Module polkadot_parachain::primitives
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Primitive types which are strictly necessary from a parachain-execution point of view.
Structs
Parachain block data.
Parachain head data included in the chain.
A type that uniquely identifies an HRMP channel. An HRMP channel is established between two paras.
In text, we use the notation
(A, B) to specify a channel between A and B. The channels are
unidirectional, meaning that (A, B) and (B, A) refer to different channels. The convention is
that we use the first item tuple for the sender and the second for the recipient. Only one channel
is allowed between two participants in one direction, i.e. there cannot be 2 different channels
identified by (A, B). A channel with the same para id in sender and recipient is invalid. That
is, however, not enforced.Unique identifier of a parachain.
Parachain validation code.
Unit type wrapper around
Hash that represents a validation code hash.Validation parameters for evaluating the parachain validity function.
The result of parachain validation.
Enums
The aggregate XCMP message format.
Constants
The ID of the first publicly registerable parachain.
The ID of the first user (non-system) parachain.
Traits
Something that should be called when a downward message is received.
Determine if a parachain is a system parachain or not.
Something that should be called for each batch of messages received over XCMP.
Type Definitions
Block number type used by the relay chain.
The block number type used by Polkadot.
32-bits will allow for 136 years of blocks assuming 1 block per second.
A message from a parachain to its Relay Chain.