Futurist

An implementation of the future construct which uses Process forking to resolve its Promise. Promise evaluation is eager, and value resolution blocks until the Promise is resolved.

Note This implementation will only work on OSes which support process forking.

Installation

$ gem install futurist

or add this line to your application's Gemfile:

gem 'futurist'

And then execute:

$ bundle

Usage

Futures also allow you to background the computation of any block.

Create a future

The call to Futurist::Future#value will block until the result of executing the block is available. If an exception occurs during the block's execution, the call to future.value will reraise the same exception.

future = Futurist::Future.new { 3 + 2 }
future.value # blocks until value is available
=> 5

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake rspec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/indiebrain/futurist.