Evm_node_lib_dev.Blueprints_followertype on_new_blueprint_handler =
Evm_node_lib_dev_encoding.Ethereum_types.quantity ->
Blueprint_types.with_events ->
[ `Restart_from of Evm_node_lib_dev_encoding.Ethereum_types.quantity
| `Continue ]
Tezos_base.TzPervasives.tzresult
Lwt.tA on_new_blueprint_handler is a function that is called for every blueprint fetched from a remote EVM endpoint.
type on_finalized_levels_handler =
l1_level:int32 ->
start_l2_level:Evm_node_lib_dev_encoding.Ethereum_types.quantity ->
end_l2_level:Evm_node_lib_dev_encoding.Ethereum_types.quantity ->
unit Tezos_base.TzPervasives.tzresult Lwt.tA on_finalized_levels_handler is a function that is called for every finalized l1-l2 levels association fetched from a remote EVM endpoint.
val start :
?ping_tx_pool:bool ->
multichain:bool ->
time_between_blocks:Evm_node_config.Configuration.time_between_blocks ->
evm_node_endpoint:Uri.t ->
next_blueprint_number:Evm_node_lib_dev_encoding.Ethereum_types.quantity ->
on_new_blueprint:on_new_blueprint_handler ->
on_finalized_levels:on_finalized_levels_handler ->
unit ->
'a Tezos_base.TzPervasives.tzresult Lwt.tstart ~multichain ~time_between_blocks ~evm_node_endpoint
~get_next_blueprint_number on_new_blueprint_handler
on_finalized_levels_handler is a never-returning function which iterates over blueprints streamed by evm_node_endpoint, calling on_new_blueprint_handler for each blueprint in order and on_finalized_levels_handler for each finalized levels notified by the remote EVM endpoint.
next_blueprint_number is the height of the current local head, while time_between_blocks is used to detect when a connection to evm_node_endpoint is stalling. multichain is used to know where to retrieve the block number.
If ping_tx_pool is set to true (as it is if omitted), then the blueprint follower will ping the Tx_pool for every blueprint it receives. Conversely, setting it to false allows to call start without a running Tx_pool.