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Update heap_pages_deferred_final atomically

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Nobuyoshi Nakada 2022-04-07 12:19:18 +09:00
parent 0b091fdac6
commit 5af507f527
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GPG key ID: 7CD2805BFA3770C6
Notes: git 2022-04-07 13:29:59 +09:00 
Merged: https://github.com/ruby/ruby/pull/5775
1 changed files with 14 additions and 9 deletions
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23
gc.c
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@ -3211,8 +3211,11 @@ make_zombie(rb_objspace_t *objspace, VALUE obj, void (*dfree)(void *), void *dat
zombie->basic.flags = T_ZOMBIE | (zombie->basic.flags & FL_SEEN_OBJ_ID);
zombie->dfree = dfree;
zombie->data = data;
zombie->next = heap_pages_deferred_final;
heap_pages_deferred_final = (VALUE)zombie;
VALUE prev, next = heap_pages_deferred_final;
do {
zombie->next = prev = next;
next = RUBY_ATOMIC_VALUE_CAS(heap_pages_deferred_final, prev, obj);
} while (next != prev);
struct heap_page *page = GET_HEAP_PAGE(obj);
page->final_slots++;
@ -4272,16 +4275,20 @@ finalize_list(rb_objspace_t *objspace, VALUE zombie)
}
static void
finalize_deferred(rb_objspace_t *objspace)
finalize_deferred_heap_pages(rb_objspace_t *objspace)
{
VALUE zombie;
rb_execution_context_t *ec = GET_EC();
ec->interrupt_mask |= PENDING_INTERRUPT_MASK;
while ((zombie = ATOMIC_VALUE_EXCHANGE(heap_pages_deferred_final, 0)) != 0) {
finalize_list(objspace, zombie);
}
}
static void
finalize_deferred(rb_objspace_t *objspace)
{
rb_execution_context_t *ec = GET_EC();
ec->interrupt_mask |= PENDING_INTERRUPT_MASK;
finalize_deferred_heap_pages(objspace);
ec->interrupt_mask &= ~PENDING_INTERRUPT_MASK;
}
@ -4410,9 +4417,7 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
gc_exit(objspace, gc_enter_event_finalizer, &lock_lev);
if (heap_pages_deferred_final) {
finalize_list(objspace, heap_pages_deferred_final);
}
finalize_deferred_heap_pages(objspace);
st_free_table(finalizer_table);
finalizer_table = 0;