/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
+ * @APPLE_OSREFERENCE_LICENSE_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. 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@
*/
-/*
+/*
* 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.
*/
/*
*/
-#ifndef VM_VM_EXTERNAL_H_
+#ifndef VM_VM_EXTERNAL_H_
#define VM_VM_EXTERNAL_H_
#include <mach/boolean.h>
+#include <mach/vm_types.h>
#include <mach/machine/vm_types.h>
-/*
- * External page management hint technology
- *
- * The data structure exported by this module maintains
- * a (potentially incomplete) map of the pages written
- * to external storage for a range of virtual memory.
- */
-
-typedef char *vm_external_map_t;
-#define VM_EXTERNAL_NULL ((char *) 0)
-
/*
* The states that may be recorded for a page of external storage.
*/
-typedef int vm_external_state_t;
-#define VM_EXTERNAL_STATE_EXISTS 1
-#define VM_EXTERNAL_STATE_UNKNOWN 2
-#define VM_EXTERNAL_STATE_ABSENT 3
-
-/*
- * Useful macros
- */
-#define stob(s) ((atop_32((s)) + 07) >> 3)
-
-/*
- * Routines exported by this module.
- */
- /* Initialize the module */
-extern void vm_external_module_initialize(void);
-
-
-extern vm_external_map_t vm_external_create(
- /* Create a vm_external_map_t */
- vm_offset_t size);
-
-extern void vm_external_destroy(
- /* Destroy one */
- vm_external_map_t map,
- vm_size_t size);
-
-extern vm_size_t vm_external_map_size(
- /* Return size of map in bytes */
- vm_offset_t size);
-
-extern void vm_external_copy(
- /* Copy one into another */
- vm_external_map_t old_map,
- vm_size_t old_size,
- vm_external_map_t new_map);
-
-extern void vm_external_state_set(
- /* Set state of a page to
- * VM_EXTERNAL_STATE_EXISTS */
- vm_external_map_t map,
- vm_offset_t offset);
-
-extern void vm_external_state_clr(
- /* clear page state
- */
- vm_external_map_t map,
- vm_offset_t offset);
-
-#define vm_external_state_get(map, offset) \
- (((map) != VM_EXTERNAL_NULL) ? \
- _vm_external_state_get((map), (offset)) : \
- VM_EXTERNAL_STATE_UNKNOWN)
- /* Retrieve the state for a
- * given page, if known. */
-
-extern vm_external_state_t _vm_external_state_get(
- /* HIDDEN routine */
- vm_external_map_t map,
- vm_offset_t offset);
+typedef int vm_external_state_t;
+#define VM_EXTERNAL_STATE_EXISTS 1
+#define VM_EXTERNAL_STATE_UNKNOWN 2
+#define VM_EXTERNAL_STATE_ABSENT 3
-boolean_t vm_external_within(
- /* Check if new object size
- * fits in current map */
- vm_size_t new_size,
- vm_size_t old_size);
-#endif /* VM_VM_EXTERNAL_H_ */
+#endif /* VM_VM_EXTERNAL_H_ */
projects / apple / xnu.git / blobdiff