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# Threadsafe (Inactive, code moved to concurrent-ruby gem and repo.)

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A collection of thread-safe versions of common core Ruby classes.

__This code base is now part of the concurrent-ruby gem
at https://github.com/ruby-concurrency/concurrent-ruby.
The code in this repository is no longer maintained.__

## Installation

Add this line to your application's Gemfile:

    gem 'thread_safe'

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install thread_safe

## Usage

```ruby
require 'thread_safe'

sa = ThreadSafe::Array.new # supports standard Array.new forms
sh = ThreadSafe::Hash.new # supports standard Hash.new forms
```

`ThreadSafe::Cache` also exists, as a hash-like object, and should have
much better performance characteristics esp. under high concurrency than
`ThreadSafe::Hash`. However, `ThreadSafe::Cache` is not strictly semantically
equivalent to a ruby `Hash` -- for instance, it does not necessarily retain
ordering by insertion time as `Hash` does. For most uses it should do fine
though, and we recommend you consider `ThreadSafe::Cache` instead of
`ThreadSafe::Hash` for your concurrency-safe hash needs. It understands some
options when created (depending on your ruby platform) that control some of the
internals - when unsure just leave them out:


```ruby
require 'thread_safe'

cache = ThreadSafe::Cache.new
```

## Contributing

1. Fork it
2. Clone it (`git clone [email protected]:you/thread_safe.git`)
3. Create your feature branch (`git checkout -b my-new-feature`)
4. Build the jar (`rake jar`) NOTE: Requires JRuby
5. Install dependencies (`bundle install`)
6. Commit your changes (`git commit -am 'Added some feature'`)
7. Push to the branch (`git push origin my-new-feature`)
8. Create new Pull Request