package com.ciklum.pp.msangel;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class TestThreadLock {
public static void main(String[] args) {
	System.out.println("Hi");
	//  в качестве монитора использую текущий поток - это не принцыпиально но удобно
	ExecutorService pool = Executors.newCachedThreadPool();
	final Thread monitor = Thread.currentThread();
	
	pool.execute(new Runnable() {
		public void run() {
			try {
				Thread.sleep(5l);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			// TODO: how to check - if monitor thread is waiting for our object or for another?
			while(monitor.getState()!=Thread.State.WAITING ){
				// System.out.println("Thread is not locked yet - will wait.");
				try {
					Thread.sleep(50l);
				} catch (InterruptedException e) { e.printStackTrace(); }
			}
			System.out.println("Second thread");
			synchronized (monitor) {
				monitor.notify();				
			}
		}
	});
	System.out.println("start");
	int a = 0;
	for(int i= Integer.MIN_VALUE; i<Integer.MAX_VALUE/10;i++){
		a += i;
	}
	
	System.out.println("end:"+a);

	try {
		synchronized (monitor) {
			monitor.wait();
		}
	} catch (InterruptedException e) {
		e.printStackTrace();
	}
	System.out.println("first thread");
	pool.shutdown();
}
}

			while(monitor.getState()!=Thread.State.WAITING && monitor.holdsLock(monitor)){
				// System.out.println("Thread is not locked yet - will wait.");
				try {
					Thread.sleep(50l);
				} catch (InterruptedException e) { e.printStackTrace(); }
			}