forget Mutex/Condition for now, use Semaphore and Latch instead
treea1bc23007fa86aa15bc87e7ddef43b014451b0b7
-rw-r--r-- 48 .gitignore
-rw-r--r-- 2966 Rakefile
drwxr-xr-x - ext
drwxr-xr-x - java
drwxr-xr-x - lib
-rw-r--r-- 36162 setup.rb
drwxr-xr-x - test