Function _mi_segment_page_alloc

3rd/mimalloc-2.0.9/src/segment.c:1598–1605

----------------------------------------------------------- Page allocation and free ----------------------------------------------------------- */

   Page allocation and free
----------------------------------------------------------- */
mi_page_t* _mi_segment_page_alloc(mi_heap_t* heap, size_t block_size, size_t page_alignment, mi_segments_tld_t* tld, mi_os_tld_t* os_tld) {
  mi_page_t* page;
  if mi_unlikely(page_alignment > MI_ALIGNMENT_MAX) {
    mi_assert_internal(_mi_is_power_of_two(page_alignment));
    mi_assert_internal(page_alignment >= MI_SEGMENT_SIZE);
    if (page_alignment < MI_SEGMENT_SIZE) { page_alignment = MI_SEGMENT_SIZE; }
    page = mi_segment_huge_page_alloc(block_size,page_alignment,heap->arena_id,tld,os_tld);
  }
  else if (block_size <= MI_SMALL_OBJ_SIZE_MAX) {
    page = mi_segments_page_alloc(heap,MI_PAGE_SMALL,block_size,block_size,tld,os_tld);
  }