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/* BubbleMon dockapp 1.2 - OpenBSD specific code
* Copyright (C) 2001, Peter Stromberg <wilfried@openbsd.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <sys/dkstat.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/resource.h>
#include <uvm/uvm_object.h>
#include <uvm/uvm_extern.h>
#include <sys/swap.h>
#include "include/bubblemon.h"
#include "include/sys_include.h"
extern BubbleMonData bm;
/* Returns the current CPU load in percent */
int system_cpu(void)
{
int loadPercentage;
int previous_total, previous_load;
int total, load;
long cpu_time[CPUSTATES];
int i;
int mib[2];
size_t size;
mib[0] = CTL_KERN;
mib[1] = KERN_CPTIME;
size = sizeof (cpu_time);
if (sysctl(mib, 2, &cpu_time, &size, NULL, 0) < 0)
return 0;
load = cpu_time[CP_USER] + cpu_time[CP_SYS] + cpu_time[CP_NICE];
total = load + cpu_time[CP_IDLE];
i = bm.loadIndex;
previous_load = bm.load[i];
previous_total = bm.total[i];
bm.load[i] = load;
bm.total[i] = total;
bm.loadIndex = (i + 1) % bm.samples;
if (previous_total == 0)
loadPercentage = 0; /* first time here */
else if (total == previous_total)
loadPercentage = 100;
else
loadPercentage = (100 * (load - previous_load)) / (total - previous_total);
return loadPercentage;
}
int system_memory(void)
{
#define pagetob(size) ((size) << (uvmexp.pageshift))
struct uvmexp uvmexp;
int nswap, rnswap, i;
int mib[] = { CTL_VM, VM_UVMEXP };
size_t size = sizeof (uvmexp);
if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0)
return 0;
bm.mem_used = pagetob(uvmexp.active);
bm.mem_max = pagetob(uvmexp.npages);
bm.swap_used = 0;
bm.swap_max = 0;
if ((nswap = swapctl(SWAP_NSWAP, 0, 0)) != 0) {
struct swapent *swdev = malloc(nswap * sizeof(*swdev));
if((rnswap = swapctl(SWAP_STATS, swdev, nswap)) != nswap) {
for (i = 0; i < nswap; i++) {
if (swdev[i].se_flags & SWF_ENABLE) {
bm.swap_used += (swdev[i].se_inuse / (1024 / DEV_BSIZE));
bm.swap_max += (swdev[i].se_nblks / (1024 / DEV_BSIZE));
}
}
}
free(swdev);
}
return 1;
}
#ifdef ENABLE_MEMSCREEN
void system_loadavg(void)
{
static int avg_delay;
if (avg_delay-- <= 0) {
struct loadavg loadinfo;
int i;
int mib[] = { CTL_VM, VM_LOADAVG };
size_t size = sizeof (loadinfo);
if (sysctl(mib, 2, &loadinfo, &size, NULL, 0) >= 0)
for (i = 0; i < 3; i++) {
bm.loadavg[i].i = loadinfo.ldavg[i] / loadinfo.fscale;
bm.loadavg[i].f = ((loadinfo.ldavg[i] * 100 +
loadinfo.fscale / 2) / loadinfo.fscale) % 100;
}
avg_delay = ROLLVALUE;
}
}
#endif /* ENABLE_MEMSCREEN */
/* ex:set sw=4 ts=4: */
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