Function mi_region_is_suitable

3rd/mimalloc-2.0.9/src/region.c:224–240

-----------------------------------------------------------------------------*/

static bool mi_region_is_suitable(const mem_region_t* region, int numa_node, bool allow_large ) {
  // initialized at all?
  mi_region_info_t info;
  info.value = mi_atomic_load_relaxed(&((mem_region_t*)region)->info);
  if (info.value==0) return false;

  // numa correct
  if (numa_node >= 0) {  // use negative numa node to always succeed
    int rnode = info.x.numa_node;
    if (rnode >= 0 && rnode != numa_node) return false;
  }

  // check allow-large
  if (!allow_large && info.x.is_large) return false;

  return true;
}


static bool mi_region_try_claim(int numa_node, size_t blocks, bool allow_large, mem_region_t** region, mi_bitmap_index_t* bit_idx, mi_os_tld_t* tld)