package tezos-protocol-alpha

You can search for identifiers within the package.
in-package search v0.2.0
tezos-protocol-alpha
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source
Source file `sc_rollup_commitment_storage.ml`

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2022 Nomadic Labs <contact@nomadic-labs.com>                *)
(* Copyright (c) 2022 TriliTech <contact@trili.tech>                         *)
(*                                                                           *)
(* 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.                                                 *)
(*                                                                           *)
(*****************************************************************************)

open Sc_rollup_errors
module Store = Storage.Sc_rollup
module Commitment = Sc_rollup_commitment_repr
module Commitment_hash = Commitment.Hash

let get_commitment_opt_unsafe ctxt rollup commitment =
  let open Lwt_result_syntax in
  let* ctxt, res = Store.Commitments.find (ctxt, rollup) commitment in
  return (res, ctxt)

let get_commitment_unsafe ctxt rollup commitment =
  let open Lwt_result_syntax in
  let* res, ctxt = get_commitment_opt_unsafe ctxt rollup commitment in
  match res with
  | None -> tzfail (Sc_rollup_unknown_commitment commitment)
  | Some commitment -> return (commitment, ctxt)

let last_cemented_commitment ctxt rollup =
  let open Lwt_result_syntax in
  let* ctxt, res = Store.Last_cemented_commitment.find ctxt rollup in
  match res with
  | None -> tzfail (Sc_rollup_does_not_exist rollup)
  | Some lcc -> return (lcc, ctxt)

let get_commitment ctxt rollup commitment =
  let open Lwt_result_syntax in
  (* Assert that a last cemented commitment exists. *)
  let* _lcc, ctxt = last_cemented_commitment ctxt rollup in
  get_commitment_unsafe ctxt rollup commitment

let last_cemented_commitment_hash_with_level ctxt rollup =
  let open Lwt_result_syntax in
  let* commitment_hash, ctxt = last_cemented_commitment ctxt rollup in
  let+ {inbox_level; _}, ctxt =
    get_commitment_unsafe ctxt rollup commitment_hash
  in
  (commitment_hash, inbox_level, ctxt)

let set_commitment_added ctxt rollup node new_value =
  let open Lwt_result_syntax in
  let* ctxt, res = Store.Commitment_added.find (ctxt, rollup) node in
  match res with
  | Some old_value ->
      (* No need to re-add the read value *)
      return (0, old_value, ctxt)
  | None ->
      let* ctxt, size_diff, _was_bound =
        Store.Commitment_added.add (ctxt, rollup) node new_value
      in
      return (size_diff, new_value, ctxt)

let get_predecessor_opt_unsafe ctxt rollup node =
  let open Lwt_result_syntax in
  let* commitment, ctxt = get_commitment_opt_unsafe ctxt rollup node in
  return (Option.map (fun (c : Commitment.t) -> c.predecessor) commitment, ctxt)

let check_if_commitments_are_related ctxt rollup ~descendant ~ancestor =
  let open Lwt_result_syntax in
  let rec aux ctxt current_commitment_hash =
    if Commitment_hash.(current_commitment_hash = ancestor) then
      return (true, ctxt)
    else
      let* predecessor_commitment_opt, ctxt =
        get_predecessor_opt_unsafe ctxt rollup current_commitment_hash
      in
      match predecessor_commitment_opt with
      | None -> return (false, ctxt)
      | Some cch -> (aux [@ocaml.tailcall]) ctxt cch
  in
  aux ctxt descendant

let hash ctxt commitment =
  let open Result_syntax in
  let* ctxt =
    Raw_context.consume_gas
      ctxt
      Sc_rollup_costs.Constants.cost_serialize_commitment
  in
  let commitment_bytes_opt =
    Data_encoding.Binary.to_bytes_opt
      Sc_rollup_commitment_repr.encoding
      commitment
  in
  let* commitment_bytes =
    Option.to_result
      ~none:(trace_of_error Sc_rollup_bad_commitment_serialization)
      commitment_bytes_opt
  in
  let bytes_len = Bytes.length commitment_bytes in
  let* ctxt =
    Raw_context.consume_gas ctxt (Sc_rollup_costs.cost_hash_bytes ~bytes_len)
  in
  return (ctxt, Sc_rollup_commitment_repr.Hash.hash_bytes [commitment_bytes])

module Internal_for_tests = struct
  let get_cemented_commitments_with_levels ctxt rollup =
    let open Lwt_result_syntax in
    let rec aux ctxt commitments_with_levels commitment_hash =
      let* commitment_opt, ctxt =
        get_commitment_opt_unsafe ctxt rollup commitment_hash
      in
      match commitment_opt with
      | None -> return (commitments_with_levels, ctxt)
      | Some {predecessor; inbox_level; _} ->
          (aux [@ocaml.tailcall])
            ctxt
            ((commitment_hash, inbox_level) :: commitments_with_levels)
            predecessor
    in
    let* lcc_hash, ctxt = last_cemented_commitment ctxt rollup in
    let+ commitments_with_levels, ctxt = aux ctxt [] lcc_hash in
    (commitments_with_levels, ctxt)
end
package tezos-protocol-alpha

Source file sc_rollup_commitment_storage.ml

Source file `sc_rollup_commitment_storage.ml`
