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