[macruby-changes] [3150] MacRuby/trunk/sample-macruby/Scripts

[source_changes at macosforge.org]

Revision: 3150
          http://trac.macosforge.org/projects/ruby/changeset/3150
Author:   pthomson at apple.com
Date:     2009-12-22 15:07:23 -0800 (Tue, 22 Dec 2009)
Log Message:
-----------
Moved the GCD-related samples to their own directory.

Added Paths:
-----------
    MacRuby/trunk/sample-macruby/Scripts/gcd/
    MacRuby/trunk/sample-macruby/Scripts/gcd/futures.rb
    MacRuby/trunk/sample-macruby/Scripts/gcd/sleeping_barber.rb

Removed Paths:
-------------
    MacRuby/trunk/sample-macruby/Scripts/futures.rb
    MacRuby/trunk/sample-macruby/Scripts/sleeping_barber.rb

Deleted: MacRuby/trunk/sample-macruby/Scripts/futures.rb
===================================================================
--- MacRuby/trunk/sample-macruby/Scripts/futures.rb	2009-12-22 22:42:22 UTC (rev 3149)
+++ MacRuby/trunk/sample-macruby/Scripts/futures.rb	2009-12-22 23:07:23 UTC (rev 3150)
@@ -1,34 +0,0 @@
-#!/usr/local/bin/macruby
-
-# An implementation of futures (delayed computations) on top of GCD.
-# Original implementation written by Patrick Thomson.
-# Improvements made by Ben Stiglitz.
-
-include Dispatch
-
-class Future
-  def initialize(&block)
-    # Each thread gets its own FIFO queue upon which we will dispatch
-    # the delayed computation passed in the &block variable.
-    Thread.current[:futures] ||= Queue.new("org.macruby.futures-#{Thread.current.object_id}")
-    # Groups are just simple layers on top of semaphores.
-    @group = Group.new
-    # Asynchronously dispatch the future to the thread-local queue.
-    Thread.current[:futures].async(@group) { @value = block[] }
-  end
-  
-  def value
-    # Wait fo the computation to finish. If it has already finished, then
-    # just return the value in question.
-    @group.wait
-    @value
-  end
-end
-
-
-f = Future.new do
-  sleep 2.5
-  'some value'
-end
- 
-p f.value
\ No newline at end of file

Copied: MacRuby/trunk/sample-macruby/Scripts/gcd/futures.rb (from rev 3149, MacRuby/trunk/sample-macruby/Scripts/futures.rb)
===================================================================
--- MacRuby/trunk/sample-macruby/Scripts/gcd/futures.rb	                        (rev 0)
+++ MacRuby/trunk/sample-macruby/Scripts/gcd/futures.rb	2009-12-22 23:07:23 UTC (rev 3150)
@@ -0,0 +1,34 @@
+#!/usr/local/bin/macruby
+
+# An implementation of futures (delayed computations) on top of GCD.
+# Original implementation written by Patrick Thomson.
+# Improvements made by Ben Stiglitz.
+
+include Dispatch
+
+class Future
+  def initialize(&block)
+    # Each thread gets its own FIFO queue upon which we will dispatch
+    # the delayed computation passed in the &block variable.
+    Thread.current[:futures] ||= Queue.new("org.macruby.futures-#{Thread.current.object_id}")
+    # Groups are just simple layers on top of semaphores.
+    @group = Group.new
+    # Asynchronously dispatch the future to the thread-local queue.
+    Thread.current[:futures].async(@group) { @value = block[] }
+  end
+  
+  def value
+    # Wait fo the computation to finish. If it has already finished, then
+    # just return the value in question.
+    @group.wait
+    @value
+  end
+end
+
+
+f = Future.new do
+  sleep 2.5
+  'some value'
+end
+ 
+p f.value
\ No newline at end of file

Copied: MacRuby/trunk/sample-macruby/Scripts/gcd/sleeping_barber.rb (from rev 3149, MacRuby/trunk/sample-macruby/Scripts/sleeping_barber.rb)
===================================================================
--- MacRuby/trunk/sample-macruby/Scripts/gcd/sleeping_barber.rb	                        (rev 0)
+++ MacRuby/trunk/sample-macruby/Scripts/gcd/sleeping_barber.rb	2009-12-22 23:07:23 UTC (rev 3150)
@@ -0,0 +1,19 @@
+# A GCD-based implementation of the sleeping barber problem:
+#   http://en.wikipedia.org/wiki/Sleeping_barber_problem
+#   http://www.madebysofa.com/#blog/the_sleeping_barber
+
+waiting_chairs = Dispatch::Queue.new('com.apple.waiting_chairs')
+semaphore = Dispatch::Semaphore.new(3)
+index = -1
+while true
+  index += 1
+  success = semaphore.wait(Dispatch::TIME_NOW)
+  if success != 0
+    puts "Customer turned away #{index}"
+    next
+  end
+  waiting_chairs.dispatch do
+    semaphore.signal
+    puts "Shave and a haircut #{index}"
+  end
+end

Deleted: MacRuby/trunk/sample-macruby/Scripts/sleeping_barber.rb
===================================================================
--- MacRuby/trunk/sample-macruby/Scripts/sleeping_barber.rb	2009-12-22 22:42:22 UTC (rev 3149)
+++ MacRuby/trunk/sample-macruby/Scripts/sleeping_barber.rb	2009-12-22 23:07:23 UTC (rev 3150)
@@ -1,19 +0,0 @@
-# A GCD-based implementation of the sleeping barber problem:
-#   http://en.wikipedia.org/wiki/Sleeping_barber_problem
-#   http://www.madebysofa.com/#blog/the_sleeping_barber
-
-waiting_chairs = Dispatch::Queue.new('com.apple.waiting_chairs')
-semaphore = Dispatch::Semaphore.new(3)
-index = -1
-while true
-  index += 1
-  success = semaphore.wait(Dispatch::TIME_NOW)
-  if success != 0
-    puts "Customer turned away #{index}"
-    next
-  end
-  waiting_chairs.dispatch do
-    semaphore.signal
-    puts "Shave and a haircut #{index}"
-  end
-end
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