$NetBSD: patch-ac,v 1.1.1.1 2002/03/24 18:04:57 wiz Exp $

--- src/cpu_netbsd.c.orig	Sun Mar 24 18:18:37 2002
+++ src/cpu_netbsd.c
@@ -0,0 +1,62 @@
+/*
+ * cpu_netbsd - module to get cpu usage, for NetBSD
+ *
+ * Copyright (C) 2001, 2002 Seiichi SATO <ssato@sh.rim.or.jp>
+ *
+ * Licensed under the GPL
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include "cpu.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/sched.h>
+
+void cpu_init(void)
+{
+    /* You don't need initialization under NetBSD */
+    return;
+}
+
+/* Returns the current CPU usage in percent */
+int cpu_get_usage(struct cpu_options *opts)
+{
+    int total, used, result;
+    static int pre_total, pre_used;
+
+    int mib[] = { CTL_KERN, KERN_CP_TIME };
+    u_int64_t cpu_time[CPUSTATES];
+    size_t size = sizeof(cpu_time);
+
+    /* get cpu time*/
+    if (sysctl(mib, 2, &cpu_time, &size, NULL, 0) < 0)
+	return 0;
+
+    /* calc usage */
+    used = cpu_time[CP_USER] + cpu_time[CP_SYS];
+    if (!opts->ignore_nice)
+	used += cpu_time[CP_NICE];
+    total = used + cpu_time[CP_IDLE];
+
+    if (pre_total == 0)
+	result = 0;
+    else if ((total - pre_total) > 0)
+	result = 100 * (double)(used - pre_used) / (double)(total - pre_total);
+    else
+	result = 0;
+
+    /* save used/total for next calculation */
+    pre_used = used;
+    pre_total = total;
+
+    return result;
+}