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call const_added after autoload

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When calling `const_added` while process in `autoload`, it can
cause synchronization issue because of a thread swithcing.

http://ci.rvm.jp/logfiles/brlog.trunk.20220407-152213#L489

```
1)
Module#autoload (concurrently) raises a LoadError in each thread if the file does not exist ERROR
NameError: uninitialized constant ModuleSpecs::Autoload::FileDoesNotExist

            ModuleSpecs::Autoload::FileDoesNotExist
                                 ^^^^^^^^^^^^^^^^^^
/tmp/ruby/v3/src/trunk/spec/ruby/core/module/autoload_spec.rb:965:in `block (5 levels) in <top (required)>'
```
This commit is contained in:
Koichi Sasada 2022-04-08 16:44:03 +09:00
parent 798e21637f
commit c77a31df5e
Notes: git 2022-04-08 21:30:52 +09:00 
Merged: https://github.com/ruby/ruby/pull/5780
1 changed files with 21 additions and 10 deletions
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17
variable.c
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@ -2239,6 +2239,9 @@ rb_autoload(VALUE mod, ID id, const char *file)
rb_autoload_str(mod, id, rb_fstring_cstr(file)); rb_autoload_str(mod, id, rb_fstring_cstr(file));
} }
static void const_set(VALUE klass, ID id, VALUE val);
static void const_added(VALUE klass, ID const_name);
void void
rb_autoload_str(VALUE mod, ID id, VALUE file) rb_autoload_str(VALUE mod, ID id, VALUE file)
{ {
@ -2263,7 +2266,7 @@ rb_autoload_str(VALUE mod, ID id, VALUE file)
return; return;
} }
rb_const_set(mod, id, Qundef); const_set(mod, id, Qundef);
tbl = RCLASS_IV_TBL(mod); tbl = RCLASS_IV_TBL(mod);
if (tbl && st_lookup(tbl, (st_data_t)autoload, &av)) { if (tbl && st_lookup(tbl, (st_data_t)autoload, &av)) {
tbl = check_autoload_table((VALUE)av); tbl = check_autoload_table((VALUE)av);
@ -2307,6 +2310,8 @@ rb_autoload_str(VALUE mod, ID id, VALUE file)
ccan_list_add_tail(&ele->constants, &ac->cnode); ccan_list_add_tail(&ele->constants, &ac->cnode);
st_insert(tbl, (st_data_t)id, (st_data_t)acv); st_insert(tbl, (st_data_t)id, (st_data_t)acv);
} }
const_added(mod, id);
} }
static void static void
@ -3111,8 +3116,8 @@ const_added(VALUE klass, ID const_name)
} }
} }
void static void
rb_const_set(VALUE klass, ID id, VALUE val) const_set(VALUE klass, ID id, VALUE val)
{ {
rb_const_entry_t *ce; rb_const_entry_t *ce;
@ -3175,6 +3180,12 @@ rb_const_set(VALUE klass, ID id, VALUE val)
} }
} }
} }
}
void
rb_const_set(VALUE klass, ID id, VALUE val)
{
const_set(klass, id, val);
const_added(klass, id); const_added(klass, id);
} }