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ensure thread delayed freeing is correct during heap_absorb; #204

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daan 2020-02-13 13:12:19 -08:00
parent af37302e83
commit e981e9227e
3 changed files with 9 additions and 2 deletions
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5
src/page-queue.c
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@ -329,6 +329,7 @@ static void mi_page_queue_enqueue_from(mi_page_queue_t* to, mi_page_queue_t* fro
mi_page_set_in_full(page, mi_page_queue_is_full(to));
}
// Only called from `mi_heap_absorb`.
size_t _mi_page_queue_append(mi_heap_t* heap, mi_page_queue_t* pq, mi_page_queue_t* append) {
mi_assert_internal(mi_heap_contains_queue(heap,pq));
mi_assert_internal(pq->block_size == append->block_size);
@ -339,6 +340,10 @@ size_t _mi_page_queue_append(mi_heap_t* heap, mi_page_queue_t* pq, mi_page_queue
size_t count = 0;
for (mi_page_t* page = append->first; page != NULL; page = page->next) {
mi_page_set_heap(page,heap);
// set it to delayed free (not overriding NEVER_DELAYED_FREE) which has as a
// side effect that it spins until any DELAYED_FREEING is finished. This ensures
// that after appending only the new heap will be used for delayed free operations.
_mi_page_use_delayed_free(page, MI_USE_DELAYED_FREE, false);
count++;
}