Source file storage_costs.ml

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include Storage_costs_generated

(* The model for read accesses is the following:

   cost(path_length, read_bytes) = 200_000 + 5000 * path_length + 2 * read_bytes
*)
let read_access ~path_length ~read_bytes =
  let open Saturation_repr in
  let open S.Syntax in
  Gas_limit_repr.atomic_step_cost
  @@ safe_int 200_000
     + (safe_int 5000 * safe_int path_length)
     + (safe_int 2 * safe_int read_bytes)

(* The model for write accesses is the following:

   cost(written_bytes) = 200_000 + 4 * written_bytes
*)
let write_access ~written_bytes =
  let open Saturation_repr in
  let open S.Syntax in
  Gas_limit_repr.atomic_step_cost
  @@ (safe_int 200_000 + (safe_int 4 * safe_int written_bytes))

let list_key_values_traverse ~size = cost_List_key_values size