From d8486dab000de228fdc861d6a42d1491beeee337 Mon Sep 17 00:00:00 2001
From: Leandro Lucarella <llucax@gmail.com>
Date: Wed, 29 Mar 2006 07:06:32 +0000
Subject: [PATCH] Concurrentes I.

---
 ej1.6.py     | 20 ++++++++++++++++++++
 ej1.9.py     | 23 +++++++++++++++++++++++
 minimo.py    | 37 +++++++++++++++++++++++++++++++++++++
 thread.java  | 24 ++++++++++++++++++++++++
 thread2.java | 26 ++++++++++++++++++++++++++
 5 files changed, 130 insertions(+)
 create mode 100755 ej1.6.py
 create mode 100755 ej1.9.py
 create mode 100644 minimo.py
 create mode 100644 thread.java
 create mode 100644 thread2.java

diff --git a/ej1.6.py b/ej1.6.py
new file mode 100755
index 0000000..d531082
--- /dev/null
+++ b/ej1.6.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# vim: set et sw=4 sts=4 ts=4
+
+import os, time, sys
+
+if __name__ == '__main__':
+    pid = os.fork()
+    if pid:
+        for i in xrange(100):
+            print "Soy el padre de", pid
+            time.sleep(0.011)
+        (pid, status) = os.waitpid(pid, 0)
+        print "Termino mi hijito", pid, "con estado", status
+        sys.exit(0)
+    else:
+        for i in xrange(100):
+            print "Soy el hijo!"
+            time.sleep(0.01)
+        sys.exit(1)
+
diff --git a/ej1.9.py b/ej1.9.py
new file mode 100755
index 0000000..c4eeee8
--- /dev/null
+++ b/ej1.9.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+# vim: set et sw=4 sts=4 ts=4
+
+import os, time, sys, random
+
+def fork_child():
+    pid = os.fork()
+    if not pid:
+        random.seed(time.time())
+        timeout = int(random.random() * 30)
+        # Hijo
+        print "HIJO: Voy a esperar", timeout, "segundos"
+        time.sleep(timeout)
+        sys.exit(timeout)
+
+if __name__ == '__main__':
+    for i in xrange(int(sys.argv[1])):
+        fork_child()
+    for i in xrange(int(sys.argv[1])):
+        (pid, status) = os.wait()
+        timeout = os.WEXITSTATUS(status)
+        print "PADRE: Termino", pid, "despues de esperar", timeout, "segundos"
+
diff --git a/minimo.py b/minimo.py
new file mode 100644
index 0000000..0685c8f
--- /dev/null
+++ b/minimo.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+from threading import Thread, Lock
+from sys import argv
+
+minimo = 0
+minimo_lock = Lock()
+
+class Worker(Thread):
+	def __init__(self, lista):
+		Thread.__init__(self)
+		self.lista = lista
+	def run(self):
+		for num in self.lista:
+			minimo_lock.acquire()
+			if num < minimo:
+				minimo = num
+			minimo_lock.release()
+
+cant = int(argv[1])
+lista = argv[2:]
+total = len(lista)
+size = total/cant
+workers = []
+
+print "Lista a ordenar:", lista
+
+for n in xrange(0, total-2):
+	w = Worker(lista[n*size:(n+1)*size])
+	workers.append(w)
+
+for w in workers:
+	w.start()
+
+for w in workers:
+	w.join()
+
diff --git a/thread.java b/thread.java
new file mode 100644
index 0000000..05ef25c
--- /dev/null
+++ b/thread.java
@@ -0,0 +1,24 @@
+
+// Programacion concurrente - Palma Mendez, Garrido Carrera, et al
+
+class ThreadHilo extends Thread
+{
+	String palabra;
+	public ThreadHilo(String frase)
+	{
+		palabra = frase;
+	}
+	public void run()
+	{
+			System.out.println(palabra);
+	}
+	static public void main(String[] args)
+	{
+		Thread a = new ThreadHilo("Pepe");
+		Thread b = new ThreadHilo("Juan");
+		a.start();
+		b.start();
+		System.out.println("Listo");
+	}
+}
+
diff --git a/thread2.java b/thread2.java
new file mode 100644
index 0000000..bee8e1c
--- /dev/null
+++ b/thread2.java
@@ -0,0 +1,26 @@
+
+public class ThreadCorrer
+{
+	String palabra;
+	public ThreadCorrer(String frase)
+	{
+		palabra = frase;
+	}
+	public void run()
+	{
+		for (int i = 0; i < 10; i++)
+			System.out.println(palabra);
+	}
+	public static void main(String args[])
+	{
+		ThreadCorrer a = new ThreadCorrer("Pepe");
+		ThreadCorrer b = new ThreadCorrer("Luis");
+		Thread t1 = new Thread(a);
+		Thread t2 = new Thread(b);
+		t1.start();
+		t2.start();
+		System.out.println("Listo!");
+	}
+}
+
+
-- 
2.43.0