1 files changed, 17 insertions, 0 deletions
diff --git a/ruby/threads1.rb b/ruby/threads1.rb
new file mode 100755
index 0000000..1136621
--- /dev/null
+++ b/ruby/threads1.rb
@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+require 'thread'
+
+
+a = []
+threads = []
+mutex = Mutex.new
+('a'..'r').each { |i|
+  threads << Thread.new(i) { |c|
+    mutex.synchronize { a << i }
+  }
+}
+threads.each { |t| t.join }
+
+puts a.to_s
+