84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
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/* $Id: cpu_irix.c,v 1.1.1.1 2002-10-14 09:31:17 sch Exp $ */
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/*
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* cpu_irix.c - module to get cpu usage, for IRIX 6.5 and IRIX64 6.5
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*
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* Copyright (C) 2002 Jonathan C. Patschke <jp@celestrion.net>
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* Copyright (C) 2002 Seiichi SATO <ssato@sh.rim.or.jp>
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*
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* licensed under the GPL
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include "cpu.h"
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#include <sys/types.h>
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#include <sys/sysmp.h>
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#include <sys/sysinfo.h>
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#include <sys/sysget.h>
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int cpuCount;
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void
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cpu_init(void)
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{
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cpuCount = (int)sysmp(MP_NPROCS);
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return;
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}
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/* returns current CPU usage in percent */
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int
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cpu_get_usage(cpu_options *opts)
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{
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struct sgt_cookie cookie;
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struct sysinfo info;
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long cpuload, cputotal;
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static long ocpuload, ocputotal;
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int result, i;
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if (opts->cpu_number >= cpuCount) return 0;
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SGT_COOKIE_INIT(&cookie);
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if (opts->cpu_number < 1) {
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/* Get stats for all CPUs */
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cpuload = 0;
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cputotal = 0;
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for (i = 0 ; i < cpuCount ; i++) {
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SGT_COOKIE_SET_CPU(&cookie, i);
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memset(((void *)&info), 0x00, sizeof(info));
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sysget(SGT_SINFO_CPU, ((char *)&info), sizeof(info),
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SGT_READ, &cookie);
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cpuload += info.cpu[CPU_USER] + info.cpu[CPU_KERNEL] +
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info.cpu[CPU_WAIT] + info.cpu[CPU_SXBRK] +
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info.cpu[CPU_INTR];
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cputotal += cpuload + info.cpu[CPU_IDLE];
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};
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} else {
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SGT_COOKIE_SET_CPU(&cookie, opts->cpu_number);
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memset(((void *)&info), 0x00, sizeof(info));
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sysget(SGT_SINFO_CPU, ((char *)&info), sizeof(info),
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SGT_READ, &cookie);
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cpuload = info.cpu[CPU_USER] + info.cpu[CPU_KERNEL] +
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info.cpu[CPU_WAIT] + info.cpu[CPU_SXBRK] +
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info.cpu[CPU_INTR];
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cputotal = cpuload + info.cpu[CPU_IDLE];
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}
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#ifdef DEBUG
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fprintf(stderr, "!!!%d/%d: %d, %d, %d, %d, %d, %d\n", opts->cpu_number,
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cpuCount, info.cpu[CPU_USER], info.cpu[CPU_KERNEL], info.cpu[CPU_WAIT],
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info.cpu[CPU_SXBRK], info.cpu[CPU_INTR], info.cpu[CPU_IDLE]);
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#endif
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result = ((cpuload - ocpuload) * 100) / (cputotal - ocputotal);
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ocpuload = cpuload;
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ocputotal = cputotal;
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return result;
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}
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