The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/mach/policy.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        policy.h,v $
   29  * Revision 2.5  93/01/14  17:46:25  danner
   30  *      Cleanup.
   31  *      [92/06/10            pds]
   32  * 
   33  * Revision 2.4  91/05/14  16:58:29  mrt
   34  *      Correcting copyright
   35  * 
   36  * Revision 2.3  91/02/05  17:35:22  mrt
   37  *      Changed to new Mach copyright
   38  *      [91/02/01  17:20:11  mrt]
   39  * 
   40  * Revision 2.2  90/06/02  14:59:37  rpd
   41  *      Created for new host/processor technology.
   42  *      [90/03/26  23:51:22  rpd]
   43  * 
   44  *      Cleanup changes.
   45  *      [89/08/02            dlb]
   46  *      Created.
   47  *      [89/07/25  18:47:00  dlb]
   48  * 
   49  * Revision 2.3  89/10/15  02:05:50  rpd
   50  *      Minor cleanups.
   51  * 
   52  * Revision 2.2  89/10/11  14:40:53  dlb
   53  *      Cleanup changes.
   54  *      [89/08/02            dlb]
   55  * 
   56  */
   57 
   58 #ifndef _MACH_POLICY_H_
   59 #define _MACH_POLICY_H_
   60 
   61 /*
   62  *      mach/policy.h
   63  *
   64  *      Definitions for scheduing policy.
   65  */
   66 
   67 /*
   68  *      Policy definitions.  Policies must be powers of 2.
   69  */
   70 #define POLICY_TIMESHARE        1
   71 #define POLICY_FIXEDPRI         2
   72 #define POLICY_LAST             2
   73 
   74 #define invalid_policy(policy)  (((policy) <= 0) || ((policy) > POLICY_LAST))
   75 
   76 #endif /* _MACH_POLICY_H_ */

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