Module polkadot_node_subsystem_util::runtime

Convenient and efficient runtime info access. Convenient interface to runtime information.

Structs

• ClaimQueueSnapshot
  A snapshot of the runtime claim queue at an arbitrary relay chain block.
• Config
  Configuration for construction a RuntimeInfo.
• ExtendedSessionInfo
  SessionInfo with additional useful data for validator nodes.
• RuntimeInfo
  Caching of session info.
• ValidatorInfo
  Information about ourselves, in case we are an Authority.

Enums

• Error
• FatalError
• JfyiError
• ProspectiveParachainsMode
  Prospective parachains mode of a relay parent. Defined by the Runtime API version.

Functions

• check_signature
  Convenience function for quickly checking the signature on signed data.
• fetch_claim_queue
  Checks if the runtime supports request_claim_queue and attempts to fetch the claim queue. Returns ClaimQueueSnapshot or None if claim queue API is not supported by runtime. Any specific RuntimeApiError is bubbled up to the caller.
• get_availability_cores
  Request availability cores from the runtime.
• get_candidate_events
  Get CandidateEvents for the given relay_parent.
• get_disabled_validators_with_fallback
  Returns disabled validators list if the runtime supports it. Otherwise logs a debug messages and returns an empty vec. Once runtime ver DISABLED_VALIDATORS_RUNTIME_REQUIREMENT is released remove this function and replace all usages with request_disabled_validators
• get_group_rotation_info
  Get group rotation info based on the given relay_parent.
• get_occupied_cores
  Variant of request_availability_cores that only returns occupied ones.
• get_on_chain_votes
  Get on chain votes.
• get_unapplied_slashes
  Fetch a list of PendingSlashes from the runtime.
• get_validation_code_by_hash
  Fetch ValidationCode by hash from the runtime.
• key_ownership_proof
  Generate validator key ownership proof.
• prospective_parachains_mode
  Requests prospective parachains mode for a given relay parent based on the Runtime API version.
• recv_runtime
  Receive a response from a runtime request and convert errors.
• request_min_backing_votes
  Request the min backing votes value. Prior to runtime API version 6, just return a hardcoded constant.
• request_node_features
  Request the node features enabled in the runtime. Pass in the session index for caching purposes, as it should only change on session boundaries. Prior to runtime API version 9, just return None.
• submit_report_dispute_lost
  Submit a past-session dispute slashing report.