type Callback is access function (D : Data_Type) return Boolean;
type Destroy_Callback is access procedure (D : in out Data_Type);
function Add
| ( | Cb | : Callback; |
| D | : Data_Type; | |
| Priority | : Idle_Priority := Priority_Default_Idle; | |
| Destroy | : Destroy_Callback := null) return Idle_Handler_Id; |