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freeze Encoding objects

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Encoding objects can be accessed in multi-ractors and there is no
state to mutate. So we can mark it as frozen and shareable.
[Bug #17188]
This commit is contained in:
Koichi Sasada 2020-10-14 02:10:54 +09:00
parent 11c2f0f36c
commit 102c2ba65f
Notes: git 2020-10-14 14:02:33 +09:00 
Merged: https://github.com/ruby/ruby/pull/3654
1 changed files with 4 additions and 1 deletions
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5
encoding.c
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@ -122,7 +122,10 @@ rb_data_is_encoding(VALUE obj)
static VALUE
enc_new(rb_encoding *encoding)
{
return TypedData_Wrap_Struct(rb_cEncoding, &encoding_data_type, (void *)encoding);
VALUE enc = TypedData_Wrap_Struct(rb_cEncoding, &encoding_data_type, (void *)encoding);
rb_obj_freeze(enc);
FL_SET_RAW(enc, RUBY_FL_SHAREABLE);
return enc;
}
static void