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<?php
class SystemStatus
{
/**
* Collect status about the disk and vmstore.
* The *Usage vars are filled with arrays with keys mountPoint, fileSystem,
* usedPercent, sizeKb, freeKb.
* @param array|false $systemUsage
* @param array|false $storeUsage
* @param string|false $currentSource What's currently mounted as vmstore
* @param string|false $wantedSource What should be mounted as vmstore (false if nothing configured)
* @return bool false if querying fs data from taskmanager failed
*/
public static function diskStat(&$systemUsage, &$storeUsage, &$currentSource = false, &$wantedSource = false)
{
$task = Taskmanager::submit('DiskStat');
if ($task === false)
return false;
$task = Taskmanager::waitComplete($task, 3000);
if (!isset($task['data']['list']) || empty($task['data']['list']))
return false;
$wantedSource = Property::getVmStoreUrl();
$currentSource = false;
$storeUsage = false;
$systemUsage = false;
if ($wantedSource === '<local>') {
$storePoint = '/';
} else {
$storePoint = CONFIG_VMSTORE_DIR;
}
// Collect free space information
foreach ($task['data']['list'] as $entry) {
// StorePoint is either the atual directory of the vmstore, or / if we use internal storage
if ($entry['mountPoint'] === $storePoint) {
$storeUsage = $entry;
}
// Always report free space on system disk
if ($entry['mountPoint'] === '/') {
$systemUsage = $entry;
}
// Record what's mounted at destination, regardless of config, to indicate something is wrong
if (($currentSource === false && $wantedSource === '<local>' && $entry['mountPoint'] === '/')
|| $entry['mountPoint'] === CONFIG_VMSTORE_DIR) {
$currentSource = $entry['fileSystem'];
}
}
return true;
}
}
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