#include <u.h>
#include <libc.h>
#include <ctype.h>
#include <auth.h>
#include <fcall.h>
#include <draw.h>
#include <event.h>
#define MAXNUM 10 /* maximum number of numbers on data line */
typedef struct Graph Graph;
typedef struct Machine Machine;
struct Graph
{
int colindex;
Rectangle r;
int *data;
int ndata;
char *label;
void (*newvalue)(Machine*, ulong*, ulong*, int);
void (*update)(Graph*, ulong, ulong);
Machine *mach;
int overflow;
Image *overtmp;
};
enum
{
/* old /dev/swap */
Mem = 0,
Maxmem,
Swap,
Maxswap,
/* /dev/sysstats */
Procno = 0,
Context,
Interrupt,
Syscall,
Fault,
TLBfault,
TLBpurge,
Load,
Idle,
InIntr,
/* /net/ether0/stats */
In = 0,
Link,
Out,
Err0,
};
struct Machine
{
char *name;
int remote;
int statsfd;
int swapfd;
int etherfd;
int ifstatsfd;
int batteryfd;
int bitsybatfd;
int disable;
ulong devswap[4];
ulong devsysstat[10];
ulong prevsysstat[10];
int nproc;
ulong netetherstats[8];
ulong prevetherstats[8];
ulong batterystats[2];
ulong netetherifstats[2];
char buf[1024];
char *bufp;
char *ebufp;
};
enum
{
Mainproc,
Mouseproc,
NPROC,
};
enum
{
Ncolor = 6,
Ysqueeze = 2, /* vertical squeezing of label text */
Labspace = 2, /* room around label */
Dot = 2, /* height of dot */
Opwid = 5, /* strlen("add ") or strlen("drop ") */
Nlab = 3, /* max number of labels on y axis */
Lablen = 16, /* max length of label */
Lx = 4, /* label tick length */
};
enum Menu2
{
Mbattery,
Mcontext,
Mether,
Methererr,
Metherin,
Metherout,
Mfault,
Midle,
Minintr,
Mintr,
Mload,
Mmem,
Mswap,
Msyscall,
Mtlbmiss,
Mtlbpurge,
Msignal,
Nmenu2,
};
char *menu2str[Nmenu2+1] = {
"add battery ",
"add context ",
"add ether ",
"add ethererr",
"add etherin ",
"add etherout",
"add fault ",
"add idle ",
"add inintr ",
"add intr ",
"add load ",
"add mem ",
"add swap ",
"add syscall ",
"add tlbmiss ",
"add tlbpurge",
"add 802.11b ",
nil,
};
void contextval(Machine*, ulong*, ulong*, int),
etherval(Machine*, ulong*, ulong*, int),
ethererrval(Machine*, ulong*, ulong*, int),
etherinval(Machine*, ulong*, ulong*, int),
etheroutval(Machine*, ulong*, ulong*, int),
faultval(Machine*, ulong*, ulong*, int),
intrval(Machine*, ulong*, ulong*, int),
inintrval(Machine*, ulong*, ulong*, int),
loadval(Machine*, ulong*, ulong*, int),
idleval(Machine*, ulong*, ulong*, int),
memval(Machine*, ulong*, ulong*, int),
swapval(Machine*, ulong*, ulong*, int),
syscallval(Machine*, ulong*, ulong*, int),
tlbmissval(Machine*, ulong*, ulong*, int),
tlbpurgeval(Machine*, ulong*, ulong*, int),
batteryval(Machine*, ulong*, ulong*, int),
signalval(Machine*, ulong*, ulong*, int);
Menu menu2 = {menu2str, nil};
int present[Nmenu2];
void (*newvaluefn[Nmenu2])(Machine*, ulong*, ulong*, int init) = {
batteryval,
contextval,
etherval,
ethererrval,
etherinval,
etheroutval,
faultval,
idleval,
inintrval,
intrval,
loadval,
memval,
swapval,
syscallval,
tlbmissval,
tlbpurgeval,
signalval,
};
Image *cols[Ncolor][3];
Graph *graph;
Machine *mach;
Font *mediumfont;
char *mysysname;
char argchars[] = "8bceEfiImlnpstw";
int pids[NPROC];
int parity; /* toggled to avoid patterns in textured background */
int nmach;
int ngraph; /* totaly number is ngraph*nmach */
double scale = 1.0;
int logscale = 0;
int ylabels = 0;
int oldsystem = 0;
int sleeptime = 1000;
char *procnames[NPROC] = {"main", "mouse"};
void
killall(char *s)
{
int i, pid;
pid = getpid();
for(i=0; i<NPROC; i++)
if(pids[i] && pids[i]!=pid)
postnote(PNPROC, pids[i], "kill");
exits(s);
}
void*
emalloc(ulong sz)
{
void *v;
v = malloc(sz);
if(v == nil) {
fprint(2, "stats: out of memory allocating %ld: %r\n", sz);
killall("mem");
}
memset(v, 0, sz);
return v;
}
void*
erealloc(void *v, ulong sz)
{
v = realloc(v, sz);
if(v == nil) {
fprint(2, "stats: out of memory reallocating %ld: %r\n", sz);
killall("mem");
}
return v;
}
char*
estrdup(char *s)
{
char *t;
if((t = strdup(s)) == nil) {
fprint(2, "stats: out of memory in strdup(%.10s): %r\n", s);
killall("mem");
}
return t;
}
void
mkcol(int i, int c0, int c1, int c2)
{
cols[i][0] = allocimagemix(display, c0, DWhite);
cols[i][1] = allocimage(display, Rect(0,0,1,1), CMAP8, 1, c1);
cols[i][2] = allocimage(display, Rect(0,0,1,1), CMAP8, 1, c2);
}
void
colinit(void)
{
mediumfont = openfont(display, "/lib/font/bit/pelm/latin1.8.font");
if(mediumfont == nil)
mediumfont = font;
/* Peach */
mkcol(0, 0xFFAAAAFF, 0xFFAAAAFF, 0xBB5D5DFF);
/* Aqua */
mkcol(1, DPalebluegreen, DPalegreygreen, DPurpleblue);
/* Yellow */
mkcol(2, DPaleyellow, DDarkyellow, DYellowgreen);
/* Green */
mkcol(3, DPalegreen, DMedgreen, DDarkgreen);
/* Blue */
mkcol(4, 0x00AAFFFF, 0x00AAFFFF, 0x0088CCFF);
/* Grey */
cols[5][0] = allocimage(display, Rect(0,0,1,1), CMAP8, 1, 0xEEEEEEFF);
cols[5][1] = allocimage(display, Rect(0,0,1,1), CMAP8, 1, 0xCCCCCCFF);
cols[5][2] = allocimage(display, Rect(0,0,1,1), CMAP8, 1, 0x888888FF);
}
int
loadbuf(Machine *m, int *fd)
{
int n;
if(*fd < 0)
return 0;
seek(*fd, 0, 0);
n = read(*fd, m->buf, sizeof m->buf-1);
if(n <= 0){
close(*fd);
*fd = -1;
return 0;
}
m->bufp = m->buf;
m->ebufp = m->buf+n;
m->buf[n] = 0;
return 1;
}
void
label(Point p, int dy, char *text)
{
char *s;
Rune r[2];
int w, maxw, maxy;
p.x += Labspace;
maxy = p.y+dy;
maxw = 0;
r[1] = '\0';
for(s=text; *s; ){
if(p.y+mediumfont->height-Ysqueeze > maxy)
break;
w = chartorune(r, s);
s += w;
w = runestringwidth(mediumfont, r);
if(w > maxw)
maxw = w;
runestring(screen, p, display->black, ZP, mediumfont, r);
p.y += mediumfont->height-Ysqueeze;
}
}
Point
paritypt(int x)
{
return Pt(x+parity, 0);
}
Point
datapoint(Graph *g, int x, ulong v, ulong vmax)
{
Point p;
double y;
p.x = x;
y = ((double)v)/(vmax*scale);
if(logscale){
/*
* Arrange scale to cover a factor of 1000.
* vmax corresponds to the 100 mark.
* 10*vmax is the top of the scale.
*/
if(y <= 0.)
y = 0;
else{
y = log10(y);
/* 1 now corresponds to the top; -2 to the bottom; rescale */
y = (y+2.)/3.;
}
}
p.y = g->r.max.y - Dy(g->r)*y - Dot;
if(p.y < g->r.min.y)
p.y = g->r.min.y;
if(p.y > g->r.max.y-Dot)
p.y = g->r.max.y-Dot;
return p;
}
void
drawdatum(Graph *g, int x, ulong prev, ulong v, ulong vmax)
{
int c;
Point p, q;
c = g->colindex;
p = datapoint(g, x, v, vmax);
q = datapoint(g, x, prev, vmax);
if(p.y < q.y){
draw(screen, Rect(p.x, g->r.min.y, p.x+1, p.y), cols[c][0], nil, paritypt(p.x));
draw(screen, Rect(p.x, p.y, p.x+1, q.y+Dot), cols[c][2], nil, ZP);
draw(screen, Rect(p.x, q.y+Dot, p.x+1, g->r.max.y), cols[c][1], nil, ZP);
}else{
draw(screen, Rect(p.x, g->r.min.y, p.x+1, q.y), cols[c][0], nil, paritypt(p.x));
draw(screen, Rect(p.x, q.y, p.x+1, p.y+Dot), cols[c][2], nil, ZP);
draw(screen, Rect(p.x, p.y+Dot, p.x+1, g->r.max.y), cols[c][1], nil, ZP);
}
}
void
redraw(Graph *g, ulong vmax)
{
int i, c;
c = g->colindex;
draw(screen, g->r, cols[c][0], nil, paritypt(g->r.min.x));
for(i=1; i<Dx(g->r); i++)
drawdatum(g, g->r.max.x-i, g->data[i-1], g->data[i], vmax);
drawdatum(g, g->r.min.x, g->data[i], g->data[i], vmax);
g->overflow = 0;
}
void
update1(Graph *g, ulong v, ulong vmax)
{
char buf[48];
int overflow;
if(g->overflow && g->overtmp!=nil)
draw(screen, g->overtmp->r, g->overtmp, nil, g->overtmp->r.min);
draw(screen, g->r, screen, nil, Pt(g->r.min.x+1, g->r.min.y));
drawdatum(g, g->r.max.x-1, g->data[0], v, vmax);
memmove(g->data+1, g->data, (g->ndata-1)*sizeof(g->data[0]));
g->data[0] = v;
g->overflow = 0;
if(logscale)
overflow = (v>10*vmax*scale);
else
overflow = (v>vmax*scale);
if(overflow && g->overtmp!=nil){
g->overflow = 1;
draw(g->overtmp, g->overtmp->r, screen, nil, g->overtmp->r.min);
sprint(buf, "%lud", v);
string(screen, g->overtmp->r.min, display->black, ZP, mediumfont, buf);
}
}
/* read one line of text from buffer and process integers */
int
readnums(Machine *m, int n, ulong *a, int spanlines)
{
int i;
char *p, *ep;
if(spanlines)
ep = m->ebufp;
else
for(ep=m->bufp; ep<m->ebufp; ep++)
if(*ep == '\n')
break;
p = m->bufp;
for(i=0; i<n && p<ep; i++){
while(p<ep && !isdigit(*p) && *p!='-')
p++;
if(p == ep)
break;
a[i] = strtoul(p, &p, 10);
}
if(ep < m->ebufp)
ep++;
m->bufp = ep;
return i == n;
}
/* Network on fd1, mount driver on fd0 */
static int
filter(int fd)
{
int p[2];
if(pipe(p) < 0){
fprint(2, "stats: can't pipe: %r\n");
killall("pipe");
}
switch(rfork(RFNOWAIT|RFPROC|RFFDG)) {
case -1:
sysfatal("rfork record module");
case 0:
dup(fd, 1);
close(fd);
dup(p[0], 0);
close(p[0]);
close(p[1]);
execl("/bin/aux/fcall", "fcall", nil);
fprint(2, "stats: can't exec fcall: %r\n");
killall("fcall");
default:
close(fd);
close(p[0]);
}
return p[1];
}
/*
* 9fs
*/
int
connect9fs(char *addr)
{
char dir[256], *na;
int fd;
fprint(2, "connect9fs...");
na = netmkaddr(addr, 0, "9fs");
fprint(2, "dial %s...", na);
if((fd = dial(na, 0, dir, 0)) < 0)
return -1;
fprint(2, "dir %s...", dir);
// if(strstr(dir, "tcp"))
// fd = filter(fd);
return fd;
}
int
old9p(int fd)
{
int p[2];
if(pipe(p) < 0)
return -1;
switch(rfork(RFPROC|RFFDG|RFNAMEG)) {
case -1:
return -1;
case 0:
if(fd != 1){
dup(fd, 1);
close(fd);
}
if(p[0] != 0){
dup(p[0], 0);
close(p[0]);
}
close(p[1]);
if(0){
fd = open("/sys/log/cpu", OWRITE);
if(fd != 2){
dup(fd, 2);
close(fd);
}
execl("/bin/srvold9p", "srvold9p", "-ds", nil);
} else
execl("/bin/srvold9p", "srvold9p", "-s", nil);
return -1;
default:
close(fd);
close(p[0]);
}
return p[1];
}
/*
* exportfs
*/
int
connectexportfs(char *addr)
{
char buf[ERRMAX], dir[256], *na;
int fd, n;
char *tree;
AuthInfo *ai;
tree = "/";
na = netmkaddr(addr, 0, "exportfs");
if((fd = dial(na, 0, dir, 0)) < 0)
return -1;
ai = auth_proxy(fd, auth_getkey, "proto=p9any role=client");
if(ai == nil)
return -1;
n = write(fd, tree, strlen(tree));
if(n < 0){
close(fd);
return -1;
}
strcpy(buf, "can't read tree");
n = read(fd, buf, sizeof buf - 1);
if(n!=2 || buf[0]!='O' || buf[1]!='K'){
buf[sizeof buf - 1] = '\0';
werrstr("bad remote tree: %s\n", buf);
close(fd);
return -1;
}
// if(strstr(dir, "tcp"))
// fd = filter(fd);
if(oldsystem)
return old9p(fd);
return fd;
}
int
readswap(Machine *m, ulong *a)
{
if(strstr(m->buf, "memory\n")){
/* new /dev/swap - skip first 3 numbers */
if(!readnums(m, 7, a, 1))
return 0;
a[0] = a[3];
a[1] = a[4];
a[2] = a[5];
a[3] = a[6];
return 1;
}
return readnums(m, nelem(m->devswap), a, 0);
}
int
initmach(Machine *m, char *name)
{
int n, fd;
ulong a[MAXNUM];
char *p, mpt[256], buf[256];
p = strchr(name, '!');
if(p)
p++;
else
p = name;
m->name = estrdup(p);
m->remote = (strcmp(p, mysysname) != 0);
if(m->remote == 0)
strcpy(mpt, "");
else{
snprint(mpt, sizeof mpt, "/n/%s", p);
fd = connectexportfs(name);
if(fd < 0){
fprint(2, "can't connect to %s: %r\n", name);
return 0;
}
/* BUG? need to use amount() now? */
if(mount(fd, -1, mpt, MREPL, "") < 0){
fprint(2, "stats: mount %s on %s failed (%r); trying /n/sid\n", name, mpt);
strcpy(mpt, "/n/sid");
if(mount(fd, -1, mpt, MREPL, "") < 0){
fprint(2, "stats: mount %s on %s failed: %r\n", name, mpt);
return 0;
}
}
}
snprint(buf, sizeof buf, "%s/dev/swap", mpt);
m->swapfd = open(buf, OREAD);
if(loadbuf(m, &m->swapfd) && readswap(m, a))
memmove(m->devswap, a, sizeof m->devswap);
else
m->devswap[Maxmem] = m->devswap[Maxswap] = 100;
snprint(buf, sizeof buf, "%s/dev/sysstat", mpt);
m->statsfd = open(buf, OREAD);
if(loadbuf(m, &m->statsfd)){
for(n=0; readnums(m, nelem(m->devsysstat), a, 0); n++)
;
m->nproc = n;
}else
m->nproc = 1;
snprint(buf, sizeof buf, "%s/net/ether0/stats", mpt);
m->etherfd = open(buf, OREAD);
if(loadbuf(m, &m->etherfd) && readnums(m, nelem(m->netetherstats), a, 1))
memmove(m->netetherstats, a, sizeof m->netetherstats);
snprint(buf, sizeof buf, "%s/net/ether0/ifstats", mpt);
m->ifstatsfd = open(buf, OREAD);
if(loadbuf(m, &m->ifstatsfd)){
/* need to check that this is a wavelan interface */
if(strncmp(m->buf, "Signal: ", 8) == 0 && readnums(m, nelem(m->netetherifstats), a, 1))
memmove(m->netetherifstats, a, sizeof m->netetherifstats);
}
snprint(buf, sizeof buf, "%s/mnt/apm/battery", mpt);
m->batteryfd = open(buf, OREAD);
m->bitsybatfd = -1;
if(m->batteryfd >= 0){
if(loadbuf(m, &m->batteryfd) && readnums(m, nelem(m->batterystats), a, 0))
memmove(m->batterystats, a, sizeof(m->batterystats));
}else{
snprint(buf, sizeof buf, "%s/dev/battery", mpt);
m->bitsybatfd = open(buf, OREAD);
if(loadbuf(m, &m->bitsybatfd) && readnums(m, 1, a, 0))
memmove(m->batterystats, a, sizeof(m->batterystats));
}
return 1;
}
jmp_buf catchalarm;
void
alarmed(void *a, char *s)
{
if(strcmp(s, "alarm") == 0)
notejmp(a, catchalarm, 1);
noted(NDFLT);
}
int
needswap(int init)
{
return init | present[Mmem] | present[Mswap];
}
int
needstat(int init)
{
return init | present[Mcontext] | present[Mfault] | present[Mintr] | present[Mload] | present[Midle] |
present[Minintr] | present[Msyscall] | present[Mtlbmiss] | present[Mtlbpurge];
}
int
needether(int init)
{
return init | present[Mether] | present[Metherin] | present[Metherout] | present[Methererr];
}
int
needbattery(int init)
{
return init | present[Mbattery];
}
int
needsignal(int init)
{
return init | present[Msignal];
}
void
readmach(Machine *m, int init)
{
int n, i;
ulong a[8];
char buf[32];
if(m->remote && (m->disable || setjmp(catchalarm))){
if (m->disable++ >= 5)
m->disable = 0; /* give it another chance */
memmove(m->devsysstat, m->prevsysstat, sizeof m->devsysstat);
memmove(m->netetherstats, m->prevetherstats, sizeof m->netetherstats);
return;
}
snprint(buf, sizeof buf, "%s", m->name);
if (strcmp(m->name, buf) != 0){
free(m->name);
m->name = estrdup(buf);
if(display != nil) /* else we're still initializing */
eresized(0);
}
if(m->remote){
notify(alarmed);
alarm(5000);
}
if(needswap(init) && loadbuf(m, &m->swapfd) && readswap(m, a))
memmove(m->devswap, a, sizeof m->devswap);
if(needstat(init) && loadbuf(m, &m->statsfd)){
memmove(m->prevsysstat, m->devsysstat, sizeof m->devsysstat);
memset(m->devsysstat, 0, sizeof m->devsysstat);
for(n=0; n<m->nproc && readnums(m, nelem(m->devsysstat), a, 0); n++)
for(i=0; i<nelem(m->devsysstat); i++)
m->devsysstat[i] += a[i];
}
if(needether(init) && loadbuf(m, &m->etherfd) && readnums(m, nelem(m->netetherstats), a, 1)){
memmove(m->prevetherstats, m->netetherstats, sizeof m->netetherstats);
memmove(m->netetherstats, a, sizeof m->netetherstats);
}
if(needsignal(init) && loadbuf(m, &m->ifstatsfd) && strncmp(m->buf, "Signal: ", 8)==0 && readnums(m, nelem(m->netetherifstats), a, 1)){
memmove(m->netetherifstats, a, sizeof m->netetherifstats);
}
if(needbattery(init) && loadbuf(m, &m->batteryfd) && readnums(m, nelem(m->batterystats), a, 0))
memmove(m->batterystats, a, sizeof(m->batterystats));
if(needbattery(init) && loadbuf(m, &m->bitsybatfd) && readnums(m, 1, a, 0))
memmove(m->batterystats, a, sizeof(m->batterystats));
if(m->remote){
alarm(0);
notify(nil);
}
}
void
memval(Machine *m, ulong *v, ulong *vmax, int)
{
*v = m->devswap[Mem];
*vmax = m->devswap[Maxmem];
}
void
swapval(Machine *m, ulong *v, ulong *vmax, int)
{
*v = m->devswap[Swap];
*vmax = m->devswap[Maxswap];
}
void
contextval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[Context]-m->prevsysstat[Context];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
intrval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[Interrupt]-m->prevsysstat[Interrupt];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
syscallval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[Syscall]-m->prevsysstat[Syscall];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
faultval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[Fault]-m->prevsysstat[Fault];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
tlbmissval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[TLBfault]-m->prevsysstat[TLBfault];
*vmax = (sleeptime/1000)*10*m->nproc;
if(init)
*vmax = (sleeptime/1000)*10;
}
void
tlbpurgeval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[TLBpurge]-m->prevsysstat[TLBpurge];
*vmax = (sleeptime/1000)*10*m->nproc;
if(init)
*vmax = (sleeptime/1000)*10;
}
void
loadval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->devsysstat[Load];
*vmax = 1000*m->nproc;
if(init)
*vmax = 1000;
}
void
idleval(Machine *m, ulong *v, ulong *vmax, int)
{
*v = m->devsysstat[Idle]/m->nproc;
*vmax = 100;
}
void
inintrval(Machine *m, ulong *v, ulong *vmax, int)
{
*v = m->devsysstat[InIntr]/m->nproc;
*vmax = 100;
}
void
etherval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->netetherstats[In]-m->prevetherstats[In] + m->netetherstats[Out]-m->prevetherstats[Out];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
etherinval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->netetherstats[In]-m->prevetherstats[In];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
etheroutval(Machine *m, ulong *v, ulong *vmax, int init)
{
*v = m->netetherstats[Out]-m->prevetherstats[Out];
*vmax = sleeptime*m->nproc;
if(init)
*vmax = sleeptime;
}
void
ethererrval(Machine *m, ulong *v, ulong *vmax, int init)
{
int i;
*v = 0;
for(i=Err0; i<nelem(m->netetherstats); i++)
*v += m->netetherstats[i];
*vmax = (sleeptime/1000)*10*m->nproc;
if(init)
*vmax = (sleeptime/1000)*10;
}
void
batteryval(Machine *m, ulong *v, ulong *vmax, int)
{
*v = m->batterystats[0];
if(m->bitsybatfd >= 0)
*vmax = 184; // at least on my bitsy...
else
*vmax = 100;
}
void
signalval(Machine *m, ulong *v, ulong *vmax, int)
{
ulong l;
*vmax = sleeptime;
l = m->netetherifstats[0];
/*
* Range is seen to be from about -45 (strong) to -95 (weak); rescale
*/
if(l == 0){ /* probably not present */
*v = 0;
return;
}
*v = 20*(l+95);
}
void
usage(void)
{
fprint(2, "usage: stats [-O] [-S scale] [-LY] [-%s] [machine...]\n", argchars);
exits("usage");
}
void
addgraph(int n)
{
Graph *g, *ograph;
int i, j;
static int nadd;
if(n > nelem(menu2str))
abort();
/* avoid two adjacent graphs of same color */
if(ngraph>0 && graph[ngraph-1].colindex==nadd%Ncolor)
nadd++;
ograph = graph;
graph = emalloc(nmach*(ngraph+1)*sizeof(Graph));
for(i=0; i<nmach; i++)
for(j=0; j<ngraph; j++)
graph[i*(ngraph+1)+j] = ograph[i*ngraph+j];
free(ograph);
ngraph++;
for(i=0; i<nmach; i++){
g = &graph[i*ngraph+(ngraph-1)];
memset(g, 0, sizeof(Graph));
g->label = menu2str[n]+Opwid;
g->newvalue = newvaluefn[n];
g->update = update1; /* no other update functions yet */
g->mach = &mach[i];
g->colindex = nadd%Ncolor;
}
present[n] = 1;
nadd++;
}
void
dropgraph(int which)
{
Graph *ograph;
int i, j, n;
if(which > nelem(menu2str))
abort();
/* convert n to index in graph table */
n = -1;
for(i=0; i<ngraph; i++)
if(strcmp(menu2str[which]+Opwid, graph[i].label) == 0){
n = i;
break;
}
if(n < 0){
fprint(2, "stats: internal error can't drop graph\n");
killall("error");
}
ograph = graph;
graph = emalloc(nmach*(ngraph-1)*sizeof(Graph));
for(i=0; i<nmach; i++){
for(j=0; j<n; j++)
graph[i*(ngraph-1)+j] = ograph[i*ngraph+j];
free(ograph[i*ngraph+j].data);
freeimage(ograph[i*ngraph+j].overtmp);
for(j++; j<ngraph; j++)
graph[i*(ngraph-1)+j-1] = ograph[i*ngraph+j];
}
free(ograph);
ngraph--;
present[which] = 0;
}
int
addmachine(char *name)
{
if(ngraph > 0){
fprint(2, "stats: internal error: ngraph>0 in addmachine()\n");
usage();
}
if(mach == nil)
nmach = 0; /* a little dance to get us started with local machine by default */
mach = erealloc(mach, (nmach+1)*sizeof(Machine));
memset(mach+nmach, 0, sizeof(Machine));
if (initmach(mach+nmach, name)){
nmach++;
return 1;
} else
return 0;
}
void
labelstrs(Graph *g, char strs[Nlab][Lablen], int *np)
{
int j;
ulong v, vmax;
g->newvalue(g->mach, &v, &vmax, 1);
if(logscale){
for(j=1; j<=2; j++)
sprint(strs[j-1], "%g", scale*pow(10., j)*(double)vmax/100.);
*np = 2;
}else{
for(j=1; j<=3; j++)
sprint(strs[j-1], "%g", scale*(double)j*(double)vmax/4.0);
*np = 3;
}
}
int
labelwidth(void)
{
int i, j, n, w, maxw;
char strs[Nlab][Lablen];
maxw = 0;
for(i=0; i<ngraph; i++){
/* choose value for rightmost graph */
labelstrs(&graph[ngraph*(nmach-1)+i], strs, &n);
for(j=0; j<n; j++){
w = stringwidth(mediumfont, strs[j]);
if(w > maxw)
maxw = w;
}
}
return maxw;
}
void
resize(void)
{
int i, j, k, n, startx, starty, x, y, dx, dy, ly, ondata, maxx, wid, nlab;
Graph *g;
Rectangle machr, r;
ulong v, vmax;
char buf[128], labs[Nlab][Lablen];
draw(screen, screen->r, display->white, nil, ZP);
/* label left edge */
x = screen->r.min.x;
y = screen->r.min.y + Labspace+mediumfont->height+Labspace;
dy = (screen->r.max.y - y)/ngraph;
dx = Labspace+stringwidth(mediumfont, "0")+Labspace;
startx = x+dx+1;
starty = y;
for(i=0; i<ngraph; i++,y+=dy){
draw(screen, Rect(x, y-1, screen->r.max.x, y), display->black, nil, ZP);
draw(screen, Rect(x, y, x+dx, screen->r.max.y), cols[graph[i].colindex][0], nil, paritypt(x));
label(Pt(x, y), dy, graph[i].label);
draw(screen, Rect(x+dx, y, x+dx+1, screen->r.max.y), cols[graph[i].colindex][2], nil, ZP);
}
/* label top edge */
dx = (screen->r.max.x - startx)/nmach;
for(x=startx, i=0; i<nmach; i++,x+=dx){
draw(screen, Rect(x-1, starty-1, x, screen->r.max.y), display->black, nil, ZP);
j = dx/stringwidth(mediumfont, "0");
n = mach[i].nproc;
if(n>1 && j>=1+3+(n>10)+(n>100)){ /* first char of name + (n) */
j -= 3+(n>10)+(n>100);
if(j <= 0)
j = 1;
snprint(buf, sizeof buf, "%.*s(%d)", j, mach[i].name, n);
}else
snprint(buf, sizeof buf, "%.*s", j, mach[i].name);
string(screen, Pt(x+Labspace, screen->r.min.y + Labspace), display->black, ZP, mediumfont, buf);
}
maxx = screen->r.max.x;
/* label right, if requested */
if(ylabels && dy>Nlab*(mediumfont->height+1)){
wid = labelwidth();
if(wid < (maxx-startx)-30){
/* else there's not enough room */
maxx -= 1+Lx+wid;
draw(screen, Rect(maxx, starty, maxx+1, screen->r.max.y), display->black, nil, ZP);
y = starty;
for(j=0; j<ngraph; j++, y+=dy){
/* choose value for rightmost graph */
g = &graph[ngraph*(nmach-1)+j];
labelstrs(g, labs, &nlab);
r = Rect(maxx+1, y, screen->r.max.x, y+dy-1);
if(j == ngraph-1)
r.max.y = screen->r.max.y;
draw(screen, r, cols[g->colindex][0], nil, paritypt(r.min.x));
for(k=0; k<nlab; k++){
ly = y + (dy*(nlab-k)/(nlab+1));
draw(screen, Rect(maxx+1, ly, maxx+1+Lx, ly+1), display->black, nil, ZP);
ly -= mediumfont->height/2;
string(screen, Pt(maxx+1+Lx, ly), display->black, ZP, mediumfont, labs[k]);
}
}
}
}
/* create graphs */
for(i=0; i<nmach; i++){
machr = Rect(startx+i*dx, starty, maxx, screen->r.max.y);
if(i < nmach-1)
machr.max.x = startx+(i+1)*dx - 1;
y = starty;
for(j=0; j<ngraph; j++, y+=dy){
g = &graph[i*ngraph+j];
/* allocate data */
ondata = g->ndata;
g->ndata = Dx(machr)+1; /* may be too many if label will be drawn here; so what? */
g->data = erealloc(g->data, g->ndata*sizeof(ulong));
if(g->ndata > ondata)
memset(g->data+ondata, 0, (g->ndata-ondata)*sizeof(ulong));
/* set geometry */
g->r = machr;
g->r.min.y = y;
g->r.max.y = y+dy - 1;
if(j == ngraph-1)
g->r.max.y = screen->r.max.y;
draw(screen, g->r, cols[g->colindex][0], nil, paritypt(g->r.min.x));
g->overflow = 0;
r = g->r;
r.max.y = r.min.y+mediumfont->height;
r.max.x = r.min.x+stringwidth(mediumfont, "999999999999");
freeimage(g->overtmp);
g->overtmp = nil;
if(r.max.x <= g->r.max.x)
g->overtmp = allocimage(display, r, screen->chan, 0, -1);
g->newvalue(g->mach, &v, &vmax, 0);
redraw(g, vmax);
}
}
flushimage(display, 1);
}
void
eresized(int new)
{
lockdisplay(display);
if(new && getwindow(display, Refnone) < 0) {
fprint(2, "stats: can't reattach to window\n");
killall("reattach");
}
resize();
unlockdisplay(display);
}
void
mouseproc(void)
{
Mouse mouse;
int i;
for(;;){
mouse = emouse();
if(mouse.buttons == 4){
lockdisplay(display);
for(i=0; i<Nmenu2; i++)
if(present[i])
memmove(menu2str[i], "drop ", Opwid);
else
memmove(menu2str[i], "add ", Opwid);
i = emenuhit(3, &mouse, &menu2);
if(i >= 0){
if(!present[i])
addgraph(i);
else if(ngraph > 1)
dropgraph(i);
resize();
}
unlockdisplay(display);
}
}
}
void
startproc(void (*f)(void), int index)
{
int pid;
switch(pid = rfork(RFPROC|RFMEM|RFNOWAIT)){
case -1:
fprint(2, "stats: fork failed: %r\n");
killall("fork failed");
case 0:
f();
fprint(2, "stats: %s process exits\n", procnames[index]);
if(index >= 0)
killall("process died");
exits(nil);
}
if(index >= 0)
pids[index] = pid;
}
void
main(int argc, char *argv[])
{
int i, j;
double secs;
ulong v, vmax, nargs;
char args[100];
nmach = 1;
mysysname = getenv("sysname");
if(mysysname == nil){
fprint(2, "stats: can't find $sysname: %r\n");
exits("sysname");
}
mysysname = estrdup(mysysname);
nargs = 0;
ARGBEGIN{
case 'T':
secs = atof(EARGF(usage()));
if(secs > 0)
sleeptime = 1000*secs;
break;
case 'S':
scale = atof(EARGF(usage()));
if(scale <= 0)
usage();
break;
case 'L':
logscale++;
break;
case 'Y':
ylabels++;
break;
case 'O':
oldsystem = 1;
break;
default:
if(nargs>=sizeof args || strchr(argchars, ARGC())==nil)
usage();
args[nargs++] = ARGC();
}ARGEND
if(argc == 0){
mach = emalloc(nmach*sizeof(Machine));
initmach(&mach[0], mysysname);
readmach(&mach[0], 1);
}else{
for(i=j=0; i<argc; i++){
if (addmachine(argv[i]))
readmach(&mach[j++], 1);
}
if (j == 0)
exits("connect");
}
for(i=0; i<nargs; i++)
switch(args[i]){
default:
fprint(2, "stats: internal error: unknown arg %c\n", args[i]);
usage();
case 'b':
addgraph(Mbattery);
break;
case 'c':
addgraph(Mcontext);
break;
case 'e':
addgraph(Mether);
break;
case 'E':
addgraph(Metherin);
addgraph(Metherout);
break;
case 'f':
addgraph(Mfault);
break;
case 'i':
addgraph(Mintr);
break;
case 'I':
addgraph(Mload);
addgraph(Midle);
addgraph(Minintr);
break;
case 'l':
addgraph(Mload);
break;
case 'm':
addgraph(Mmem);
break;
case 'n':
addgraph(Metherin);
addgraph(Metherout);
addgraph(Methererr);
break;
case 'p':
addgraph(Mtlbpurge);
break;
case 's':
addgraph(Msyscall);
break;
case 't':
addgraph(Mtlbmiss);
addgraph(Mtlbpurge);
break;
case '8':
addgraph(Msignal);
break;
case 'w':
addgraph(Mswap);
break;
}
if(ngraph == 0)
addgraph(Mload);
for(i=0; i<nmach; i++)
for(j=0; j<ngraph; j++)
graph[i*ngraph+j].mach = &mach[i];
if(initdraw(nil, nil, "stats") < 0){
fprint(2, "stats: initdraw failed: %r\n");
exits("initdraw");
}
colinit();
einit(Emouse);
notify(nil);
startproc(mouseproc, Mouseproc);
pids[Mainproc] = getpid();
display->locking = 1; /* tell library we're using the display lock */
resize();
unlockdisplay(display); /* display is still locked from initdraw() */
for(;;){
for(i=0; i<nmach; i++)
readmach(&mach[i], 0);
lockdisplay(display);
parity = 1-parity;
for(i=0; i<nmach*ngraph; i++){
graph[i].newvalue(graph[i].mach, &v, &vmax, 0);
if (v > 1000000)
v = 1000000; /* cap absurd values */
graph[i].update(&graph[i], v, vmax);
}
flushimage(display, 1);
unlockdisplay(display);
sleep(sleeptime);
}
}
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