osfmk/mach/sync_policy.h

   1 /*
   2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28
  29 #ifndef _SYNC_POLICY_H_
  30 #define _SYNC_POLICY_H_
  31
  32 typedef int sync_policy_t;
  33
  34 /*
  35  *      These options define the wait ordering of the synchronizers
  36  */
  37 #define SYNC_POLICY_FIFO                0x0
  38 #define SYNC_POLICY_FIXED_PRIORITY      0x1
  39 #define SYNC_POLICY_REVERSED            0x2
  40 #define SYNC_POLICY_ORDER_MASK          0x3
  41 #define SYNC_POLICY_LIFO                (SYNC_POLICY_FIFO|SYNC_POLICY_REVERSED)
  42
  43 /*
  44  *      These options provide addition (kernel-private) behaviors
  45  */
  46 #ifdef  KERNEL_PRIVATE
  47 #include <sys/appleapiopts.h>
  48
  49 #ifdef  __APPLE_API_EVOLVING
  50
  51 #define SYNC_POLICY_PREPOST             0x4
  52
  53 #endif  /* __APPLE_API_EVOLVING */
  54
  55 #endif  /* KERNEL_PRIVATE */
  56
  57 #define SYNC_POLICY_MAX                 0x7
  58
  59 #endif  /*_SYNC_POLICY_H_*/