Module import_queue

Import Queue primitive: something which can verify and import blocks.

This serves as an intermediate and abstracted step between synchronization and import. Each mode of consensus will have its own requirements for block verification. Some algorithms can verify in parallel, while others only sequentially.

The ImportQueue trait allows such verification strategies to be instantiated. The BasicQueue and BasicVerifier traits allow serial queues to be instantiated simply.

Modules

• buffered_link
  Provides the buffered_link utility.
• mock

Structs

• BasicQueue
  Interface to a basic block import queue that is importing blocks sequentially in a separate task, with plugable verification.
• IncomingBlock
  Block data used by the queue.

Enums

• BlockImportError
  Block import error.
• BlockImportStatus
  Block import successful result.

Traits

• ImportQueue
• ImportQueueService
  Blocks import queue API.
• Link
  Hooks that the verification queue can use to influence the synchronization algorithm.
• Verifier
  Verify a justification of a block

Functions

• import_single_block
  Single block import function.

Type Aliases

• BoxBlockImport
  Shared block import struct used by the queue.
• BoxJustificationImport
  Shared justification import struct used by the queue.
• DefaultImportQueue
  A commonly-used Import Queue type.
• RuntimeOrigin
  Maps to the RuntimeOrigin used by the network.