protected function hasSystemCallBeenInterrupted()
    {
        $lastError = $this->lastError;
        $this->lastError = null;

        // stream_select returns false when the `select` system call is interrupted by an incoming signal
        return null !== $lastError && false !== stripos($lastError, 'interrupted system call');
    }
protected function hasSystemCallBeenInterrupted()
    {
        $lastError = $this->lastError;
        $this->lastError = null;

        // stream_select returns false when the `select` system call is interrupted by an incoming signal
        return null !== $lastError && false !== stripos($lastError, 'interrupted system call');
    }
protected function hasSystemCallBeenInterrupted ( ) { $ lastError = $ this -> lastError ; $ this -> lastError = null ; // stream_select returns false when the `select` system call is interrupted by an incoming signal return null !== $ lastError && false !== stripos ( $ lastError , 'interrupted system call' ) ; }
Returns true if a system call has been interrupted.

@return bool
Returns true if a system call has been interrupted .