xnu-1504.15.3.tar.gz

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

diff --git a/osfmk/mach/sync_policy.h b/osfmk/mach/sync_policy.h
index 263770e0a2da271858deeb2f15f99bc031b9b9fa..50e0b214232ea4489632c16c774d11fc864eafca 100644 (file)
--- a/osfmk/mach/sync_policy.h
+++ b/osfmk/mach/sync_policy.h
@@ -1,36 +1,58 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
 
-#ifndef        _SYNC_POLICY_H_
-#define _SYNC_POLICY_H_
+#ifndef        _MACH_SYNC_POLICY_H_
+#define _MACH_SYNC_POLICY_H_
 
 typedef int sync_policy_t;
 
-#define SYNC_POLICY_FIFO               0
-#define SYNC_POLICY_FIXED_PRIORITY     1
-#define SYNC_POLICY_PREPOST            2
-#define SYNC_POLICY_MAX                        2
+/*
+ *     These options define the wait ordering of the synchronizers
+ */
+#define SYNC_POLICY_FIFO               0x0
+#define SYNC_POLICY_FIXED_PRIORITY     0x1
+#define SYNC_POLICY_REVERSED           0x2
+#define SYNC_POLICY_ORDER_MASK         0x3
+#define SYNC_POLICY_LIFO               (SYNC_POLICY_FIFO|SYNC_POLICY_REVERSED)
+
+#ifdef KERNEL_PRIVATE
+
+/*
+ *     These options provide addition (kernel-private) behaviors
+ */
+
+#define SYNC_POLICY_PREPOST            0x4
+
+#endif /* KERNEL_PRIVATE */
+
+#define SYNC_POLICY_MAX                        0x7
 
-#endif         /*_SYNC_POLICY_H_*/
+#endif         /* _MACH_SYNC_POLICY_H_ */