psp-csharp-01-procesos/03-ThreadSincro/Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _03_ThreadSincro
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private int[] numeros = new int[1000];
        int iterador;
        int numero;
        private void Button1_Click(object sender, EventArgs e)
        {
            iterador = 0;
            numero = 0;
            //creo
            Thread t1 = new Thread(this.rellena);
            Thread t2 = new Thread(this.rellena);
            Thread t3 = new Thread(this.rellena);
            Thread t4 = new Thread(this.rellena);
            Thread t5 = new Thread(this.rellena);

            //inicializar
            t1.Start();
            t2.Start();
            t3.Start();
            t4.Start();
            t5.Start();

            //espera
            t1.Join();
            t2.Join();
            t3.Join();
            t4.Join();
            t5.Join();
            
            for (int i = 0; i < 1000; i++)
            {
                Debug.WriteLine(numeros[i]);
            }
        }
        Object o = new object();
        private void rellena()
        {
            for (int i = 0; i < 200; i++)
            {
                lock (o)
                {
                    numero++;
                    numeros[iterador] = numero;
                    Thread.Sleep(50);
                    iterador++;
                }
            }
        }

        private void Button2_Click(object sender, EventArgs e)
        {
            Thread t1 = new Thread(this.rellenaM);
            Thread t2 = new Thread(this.leeM);
            t1.Start();
            t2.Start();
        }

        //método asociado al hilo productor
        private void rellenaM()
        {
            for (int i = 999; i >=0 ; i--)
            {
                numeros[i] = i;
                Thread.Sleep(5);
            }
            lock(this)
                Monitor.Pulse(this);
        }

        //método asociado al hilo consumidor
        private void leeM()
        {
            lock (this)
                Monitor.Wait(this);
            for (int i = 0; i < 1000; i++)
            {
                Debug.WriteLine(numeros[i]);   
            }
        }

        private void Button3_Click(object sender, EventArgs e)
        {
            Thread t1 = new Thread(this.Ping);
            Thread t2 = new Thread(this.Pong);
            t1.Start();
            t2.Start();

        }

        object o1 = new object();
        object o2 = new object();

        private void Ping()
        {
            
            for (int i = 0; i < 1000; i++)
            {
                lock (o2)
                    Monitor.Pulse(o2);
                lock (o1)
                {
                    Monitor.Wait(o1);
                    Debug.WriteLine("ping");
                }
            }
        }

        private void Pong()
        {
            for (int i = 0; i < 1000; i++)
            {
                lock (o1)
                    Monitor.Pulse(o1);
                lock (o2)
                {
                    Monitor.Wait(o2);
                    Debug.WriteLine("PONG");
                }
            }
        }

        private void Button4_Click(object sender, EventArgs e)
        {
            iterador = 0;
            numero = 0;
            //creo
            Thread t1 = new Thread(this.rellena);
            Thread t2 = new Thread(this.rellena);
            Thread t3 = new Thread(this.rellena);
            Thread t4 = new Thread(this.rellena);
            Thread t5 = new Thread(this.rellena);

            t1.IsBackground = true;
            t2.IsBackground = true;
            t3.IsBackground = true;
            t4.IsBackground = true;
            t5.IsBackground = true;
            
            //inicializar
            t1.Start();
            t2.Start();
            t3.Start();
            t4.Start();
            t5.Start();
            Debug.WriteLine(t1.ThreadState.ToString());

            Thread.Sleep(200);
            if (t1.IsAlive) Debug.WriteLine("xxxxxxxxxxxxxx");
            t1.Abort();
            if (t1.IsAlive) Debug.WriteLine("yyyyyyyyyyyyy");

        }

        private void Button5_Click(object sender, EventArgs e)
        {
            //de esta forma no funcionaría
            //Thread t1 = new Thread(this.EscribeText1);
            //t1.Start();

            Thread t1 = new Thread(this.EscribeText2);
            t1.Start();

        }

        private void EscribeText1()
        {
            this.textBox1.Text = "Hola";
        }

        delegate void DelegadoText();

        delegate void DelegadoTextParametros(string s);

        private void EscribeText2()
        {
            //invocación delegado sin parámetros
            DelegadoText dc1 = new DelegadoText(this.Escribir);
            this.Invoke(dc1);

            //invocación a un delgado con parámetros
            DelegadoTextParametros dc2 = new DelegadoTextParametros(this.Escribir2);
            this.Invoke(dc2, "hola con parámetros");
        }

        private void Escribir()
        {
            this.textBox1.Text = "TEXTO";
        }
        private void Escribir2(string s)
        {
            this.textBox2.Text = s;
        }
    }
}