protected function listenForSignals()
    {
        pcntl_async_signals(true);

        pcntl_signal(SIGTERM, function () {
            $this->pendingSignals['terminate'] = 'terminate';
        });

        pcntl_signal(SIGUSR1, function () {
            $this->pendingSignals['restart'] = 'restart';
        });

        pcntl_signal(SIGUSR2, function () {
            $this->pendingSignals['pause'] = 'pause';
        });

        pcntl_signal(SIGCONT, function () {
            $this->pendingSignals['continue'] = 'continue';
        });
    }
protected function listenForSignals()
    {
        pcntl_async_signals(true);

        pcntl_signal(SIGTERM, function () {
            $this->pendingSignals['terminate'] = 'terminate';
        });

        pcntl_signal(SIGUSR1, function () {
            $this->pendingSignals['restart'] = 'restart';
        });

        pcntl_signal(SIGUSR2, function () {
            $this->pendingSignals['pause'] = 'pause';
        });

        pcntl_signal(SIGCONT, function () {
            $this->pendingSignals['continue'] = 'continue';
        });
    }
protected function listenForSignals ( ) { pcntl_async_signals ( true ) ; pcntl_signal ( SIGTERM , function ( ) { $ this -> pendingSignals [ 'terminate' ] = 'terminate' ; } ) ; pcntl_signal ( SIGUSR1 , function ( ) { $ this -> pendingSignals [ 'restart' ] = 'restart' ; } ) ; pcntl_signal ( SIGUSR2 , function ( ) { $ this -> pendingSignals [ 'pause' ] = 'pause' ; } ) ; pcntl_signal ( SIGCONT , function ( ) { $ this -> pendingSignals [ 'continue' ] = 'continue' ; } ) ; }
Listen for incoming process signals.

@return void
Listen for incoming process signals .