[#104307] Float truncate — Eustáquio Rangel <eustaquiorangel@...>
Hi!
4 messages
2021/06/16
[ruby-core:104263] [Ruby master Bug#17986] Ractor is stdlib Socket unfriendly
From:
kvokka@...
Date:
2021-06-15 01:37:39 UTC
List:
ruby-core #104263
Issue #17986 has been reported by kvokka (Mike Beliakov).
----------------------------------------
Bug #17986: Ractor is stdlib Socket unfriendly
https://bugs.ruby-lang.org/issues/17986
* Author: kvokka (Mike Beliakov)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38) [x86_64-darwin19]
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
**Description**
In the process of playing with Ractors was found, that there is no way to use stdlib Sockets.
My intent was to implement bidirectional connection with Socket using Ractors.
This small console snippet is self explanatory:
```ruby
[1] pry(main)> s=Ractor.make_shareable(TCPSocket.open('localhost', 9100))
=> #<TCPSocket:fd 14, AF_INET6, ::1, 52292>
[2] pry(main)> s.print 'foo'
FrozenError: can't modify frozen TCPSocket: #<TCPSocket:fd 14, AF_INET6, ::1, 52292>
from (pry):5:in `write'
[3] pry(main)> s=Ractor.make_shareable(TCPSocket.open('localhost', 9100), copy: true)
=> #<TCPSocket:fd 16, AF_INET6, ::1, 52295>
[4] pry(main)> s.print 'foo'
FrozenError: can't modify frozen TCPSocket: #<TCPSocket:fd 16, AF_INET6, ::1, 52295>
```
The only option is to `move` socket in Ractor, but in this case there is no way to share
the socket between 2 Ractors, so I can not put a listener loop on the socket.
--
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