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2f50936cb9
Introduce new method Ractor.make_shareable(obj) which tries to make
obj shareable object. Protocol is here.
(1) If obj is shareable, it is shareable.
(2) If obj is not a shareable object and if obj can be shareable
object if it is frozen, then freeze obj. If obj has reachable
objects (rs), do rs.each{|o| Ractor.make_shareable(o)}
recursively (recursion is not Ruby-level, but C-level).
(3) Otherwise, raise Ractor::Error. Now T_DATA is not a shareable
object even if the object is frozen.
If the method finished without error, given obj is marked as
a sharable object.
To allow makng a shareable frozen T_DATA object, then set
`RUBY_TYPED_FROZEN_SHAREABLE` as type->flags. On default,
this flag is not set. It means user defined T_DATA objects are
not allowed to become shareable objects when it is frozen.
You can make any object shareable by setting FL_SHAREABLE flag,
so if you know that the T_DATA object is shareable (== thread-safe),
set this flag, at creation time for example. `Ractor` object is one
example, which is not a frozen, but a shareable object.
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| .. | ||
| pending.rb | ||
| runner.rb | ||
| test_attr.rb | ||
| test_autoload.rb | ||
| test_block.rb | ||
| test_class.rb | ||
| test_env.rb | ||
| test_eval.rb | ||
| test_exception.rb | ||
| test_fiber.rb | ||
| test_finalizer.rb | ||
| test_flip.rb | ||
| test_flow.rb | ||
| test_fork.rb | ||
| test_gc.rb | ||
| test_insns.rb | ||
| test_io.rb | ||
| test_jump.rb | ||
| test_literal.rb | ||
| test_literal_suffix.rb | ||
| test_load.rb | ||
| test_marshal.rb | ||
| test_massign.rb | ||
| test_method.rb | ||
| test_objectspace.rb | ||
| test_proc.rb | ||
| test_ractor.rb | ||
| test_string.rb | ||
| test_struct.rb | ||
| test_syntax.rb | ||
| test_thread.rb | ||