xnu-792.12.6.tar.gz

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

diff --git a/osfmk/ipc/port.h b/osfmk/ipc/port.h
index 544f5bc9012bb154ac56d8c33c545f9cb5cf5718..15370350232cec07dd20c4e0974e416571c02a23 100644 (file)
--- a/osfmk/ipc/port.h
+++ b/osfmk/ipc/port.h
@@ -1,26 +1,31 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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
+ * 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.
+ *
+ * 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
+ *
+ * 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -72,9 +77,6 @@
  *     the same (unsigned) type as mach_port_name_t.
  */
 
-typedef mach_port_name_t mach_port_index_t;            /* index values */
-typedef mach_port_name_t mach_port_gen_t;              /* generation numbers */
-
 
 #define        MACH_PORT_UREFS_MAX     ((mach_port_urefs_t) ((1 << 16) - 1))
 
@@ -84,6 +86,6 @@ typedef mach_port_name_t mach_port_gen_t;             /* generation numbers */
                  (((urefs) + (delta)) > MACH_PORT_UREFS_MAX)))
 
 #define        MACH_PORT_UREFS_UNDERFLOW(urefs, delta)                         \
-               (((delta) < 0) && (-(delta) > (urefs)))
+               (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs)))
 
 #endif /* _IPC_PORT_H_ */