Created
April 24, 2013 08:29
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| <?php | |
| define('KEXT_DELIMITER', " \t\n"); | |
| class KEXT { | |
| public $index; | |
| public $refs; | |
| public $size; | |
| public $wired; | |
| public $name; | |
| public static function formatBytes($bytes, $precision = 2) { | |
| $units = array('B', 'KB', 'MB', 'GB', 'TB'); | |
| $bytes = max($bytes, 0); | |
| $pow = floor(($bytes ? log($bytes) : 0) / log(1024)); | |
| $pow = min($pow, count($units) - 1); | |
| $bytes /= pow(1024, $pow); | |
| return round($bytes, $precision) . ' ' . $units[$pow]; | |
| } | |
| public function __construct($line) { | |
| $this->index = strtok($line, KEXT_DELIMITER); | |
| $this->refs = strtok(KEXT_DELIMITER); | |
| strtok(KEXT_DELIMITER); // Address | |
| $this->size = hexdec(strtok(KEXT_DELIMITER)); | |
| $this->wired = hexdec(strtok(KEXT_DELIMITER)); | |
| $this->name = trim(strtok("\n")); | |
| } | |
| public function __toString() { | |
| $size = self::formatBytes($this->size); | |
| $wired = self::formatBytes($this->wired); | |
| return "{$this->name}\t{$wired}\t{$size}\n"; | |
| } | |
| } | |
| $stat = `/usr/sbin/kextstat -l`; | |
| $lines = explode("\n", $stat); | |
| $kexts = array(); | |
| foreach ($lines as $line) { | |
| $kexts[] = new KEXT($line); | |
| } | |
| usort($kexts, function (KEXT $a, KEXT $b) { | |
| $prop = 'wired'; | |
| if ($a->$prop == $b->$prop) { | |
| return 0; | |
| } | |
| return ($a->$prop > $b->$prop) ? -1 : 1; // ORDER BY wired DESC | |
| }); | |
| $all_wired = 0; | |
| $all_size = 0; | |
| foreach ($kexts as $kext) { | |
| $all_wired += $kext->wired; | |
| $all_size += $kext->size; | |
| print $kext; | |
| } | |
| print 'KEXT WIRED: ' . KEXT::formatBytes($all_wired) . ' SIZE: ' . KEXT::formatBytes($all_size) . "\n"; |
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