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#include <u.h>
#include <kvm.h>
#include <nlist.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/dkstat.h>
#include <net/if.h>
#include <machine/apmvar.h>
#include <sys/ioctl.h>
#include <uvm/uvm_param.h>
#include <uvm/uvm_extern.h>
#include <limits.h>
#include <libc.h>
#include <bio.h>
#include "dat.h"
void xapm(int);
void xloadavg(int);
void xcpu(int);
void xswap(int);
void xsysctl(int);
void xnet(int);
void xkvm(int);
void (*statfn[])(int) =
{
xkvm,
xapm,
xloadavg,
xcpu,
xsysctl,
xnet,
0
};
static kvm_t *kvm;
static struct nlist nl[] = {
{ "_ifnet" },
{ "_cp_time" },
{ "" }
};
void
xloadavg(int first)
{
double l[3];
if(first)
return;
if(getloadavg(l, 3) < 0)
return;
Bprint(&bout, "load =%d 1000\n", (int)(l[0]*1000.0));
}
void
xapm(int first)
{
static int fd;
struct apm_power_info ai;
if(first){
fd = open("/dev/apm", OREAD);
return;
}
if(ioctl(fd, APM_IOC_GETPOWER, &ai) < 0)
return;
if(ai.battery_life <= 100)
Bprint(&bout, "battery =%d 100\n", ai.battery_life);
}
void
kvminit(void)
{
char buf[_POSIX2_LINE_MAX];
if(kvm)
return;
kvm = kvm_openfiles(nil, nil, nil, O_RDONLY, buf);
if(kvm == nil) {
fprint(2, "kvm open error\n%s", buf);
return;
}
if(kvm_nlist(kvm, nl) < 0 || nl[0].n_type == 0){
kvm = nil;
return;
}
}
void
xkvm(int first)
{
if(first)
kvminit();
}
int
kread(ulong addr, char *buf, int size)
{
if(kvm_read(kvm, addr, buf, size) != size){
memset(buf, 0, size);
return -1;
}
return size;
}
void
xnet(int first)
{
ulong out, in, outb, inb, err;
static ulong ifnetaddr;
ulong addr;
struct ifnet ifnet;
struct ifnet_head ifnethead;
char name[16];
if(first)
return;
if(ifnetaddr == 0){
ifnetaddr = nl[0].n_value;
if(ifnetaddr == 0)
return;
}
if(kread(ifnetaddr, (char*)&ifnethead, sizeof ifnethead) < 0)
return;
out = in = outb = inb = err = 0;
addr = (ulong)TAILQ_FIRST(&ifnethead);
while(addr){
if(kread(addr, (char*)&ifnet, sizeof ifnet) < 0
|| kread((ulong)ifnet.if_xname, name, 16) < 0)
return;
name[15] = 0;
addr = (ulong)TAILQ_NEXT(&ifnet, if_list);
out += ifnet.if_opackets;
in += ifnet.if_ipackets;
outb += ifnet.if_obytes;
inb += ifnet.if_ibytes;
err += ifnet.if_oerrors+ifnet.if_ierrors;
}
Bprint(&bout, "etherin %lud 1000\n", in);
Bprint(&bout, "etherout %lud 1000\n", out);
Bprint(&bout, "etherinb %lud 1000000\n", inb);
Bprint(&bout, "etheroutb %lud 1000000\n", outb);
Bprint(&bout, "ethererr %lud 1000\n", err);
Bprint(&bout, "ether %lud 1000\n", in+out);
Bprint(&bout, "etherb %lud 1000000\n", inb+outb);
}
void
xcpu(int first)
{
static int stathz;
ulong x[20];
struct clockinfo *ci;
int mib[2];
size_t l;
if(first){
mib[0] = CTL_KERN;
mib[1] = KERN_CLOCKRATE;
l = sizeof(x);
sysctl(mib, 2, (char *)&x, &l, nil, 0);
x[l] = 0;
if (l < sizeof(ci))
stathz = 128;
else{
ci = (struct clockinfo*)x;
stathz = ci->stathz;
}
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_CPTIME;
l = sizeof(x);
sysctl(mib, 2, (char *)&x, &l, nil, 0);
if (l < 5*sizeof(ulong))
return;
x[l] = 0;
Bprint(&bout, "user %lud %d\n", x[CP_USER]+x[CP_NICE], stathz);
Bprint(&bout, "sys %lud %d\n", x[CP_SYS], stathz);
Bprint(&bout, "cpu %lud %d\n", x[CP_USER]+x[CP_NICE]+x[CP_SYS], stathz);
Bprint(&bout, "idle %lud %d\n", x[CP_IDLE], stathz);
}
void
xsysctl(int first)
{
struct uvmexp vm;
static int pgsize;
int mib[2];
size_t l;
l = sizeof(vm);
mib[0] = CTL_VM;
mib[1] = VM_UVMEXP;
sysctl(mib, 2, &vm, &l, nil, 0);
if (l < sizeof(vm))
return;
if (first)
pgsize = vm.pagesize;
Bprint(&bout, "mem =%lud %lud\n", vm.active*pgsize, vm.npages*pgsize);
Bprint(&bout, "context %lud 1000\n", vm.swtch);
Bprint(&bout, "syscall %lud 1000\n", vm.syscalls);
Bprint(&bout, "intr %lud 1000\n", vm.intrs+vm.traps);
Bprint(&bout, "fault %lud 1000\n", vm.faults);
Bprint(&bout, "fork %ud 1000\n", vm.forks);
Bprint(&bout, "swap =%lud %lud\n", vm.swpginuse*pgsize, vm.swpages*pgsize);
}
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