hostinfo.tproj/hostinfo.c

   1 /*
   2  * Copyright (c) 1999 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  * Mach Operating System
  27  * Copyright (c) 1990 Carnegie-Mellon University
  28  * All rights reserved.  The CMU software License Agreement specifies
  29  * the terms and conditions for use and redistribution.
  30  */
  31 /*
  32  *      File:   hostinfo.c
  33  *      Author: Avadis Tevanian, Jr.
  34  *
  35  *      Copyright (C) 1987, Avadis Tevanian, Jr.
  36  *
  37  *      Display information about the host this program is
  38  *      execting on.
  39  */
  40
  41 #include <mach/mach.h>
  42 #include <mach/mach_error.h>
  43 #include <mach/bootstrap.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46
  47 struct host_basic_info  hi;
  48 kernel_version_t        version;
  49 int                     slots[1024];
  50
  51 int main(int argc, char *argv[])
  52 {
  53         kern_return_t           ret;
  54         int                     size;
  55         char                    *cpu_name, *cpu_subname;
  56         int                     i, count;
  57         processor_set_name_port_t               default_pset;
  58         host_name_port_t                        host;
  59         struct processor_set_basic_info basic_info;
  60         struct processor_set_load_info  load_info;
  61
  62         host = mach_host_self();
  63         ret = host_kernel_version(host, version);
  64         if (ret != KERN_SUCCESS) {
  65                 mach_error(argv[0], ret);
  66                 exit(EXIT_FAILURE);
  67         }
  68         printf("Mach kernel version:\n\t %s\n", version);
  69         size = sizeof(hi)/sizeof(int);
  70         ret = host_info(host, HOST_BASIC_INFO, (host_info_t)&hi, &size);
  71         if (ret != KERN_SUCCESS) {
  72                 mach_error(argv[0], ret);
  73                 exit(EXIT_FAILURE);
  74         }
  75
  76         ret = processor_set_default(host, &default_pset);
  77         if (ret != KERN_SUCCESS) {
  78                 mach_error(argv[0], ret);
  79                 exit(EXIT_FAILURE);
  80         }
  81
  82         count = PROCESSOR_SET_BASIC_INFO_COUNT;
  83         ret = processor_set_info(default_pset, PROCESSOR_SET_BASIC_INFO,
  84                 &host, (processor_set_info_t)&basic_info, &count);
  85         if (ret != KERN_SUCCESS) {
  86                 mach_error(argv[0], ret);
  87                 exit(EXIT_FAILURE);
  88         }
  89
  90         count = PROCESSOR_SET_LOAD_INFO_COUNT;
  91         ret = processor_set_statistics(default_pset, PROCESSOR_SET_LOAD_INFO,
  92                 (processor_set_info_t)&load_info, &count);
  93         if (ret != KERN_SUCCESS) {
  94                 mach_error(argv[0], ret);
  95                 exit(EXIT_FAILURE);
  96         }
  97         if (hi.max_cpus > 1)
  98                 printf("Kernel configured for up to %d processors.\n",
  99                         hi.max_cpus);
 100         else
 101                 printf("Kernel configured for a single processor only.\n");
 102         printf("%d processor%s physically available.\n", hi.avail_cpus,
 103                 (hi.avail_cpus > 1) ? "s are" : " is");
 104
 105         printf("Processor type:");
 106         slot_name(hi.cpu_type, hi.cpu_subtype, &cpu_name, &cpu_subname);
 107         printf(" %s (%s)\n", cpu_name, cpu_subname);
 108
 109         printf("Processor%s active:", (hi.avail_cpus > 1) ? "s" : "");
 110         for (i = 0; i < hi.avail_cpus; i++)
 111                 printf(" %d", i);
 112         printf("\n");
 113
 114         printf("Primary memory available: %.2f megabytes.\n",
 115                         (float)hi.memory_size/(1024.0*1024.0));
 116         printf("Default processor set: %d tasks, %d threads, %d processors\n",
 117                 load_info.task_count, load_info.thread_count, basic_info.processor_count);
 118         printf("Load average: %d.%02d, Mach factor: %d.%02d\n",
 119                 load_info.load_average/LOAD_SCALE,
 120                 (load_info.load_average%LOAD_SCALE)/10,
 121                 load_info.mach_factor/LOAD_SCALE,
 122                 (load_info.mach_factor%LOAD_SCALE)/10);
 123 }
 124