xnu-6153.81.5.tar.gz

[apple/xnu.git] / bsd / sys / kernel.h

diff --git a/bsd/sys/kernel.h b/bsd/sys/kernel.h
index 35555f8421604219dee5649269349043c83b2041..b6ce1fc87358c8550fc89e1221524124fe6d52ba 100644 (file)
--- a/bsd/sys/kernel.h
+++ b/bsd/sys/kernel.h
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple 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,
@@ -22,7 +22,7 @@
  * 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@
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
@@ -65,43 +65,44 @@
  *
  *     @(#)kernel.h    8.3 (Berkeley) 1/21/94
  */
-#ifndef        _SYS_KERNEL_H_
+#ifndef _SYS_KERNEL_H_
 #define _SYS_KERNEL_H_
 
 #include <sys/appleapiopts.h>
 
-#ifdef KERNEL
+#ifdef  KERNEL
 
 #include <sys/param.h>
 
 #ifdef BSD_KERNEL_PRIVATE
 #include <stdbool.h>
+#include <kern/locks.h>
 
 /* Global variables for the kernel. */
 
 /* 1.1 */
 extern long hostid;
 extern char hostname[MAXHOSTNAMELEN];
-extern int hostnamelen;
+extern lck_mtx_t hostname_lock;
 extern char domainname[MAXHOSTNAMELEN];
-extern int domainnamelen;
+extern lck_mtx_t domainname_lock;
 
 /* 1.2 */
-extern int stathz;             /* statistics clock's frequency */
-extern int profhz;             /* profiling clock's frequency */
+extern int stathz;              /* statistics clock's frequency */
+extern int profhz;              /* profiling clock's frequency */
 
 extern bool send_sigsys;
 #endif /* BSD_KERNEL_PRIVATE */
 
 
 #ifdef KERNEL_PRIVATE
-extern struct timezone tz;                     /* XXX */
+extern struct timezone tz;                      /* XXX */
 
-extern int tick;               /* usec per tick (1000000 / hz) */
-extern int hz;                 /* system clock's frequency */
+extern int tick;                /* usec per tick (1000000 / hz) */
+extern int hz;                  /* system clock's frequency */
 
 #endif /* KERNEL_PRIVATE */
 
-#endif /* KERNEL */
+#endif  /* KERNEL */
 
-#endif /* !_SYS_KERNEL_H_ */
+#endif  /* !_SYS_KERNEL_H_ */