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Alpha/Baker: load protocol constants lazily

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This avoids the baker refusing to start when the protocol alpha is not
yet activated.
This commit is contained in:
Raphaël Proust 2018-06-15 16:06:48 +08:00 committed by Grégoire Henry
parent 0fb25db95b
commit 8b73e812ac
1 changed files with 16 additions and 4 deletions
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20
src/proto_alpha/lib_delegate/client_baking_forge.ml
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@ -15,8 +15,12 @@ include Logging.Make(struct let name = "client.baking" end)
type state = {
genesis: Block_hash.t ;
index : Context.index ;
(* Only mutated once for caching/lazy initialisation *)
mutable delegates: public_key_hash list ;
constants : Constants.t ;
mutable constants : Constants.t option ;
(* truly mutable *)
mutable best: Client_baking_blocks.block_info ;
mutable future_slots:
(Time.t * (Client_baking_blocks.block_info * int * public_key_hash)) list ;
@ -500,6 +504,14 @@ let get_delegates cctxt state =
return delegates
| _ :: _ as delegates -> return delegates
let get_constants cctxt state =
match state.constants with
| None ->
Alpha_services.Constants.all cctxt (`Main, `Head 0) >>=? fun constants ->
state.constants <- Some constants;
return constants
| Some constants -> return constants
let insert_block
@ -595,8 +607,9 @@ let filter_invalid_operations (cctxt : #full) state block_info (operations : pac
| Ok () ->
let quota : Alpha_environment.Updater.quota list = Main.validation_passes in
(* This shouldn't happen *)
get_constants cctxt state >>=? fun constants ->
let endorsements =
List.sub (List.rev endorsements) state.constants.Constants.parametric.endorsers_per_block
List.sub (List.rev endorsements) constants.Constants.parametric.endorsers_per_block
in
let votes =
retain_operations_up_to_quota (List.rev votes) (List.nth quota 1).max_size in
@ -785,8 +798,7 @@ let create
| Some t -> t in
lwt_debug "Opening shell context" >>= fun () ->
Client_baking_simulator.load_context ~context_path >>= fun index ->
Alpha_services.Constants.all cctxt (`Main, `Head 0) >>=? fun constants ->
let state = create_state genesis_hash index delegates constants bi in
let state = create_state genesis_hash index delegates None bi in
check_error @@ insert_block cctxt ?max_priority state bi >>= fun () ->
(* main loop *)