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Annotation of OSKit-Mach/include/mach/thread_info.h, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989,1988,1987 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  [email protected]
                     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:  *     File:   mach/thread_info
                     28:  *
                     29:  *     Thread information structure and definitions.
                     30:  *
                     31:  *     The defintions in this file are exported to the user.  The kernel
                     32:  *     will translate its internal data structures to these structures
                     33:  *     as appropriate.
                     34:  *
                     35:  */
                     36: 
                     37: #ifndef        _MACH_THREAD_INFO_H_
                     38: #define _MACH_THREAD_INFO_H_
                     39: 
                     40: #include <mach/boolean.h>
                     41: #include <mach/policy.h>
                     42: #include <mach/time_value.h>
                     43: 
                     44: /*
                     45:  *     Generic information structure to allow for expansion.
                     46:  */
                     47: typedef        integer_t       *thread_info_t;         /* varying array of ints */
                     48: 
                     49: #define THREAD_INFO_MAX                (1024)  /* maximum array size */
                     50: typedef        integer_t       thread_info_data_t[THREAD_INFO_MAX];
                     51: 
                     52: /*
                     53:  *     Currently defined information.
                     54:  */
                     55: #define THREAD_BASIC_INFO      1               /* basic information */
                     56: 
                     57: struct thread_basic_info {
                     58:        time_value_t    user_time;      /* user run time */
                     59:        time_value_t    system_time;    /* system run time */
                     60:        integer_t       cpu_usage;      /* scaled cpu usage percentage */
                     61:        integer_t       base_priority;  /* base scheduling priority */
                     62:        integer_t       cur_priority;   /* current scheduling priority */
                     63:        integer_t       run_state;      /* run state (see below) */
                     64:        integer_t       flags;          /* various flags (see below) */
                     65:        integer_t       suspend_count;  /* suspend count for thread */
                     66:        integer_t       sleep_time;     /* number of seconds that thread
                     67:                                           has been sleeping */
                     68:        time_value_t    creation_time;  /* time stamp of creation */
                     69: };
                     70: 
                     71: typedef struct thread_basic_info       thread_basic_info_data_t;
                     72: typedef struct thread_basic_info       *thread_basic_info_t;
                     73: #define THREAD_BASIC_INFO_COUNT        \
                     74:                (sizeof(thread_basic_info_data_t) / sizeof(natural_t))
                     75: 
                     76: /*
                     77:  *     Scale factor for usage field.
                     78:  */
                     79: 
                     80: #define TH_USAGE_SCALE 1000
                     81: 
                     82: /*
                     83:  *     Thread run states (state field).
                     84:  */
                     85: 
                     86: #define TH_STATE_RUNNING       1       /* thread is running normally */
                     87: #define TH_STATE_STOPPED       2       /* thread is stopped */
                     88: #define TH_STATE_WAITING       3       /* thread is waiting normally */
                     89: #define TH_STATE_UNINTERRUPTIBLE 4     /* thread is in an uninterruptible
                     90:                                           wait */
                     91: #define TH_STATE_HALTED                5       /* thread is halted at a
                     92:                                           clean point */
                     93: 
                     94: /*
                     95:  *     Thread flags (flags field).
                     96:  */
                     97: #define TH_FLAGS_SWAPPED       0x1     /* thread is swapped out */
                     98: #define TH_FLAGS_IDLE          0x2     /* thread is an idle thread */
                     99: 
                    100: #define THREAD_SCHED_INFO      2
                    101: 
                    102: struct thread_sched_info {
                    103:        integer_t       policy;         /* scheduling policy */
                    104:        integer_t       data;           /* associated data */
                    105:        integer_t       base_priority;  /* base priority */
                    106:        integer_t       max_priority;   /* max priority */
                    107:        integer_t       cur_priority;   /* current priority */
                    108: /*boolean_t*/integer_t depressed;      /* depressed ? */
                    109:        integer_t       depress_priority; /* priority depressed from */
                    110: };
                    111: 
                    112: typedef struct thread_sched_info       thread_sched_info_data_t;
                    113: typedef struct thread_sched_info       *thread_sched_info_t;
                    114: #define        THREAD_SCHED_INFO_COUNT \
                    115:                (sizeof(thread_sched_info_data_t) / sizeof(natural_t))
                    116: 
                    117: #endif /* _MACH_THREAD_INFO_H_ */

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