65     private $fallbackStatus = [];  variable in Symfony\\Component\\Process\\Process
361             $this->fallbackStatus['pid'] = (int) fgets($this->processPipes->pipes[3]);
479                 } elseif (!isset($this->fallbackStatus['signaled'])) {
480                     $this->fallbackStatus['exitcode'] = (int) $data;
936             if (isset($this->fallbackStatus['pid'])) {
937                 unset($this->fallbackStatus['pid']);
1364         if ($this->fallbackStatus && $this->isSigchildEnabled()) {
1365             $this->processInformation = $this->fallbackStatus + $this->processInformation;
1445             } elseif (!isset($this->fallbackStatus['signaled'])) {
1446                 $this->fallbackStatus['exitcode'] = (int) $data;
1491         $this->fallbackStatus = [];
1549         $this->fallbackStatus['signaled'] = true;
1550         $this->fallbackStatus['exitcode'] = -1;
1551         $this->fallbackStatus['termsig'] = $this->latestSignal;