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

     /* 
      * Mach Operating System
      * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * HISTORY
     * $Log:        thread_info.h,v $
     * Revision 2.5  93/01/14  17:47:57  danner
     *      Cleanup.
     *      [92/06/10            pds]
     *      64bit cleanup.
     *      [92/12/01            af]
     * 
     * Revision 2.4  91/05/14  17:01:06  mrt
     *      Correcting copyright
     * 
     * Revision 2.3  91/02/05  17:36:34  mrt
     *      Changed to new Mach copyright
     *      [91/02/01  17:21:39  mrt]
     * 
     * Revision 2.2  90/06/02  15:00:08  rpd
     *      Updated for new scheduling info.
     *      [90/03/26  22:40:55  rpd]
     * 
     * Revision 2.1  89/08/03  16:06:07  rwd
     * Created.
     * 
     * Revision 2.4  89/02/25  18:41:18  gm0w
     *      Changes for cleanup.
     * 
     *  4-Mar-88  David Black (dlb) at Carnegie-Mellon University
     *      Added TH_USAGE_SCALE for cpu_usage field.
     *
     * 15-Jan-88  David Golub (dbg) at Carnegie-Mellon University
     *      Changed to generic interface (variable-length array) to allow
     *      for expansion.  Renamed to thread_info.
     *
     *  1-Jun-87  Avadis Tevanian (avie) at Carnegie-Mellon University
     *      Created.
     *
     */
    /*
     *      File:   mach/thread_info
     *
     *      Thread information structure and definitions.
     *
     *      The defintions in this file are exported to the user.  The kernel
     *      will translate its internal data structures to these structures
     *      as appropriate.
     *
     */
    
    #ifndef _MACH_THREAD_INFO_H_
    #define _MACH_THREAD_INFO_H_
    
    #include <mach/boolean.h>
    #include <mach/policy.h>
    #include <mach/time_value.h>
    
    /*
     *      Generic information structure to allow for expansion.
     */
    typedef integer_t       *thread_info_t;         /* varying array of ints */
    
    #define THREAD_INFO_MAX         (1024)  /* maximum array size */
    typedef integer_t       thread_info_data_t[THREAD_INFO_MAX];
    
    /*
     *      Currently defined information.
     */
    #define THREAD_BASIC_INFO       1               /* basic information */
    
    struct thread_basic_info {
            time_value_t    user_time;      /* user run time */
            time_value_t    system_time;    /* system run time */
            integer_t       cpu_usage;      /* scaled cpu usage percentage */
            integer_t       base_priority;  /* base scheduling priority */
            integer_t       cur_priority;   /* current scheduling priority */
           integer_t       run_state;      /* run state (see below) */
           integer_t       flags;          /* various flags (see below) */
           integer_t       suspend_count;  /* suspend count for thread */
           integer_t       sleep_time;     /* number of seconds that thread
                                              has been sleeping */
   };
   
   typedef struct thread_basic_info        thread_basic_info_data_t;
   typedef struct thread_basic_info        *thread_basic_info_t;
   #define THREAD_BASIC_INFO_COUNT \
                   (sizeof(thread_basic_info_data_t) / sizeof(natural_t))
   
   /*
    *      Scale factor for usage field.
    */
   
   #define TH_USAGE_SCALE  1000
   
   /*
    *      Thread run states (state field).
    */
   
   #define TH_STATE_RUNNING        1       /* thread is running normally */
   #define TH_STATE_STOPPED        2       /* thread is stopped */
   #define TH_STATE_WAITING        3       /* thread is waiting normally */
   #define TH_STATE_UNINTERRUPTIBLE 4      /* thread is in an uninterruptible
                                              wait */
   #define TH_STATE_HALTED         5       /* thread is halted at a
                                              clean point */
   
   /*
    *      Thread flags (flags field).
    */
   #define TH_FLAGS_SWAPPED        0x1     /* thread is swapped out */
   #define TH_FLAGS_IDLE           0x2     /* thread is an idle thread */
   
   #define THREAD_SCHED_INFO       2
   
   struct thread_sched_info {
           integer_t       policy;         /* scheduling policy */
           integer_t       data;           /* associated data */
           integer_t       base_priority;  /* base priority */
           integer_t       max_priority;   /* max priority */
           integer_t       cur_priority;   /* current priority */
   /*boolean_t*/integer_t  depressed;      /* depressed ? */
           integer_t       depress_priority; /* priority depressed from */
   };
   
   typedef struct thread_sched_info        thread_sched_info_data_t;
   typedef struct thread_sched_info        *thread_sched_info_t;
   #define THREAD_SCHED_INFO_COUNT \
                   (sizeof(thread_sched_info_data_t) / sizeof(natural_t))
   
   #endif  /* _MACH_THREAD_INFO_H_ */

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