gistfile1.txt

using UnityEngine;
using System;
using System.Threading;
using System.Collections;

public class Test : MonoBehaviour 
{
	private Queue queueCalc;
	private Queue queueMain;

	private System.Random random;

	void Awake () 
	{
		random = new System.Random ();

		queueCalc = Queue.Synchronized(new Queue());
		queueMain = Queue.Synchronized(new Queue());

		/*
		Thread thread = new Thread (new ThreadStart (run));
		thread.IsBackground = true;
		thread.Start ();
		*/
	}

	void Update () 
	{
		/*
		queueCalc.Enqueue (new Calculation(random.Next(1000), random.Next(1000)));

		int i = 0;
		while(queueMain.Count > 0)
		{
			i++;
			queueMain.Dequeue();
		}

		Debug.Log (i);
		*/
	}

	public void run()
	{
		while(true)
		{
			if(queueCalc.Count > 0)
			{
				Calculation c = (Calculation)queueCalc.Dequeue();
				c.c = c.a + c.b;
				queueMain.Enqueue(c);
			}
			else
			{
				Thread.Sleep(1);
			}
		}
	}
}

class Calculation
{
	public int a;
	public int b;
	public int c;

	public Calculation(int _a, int _b)
	{
		a = _a;
		b = _b;
		c = 0;
	}
}

https://code.msdn.microsoft.com/windowsdesktop/Producer-Consumer-inter-aeaa9578

https://msdn.microsoft.com/en-us/library/c5kehkcz.aspx

http://www.codeproject.com/Articles/1415/Introduction-to-TCP-client-server-in-C