From: ko1@...
Date: 2020-11-12T01:19:46+00:00
Subject: [ruby-core:100806] [Ruby master Bug#17310] Closed ractors should die

Issue #17310 has been updated by ko1 (Koichi Sasada).


Ractor is designed to manage blocking operations by

* receive
* yield and take

and they can be multiplex with `Ractor.select`. I don't want to introduce more.

I think yielder/taker can communicate on the protocol which contains notification about the end of yielder.

----------------------------------------
Bug #17310: Closed ractors should die
https://bugs.ruby-lang.org/issues/17310#change-88448

* Author: marcandre (Marc-Andre Lafortune)
* Status: Closed
* Priority: Normal
* Assignee: ko1 (Koichi Sasada)
* ruby -v: ruby 3.0.0dev (2020-11-07T21:47:45Z master 2f12af42f7) [x86_64-darwin18]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
While backporting Ractors, I found this issue:

```ruby
10.times { Ractor.new { sleep(0.1) } }
sleep(1)
puts Ractor.count # => 1, ok
# but:
10.times { Ractor.new { sleep(0.1) }.close }
sleep(1)
Ractor.count # => 11, should be 1
```




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