socketry / fiber-local

Fiber::Local

A module to simplify fiber-local state. This provides a convenient interface for providing a default per-thread instance, while allowing per-fiber overrides (e.g. per-request state handling).

Usage

Please see the project documentation for more details.

• Getting Started - This guide will explain how and why to use Fiber::Local to simplify fiber-local state.

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.

fiber-local's Issues

'fiber-storage' outputs warning: Fiber#storage has borked keys and is being monkey-patched.

Abstraction

From fluent/fluentd#4488.

Looks like fiber-local uses fiber-storage from v1.1.0.
fiber-storage outputs the following warning message when require:

Fiber#storage has borked keys and is being monkey-patched.

fiber-local v1.0 does not output this warning because it does not use fiber-storage.

Fluentd uses console gem, and console v1.25 uses fiber-local v1.1.
So, this warning message occurs every time when executing Fluentd.

Is this a bug of fiber-storage or fiber-local?
Or is there something wrong with the usage?

(I can't find fiber-storage GitHub repository: https://github.com/socketry/fiber-storage, so I have made this issue here.)

How to reproduce

Ruby: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]
OS: Ubuntu 20.04

fiber-storage:

$ gem install fiber-storage
$ gem list fiber-storage

*** LOCAL GEMS ***

fiber-storage (0.1.0)
$ ruby -e "require 'fiber/storage'"
Fiber#storage has borked keys and is being monkey-patched.

fiber-local:

$ gem install fiber-local -v 1.1.0
$ gem list fiber-local

*** LOCAL GEMS ***

fiber-local (1.1.0)
$ ruby -e "require 'fiber/local'"
Fiber#storage has borked keys and is being monkey-patched.
$ gem uninstall fiber-local -v 1.1.0
$ gem install fiber-local -v 1.0.0
$ gem list fiber-local

*** LOCAL GEMS ***

fiber-local (1.0.0)
$ ruby -e "require 'fiber/local'"
(no warning)

Fluentd:

$ git clone [email protected]:fluent/fluentd.git
$ cd fluentd
$ bundle
$ bundle exec gem list console

*** LOCAL GEMS ***

console (1.25.2)
$ bundle exec gem list fiber-local

*** LOCAL GEMS ***

fiber-local (1.1.0)
$ bundle exec fluentd --version
Fiber#storage has borked keys and is being monkey-patched.
fluentd 1.17.0