add an example script for the uloop lua binding

examples/uloop-example.lua

@@ -0,0 +1,44 @@
+#!/usr/bin/env lua
+
+local uloop = require("uloop")
+uloop.init()
+
+-- timer example 1
+local timer
+function t()
+	print("1000 ms timer run");
+	timer:set(1000)
+end
+timer = uloop.timer(t)
+timer:set(1000)
+
+-- timer example 2
+uloop.timer(function() print("2000 ms timer run"); end, 2000)
+
+-- timer example 3
+uloop.timer(function() print("3000 ms timer run"); end, 3000):cancel()
+
+-- process
+function p1(r)
+	print("Process 1 completed")
+	print(r)
+end
+
+function p2(r)
+	print("Process 2 completed")
+	print(r)
+end
+
+uloop.timer(
+	function()
+		uloop.process("uloop_pid_test.sh", {"foo", "bar"}, {"PROCESS=1"}, p1)
+	end, 1000
+)
+uloop.timer(
+	function()
+		uloop.process("uloop_pid_test.sh", {"foo", "bar"}, {"PROCESS=2"}, p2)
+	end, 2000
+)
+
+uloop.run()
+

examples/uloop_pid_test.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+echo $0 $* 
+echo Environment:
+env
+
+sleep 2
+
+echo "stopping child"
+
+exit 5