From 784af2138ddf5477db5a23d1ddd948437a744b2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Zurcher?= <jeremy@asynk.ch>
Date: Mon, 11 Jun 2012 22:55:28 +0200
Subject: improve hello_world example
---
examples/hello_world.rb | 37 +++++++++++++++++++++++++++++--------
1 file changed, 29 insertions(+), 8 deletions(-)
diff --git a/examples/hello_world.rb b/examples/hello_world.rb
index 69befd4..db5bdb6 100644
--- a/examples/hello_world.rb
+++ b/examples/hello_world.rb
@@ -1,25 +1,39 @@
#! /usr/bin/env ruby
# -*- coding: UTF-8 -*-
#
-# run from project top directory with : ruby -Ilib examples/hello_world.rb
+# from the project top directory :
+#
+# run this script which builds the example system and spin it untill it's empty:
+# $ ruby -Ilib examples/hello_world.rb
+#
+# or load the system from a JSON specification ( created with spin.hibernate! )
+# $ ruby -Ilib bin/edoors.rb -r examples/hello_world.rb examples/hello_world.json
#
require 'edoors'
#
class InputDoor < Edoors::Door
#
def start!
- # stimulate myself
+ # stimulate myself on system boot up
+ # if an action is set, but no destination is, it will be self.
+ # see Door#_send
send_p require_p(Edoors::Particle), Edoors::ACT_GET
end
#
def receive_p p
if p.action==Edoors::ACT_GET
+ # if desired (not needed here), call reset! to clear particle's data,
+ # meaning merge particle, payload, destinations
+ # see Particle#reset!
p.reset!
+ # manipulate the particle's payload
p.set_data 'txt', "hello world"
- send_p p # will follow the default link
+ # will follow the non conditional link.
+ # see Room#_send and Room#_try_links
+ send_p p
else
- puts p.action
- # we can release it or let the Door do it
+ # we can release it or let the Door do it.
+ # see Door#process_p
release_p p
end
end
@@ -29,21 +43,28 @@ end
class OutputDoor < Edoors::Door
#
def receive_p p
- puts p.get_data('txt')
- # let the door release it
+ if p.action!=Edoors::ACT_ERROR
+ puts p.get_data('txt')
+ end
+ # let the door release the particle
+ # see Door#process_p
end
#
end
#
if $0 == __FILE__
#
+ # This will schedule the particles and act as the top level Room
dom0 = Edoors::Spin.new 'dom0'
+ # This will feed a receive particle with data and send it back
input = InputDoor.new 'input', dom0
+ # This will output the receive data and let the system recycle the particle
output = OutputDoor.new 'output', dom0
+ # This will be the unconditinal link leading from 'input' to 'output'
dom0.add_link Edoors::Link.new('input', 'output', nil, nil, nil)
#
+ # schedule the spinning particles untill the system cools down
dom0.spin!
- dom0.hibernate!
#
end
#
--
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