function boost_graph_cache_check($local_graph_id, $rra_id, $rrdtool_pipe, $graph_data_array, $return = true)
{
global $config;
/* include poller processing routinges */
include_once $config['library_path'] . '/poller.php';
/* suppressnwarnings */
if (defined('E_DEPRECATED')) {
error_reporting(E_ALL ^ E_DEPRECATED);
} else {
error_reporting(E_ALL);
}
/* install the boost error handler */
set_error_handler('boost_error_handler');
/* if we are just printing the rrd command return */
if (isset($graph_data_array['print_source'])) {
/* restore original error handler */
restore_error_handler();
return false;
}
/* if we want to view the error message, then don't show the cache */
if (isset($graph_data_array['output_type']) && $graph_data_array['output_type'] == RRDTOOL_OUTPUT_STDERR) {
/* restore original error handler */
restore_error_handler();
return false;
}
/* get the information to populate into the rrd files */
if (boost_check_correct_enabled()) {
/* before we make a graph, we need to check for rrd updates and perform them. */
$local_data_ids = db_fetch_assoc_prepared('SELECT DISTINCT
data_template_rrd.local_data_id
FROM graph_templates_item
INNER JOIN data_template_rrd
ON (graph_templates_item.task_item_id = data_template_rrd.id)
WHERE graph_templates_item.local_graph_id = ?
AND data_template_rrd.local_data_id > 0', array($local_graph_id));
/* first update the RRD files */
if (sizeof($local_data_ids)) {
$updates = 0;
foreach ($local_data_ids as $local_data_id) {
$updates += boost_process_poller_output(true, $local_data_id['local_data_id']);
}
if ($updates) {
/* restore original error handler */
restore_error_handler();
return false;
}
}
}
if (isset($_SESSION['sess_current_timespan'])) {
$timespan = $_SESSION['sess_current_timespan'];
} else {
$timespan = 0;
}
/* check the graph cache and use it if it is valid, otherwise turn over to
* cacti's graphing fucntions.
*/
if (read_config_option('boost_png_cache_enable') == 'on' && boost_determine_caching_state()) {
/* if timespan is greater than 1, it is a predefined, if it does not
* exist, it is the old fasioned MRTG type graph
*/
$cache_directory = read_config_option('boost_png_cache_directory');
if (strlen($cache_directory)) {
if (is_dir($cache_directory)) {
if (is_writable($cache_directory)) {
if ($rra_id > 0) {
$cache_file = $cache_directory . '/lgi_' . $data['local_graph_id'] . '_rrai_' . $data['rra_id'];
} else {
$cache_file = $cache_directory . '/lgi_' . $data['local_graph_id'] . '_rrai_' . $data['rra_id'] . '_tsi_' . $timespan;
}
if (isset($graph_data_array['graph_height'])) {
$cache_file .= '_height_' . $graph_data_array['graph_height'];
}
if (isset($graph_data_array['graph_width'])) {
$cache_file .= '_width_' . $graph_data_array['graph_width'];
}
if (isset($graph_data_array['graph_nolegend'])) {
$cache_file .= '_thumb.png';
} else {
$cache_file .= '.png';
}
if (file_exists($cache_file)) {
$mod_time = filemtime($cache_file);
$poller_interval = read_config_option('poller_interval');
if (!isset($poller_interval)) {
$poller_interval = '300';
}
if ($mod_time + $poller_interval > time()) {
if ($fileptr = fopen($cache_file, 'rb')) {
$output = fread($fileptr, filesize($cache_file));
fclose($fileptr);
/* restore original error handler */
restore_error_handler();
/* get access to the SNMP Cache of BOOST*/
$mc = new MibCache('CACTI-BOOST-MIB');
$mc->object('boostStatsTotalsImagesCacheReads')->count();
$mc->object('boostStatsLastUpdate')->set(time());
return $output;
} else {
if (read_config_option('log_verbosity') >= POLLER_VERBOSITY_DEBUG) {
cacti_log("Attempting to open cache file '{$cache_file}' failed", false, 'BOOST');
}
}
} else {
if (read_config_option('log_verbosity') >= POLLER_VERBOSITY_DEBUG) {
cacti_log("Boost Cache PNG Expired. Image '{$cache_file}' will be recreated", false, 'BOOST');
}
}
}
} else {
cacti_log('ERROR: Boost Cache Directory is not writable! Can not cache images', false, 'BOOST');
}
} else {
cacti_log('ERROR: Boost Cache Directory does not exist! Can not cache images', false, 'BOOST');
}
} else {
cacti_log('ERROR: Boost Cache Directory variable is not set! Can not cache images', false, 'BOOST');
}
}
/* restore original error handler */
restore_error_handler();
return false;
}
function boost_graph_cache_check($data)
{
global $config;
/* include poller processing routinges */
include_once $config["library_path"] . "/poller.php";
/* suppress warnings */
if (defined("E_DEPRECATED")) {
error_reporting(E_ALL ^ E_DEPRECATED);
} else {
error_reporting(E_ALL);
}
/* install the boost error handler */
set_error_handler("boost_error_handler");
/* process input parameters */
$local_graph_id = $data['local_graph_id'];
$rra_id = $data['rra_id'];
$rrdtool_pipe = $data['rrd_struc'];
$graph_data_array = $data['graph_data_array'];
/* if we are just printing the rrd command return */
if (isset($graph_data_array["print_source"])) {
/* restore original error handler */
restore_error_handler();
return FALSE;
}
/* if we want to view the error message, then don't show the cache */
if (isset($graph_data_array["output_type"]) && $graph_data_array["output_type"] == RRDTOOL_OUTPUT_STDERR) {
/* restore original error handler */
restore_error_handler();
return FALSE;
}
/* get the information to populate into the rrd files */
if (boost_check_correct_enabled()) {
/* before we make a graph, we need to check for rrd updates and perform them. */
$local_data_ids = db_fetch_assoc("SELECT DISTINCT\r\n\t\t\tdata_template_rrd.local_data_id\r\n\t\t\tFROM graph_templates_item\r\n\t\t\tINNER JOIN data_template_rrd\r\n\t\t\tON (graph_templates_item.task_item_id=data_template_rrd.id)\r\n\t\t\tWHERE graph_templates_item.local_graph_id='{$local_graph_id}'\r\n\t\t\tAND data_template_rrd.local_data_id > 0");
/* first update the RRD files */
if (sizeof($local_data_ids)) {
$updates = 0;
foreach ($local_data_ids as $local_data_id) {
$updates += boost_process_poller_output(TRUE, $local_data_id["local_data_id"]);
}
if ($updates) {
/* restore original error handler */
restore_error_handler();
return FALSE;
}
}
}
if (isset($_SESSION["sess_current_timespan"])) {
$timespan = $_SESSION["sess_current_timespan"];
} else {
$timespan = 0;
}
/* check the graph cache and use it if it is valid, otherwise turn over to
* cacti's graphing fucntions.
*/
if (read_config_option("boost_png_cache_enable") && boost_determine_caching_state()) {
/* if timespan is greater than 1, it is a predefined, if it does not
* exist, it is the old fasioned MRTG type graph
*/
$cache_directory = read_config_option("boost_png_cache_directory");
if (strlen($cache_directory)) {
if (is_dir($cache_directory)) {
if (is_writable($cache_directory)) {
if ($rra_id > 0) {
$cache_file = $cache_directory . "/lgi_" . $data["local_graph_id"] . "_rrai_" . $data["rra_id"];
} else {
$cache_file = $cache_directory . "/lgi_" . $data["local_graph_id"] . "_rrai_" . $data["rra_id"] . "_tsi_" . $timespan;
}
if (isset($graph_data_array["graph_height"])) {
$cache_file .= "_height_" . $graph_data_array["graph_height"];
}
if (isset($graph_data_array["graph_width"])) {
$cache_file .= "_width_" . $graph_data_array["graph_width"];
}
if (isset($graph_data_array["graph_nolegend"])) {
$cache_file .= "_thumb.png";
} else {
$cache_file .= ".png";
}
if (file_exists($cache_file)) {
$mod_time = filemtime($cache_file);
$poller_interval = read_config_option("poller_interval");
if (!isset($poller_interval)) {
$poller_interval = "300";
}
if ($mod_time + $poller_interval > time()) {
if ($fileptr = fopen($cache_file, "rb")) {
$data['return'] = fread($fileptr, filesize($cache_file));
fclose($fileptr);
/* restore original error handler */
restore_error_handler();
return $data;
} else {
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_DEBUG) {
cacti_log("Attempting to open cache file '{$cache_file}' failed", FALSE, "BOOST");
}
}
} else {
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_DEBUG) {
cacti_log("Boost Cache PNG Expired. Image '{$cache_file}' will be recreated", FALSE, "BOOST");
}
}
}
} else {
cacti_log("ERROR: Boost Cache Directory is not writable! Can not cache images", FALSE, "BOOST");
}
} else {
cacti_log("ERROR: Boost Cache Directory does not exist! Can not cache images", FALSE, "BOOST");
}
} else {
cacti_log("ERROR: Boost Cache Directory variable is not set! Can not cache images", FALSE, "BOOST");
}
}
/* restore original error handler */
restore_error_handler();
return FALSE;
}
function get_current_value($rra, $ds, $cdef = 0)
{
global $config;
/* get the information to populate into the rrd files */
if (function_exists("boost_check_correct_enabled") && boost_check_correct_enabled()) {
boost_process_poller_output(TRUE, $rra);
}
$last_time_entry = thold_rrd_last($rra);
// This should fix and 'did you really mean month 899 errors', this is because your RRD has not polled yet
if ($last_time_entry == -1) {
$last_time_entry = time();
}
$data_template_data = db_fetch_row("SELECT * FROM data_template_data WHERE local_data_id={$rra}");
$step = $data_template_data['rrd_step'];
// Round down to the nearest 100
$last_time_entry = intval($last_time_entry / 100) * 100 - $step;
$last_needed = $last_time_entry + $step;
$result = rrdtool_function_fetch($rra, trim($last_time_entry), trim($last_needed));
// Return Blank if the data source is not found (Newly created?)
if (!isset($result['data_source_names'])) {
return '';
}
$idx = array_search($ds, $result['data_source_names']);
// Return Blank if the value was not found (Cache Cleared?)
if (!isset($result['values'][$idx][0])) {
return '';
}
$value = $result['values'][$idx][0];
if ($cdef != 0) {
$value = thold_build_cdef($cdef, $value, $rra, $ds);
}
return round($value, 4);
}
