SPDP dtime(void)
{
SPDP q;
int secs, msecs;
u32_t system_hz;
times(&tms);
getsysinfo_up(PM_PROC_NR, SIU_SYSTEMHZ, sizeof(system_hz), &system_hz);
secs = tms.tms_utime / system_hz;
q = secs;
tms.tms_utime -= secs * system_hz;
msecs = tms.tms_utime * 100 / system_hz;
q += (float) msecs * 0.01;
return q;
}
int main(int argc, char *argv[])
{
int r, c, s = 0, orig;
getsysinfo_up(PM_PROC_NR, SIU_SYSTEMHZ, sizeof(system_hz), &system_hz);
init(&r);
while((c=getopt(argc, argv, "s:B")) != EOF) {
switch(c) {
case 's':
s = atoi(optarg);
break;
case 'B':
blockedverbose = 1;
break;
default:
fprintf(stderr,
"Usage: %s [-s<secdelay>] [-B]\n",
argv[0]);
return 1;
}
}
if(s < 1)
s = 2;
/* Catch window size changes so display is updated properly
* right away.
*/
signal(SIGWINCH, sigwinch);
while(1) {
fd_set fds;
int ns;
struct timeval tv;
showtop(r);
tv.tv_sec = s;
tv.tv_usec = 0;
FD_ZERO(&fds);
FD_SET(STDIN_FILENO, &fds);
if((ns=select(STDIN_FILENO+1, &fds, NULL, NULL, &tv)) < 0
&& errno != EINTR) {
perror("select");
sleep(1);
}
if(ns > 0 && FD_ISSET(STDIN_FILENO, &fds)) {
char c;
if(read(STDIN_FILENO, &c, 1) == 1) {
switch(c) {
case 'q':
return 0;
break;
}
}
}
}
return 0;
}
/* Retrieve system load average information. */
int getloadavg(double *loadavg, int nelem)
{
struct loadinfo loadinfo;
static u32_t system_hz = 0;
int h, p, unfilled_ticks;
#define PERIODS 3
int minutes[3] = { 1, 5, 15 };
size_t loadsize;
ssize_t l;
if(nelem < 1) {
errno = ENOSPC;
return -1;
}
if(system_hz == 0) {
if((getsysinfo_up(PM_PROC_NR, SIU_SYSTEMHZ,
sizeof(system_hz), &system_hz)) < 0) {
system_hz = DEFAULT_HZ;
}
}
loadsize = sizeof(loadinfo);
if((l=getsysinfo_up(PM_PROC_NR, SIU_LOADINFO, loadsize, &loadinfo)) < 0)
return -1;
if(l != sizeof(loadinfo))
return -1;
if(nelem > PERIODS)
nelem = PERIODS;
/* How many ticks are missing from the newest-filled slot? */
#define TICKSPERSLOT (_LOAD_UNIT_SECS * system_hz)
unfilled_ticks = TICKSPERSLOT - (loadinfo.last_clock % TICKSPERSLOT);
for(p = 0; p < nelem; p++) {
int h, offset, slots;
double l = 0.0;
int latest = loadinfo.proc_last_slot;
slots = minutes[p] * 60 / _LOAD_UNIT_SECS;
/* Add up the total number of process ticks for this number
* of minutes (minutes[p]). Start with the newest slot, which
* is latest, and count back for the number of slots that
* correspond to the right number of minutes. Take wraparound
* into account by calculating the index modulo _LOAD_HISTORY,
* which is the number of slots of history kept.
*/
for(h = 0; h < slots; h++) {
int slot;
slot = (latest - h + _LOAD_HISTORY) % _LOAD_HISTORY;
l += (double) loadinfo.proc_load_history[slot];
}
/* The load average over this number of minutes is the number of
* process-ticks divided by the number of ticks, not counting the
* number of ticks the last slot hasn't been around yet.
*/
loadavg[p] = l / (slots * TICKSPERSLOT - unfilled_ticks);
}
return nelem;
}
int main(int argc, char*argv[])
{
char *ipstat_device;
int fd, i, r;
char *query, *pval;
size_t len;
struct timeval uptime;
clock_t now;
int fl;
int a_flag, n_flag, v_flag;
struct tms tmsbuf;
getsysinfo_up(PM_PROC_NR, SIU_SYSTEMHZ, sizeof(system_hz), &system_hz);
(prog_name=strrchr(argv[0], '/')) ? prog_name++ : (prog_name=argv[0]);
a_flag= 0;
n_flag= 0;
v_flag= 0;
while ((fl= getopt(argc, argv, "?anv")) != -1)
{
switch(fl)
{
case '?':
usage();
case 'a':
a_flag= 1;
break;
case 'n':
n_flag= 1;
break;
case 'v':
v_flag= 1;
break;
default:
fprintf(stderr, "%s: getopt failed: '%c'\n",
prog_name, fl);
exit(1);
}
}
inclListen= !!a_flag;
numerical= !!n_flag;
verbose= !!v_flag;
ipstat_device= IPSTAT_DEVICE;
if ((fd= open(ipstat_device, O_RDWR)) == -1)
{
fprintf(stderr, "%s: unable to open '%s': %s\n", prog_name,
ipstat_device, strerror(errno));
exit(1);
}
query= "tcp_conn_table";
len= strlen(query);
r= write(fd, query, len);
if (r != len)
{
fprintf(stderr, "%s: write to %s failed: %s\n",
prog_name, ipstat_device, r < 0 ? strerror(errno) :
"short write");
exit(1);
}
r= read(fd, values, sizeof(values));
if (r == -1)
{
fprintf(stderr, "%s: read from %s failed: %s\n", prog_name,
ipstat_device, strerror(errno));
exit(1);
}
pval= values;
if (paramvalue(&pval, tcp_conn_table, sizeof(tcp_conn_table)) !=
sizeof(tcp_conn_table))
{
fprintf(stderr,
"%s: unable to decode the results from queryparam\n",
prog_name);
exit(1);
}
#ifdef __minix_vmd
/* Get the uptime in clock ticks. */
if (sysutime(UTIME_UPTIME, &uptime) == -1)
{
fprintf(stderr, "%s: sysutime failed: %s\n", prog_name,
strerror(errno));
exit(1);
}
now= uptime.tv_sec * HZ + (uptime.tv_usec*HZ/1000000);
#else /* Minix 3 */
now= times(&tmsbuf);
#endif
for (i= 0; i<TCP_CONN_NR; i++)
print_conn(i, now);
exit(0);
}
