ligo/lib_embedded_client_alpha/client_proto_nonces.ml
2017-12-04 19:27:30 +01:00

53 lines
1.7 KiB
OCaml

(**************************************************************************)
(* *)
(* Copyright (c) 2014 - 2017. *)
(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* All rights reserved. No warranty, explicit or implicit, provided. *)
(* *)
(**************************************************************************)
(* TODO locking... *)
type t = (Block_hash.t * Nonce.t) list
let encoding : t Data_encoding.t =
let open Data_encoding in
list
(obj2
(req "block" Block_hash.encoding)
(req "nonce" Nonce.encoding))
let name = "nonces"
let load (wallet : #Client_commands.wallet) =
wallet#load ~default:[] name encoding
let save (wallet : #Client_commands.wallet) list =
wallet#write name list encoding
let mem (wallet : #Client_commands.wallet) block_hash =
load wallet >>|? fun data ->
List.mem_assoc block_hash data
let find wallet block_hash =
load wallet >>|? fun data ->
try Some (List.assoc block_hash data)
with Not_found -> None
let add wallet block_hash nonce =
load wallet >>=? fun data ->
save wallet ((block_hash, nonce) ::
List.remove_assoc block_hash data)
let del wallet block_hash =
load wallet >>=? fun data ->
save wallet (List.remove_assoc block_hash data)
let dels wallet hashes =
load wallet >>=? fun data ->
save wallet @@
List.fold_left
(fun data hash -> List.remove_assoc hash data)
data hashes