- Subject changed from File objects are currently shareable to File objects are currently shareable, as are other extension objects that shouldn't be.
The issue is with Ractor.make_shareable
The same issue occurs with Dir, Tempfile, IO objects, the ENV hash. StringIO and CSV have this problem too. Sockets I think have the issue.
For example, the issue with StringIO is that it needs an initialize_clone method that dup's the string. The underlying issue, though, is that it's a TypedData and doesn't
store its internals in instance variables to be checked by the sharing logic.
require 'stringio'
str = "string".dup
stringio = StringIO.new(str)
rs = 100.times.map do
Ractor.new do
strio = receive
p strio.string.object_id
p strio.string.frozen?
end
end
p stringio.string.object_id
rs.each do |r|
r.send(stringio)
end
rs.each(&:take)
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