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(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
type t = Int64.t
type period = t
include (Compare.Int64 : Compare.S with type t := t)
let encoding = Data_encoding.int64
let rpc_arg = RPC_arg.int64
let pp ppf v = Format.fprintf ppf "%Ld" v
type error += (* `Permanent *)
Malformed_period | Invalid_arg
let () =
let open Data_encoding in
(* Malformed period *)
register_error_kind
`Permanent
~id:"malformed_period"
~title:"Malformed period"
~description:"Period is negative."
~pp:(fun ppf () -> Format.fprintf ppf "Malformed period")
empty
(function Malformed_period -> Some () | _ -> None)
(fun () -> Malformed_period) ;
(* Invalid arg *)
register_error_kind
`Permanent
~id:"invalid_arg"
~title:"Invalid arg"
~description:"Negative multiple of periods are not allowed."
~pp:(fun ppf () -> Format.fprintf ppf "Invalid arg")
empty
(function Invalid_arg -> Some () | _ -> None)
(fun () -> Invalid_arg)
let of_seconds t =
if Compare.Int64.(t >= 0L) then ok t else error Malformed_period
let to_seconds t = t
let of_seconds_exn t =
match of_seconds t with
| Ok t ->
t
| _ ->
invalid_arg "Period.of_seconds_exn"
let mult i p =
(* TODO check overflow *)
if Compare.Int32.(i < 0l) then error Invalid_arg
else ok (Int64.mul (Int64.of_int32 i) p)
let zero = of_seconds_exn 0L
let one_second = of_seconds_exn 1L
let one_minute = of_seconds_exn 60L
let one_hour = of_seconds_exn 3600L