C++ (Cpp) obj_mark_black_in_table примеры использования

Пример #1

static void trace_object(Conclctor* marker, Partial_Reveal_Object *p_obj)
{
  scan_object(marker, p_obj);
  obj_mark_black_in_table(p_obj, marker);
  
  Vector_Block *trace_stack = marker->trace_stack;
  while(!vector_stack_is_empty(trace_stack)){
    p_obj = (Partial_Reveal_Object*)vector_stack_pop(trace_stack);
    scan_object(marker, p_obj);
    obj_mark_black_in_table(p_obj, marker);    
    trace_stack = marker->trace_stack;
  }
}

Пример #2

/*This function is for concurrent mark.*/
static void write_barrier_rem_obj_snapshot(Managed_Object_Handle p_obj_holding_ref)
{
  Mutator *mutator = (Mutator *)gc_get_tls();
  REF* p_obj_slot; 
  if(obj_need_take_snapshot((Partial_Reveal_Object*)p_obj_holding_ref)){
    if (object_is_array((Partial_Reveal_Object*)p_obj_holding_ref)) {
      Partial_Reveal_Object* array = (Partial_Reveal_Object*)p_obj_holding_ref;
      assert(!obj_is_primitive_array(array));

      Partial_Reveal_Object* obj_to_snapshot; 
      
      I_32 array_length = vector_get_length((Vector_Handle) array);
      for (int i = 0; i < array_length; i++) {
        p_obj_slot = (REF*)vector_get_element_address_ref((Vector_Handle) array, i);
        obj_to_snapshot = (Partial_Reveal_Object*)read_slot(p_obj_slot);
        if (obj_to_snapshot != NULL)  
          mutator_dirtyset_add_entry(mutator, obj_to_snapshot);
      }   
    }else{
      /* scan non-array object */
      Partial_Reveal_Object* p_obj =  (Partial_Reveal_Object*)p_obj_holding_ref;   
      unsigned int num_refs = object_ref_field_num(p_obj);
      int *ref_iterator = object_ref_iterator_init(p_obj);
      
      Partial_Reveal_Object* obj_to_snapshot; 

      for(unsigned int i=0; i<num_refs; i++){
        p_obj_slot = object_ref_iterator_get(ref_iterator+i, p_obj);        
        obj_to_snapshot = (Partial_Reveal_Object*)read_slot(p_obj_slot);
        if (obj_to_snapshot != NULL)  
          mutator_dirtyset_add_entry(mutator, obj_to_snapshot);
      }

      if(is_reference_obj(p_obj)){
        REF* p_referent_field = obj_get_referent_field(p_obj);
        obj_to_snapshot = (Partial_Reveal_Object*)read_slot(p_referent_field);
        if (obj_to_snapshot != NULL)  
          mutator_dirtyset_add_entry(mutator, obj_to_snapshot);
      }
    }
    obj_mark_gray_in_table((Partial_Reveal_Object *) p_obj_holding_ref);  // now, the black-only obj (no gray bit been set) will also be scaned by marker, here mark it to gray to prevent this, just a workaround
    obj_mark_black_in_table((Partial_Reveal_Object *) p_obj_holding_ref, mutator);
    obj_dirty_in_table((Partial_Reveal_Object *) p_obj_holding_ref);
  }
}