xnu-6153.61.1.tar.gz

[apple/xnu.git] / osfmk / ipc / port.h

diff --git a/osfmk/ipc/port.h b/osfmk/ipc/port.h
index 6e0b8e2d17a67ca5d115ef85db4d512bcec095b9..5b24a9885f2cd9f38c1517f6b98f56ee9bdeb8f2 100644 (file)
--- a/osfmk/ipc/port.h
+++ b/osfmk/ipc/port.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2000-2004 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
@@ -11,10 +11,10 @@
  * 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,
@@ -22,34 +22,34 @@
  * 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_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.
  */
@@ -63,12 +63,12 @@
  *     Implementation specific complement to mach/port.h.
  */
 
-#ifndef        _IPC_PORT_H_
+#ifndef _IPC_PORT_H_
 #define _IPC_PORT_H_
 
 #include <mach/port.h>
 
-#define        MACH_PORT_NGEN(name)            MACH_PORT_MAKE(0, MACH_PORT_GEN(name))
+#define MACH_PORT_NGEN(name)            MACH_PORT_MAKE(0, MACH_PORT_GEN(name))
 
 /*
  *     Typedefs for code cleanliness.  These must all have
@@ -76,14 +76,22 @@
  */
 
 
-#define        MACH_PORT_UREFS_MAX     ((mach_port_urefs_t) ((1 << 16) - 1))
+#define MACH_PORT_UREFS_MAX     ((mach_port_urefs_t) ((1 << 16) - 1))
+
+#define MACH_PORT_UREFS_OVERFLOW(urefs, delta)                          \
+               (((delta) > 0) &&                                       \
+                ((((urefs) + (delta)) <= (urefs)) ||                   \
+                 (((urefs) + (delta)) >= MACH_PORT_UREFS_MAX)))
 
-#define        MACH_PORT_UREFS_OVERFLOW(urefs, delta)                          \
-               (((delta) > 0) &&                                       \
-                ((((urefs) + (delta)) <= (urefs)) ||                   \
-                 (((urefs) + (delta)) > MACH_PORT_UREFS_MAX)))
+#define MACH_PORT_UREFS_UNDERFLOW(urefs, delta)                         \
+               (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs)))
 
-#define        MACH_PORT_UREFS_UNDERFLOW(urefs, delta)                         \
-               (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs)))
+__BEGIN_DECLS
+extern void mach_port_guard_exception(
+       mach_port_name_t      name,
+       uint64_t      inguard,
+       uint64_t      portguard,
+       unsigned      reason);
+__END_DECLS
 
-#endif /* _IPC_PORT_H_ */
+#endif  /* _IPC_PORT_H_ */