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/*
* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
* Reserved. This file contains Original Code and/or Modifications of
* Original Code as defined in and that are subject to the Apple Public
* Source License Version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. Please obtain a copy of the
* License at http://www.apple.com/publicsource and read it before using
* this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License."
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* Mach Operating System
* Copyright (c) 1990 Carnegie-Mellon University
* All rights reserved. The CMU software License Agreement specifies
* the terms and conditions for use and redistribution.
*/
/*
* File: hostinfo.c
* Author: Avadis Tevanian, Jr.
*
* Copyright (C) 1987, Avadis Tevanian, Jr.
*
* Display information about the host this program is
* execting on.
*/
#include <mach/mach.h>
#include <mach/mach_error.h>
#include <sys/sysctl.h>
#include <sys/errno.h>
#include <stdio.h>
#include <stdlib.h>
struct host_basic_info hi;
kernel_version_t version;
int slots[1024];
int
main(int argc, char *argv[])
{
kern_return_t ret;
unsigned int size, count;
char *cpu_name, *cpu_subname;
int mib[2];
size_t len;
uint64_t memsize;
processor_set_name_port_t default_pset;
host_name_port_t host;
struct processor_set_basic_info basic_info;
struct processor_set_load_info load_info;
host = mach_host_self();
ret = host_kernel_version(host, version);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
printf("Mach kernel version:\n\t %s\n", version);
size = sizeof(hi)/sizeof(int);
ret = host_info(host, HOST_BASIC_INFO, (host_info_t)&hi, &size);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
ret = processor_set_default(host, &default_pset);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
count = PROCESSOR_SET_BASIC_INFO_COUNT;
ret = processor_set_info(default_pset, PROCESSOR_SET_BASIC_INFO,
&host, (processor_set_info_t)&basic_info, &count);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
count = PROCESSOR_SET_LOAD_INFO_COUNT;
ret = processor_set_statistics(default_pset, PROCESSOR_SET_LOAD_INFO,
(processor_set_info_t)&load_info, &count);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
unsigned int cpu_count = 0;
unsigned int data_count = 0;
struct processor_basic_info *processor_basic_infop = NULL;
ret = host_processor_info(host,
PROCESSOR_BASIC_INFO,
&cpu_count,
(processor_info_array_t *)&processor_basic_infop,
&data_count);
if (ret != KERN_SUCCESS) {
mach_error(argv[0], ret);
exit(EXIT_FAILURE);
}
mib[0] = CTL_HW;
mib[1] = HW_MEMSIZE;
len = sizeof(memsize);
memsize = 0L;
if(sysctl(mib, 2, &memsize, &len, NULL, 0 ) == -1)
{
perror("sysctl");
exit(EXIT_FAILURE);
}
if (hi.max_cpus > 1)
printf("Kernel configured for up to %d processors.\n",
hi.max_cpus);
else
printf("Kernel configured for a single processor only.\n");
printf("%d processor%s physically available.\n", hi.physical_cpu,
(hi.physical_cpu > 1) ? "s are" : " is");
printf("%d processor%s logically available.\n", hi.logical_cpu,
(hi.logical_cpu > 1) ? "s are" : " is");
printf("Processor type:");
slot_name(hi.cpu_type, hi.cpu_subtype, &cpu_name, &cpu_subname);
printf(" %s (%s)\n", cpu_name, cpu_subname);
printf("Processor%s active:", (hi.avail_cpus > 1) ? "s" : "");
for (int i = 0; i < cpu_count; i++) {
if (processor_basic_infop[i].running) {
printf(" %d", i);
}
}
printf("\n");
if (((float)memsize / (1024.0 * 1024.0)) >= 1024.0)
printf("Primary memory available: %.2f gigabytes\n",
(float)memsize/(1024.0*1024.0*1024.0));
else
printf("Primary memory available: %.2f megabytes\n",
(float)memsize/(1024.0*1024.0));
printf("Default processor set: %d tasks, %d threads, %d processors\n",
load_info.task_count, load_info.thread_count, basic_info.processor_count);
printf("Load average: %d.%02d, Mach factor: %d.%02d\n",
load_info.load_average/LOAD_SCALE,
(load_info.load_average%LOAD_SCALE)/10,
load_info.mach_factor/LOAD_SCALE,
(load_info.mach_factor%LOAD_SCALE)/10);
exit(0);
}
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