referrerpolicy=no-referrer-when-downgrade
cumulus_primitives_core

Trait RelayParentOffsetApi

Source 
pub trait RelayParentOffsetApi<Block: BlockT>: Core<Block> {
    // Provided method
    fn relay_parent_offset(
        &self,
        __runtime_api_at_param__: <Block as BlockT>::Hash,
    ) -> Result<u32, ApiError> { ... }
}
Expand description

API to tell the node side how the relay parent should be chosen.

A larger offset indicates that the relay parent should not be the tip of the relay chain, but N blocks behind the tip. This offset is then enforced by the runtime.

Provided Methods§

Source

fn relay_parent_offset( &self, __runtime_api_at_param__: <Block as BlockT>::Hash, ) -> Result<u32, ApiError>

Fetch the slot offset that is expected from the relay chain.

Trait Implementations§

Source§

impl<Block: BlockT> RuntimeApiInfo for dyn RelayParentOffsetApi<Block>

Source§

const ID: [u8; 8] = _

The identifier of the runtime api.
Source§

const VERSION: u32 = 1u32

The version of the runtime api.

Implementors§

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,

impl<__SrApiBlock__: BlockT, RuntimeApiImplCall: CallApiAt<__SrApiBlock__> + 'static> RelayParentOffsetApi<__SrApiBlock__> for RuntimeApiImpl<__SrApiBlock__, RuntimeApiImplCall>
where RuntimeApiImplCall::StateBackend: StateBackend<HashingFor<__SrApiBlock__>>, &'static RuntimeApiImplCall: Send,