Module vapcore::block

Base data structure of this module is Block.

Blocks can be produced by a local node or they may be received from the network.

To create a block locally, we start with an OpenBlock. This block is mutable and can be appended to with transactions and uncles.

When ready, OpenBlock can be closed and turned into a ClosedBlock. A ClosedBlock can be re-opened again by a miner under certain circumstances. On block close, state commit is performed.

LockedBlock is a version of a ClosedBlock that cannot be reopened. It can be sealed using an engine.

ExecutedBlock from the mashina crate is the underlying data structure used by all structs above to store block related info.

Structs

ClosedBlock	Just like OpenBlock, except that we’ve applied Engine::on_close_block, finished up the non-seal header fields, and collected the uncles.
LockedBlock	Just like ClosedBlock except that we can’t reopen it and it’s faster.
OpenBlock	Block that is ready for transactions to be added.
SealedBlock	A block that has a valid seal.

Traits

Drain

Trait for an object that owns an ExecutedBlock

Functions

enact_verified

Enact the block given by block_bytes using engine on the database db with the given parent block header