xnu-3247.10.11.tar.gz

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

diff --git a/osfmk/mach/vm_behavior.h b/osfmk/mach/vm_behavior.h
index 31431769bbf22662d7cc595c934b3d861bb26398..13a0b301f0c67d9e4f0296c4d25a336bc2bf4244 100644 (file)
--- a/osfmk/mach/vm_behavior.h
+++ b/osfmk/mach/vm_behavior.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @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
@@ -20,7 +23,7 @@
  * 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@
@@ -51,11 +54,26 @@ typedef int         vm_behavior_t;
  */
 
 
+/*
+ * The following behaviors affect the memory region's future behavior
+ * and are stored in the VM map entry data structure.
+ */
 #define VM_BEHAVIOR_DEFAULT    ((vm_behavior_t) 0)     /* default */
 #define VM_BEHAVIOR_RANDOM     ((vm_behavior_t) 1)     /* random */
 #define VM_BEHAVIOR_SEQUENTIAL ((vm_behavior_t) 2)     /* forward sequential */
 #define VM_BEHAVIOR_RSEQNTL    ((vm_behavior_t) 3)     /* reverse sequential */
+
+/*
+ * The following "behaviors" affect the memory region only at the time of the
+ * call and are not stored in the VM map entry.
+ */
 #define VM_BEHAVIOR_WILLNEED   ((vm_behavior_t) 4)     /* will need in near future */
 #define VM_BEHAVIOR_DONTNEED   ((vm_behavior_t) 5)     /* dont need in near future */
+#define VM_BEHAVIOR_FREE       ((vm_behavior_t) 6)     /* free memory without write-back */
+#define VM_BEHAVIOR_ZERO_WIRED_PAGES   ((vm_behavior_t) 7)     /* zero out the wired pages of an entry if it is being deleted without unwiring them first */
+#define VM_BEHAVIOR_REUSABLE   ((vm_behavior_t) 8)
+#define VM_BEHAVIOR_REUSE      ((vm_behavior_t) 9)
+#define VM_BEHAVIOR_CAN_REUSE  ((vm_behavior_t) 10)
+#define VM_BEHAVIOR_PAGEOUT    ((vm_behavior_t) 11)
 
 #endif /*_MACH_VM_BEHAVIOR_H_*/