xnu-6153.101.6.tar.gz

[apple/xnu.git] / osfmk / vm / vm_external.h

diff --git a/osfmk/vm/vm_external.h b/osfmk/vm/vm_external.h
index 27d4e759cf404b3a63294d7b6df81cb4d383df40..477822a7e0f22beb51e2c364729a385ce52b4ad1 100644 (file)
--- a/osfmk/vm/vm_external.h
+++ b/osfmk/vm/vm_external.h
@@ -1,147 +1,75 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
 /*
  * 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.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  *
  *

- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
+ * 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.

  *
  *

- * 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 
+ * 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.
  *
  * limitations under the License.
  *

- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*
  * @OSF_COPYRIGHT@
  */
  */
 /*
  * @OSF_COPYRIGHT@
  */

-/* 
+/*

  * Mach Operating System
  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
  * All Rights Reserved.
  * 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.
  * 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 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
  * 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
  *  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.
  */
 /*
  */
 
  * 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>
 #define VM_VM_EXTERNAL_H_
 
 #include <mach/boolean.h>

+#include <mach/vm_types.h>

 #include <mach/machine/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.
  */
 
 /*
  *     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_ */