text: #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #include "log.h"
  #include "common.h"
  #include "appconfig.h"
  #include "procfile.h"
  #include "rrd.h"
  #include "plugin_proc.h"
  
  int do_proc_loadavg(int update_every, unsigned long long dt) {
  	static procfile *ff = NULL;
  	static int do_loadavg = -1, do_all_processes = -1;
  
  	if(dt) {};
  
  	if(!ff) {
  		char filename[FILENAME_MAX + 1];
  		snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/loadavg");
  		ff = procfile_open(config_get("plugin:proc:/proc/loadavg", "filename to monitor", filename), " \t,:|/", PROCFILE_FLAG_DEFAULT);
  	}
  	if(!ff) return 1;
  
  	ff = procfile_readall(ff);
  	if(!ff) return 0; // we return 0, so that we will retry to open it next time
  
  	if(do_loadavg == -1)		do_loadavg 			= config_get_boolean("plugin:proc:/proc/loadavg", "enable load average", 1);
  	if(do_all_processes == -1)	do_all_processes 	= config_get_boolean("plugin:proc:/proc/loadavg", "enable total processes", 1);
  
  	if(procfile_lines(ff) < 1) {
  		error("/proc/loadavg has no lines.");
  		return 1;
  	}
  	if(procfile_linewords(ff, 0) < 6) {
  		error("/proc/loadavg has less than 6 words in it.");
  		return 1;
  	}
  
  	double load1 = strtod(procfile_lineword(ff, 0, 0), NULL);
  	double load5 = strtod(procfile_lineword(ff, 0, 1), NULL);
  	double load15 = strtod(procfile_lineword(ff, 0, 2), NULL);
  
  	//unsigned long long running_processes	= strtoull(procfile_lineword(ff, 0, 3), NULL, 10);
  	unsigned long long active_processes		= strtoull(procfile_lineword(ff, 0, 4), NULL, 10);
  	//unsigned long long next_pid				= strtoull(procfile_lineword(ff, 0, 5), NULL, 10);
  
  
  	RRDSET *st;
  
  	// --------------------------------------------------------------------
  
  	if(do_loadavg) {
  		st = rrdset_find_byname("system.load");
  		if(!st) {
  			st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, update_every, RRDSET_TYPE_LINE);
  
  			rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
  			rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
  			rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
  		}
  		else rrdset_next(st);
  
  		rrddim_set(st, "load1", load1 * 1000);
  		rrddim_set(st, "load5", load5 * 1000);
  		rrddim_set(st, "load15", load15 * 1000);
  		rrdset_done(st);
  	}
  
  	// --------------------------------------------------------------------
  
  	if(do_all_processes) {
  		st = rrdset_find_byname("system.active_processes");
  		if(!st) {
  			st = rrdset_create("system", "active_processes", NULL, "processes", NULL, "System Active Processes", "processes", 750, update_every, RRDSET_TYPE_LINE);
  
  			rrddim_add(st, "active", NULL, 1, 1, RRDDIM_ABSOLUTE);
  		}
  		else rrdset_next(st);
  
  		rrddim_set(st, "active", active_processes);
  		rrdset_done(st);
  	}
  
  	return 0;
  }
  