Crate polkadot_node_subsystem_types 

Subsystem trait definitions and message types.

Node-side logic for Polkadot is mostly comprised of Subsystems, which are discrete components that communicate via message-passing. They are coordinated by an overseer, provided by a separate crate.

Re-exports

pub use polkadot_node_jaeger as jaeger;

Modules

errors

Error types for the subsystem requests.

messages

Message types for the overseer and subsystems.

Structs

ActivatedLeaf

Activated leaf.

ActiveLeavesUpdate

Changes in the set of active leaves: the parachain heads which we care to work on.

DefaultSubsystemClient

Default implementation of RuntimeApiSubsystemClient using the client.

JaegerConfig

Configuration for the jaeger tracing.

JaegerConfigBuilder

Jaeger configuration builder.

PerLeafSpan

A special “per leaf span”.

Enums

Jaeger

Stateful convenience wrapper around mick_jaeger.

JaegerError

A description of an error during jaeger initialization.

OverseerSignal

Signals sent by an overseer to a subsystem.

Span

A wrapper type for a span.

Stage

A helper to annotate the stage with a numerical value to ease the life of the tooling team creating viable statistical metrics for which stage of the inclusion pipeline drops a significant amount of candidates, statistically speaking.

Traits

ChainApiBackend

Offers header utilities.

RuntimeApiSubsystemClient

Exposes all runtime calls that are used by the runtime API subsystem.

Functions

hash_to_trace_identifier

A helper to convert the hash to the fixed size representation needed for jaeger.

Type Aliases

Block

Block type.

BlockNumber

The block number type used by Polkadot. 32-bits will allow for 136 years of blocks assuming 1 block per second.

Hash

A hash of some data used by the relay chain.

UnpinHandle

Keeps the state of a specific block pinned in memory while the handle is alive.