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using System;
using System.Threading;
public class MyData {
private double _pi = 0.0;
private int _iterations = 0;
private bool _valueReady = false;
public void WriteData(int iterations, double val) {
lock (this) {
if (_valueReady) {
Monitor.Wait(this);
}
_pi = val;
_iterations = iterations;
_valueReady = true;
Monitor.Pulse(this);
}
}
public void ReadData(out int iterations, out double val) {
lock (this) {
if (!_valueReady) {
Monitor.Wait(this);
}
val = _pi;
iterations = _iterations;
_valueReady = false;
Monitor.Pulse(this);
}
}
}
class MyProducer {
private MyData _pi;
private int TotalIters;
public MyProducer(MyData pi, int iterations) {
_pi = pi;
TotalIters = iterations;
}
public Thread CreateProducerThread() {
return new Thread(new ThreadStart(this.calculate));
}
private void calculate() {
int iters = 1;
do {
iters += 4;
_pi.WriteData(iters, iters * 4);
} while (iters < TotalIters);
}
}
class MyConsumer {
private MyData _pi;
private int TotalIters;
public MyConsumer(MyData pi, int iterations) {
_pi = pi;
TotalIters = iterations;
}
public Thread CreateConsumerThread() {
return new Thread(new ThreadStart(this.printValues));
}
private void printValues() {
int iters = new int();
double pi = new double();
do {
_pi.ReadData(out iters, out pi);
System.Console.WriteLine("Iters: {0}\tPi: {1}",iters.ToString(), pi.ToString());
} while (iters < TotalIters);
}
}
class MainClass {
static void Main(string[] args) {
MyData pi = new MyData();
MyProducer prod = new MyProducer(pi, 100000);
Thread producerThread = prod.CreateProducerThread();
MyConsumer cons = new MyConsumer(pi, 100000);
Thread consumerThread = cons.CreateConsumerThread();
producerThread.Start();
consumerThread.Start();
producerThread.Join();
consumerThread.Join();
}
}
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