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Shell: store metadata for block header and operations

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This commit is contained in:
Grégoire Henry 2018-04-16 00:44:20 +02:00 committed by Benjamin Canou
parent fc26022cd2
commit d7e5ca81e4
11 changed files with 105 additions and 23 deletions
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32
src/lib_shell/block_validator.ml
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@ -179,11 +179,17 @@ let apply_block
~predecessor_timestamp:pred_header.shell.timestamp
~predecessor_fitness:pred_header.shell.fitness
header >>=? fun state ->
fold_left_s (fold_left_s (fun state op ->
Proto.apply_operation state op >>=? fun (state, _metadata) ->
return state))
state parsed_operations >>=? fun state ->
Proto.finalize_block state >>=? fun (validation_result, _metadata) ->
fold_left_s
(fun (state, acc) ops ->
fold_left_s
(fun (state, acc) op ->
Proto.apply_operation state op >>=? fun (state, op_metadata) ->
return (state, op_metadata :: acc))
(state, []) ops >>=? fun (state, ops_metadata) ->
return (state, List.rev ops_metadata :: acc))
(state, []) parsed_operations >>=? fun (state, ops_metadata) ->
let ops_metadata = List.rev ops_metadata in
Proto.finalize_block state >>=? fun (validation_result, block_data) ->
Context.get_protocol validation_result.context >>= fun new_protocol ->
let expected_proto_level =
if Protocol_hash.equal new_protocol Proto.hash then
@ -219,7 +225,14 @@ let apply_block
validation_result.max_operations_ttl) in
let validation_result =
{ validation_result with max_operations_ttl } in
return validation_result
let block_data =
Data_encoding.Binary.to_bytes_exn Proto.block_header_metadata_encoding block_data in
let ops_metadata =
List.map
(List.map
(Data_encoding.Binary.to_bytes_exn Proto.operation_metadata_encoding))
ops_metadata in
return (validation_result, block_data, ops_metadata)
let check_chain_liveness chain_db hash (header: Block_header.t) =
let chain_state = Distributed_db.chain_state chain_db in
@ -271,9 +284,12 @@ let on_request
protect ?canceler begin fun () ->
apply_block
(Distributed_db.chain_state chain_db)
pred proto hash header operations >>=? fun result ->
pred proto hash
header operations >>=? fun (result, header_data, operations_data) ->
Distributed_db.commit_block
chain_db hash header operations result >>=? function
chain_db hash
header header_data operations operations_data
result >>=? function
| None -> assert false (* should not happen *)
| Some block -> return block
end

6
src/lib_shell/distributed_db.ml
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@ -796,10 +796,12 @@ let clear_block chain_db hash n =
Raw_operation_hashes.clear_all chain_db.operation_hashes_db.table hash n ;
Raw_block_header.Table.clear_or_cancel chain_db.block_header_db.table hash
let commit_block chain_db hash header operations result =
let commit_block chain_db hash
header header_data operations operations_data result =
assert (Block_hash.equal hash (Block_header.hash header)) ;
assert (List.length operations = header.shell.validation_passes) ;
State.Block.store chain_db.chain_state header operations result >>=? fun res ->
State.Block.store chain_db.chain_state
header header_data operations operations_data result >>=? fun res ->
clear_block chain_db hash header.shell.validation_passes ;
return res

3
src/lib_shell/distributed_db.mli
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@ -128,7 +128,8 @@ module Operation_hashes :
val commit_block:
chain_db ->
Block_hash.t ->
Block_header.t -> Operation.t list list ->
Block_header.t -> MBytes.t ->
Operation.t list list -> MBytes.t list list ->
Tezos_protocol_environment_shell.validation_result ->
State.Block.t option tzresult Lwt.t

39
src/lib_shell/state.ml
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@ -220,6 +220,7 @@ module Locked_block = struct
{ Store.Block.header ; message = Some "Genesis" ;
max_operations_ttl = 0 ; context ;
max_operation_data_length = 0 ;
metadata = MBytes.create 0 ;
} >>= fun () ->
Lwt.return header
@ -426,6 +427,7 @@ module Block = struct
let hash { hash } = hash
let header { contents = { header } } = header
let metadata { contents = { metadata } } = metadata
let chain_state { chain_state } = chain_state
let chain_id { chain_state = { chain_id } } = chain_id
let shell_header { contents = { header = { shell } } } = shell
@ -534,11 +536,23 @@ module Block = struct
let store
?(dont_enforce_context_hash = false)
chain_state block_header operations
chain_state block_header block_header_metadata
operations operations_metadata
{ Tezos_protocol_environment_shell.context ; message ;
max_operations_ttl ; max_operation_data_length } =
let bytes = Block_header.to_bytes block_header in
let hash = Block_header.hash_raw bytes in
fail_unless
(block_header.shell.validation_passes = List.length operations)
(failure "State.Block.store: invalid operations length") >>=? fun () ->
fail_unless
(block_header.shell.validation_passes = List.length operations_metadata)
(failure "State.Block.store: invalid operations_data length") >>=? fun () ->
fail_unless
(List.for_all2
(fun l1 l2 -> List.length l1 = List.length l2)
operations operations_metadata)
(failure "State.Block.store: inconstent operations and operations_data") >>=? fun () ->
(* let's the validator check the consistency... of fitness, level, ... *)
Shared.use chain_state.block_store begin fun store ->
Store.Block.Invalid_block.known store hash >>= fun known_invalid ->
@ -564,6 +578,7 @@ module Block = struct
max_operations_ttl ;
max_operation_data_length ;
context = commit ;
metadata = block_header_metadata ;
} in
Store.Block.Contents.store (store, hash) contents >>= fun () ->
let hashes = List.map (List.map Operation.hash) operations in
@ -576,8 +591,13 @@ module Block = struct
Store.Block.Operation_path.store (store, hash) i path)
hashes >>= fun () ->
Lwt_list.iteri_p
(fun i ops -> Store.Block.Operations.store (store, hash) i ops)
(fun i ops ->
Store.Block.Operations.store (store, hash) i ops)
operations >>= fun () ->
Lwt_list.iteri_p
(fun i ops ->
Store.Block.Operations_metadata.store (store, hash) i ops)
operations_metadata >>= fun () ->
(* Store predecessors *)
store_predecessors store hash >>= fun () ->
(* Update the chain state. *)
@ -637,6 +657,14 @@ module Block = struct
Lwt.return (ops, path)
end
let operations_metadata { chain_state ; hash ; contents } i =
if i < 0 || contents.header.shell.validation_passes <= i then
invalid_arg "State.Block.operations_metadata" ;
Shared.use chain_state.block_store begin fun store ->
Store.Block.Operations_metadata.read_exn (store, hash) i >>= fun ops ->
Lwt.return ops
end
let all_operations { chain_state ; hash ; contents } =
Shared.use chain_state.block_store begin fun store ->
Lwt_list.map_p
@ -644,6 +672,13 @@ module Block = struct
(0 -- (contents.header.shell.validation_passes - 1))
end
let all_operations_metadata { chain_state ; hash ; contents } =
Shared.use chain_state.block_store begin fun store ->
Lwt_list.map_p
(fun i -> Store.Block.Operations_metadata.read_exn (store, hash) i)
(0 -- (contents.header.shell.validation_passes - 1))
end
let context { chain_state ; hash } =
Shared.use chain_state.block_store begin fun block_store ->
Store.Block.Contents.read_exn (block_store, hash)

9
src/lib_shell/state.mli
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@ -94,8 +94,8 @@ module Block : sig
val store:
?dont_enforce_context_hash:bool ->
Chain.t ->
Block_header.t ->
Operation.t list list ->
Block_header.t -> MBytes.t ->
Operation.t list list -> MBytes.t list list ->
Tezos_protocol_environment_shell.validation_result ->
block option tzresult Lwt.t
@ -120,6 +120,7 @@ module Block : sig
val message: t -> string option
val max_operations_ttl: t -> int
val max_operation_data_length: t -> int
val metadata: t -> MBytes.t
val is_genesis: t -> bool
val predecessor: t -> block option Lwt.t
@ -138,6 +139,10 @@ module Block : sig
t -> int -> (Operation.t list * Operation_list_list_hash.path) Lwt.t
val all_operations: t -> Operation.t list list Lwt.t
val operations_metadata:
t -> int -> MBytes.t list Lwt.t
val all_operations_metadata: t -> MBytes.t list list Lwt.t
val watcher: Chain.t -> block Lwt_stream.t * Lwt_watcher.stopper
val known_ancestor:

20
src/lib_shell/store.ml
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@ -86,6 +86,7 @@ module Block = struct
max_operations_ttl: int ;
max_operation_data_length: int;
context: Context_hash.t ;
metadata: MBytes.t ;
}
module Contents =
@ -98,19 +99,20 @@ module Block = struct
let open Data_encoding in
conv
(fun { header ; message ; max_operations_ttl ;
max_operation_data_length ; context } ->
max_operation_data_length ; context ; metadata } ->
(message, max_operations_ttl,
max_operation_data_length, context, header))
max_operation_data_length, context, metadata, header ))
(fun (message, max_operations_ttl,
max_operation_data_length, context, header) ->
max_operation_data_length, context, metadata, header ) ->
{ header ; message ; max_operations_ttl ;
max_operation_data_length ;
context })
(obj5
context ; metadata })
(obj6
(opt "message" string)
(req "max_operations_ttl" uint16)
(req "max_operation_data_length" uint16)
(req "context" Context_hash.encoding)
(req "metadata" bytes)
(req "header" Block_header.encoding))
end))
@ -145,6 +147,14 @@ module Block = struct
let encoding = Data_encoding.(list (dynamic_size Operation.encoding))
end))
module Operations_metadata =
Operations_index.Make_map
(struct let name = ["metadata"] end)
(Store_helpers.Make_value(struct
type t = MBytes.t list
let encoding = Data_encoding.(list bytes)
end))
type invalid_block = {
level: int32 ;
errors: Error_monad.error list ;

6
src/lib_shell/store.mli
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@ -90,6 +90,7 @@ module Block : sig
max_operations_ttl: int ;
max_operation_data_length: int;
context: Context_hash.t ;
metadata: MBytes.t ;
}
module Contents : SINGLE_STORE
@ -111,6 +112,11 @@ module Block : sig
and type key = int
and type value = Operation.t list
module Operations_metadata : MAP_STORE
with type t = store * Block_hash.t
and type key = int
and type value = MBytes.t list
type invalid_block = {
level: int32 ;
errors: Error_monad.error list ;

4
src/lib_shell/test/test_locator.ml
View File

@ -82,6 +82,8 @@ let block_header
Block_header.protocol_data = MBytes.of_string "" ;
}
let zero = MBytes.create 0
(* adds n blocks on top of an initialized chain *)
let make_empty_chain (chain:State.Chain.t) n : Block_hash.t Lwt.t =
State.Block.read_exn chain genesis_hash >>= fun genesis ->
@ -106,7 +108,7 @@ let make_empty_chain (chain:State.Chain.t) n : Block_hash.t Lwt.t =
{ header with
shell = { header.shell with predecessor = pred ;
level = Int32.of_int lvl } } in
State.Block.store chain header [] empty_result >>=? fun _ ->
State.Block.store chain header zero [] [] empty_result >>=? fun _ ->
loop (lvl+1) (Block_header.hash header)
in
loop 1 genesis_hash >>= function

5
src/lib_shell/test/test_state.ml
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@ -83,6 +83,8 @@ let parsed_block ({ shell ; protocol_data } : Block_header.t) =
protocol_data in
({ shell ; protocol_data } : Proto.block_header)
let zero = MBytes.create 0
let build_valid_chain state vtbl pred names =
Lwt_list.fold_left_s
(fun pred name ->
@ -102,7 +104,8 @@ let build_valid_chain state vtbl pred names =
(* no operations *)
Proto.finalize_block vstate
end >>=? fun (ctxt, _metadata) ->
State.Block.store state block [[op]] ctxt >>=? fun _vblock ->
State.Block.store state
block zero [[op]] [[zero]] ctxt >>=? fun _vblock ->
State.Block.read state hash >>=? fun vblock ->
Hashtbl.add vtbl name vblock ;
return vblock

1
src/lib_shell/test/test_store.ml
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@ -85,6 +85,7 @@ let lolblock ?(operations = []) header =
context = Context_hash.zero } ;
protocol_data = MBytes.of_string header ;
} ;
metadata = MBytes.create 0 ;
max_operations_ttl = 0 ;
message = None ;
context = Context_hash.zero ;

1
src/proto_demo/lib_protocol/src/main.ml
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@ -28,6 +28,7 @@ type operation = {
let operation_data_encoding = Data_encoding.unit
type operation_metadata = unit
let operation_metadata_encoding = Data_encoding.unit
let max_operation_data_length = 42
let max_block_length = 42