Module cumulus_client_consensus_aura::collators::slot_based

A collator for Aura that looks ahead of the most recently included parachain block when determining what to build upon.

The block building mechanism consists of two parts: 1. A block-builder task that builds parachain blocks at each of our slots. 2. A collator task that transforms the blocks into a collation and submits them to the relay chain.

Blocks are built on every parachain slot if there is a core scheduled on the relay chain. At the beginning of each block building loop, we determine how many blocks we expect to build per relay chain block. The collator implementation then expects that we have that many cores scheduled during the relay chain block. After the block is built, the block builder task sends it to the collation task which compresses it and submits it to the collation-generation subsystem.

Structs

• Params
  Parameters for run.
• SlotBasedBlockImport
  Special block import for the slot based collator.
• SlotBasedBlockImportHandle
  Handle for receiving the block and the storage proof from the SlotBasedBlockImport.

Functions

• run
  Run aura-based block building and collation task.