tenderlove

Fibur

Fibur is a library that allows concurrency during Ruby I/O operations without needing to make use of callback systems. Traditionally in Ruby, to achieve concurrency during blocking I/O operations, programmers would make use of Fibers and callbacks. Fibur eliminates the need for wrapping your I/O calls with Fibers and a callback. It allows you to write your blocking I/O calls the way you normally would, and still have concurrent execution during those I/O calls.

Example

Say you have a method that fetches data from a network resource:

NARKOZ

# requires BSD sed
namespace :whitespace do
  desc 'Removes trailing whitespace'
  task :cleanup do
    sh %{for f in `find . -type f | grep -v .git | grep -v ./vendor | grep -v ./tmp | egrep ".(rb|js|haml|html|css|sass)"`;
          do sed -i '' 's/ *$//g' "$f";
        done}, {:verbose => false}
    puts "Task cleanup done"
  end