octez-protocol-alpha-libs 20.1

type block = {

rpc_context : Tezos_protocol_environment.rpc_context;
protocol_data : Tezos_protocol_alpha.Protocol.Alpha_context.Block_header.protocol_data;
raw_protocol_data : Tezos_base.TzPervasives.Bytes.t;
operations : Tezos_client_alpha.Mockup.M.Block_services.operation list list;
resulting_context_hash : Tezos_base.TzPervasives.Context_hash.t;

}

Representation of a block in the simulator.

type chain = block list

Chain is a list of blocks.

type propagation =

| Block
(*
Block the operation/block, it'll never be delivered.
*)
| Pass
(*
Pass the operation/block as is.
*)
| Delay of float
(*
Delay the operation/block for the given number of seconds.
*)

How an operation or block should propagate through the network.

type propagation_vector = propagation list

Values of this type specify to which bakers a block or operation should be delivered.

module type Hooks = sig ... end

The way to control behavior of a mockup node.

module Default_hooks : Hooks

The default hook implementation.

type config = {

round0 : int64;
(*
Duration of the round 0 in seconds.
*)
round1 : int64;
(*
Duration of the round 1 in seconds.
*)
timeout : int;
(*
Maximal duration of the test. If the test takes longer to terminate it'll be aborted with an error.
*)
delegate_selection : (int32 * (int32 * Tezos_base.TzPervasives.Signature.public_key_hash) list) list;
(*
Desired selection of delegates per level/round
*)
initial_seed : Tezos_protocol_alpha.Protocol.State_hash.t option;
(*
Optional initial seed for protocol (used to control delegate selection)
*)
consensus_committee_size : int;
(*
Size of the committee for tenderbake in number of slots
*)
consensus_threshold : int;
(*
Threshold, in number of slots, for the quorum to be considered reached. Should be 2 * consensus_committee_size / 3 + 1 in usual setting for tenderbake.
*)

}

Simulation configuration.

val default_config : config

Default configuration.

val run : 
  ?config:config ->
  (int * (module Hooks)) list ->
  unit Tezos_base.TzPervasives.tzresult Lwt.t

run spec runs a simulation according to the spec. Elements of spec describe bakers: how many delegate each baker has and how it behaves. The total number of delegates cannot exceed 5 for now (it is easy to increase this limit). The delegates are assigned in order, gradually exhausting the standard bootstrap accounts. For example, if the first baker has 3 delegates and the second one has 2 delegates, we have the following distribution of bootstrap accounts:

Baker no. 1: bootstrap1, bootstrap2, bootstrap3

Baker no. 2: bootstrap4, bootstrap5

A simulation continues till all nodes finish either with an error or successfully. If at least one node finishes with an error, it propagates to the final result.

val bootstrap1 : Tezos_base.TzPervasives.Signature.public_key

val bootstrap2 : Tezos_base.TzPervasives.Signature.public_key

val bootstrap3 : Tezos_base.TzPervasives.Signature.public_key

val bootstrap4 : Tezos_base.TzPervasives.Signature.public_key

val bootstrap5 : Tezos_base.TzPervasives.Signature.public_key

val check_block_signature : 
  block_hash:Tezos_base.TzPervasives.Block_hash.t ->
  block_header:Tezos_base.TzPervasives.Block_header.t ->
  public_key:Tezos_base.TzPervasives.Signature.public_key ->
  unit Tezos_base.TzPervasives.tzresult Lwt.t

Check if a block header is signed by a given delegate.

type op_predicate =
  Tezos_base.TzPervasives.Operation_hash.t ->
  Tezos_protocol_alpha.Protocol.Alpha_context.packed_operation ->
  bool Tezos_base.TzPervasives.tzresult Lwt.t

A shortcut type for predicates on operations.

val mempool_count_ops : 
  mempool:
    (Tezos_base.TzPervasives.Operation_hash.t
     * Tezos_client_alpha.Mockup.M.Protocol.operation)
      list ->
  predicate:op_predicate ->
  int Tezos_base.TzPervasives.tzresult Lwt.t

Count the number of operations in the mempool that satisfy the given predicate.

val mempool_has_op : 
  mempool:
    (Tezos_base.TzPervasives.Operation_hash.t
     * Tezos_client_alpha.Mockup.M.Protocol.operation)
      list ->
  predicate:op_predicate ->
  bool Tezos_base.TzPervasives.tzresult Lwt.t

Check if the mempool has at least one operation that satisfies the given predicate.

val mempool_has_op_ref : 
  mempool:
    (Tezos_base.TzPervasives.Operation_hash.t
     * Tezos_client_alpha.Mockup.M.Protocol.operation)
      list ->
  predicate:op_predicate ->
  var:bool ref ->
  unit Tezos_base.TzPervasives.tzresult Lwt.t

Similar to mempool_has_op but instead of returning a bool it sets the given bool ref.

val op_is_signed_by : 
  public_key:Tezos_base.TzPervasives.Signature.public_key ->
  op_predicate

Check if an operation is signed by the given delegate.

val op_is_preattestation : ?level:int32 -> ?round:int32 -> op_predicate

Check that an operation is a preattestation.

val op_is_attestation : ?level:int32 -> ?round:int32 -> op_predicate

Check that an operation is an attestation.

val op_is_both : op_predicate -> op_predicate -> op_predicate

Combine two predicates.

val save_proposal_payload : 
  protocol_data:
    Tezos_protocol_alpha.Protocol.Alpha_context.Block_header.protocol_data ->
  var:
    (Tezos_protocol_alpha.Protocol.Block_payload_hash.t
     * Tezos_protocol_alpha.Protocol.Alpha_context.Round.t)
      option
      ref ->
  unit Tezos_base.TzPervasives.tzresult Lwt.t

Set the given variable to save payload hash and payload round.

val verify_payload_hash : 
  protocol_data:
    Tezos_protocol_alpha.Protocol.Alpha_context.Block_header.protocol_data ->
  original_proposal:
    (Tezos_protocol_alpha.Protocol.Block_payload_hash.t
     * Tezos_protocol_alpha.Protocol.Alpha_context.Round.t)
      option
      ref ->
  message:string ->
  unit Tezos_base.TzPervasives.tzresult Lwt.t

Check that payload hashes match, fail if it is not the case.

val parse_protocol_data : 
  Tezos_base.TzPervasives.Bytes.t ->
  Tezos_protocol_alpha.Protocol.Alpha_context.Block_header.protocol_data
    Tezos_base.TzPervasives.tzresult
    Lwt.t

Parse protocol data.

val get_block_round : block -> int32 Tezos_base.TzPervasives.tzresult Lwt.t

Get round of a block.

package octez-protocol-alpha-libs