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/*
* rstatd for linux using /proc/stat
* Copyright (C) 1993 Rudolf Koenig
*
* Adapted for Linux kernel version 0.99.15y and newer by Karl Keyte
* Date: 94.03.09 e-Mail: KKEYTE@ESOC.BITNET
*
* Adapted for Linux kernel version 1.00 and newer by Malcolm Reeves
* Date: 94.05.24 e-Mail: reeves@pangea.usask.ca
*
* 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, 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 (see the file COPYING); if not, write to the
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <rpc/rpc.h>
#include <stdio.h>
#include "rstat.h"
#ifdef NO_RPC_LIB
#define rstatproc_stats_3 rstatproc_stats_3_svc
#define rstatproc_stats_2 rstatproc_stats_2_svc
#define rstatproc_stats_1 rstatproc_stats_1_svc
#define rstatproc_havedisk_3 rstatproc_havedisk_3_svc
#define rstatproc_havedisk_2 rstatproc_havedisk_2_svc
#define rstatproc_havedisk_1 rstatproc_havedisk_1_svc
#endif
struct statstime s_t;
struct statsswtch s_s;
struct stats s_o; /* orig */
int havedisk = 0;
static void fill_s_t();
struct statstime *
rstatproc_stats_3(v, cl)
void *v;
struct svc_req *cl;
{
fill_s_t();
return &s_t;
}
struct statsswtch *
rstatproc_stats_2(v, cl)
void *v;
struct svc_req *cl;
{
fill_s_t();
bcopy((char *)&s_t, (char *)&s_s, sizeof(s_s) - sizeof(int));
s_s.if_opackets = s_t.if_opackets;
return &s_s;
}
struct stats *
rstatproc_stats_1(v, cl)
void *v;
struct svc_req *cl;
{
fill_s_t();
bcopy((char *)&s_t, (char *)&s_o, sizeof(s_o) - sizeof(int));
s_o.if_opackets = s_t.if_opackets;
return &s_o;
}
unsigned int *
rstatproc_havedisk_3(v, cl)
void *v;
struct svc_req *cl;
{
fill_s_t();
return &havedisk;
}
unsigned int *
rstatproc_havedisk_2(v, cl)
void *v;
struct svc_req *cl;
{
return rstatproc_havedisk_3(v, cl);
}
unsigned int *
rstatproc_havedisk_1(v, cl)
void *v;
struct svc_req *cl;
{
return rstatproc_havedisk_3(v, cl);
}
/* FIXME: unsigned/signed overflow (But: It should seldom occur :-) */
static void
fill_s_t()
{
FILE *fp;
double ld1, ld2, ld3;
/**** Added 94:05:24 *****/
struct timeval tv;
struct timezone tz;
/*************************/
if(!(fp = fopen("/proc/stat", "r")))
return;
fscanf(fp, "cpu %u %u %u %u\n",
&s_t.cp_time[0], &s_t.cp_time[1], &s_t.cp_time[2], &s_t.cp_time[3]);
fscanf(fp, "disk %u %u %u %u\n",
&s_t.dk_xfer[0], &s_t.dk_xfer[1], &s_t.dk_xfer[2], &s_t.dk_xfer[3]);
fscanf(fp, "page %u %u\n", &s_t.v_pgpgin, &s_t.v_pgpgout);
fscanf(fp, "swap %u %u\n", &s_t.v_pswpin, &s_t.v_pswpout);
fscanf(fp, "intr %u\n", &s_t.v_intr);
fscanf(fp, "ctxt %u\n", &s_t.v_swtch);
fclose(fp);
if(!(fp = fopen("/proc/loadavg", "r")))
return;
fscanf(fp, "%lf %lf %lf\n", &ld1, &ld2, &ld3);
s_t.avenrun[0] = ld1 * FSCALE;
s_t.avenrun[1] = ld2 * FSCALE;
s_t.avenrun[2] = ld3 * FSCALE;
fclose(fp);
/**** Added 94:05:24 *****/
/* get uptime & idletime */
if(!(fp = fopen("/proc/uptime", "r")))
return;
fscanf(fp, "%lf %lf\n", &ld1, &ld2);
fclose(fp);
/* had trouble reading btime from /proc/stat */
/* so did it this way using gettimeofday() */
/* had to change rstat_timeval struct to */
/* accommodate u_long values for boottime */
gettimeofday(&tv, &tz);
s_t.curtime.tv_sec = tv.tv_sec;
s_t.boottime.tv_sec = s_t.curtime.tv_sec - (u_long)ld1;
/* don't bother with the microseconds */
s_t.curtime.tv_usec = 0;
s_t.boottime.tv_usec = 0;
/**** End of added code ****/
havedisk = 0;
}
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