laravel long pulling only allows 1 pull to be going at any time by utilizing the file system.

checkin.js

var Checkin = (function(window, document, undefined) {
  var s = {
		contact: {}
	},
	showing = false;

	function init() {
		bindVerify();
		bindDeny();
  	waitForMsg();
	}

	function bindDeny() {
		c.on('click', '[data-deny-contact]', function(){
			$.get('/focus/contact/deny', s.contact, function(){
				$('.verify-contact').slideUp('medium');
				toastr.success("Contact denied check-in.");
			});
		});
	}

	function bindVerify() {
		c.on('click', '[data-verify-contact]', function(){
			$.get('/focus/contact/verify', s.contact, function(){
				$('.verify-contact').slideUp('medium');
				toastr.success("Contact verified for check-in.");
			});
		});
	}

	function waitForMsg() {
		$.get('/focus/contact/verify', function(data){
			var view = viewVerify(data);
			s.contact = data;
			$('.verify-contact').show(0).html(view);

			setTimeout(function(){
				waitForMsg()
			}, 20000);
		});
	}

	function viewVerify(data) {
		var page = "<div class='alert alert-block text-center'> \
			<h4>Please Verify Patient At Check-in</h4> \
			<br> \
			" + data.first + " " + data.last + " | " + data.email + " | " + data.phone + " \
			<br> \
			<br> \
			<span class='btn btn-success' data-verify-contact>Verify</span> \
			<span class='btn btn-danger' data-deny-contact>Deny</span> \
		</div> \
		";

		return page;
	}

	init();

})(this, document);

longpull.php

public function get_checkin_poll()
	{
		$filepath = 'storage/work/checkin_poll_' . Auth::user()->id;
		$last_cycle = File::get($filepath);

		// if last cycle was > 40 secs continue
		$time_dif = time() - $last_cycle;
		Log::time($time_dif);
		if ($time_dif < 40) {
			Log::stop('');
			exit;
		}

		$thread = uniqid();
		while (1) {
			Log::cycle($thread);
			$user = User::find(Auth::user()->id);

			// if last actiiity was > 40 seconds stop
			$active_dif = time() - $user->activity_at;
			if ($active_dif < 40)
				exit;

			$contact = Contact::where_account_user_id(Auth::user()->account_user_id)
				->where_request(1)
				->first();

			if ($contact != null)
				break;

			// save time of last cycle
			File::put($filepath, time());
			sleep(2);
		}

		File::put($filepath, '');

		return Response::eloquent($contact);
	}