PHP RRD::getDSFromRRDFile示例

 public function fillHardwareRRDData()
 {
     if (!$this->checkHardwareRRDFile()) {
         $this->createHardwareRRDFile();
     }
     $data = array();
     $data[] = time();
     $hardwareDS = RRD::getDSFromRRDFile($this->rrdHardwareFile);
     $tmphardware = array();
     foreach ($this->nodeHardware as $key => $value) {
         $hardKey = $this->hardwareMapper->addNameToMapping($key);
         if (!in_array($hardKey, $hardwareDS)) {
             $hardwareDS[] = $key;
             RRD::addDS2RRDFile($this->rrdHardwareFile, $hardKey, "GAUGE", 600, 0, "U");
         }
         $tmphardware[$hardKey] = $value;
     }
     foreach ($hardwareDS as $hard) {
         //echo $firm."\n";
         $data[] = $tmphardware[$hard];
     }
     $string = implode(":", $data);
     $ret = rrd_update($this->rrdHardwareFile, array($string));
     echo rrd_error();
 }