function variable_bandwidth_summation($var_divisor, $var_type, $var_precision, $var_timespan, &$graph_item, &$graph_items, $graph_start, $graph_end, $rra_step, $ds_step) {
global $summation_cache;
require_once(CACTI_BASE_PATH . "/lib/graph/graph_utility.php");
if (is_numeric($var_timespan)) {
$summation_timespan_start = -$var_timespan;
}else{
$summation_timespan_start = $graph_start;
}
if ($var_type == "current") {
if (!isset($summation_cache{$graph_item["local_data_id"]})) {
$summation_cache{$graph_item["local_data_id"]} = bandwidth_summation($graph_item["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, $ds_step);
}
}elseif ($var_type == "total") {
for ($t=0; $t<count($graph_items); $t++) {
if ((!isset($summation_cache{$graph_items[$t]["local_data_id"]})) && (!empty($graph_items[$t]["local_data_id"]))) {
$summation_cache{$graph_items[$t]["local_data_id"]} = bandwidth_summation($graph_items[$t]["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, $ds_step);
}
}
}elseif ($var_type == "atomic") {
if (!isset($summation_cache{$graph_item["local_data_id"]})) {
$summation_cache{$graph_item["local_data_id"]} = bandwidth_summation($graph_item["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, 1);
}
}
$summation = 0;
/* format the output according to args passed to the variable */
if (($var_type == "current") || ($var_type == "atomic")) {
$summation = $summation_cache{$graph_item["local_data_id"]}{$graph_item["data_source_name"]};
}elseif ($var_type == "total") {
for ($t=0; $t<count($graph_items); $t++) {
if ((is_graph_item_type_primary($graph_items[$t]["graph_type_id"])) && (!empty($graph_items[$t]["data_template_rrd_id"]))) {
$local_summation = $summation_cache{$graph_items[$t]["local_data_id"]}{$graph_items[$t]["data_source_name"]};
$summation += $local_summation;
}
}
}
if (is_numeric($var_divisor)) {
$summation /= pow(10, intval($var_divisor));
}elseif ($var_divisor == "auto") {
if ($summation < 1000) {
$summation_label = "bytes";
}elseif ($summation < 1000000) {
$summation_label = "KB";
$summation /= 1000;
}elseif ($summation < 1000000000) {
$summation_label = "MB";
$summation /= 1000000;
}elseif ($summation < 1000000000000) {
$summation_label = "GB";
$summation /= 1000000000;
}else{
$summation_label = "TB";
$summation /= 1000000000000;
}
}
/* determine the floating point precision */
if (is_numeric($var_precision)) {
$round_to = $var_precision;
}else{
$round_to = 2;
}
/* substitute in the final result and round off to two decimal digits */
if (isset($summation_label)) {
return round($summation, $round_to) . " $summation_label";
}else{
return round($summation, $round_to);
}
}
function variable_bandwidth_summation(&$regexp_match_array, &$graph_item, &$graph_items, $graph_start, $graph_end, $rra_step, $ds_step) {
global $graph_item_types;
if (sizeof($regexp_match_array) == 0) {
return 0;
}
if (is_numeric($regexp_match_array[4])) {
$summation_timespan_start = -$regexp_match_array[4];
}else{
$summation_timespan_start = $graph_start;
}
if ($regexp_match_array[2] == "current") {
$summation_cache{$graph_item["local_data_id"]} = bandwidth_summation($graph_item["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, $ds_step);
}elseif ($regexp_match_array[2] == "total") {
for ($t=0;($t<count($graph_items));$t++) {
if (!empty($graph_items[$t]["local_data_id"])) {
$summation_cache{$graph_items[$t]["local_data_id"]} = bandwidth_summation($graph_items[$t]["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, $ds_step);
}
}
}elseif ($regexp_match_array[2] == "atomic") {
$summation_cache{$graph_item["local_data_id"]} = bandwidth_summation($graph_item["local_data_id"], $summation_timespan_start, $graph_end, $rra_step, 1);
}
$summation = 0;
/* format the output according to args passed to the variable */
if (($regexp_match_array[2] == "current") || ($regexp_match_array[2] == "atomic")) {
$summation = $summation_cache{$graph_item["local_data_id"]}{$graph_item["data_source_name"]};
}elseif ($regexp_match_array[2] == "total") {
for ($t=0;($t<count($graph_items));$t++) {
if ((ereg("(AREA|STACK|LINE[123])", $graph_item_types{$graph_items[$t]["graph_type_id"]})) && (!empty($graph_items[$t]["data_template_rrd_id"]))) {
$local_summation = $summation_cache{$graph_items[$t]["local_data_id"]}{$graph_items[$t]["data_source_name"]};
$summation += $local_summation;
}
}
}
if (preg_match("/\d+/", $regexp_match_array[1])) {
$summation /= pow(10,intval($regexp_match_array[1]));
}elseif ($regexp_match_array[1] == "auto") {
if ($summation < 1000) {
$summation_label = "bytes";
}elseif ($summation < 1000000) {
$summation_label = "KB";
$summation /= 1000;
}elseif ($summation < 1000000000) {
$summation_label = "MB";
$summation /= 1000000;
}elseif ($summation < 1000000000000) {
$summation_label = "GB";
$summation /= 1000000000;
}else{
$summation_label = "TB";
$summation /= 1000000000000;
}
}
/* determine the floating point precision */
if (is_numeric($regexp_match_array[3])) {
$round_to = $regexp_match_array[3];
}else{
$round_to = 2;
}
/* substitute in the final result and round off to two decimal digits */
if (isset($summation_label)) {
return round($summation, $round_to) . " $summation_label";
}else{
return round($summation, $round_to);
}
}
