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/* $XFree86: xc/programs/xload/get_rload.c,v 1.4 2002/01/07 20:38:31 dawes Exp $ */
#include <stdio.h>
#include <X11/Intrinsic.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "xload.h"
/* Not all OS supports get_rload
steal the STUB idea from get_load
*/
#if defined(QNX4) || defined(__CYGWIN__)
#define RLOADSTUB
#endif
#ifdef RLOADSTUB
void GetRLoadPoint(
Widget w, /* unused */
XtPointer closure, /* unused */
XtPointer call_data) /* pointer to (double) return value */
{
*(double *)call_data = 1.0;
}
#else /* RLOADSTUB */
#include <protocols/rwhod.h>
#ifndef _PATH_RWHODIR
#define _PATH_RWHODIR "/var/spool/rwho"
#endif
#define WHDRSIZE ((int)(sizeof (buf) - sizeof (buf.wd_we)))
void GetRLoadPoint(
Widget w, /* unused */
XtPointer closure, /* unused */
XtPointer call_data) /* pointer to (double) return value */
{
int f;
static char *fname = NULL;
static struct whod buf;
int cc;
*(double *)call_data = 0.0; /* to be on the safe side */
if (fname == NULL) {
if ((fname = malloc(strlen(_PATH_RWHODIR)+strlen("/whod.")+strlen(resources.remote)+1)) == NULL) {
fprintf(stderr,"GetRLoadPoint: malloc() failed\n");
exit(1);
}
strcpy(fname,_PATH_RWHODIR);
strcat(fname,"/whod.");
strcat(fname,resources.remote);
}
if ((f = open(fname, O_RDONLY, 0)) < 0)
return;
cc = read(f, &buf, sizeof(buf));
close(f);
if (cc < WHDRSIZE)
return;
*(double *)call_data = buf.wd_loadav[0] / 100.0;
}
#endif /* RLOADSTUB */
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