloc( \
- round_page_32((its)->its_size * sizeof(struct ipc_entry)), \
- (vm_offset_t)(table), \
- round_page_32((nits)->its_size * sizeof(struct ipc_entry)) \
- ))
-
-#define it_entries_free(its, table) \
- ipc_table_free(it_entries_reallocable(its) ? \
- round_page_32((its)->its_size * sizeof(struct ipc_entry)) : \
- (its)->its_size * sizeof(struct ipc_entry), \
- (vm_offset_t)(table) \
- )
-
-#define it_dnrequests_alloc(its) \
- ((ipc_port_request_t) \
- ipc_table_alloc((its)->its_size * \
- sizeof(struct ipc_port_request)))
-
-#define it_dnrequests_free(its, table) \
- ipc_table_free((its)->its_size * \
- sizeof(struct ipc_port_request), \
- (vm_offset_t)(table))
-
-#endif /* _IPC_IPC_TABLE_H_ */
+ vm_size_t size,
+ void * table);
+
+#define it_entries_alloc(its) \
+ ((ipc_entry_t) \
+ ipc_table_alloc((its)->its_size * sizeof(struct ipc_entry)))
+
+#define it_entries_free(its, table) \
+ ipc_table_free((its)->its_size * sizeof(struct ipc_entry), \
+ (void *)(table))
+
+
+#define it_requests_alloc(its) \
+ ((ipc_port_request_t) \
+ ipc_table_alloc((its)->its_size * \
+ sizeof(struct ipc_port_request)))
+
+#define it_requests_free(its, table) \
+ ipc_table_free((its)->its_size * \
+ sizeof(struct ipc_port_request), \
+ (void *)(table))
+
+extern unsigned int ipc_table_max_entries(void);
+extern unsigned int ipc_table_max_requests(void);
+
+#endif /* _IPC_IPC_TABLE_H_ */
projects / apple / xnu.git / blobdiff