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Move rrd handling functions into includes/rrdtool.inc.php; add backwards compatibility with file naming in old version of MIB-based polling

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Paul Gear
2015-11-15 18:01:09 +10:00
parent 1b0614ad87
commit 8a20ad4896
4 changed files with 71 additions and 37 deletions
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62
includes/rrdtool.inc.php
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@@ -296,7 +296,18 @@ function rrdtool_escape($string, $maxlength=null){
$result = str_replace(':', '\:', $result); # escape colons
return $result.' ';
} // rrdtool_escape
/*
* @return the name of the rrd file for $host's $extra component
* @param host Host name
* @param extra Components of RRD filename - will be separated with "-"
*/
function rrd_name($host, $extra, $exten = ".rrd") {
global $config;
$filename = safename(is_array($extra) ? implode("-", $extra) : $extra);
return implode("/", array($config['rrd_dir'], $host, $filename.$exten));
}
function rrdtool_tune($type, $filename, $max) {
@@ -314,4 +325,53 @@ function rrdtool_tune($type, $filename, $max) {
$options = "--maximum " . implode(":$max --maximum ", $fields). ":$max";
rrdtool('tune', $filename, $options);
}
}
} // rrdtool_tune
/*
* Please use this instead of creating & updating RRD files manually.
* @param device Device object - only 'hostname' is used at present
* @param name Array of rrdname components
* @param def Array of data definitions
* @param val Array of value definitions
*
*/
function rrd_create_update($device, $name, $def, $val, $step=300) {
global $config;
$rrd = rrd_name($device['hostname'], $name);
if (!is_file($rrd) && $def != null) {
// add the --step and the rra definitions to the array
$newdef = "--step $step ".implode(' ', $def).$config['rrd_rra'];
rrdtool_create($rrd, $newdef);
}
rrdtool_update($rrd, $val);
} // rrd_create_update
/*
* @return bool indicating existence of RRD file
* @param device Device object as used with rrd_create_update()
* @param name RRD name array as used with rrd_create_update() and rrd_name()
*/
function rrd_file_exists($device, $name)
{
return is_file(rrd_name($device['hostname'], $name));
} // rrd_file_exists
/*
* @return bool indicating rename success or failure
* @param device Device object as used with rrd_create_update()
* @param oldname RRD name array as used with rrd_create_update() and rrd_name()
* @param newname RRD name array as used with rrd_create_update() and rrd_name()
*/
function rrd_file_rename($device, $oldname, $newname)
{
$oldrrd = rrd_name($device['hostname'], $oldname);
$newrrd = rrd_name($device['hostname'], $newname);
return rename($oldrrd, $newrrd);
} // rrd_file_rename