fiber-local

Fiber::Local

A module to simplify fiber-local state.

Features

• Easily access fiber-local state from a fiber.
• Default to shared thread-local state.

Installation

$ bundle add fiber-local

Usage

In your own class, e.g. Logger:

class Logger
	extend Fiber::Local
	
	def initialize
		@buffer = []
	end
	
	def log(*arguments)
		@buffer << arguments
	end
end

Now, instead of instantiating your cache LOGGER = Logger.new, use Logger.instance. It will return a thread-local instance.

Thread.new do
	Logger.instance
	# => #<Logger:0x000055a14ec6be80>
end

Thread.new do
	Logger.instance
	# => #<Logger:0x000055a14ec597d0>
end

In cases where you have job per fiber or request per fiber, you might want to collect all log output for a specific fiber, you can do the following:

Logger.instance
# => #<Logger:0x000055a14ec6be80>

Fiber.new do
	Logger.instance = Logger.new
	# => #<Logger:0x000055a14ec597d0>
end

Contributing

We welcome contributions to this project.

1. Fork it.
2. Create your feature branch (git checkout -b my-new-feature).
3. Commit your changes (git commit -am 'Add some feature').
4. Push to the branch (git push origin my-new-feature).
5. Create new Pull Request.

Developer Certificate of Origin

This project uses the Developer Certificate of Origin. All contributors to this project must agree to this document to have their contributions accepted.

Contributor Covenant

This project is governed by the Contributor Covenant. All contributors and participants agree to abide by its terms.

See Also

• thread-local — Strictly thread-local variables.