ihost/libstatgrab/load_stat.c

#include <stdio.h>
#include <stdlib.h>
#include "ukcprog.h"

char *get_load_stats(){

        double loadav[3];
        char *xml_load_out;
#ifdef OLDLINUX
        FILE *f;
        char *loadavg;
        char *load_p;
#endif

#ifdef OLDLINUX
        if ((f=fopen("/proc/loadavg", "r" ))==NULL) {
                errf("Failed to open load averages (%m)");
                return NULL;
        }

        if((fscanf(f,"%lf %lf %lf", &loadav[0], &loadav[1], &loadav[2])) != 3){
                errf("Failed to read in sufficent loads");
                return NULL;
        }

        if ((fclose(f)) != 0) {
                errf("Failed to close file (%m).");
                return NULL;
        }
#else
        if((getloadavg(loadav,3)) == -1){
                errf("Failed to get load averages (%m)");
        }
#endif

        xml_load_out=strf("<load><load1>%.2lf</load1><load5>%.2lf</load5><loag15>%.2lf</load15></load>", loadav[0], loadav[1], loadav[2]);

        return xml_load_out;
}
Revision:	1.3
Committed:	Mon May 13 12:51:26 2002 UTC (23 years, 5 months ago) by pajs
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+5 -2 lines
Log Message:	Added a extra bit of error checking. And also removed the silly \n on the return.
#	Content
1	#include <stdio.h>
2	#include <stdlib.h>
3	#include "ukcprog.h"
4
5	char *get_load_stats(){
6
7	double loadav[3];
8	char *xml_load_out;
9	#ifdef OLDLINUX
10	FILE *f;
11	char *loadavg;
12	char *load_p;
13	#endif
14
15	#ifdef OLDLINUX
16	if ((f=fopen("/proc/loadavg", "r" ))==NULL) {
17	errf("Failed to open load averages (%m)");
18	return NULL;
19	}
20
21	if((fscanf(f,"%lf %lf %lf", &loadav[0], &loadav[1], &loadav[2])) != 3){
22	errf("Failed to read in sufficent loads");
23	return NULL;
24	}
25
26	if ((fclose(f)) != 0) {
27	errf("Failed to close file (%m).");
28	return NULL;
29	}
30	#else
31	if((getloadavg(loadav,3)) == -1){
32	errf("Failed to get load averages (%m)");
33	}
34	#endif
35
36	xml_load_out=strf("<load><load1>%.2lf</load1><load5>%.2lf</load5><loag15>%.2lf</load15></load>", loadav[0], loadav[1], loadav[2]);
37
38	return xml_load_out;
39	}