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Annotation of kernel/mach/thread_info.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* 
        !            26:  * Mach Operating System
        !            27:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !            28:  * All Rights Reserved.
        !            29:  * 
        !            30:  * Permission to use, copy, modify and distribute this software and its
        !            31:  * documentation is hereby granted, provided that both the copyright
        !            32:  * notice and this permission notice appear in all copies of the
        !            33:  * software, derivative works or modified versions, and any portions
        !            34:  * thereof, and that both notices appear in supporting documentation.
        !            35:  * 
        !            36:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            37:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            38:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            39:  * 
        !            40:  * Carnegie Mellon requests users of this software to return to
        !            41:  * 
        !            42:  *  Software Distribution Coordinator  or  [email protected]
        !            43:  *  School of Computer Science
        !            44:  *  Carnegie Mellon University
        !            45:  *  Pittsburgh PA 15213-3890
        !            46:  * 
        !            47:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            48:  * the rights to redistribute these changes.
        !            49:  */
        !            50: /*
        !            51:  *     File:   mach/thread_info
        !            52:  *
        !            53:  *     Thread information structure and definitions.
        !            54:  *
        !            55:  *     The defintions in this file are exported to the user.  The kernel
        !            56:  *     will translate its internal data structures to these structures
        !            57:  *     as appropriate.
        !            58:  *
        !            59:  */
        !            60: 
        !            61: #ifndef        _MACH_THREAD_INFO_H_
        !            62: #define _MACH_THREAD_INFO_H_
        !            63: 
        !            64: #import <mach/machine/vm_types.h>
        !            65: #import <mach/boolean.h>
        !            66: #import <mach/policy.h>
        !            67: #import <mach/time_value.h>
        !            68: 
        !            69: /*
        !            70:  *     Generic information structure to allow for expansion.
        !            71:  */
        !            72: typedef        integer_t       *thread_info_t;         /* varying array of ints */
        !            73: 
        !            74: #define THREAD_INFO_MAX                (1024)  /* maximum array size */
        !            75: typedef        integer_t       thread_info_data_t[THREAD_INFO_MAX];
        !            76: 
        !            77: /*
        !            78:  *     Currently defined information.
        !            79:  */
        !            80: #define THREAD_BASIC_INFO      1               /* basic information */
        !            81: 
        !            82: struct thread_basic_info {
        !            83:        time_value_t    user_time;      /* user run time */
        !            84:        time_value_t    system_time;    /* system run time */
        !            85:        integer_t       cpu_usage;      /* scaled cpu usage percentage */
        !            86:        integer_t       base_priority;  /* base scheduling priority */
        !            87:        integer_t       cur_priority;   /* current scheduling priority */
        !            88:        integer_t       run_state;      /* run state (see below) */
        !            89:        integer_t       flags;          /* various flags (see below) */
        !            90:        integer_t       suspend_count;  /* suspend count for thread */
        !            91:        integer_t       sleep_time;     /* number of seconds that thread
        !            92:                                           has been sleeping */
        !            93: };
        !            94: 
        !            95: typedef struct thread_basic_info       thread_basic_info_data_t;
        !            96: typedef struct thread_basic_info       *thread_basic_info_t;
        !            97: #define THREAD_BASIC_INFO_COUNT        \
        !            98:                (sizeof(thread_basic_info_data_t) / sizeof(natural_t))
        !            99: 
        !           100: /*
        !           101:  *     Scale factor for usage field.
        !           102:  */
        !           103: 
        !           104: #define TH_USAGE_SCALE 1000
        !           105: 
        !           106: /*
        !           107:  *     Thread run states (state field).
        !           108:  */
        !           109: 
        !           110: #define TH_STATE_RUNNING       1       /* thread is running normally */
        !           111: #define TH_STATE_STOPPED       2       /* thread is stopped */
        !           112: #define TH_STATE_WAITING       3       /* thread is waiting normally */
        !           113: #define TH_STATE_UNINTERRUPTIBLE 4     /* thread is in an uninterruptible
        !           114:                                           wait */
        !           115: #define TH_STATE_HALTED                5       /* thread is halted at a
        !           116:                                           clean point */
        !           117: 
        !           118: /*
        !           119:  *     Thread flags (flags field).
        !           120:  */
        !           121: #define TH_FLAGS_SWAPPED       0x1     /* thread is swapped out */
        !           122: #define TH_FLAGS_IDLE          0x2     /* thread is an idle thread */
        !           123: 
        !           124: #define THREAD_SCHED_INFO      2
        !           125: 
        !           126: struct thread_sched_info {
        !           127:        integer_t       policy;         /* scheduling policy */
        !           128:        integer_t       data;           /* associated data */
        !           129:        integer_t       base_priority;  /* base priority */
        !           130:        integer_t       max_priority;   /* max priority */
        !           131:        integer_t       cur_priority;   /* current priority */
        !           132: /*boolean_t*/integer_t depressed;      /* depressed ? */
        !           133:        integer_t       depress_priority; /* priority depressed from */
        !           134: };
        !           135: 
        !           136: typedef struct thread_sched_info       thread_sched_info_data_t;
        !           137: typedef struct thread_sched_info       *thread_sched_info_t;
        !           138: #define        THREAD_SCHED_INFO_COUNT \
        !           139:                (sizeof(thread_sched_info_data_t) / sizeof(natural_t))
        !           140: 
        !           141: #endif /* _MACH_THREAD_INFO_H_ */

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