Struct pallet_collator_selection::pallet::Pallet

impl<T: Config> Pallet<T>

pub fn set_invulnerables( origin: OriginFor<T>, new: Vec<T::AccountId> ) -> DispatchResultWithPostInfo

Set the list of invulnerable (fixed) collators.

pub fn set_desired_candidates( origin: OriginFor<T>, max: u32 ) -> DispatchResultWithPostInfo

Set the ideal number of collators (not including the invulnerables). If lowering this number, then the number of running collators could be higher than this figure. Aside from that edge case, there should be no other way to have more collators than the desired number.

pub fn set_candidacy_bond( origin: OriginFor<T>, bond: <<T as Config>::Currency as Currency<<T as SystemConfig>::AccountId>>::Balance ) -> DispatchResultWithPostInfo

Set the candidacy bond amount.

pub fn register_as_candidate(origin: OriginFor<T>) -> DispatchResultWithPostInfo

Register this account as a collator candidate. The account must (a) already have registered session keys and (b) be able to reserve the CandidacyBond.

This call is not available to Invulnerable collators.

pub fn leave_intent(origin: OriginFor<T>) -> DispatchResultWithPostInfo

Deregister origin as a collator candidate. Note that the collator can only leave on session change. The CandidacyBond will be unreserved immediately.

This call will fail if the total number of candidates would drop below MinCandidates.

This call is not available to Invulnerable collators.

impl<T: Config> Pallet<T>

pub fn account_id() -> T::AccountId

Get a unique, inaccessible account id from the PotId.

pub fn assemble_collators( candidates: BoundedVec<T::AccountId, T::MaxCandidates> ) -> Vec<T::AccountId>

Assemble the current set of candidates and invulnerables into the next collator set.

This is done on the fly, as frequent as we are told to do so, as the session manager.

pub fn kick_stale_candidates( candidates: BoundedVec<CandidateInfo<T::AccountId, <<T as Config>::Currency as Currency<<T as SystemConfig>::AccountId>>::Balance>, T::MaxCandidates> ) -> BoundedVec<T::AccountId, T::MaxCandidates>

Kicks out candidates that did not produce a block in the kick threshold and refund their deposits.

impl<T: Config> Pallet<T>

pub fn invulnerables() -> BoundedVec<T::AccountId, T::MaxInvulnerables>

The invulnerable, fixed collators.

impl<T: Config> Pallet<T>

pub fn candidates( ) -> BoundedVec<CandidateInfo<T::AccountId, <<T as Config>::Currency as Currency<<T as SystemConfig>::AccountId>>::Balance>, T::MaxCandidates>

The (community, limited) collation candidates.

impl<T: Config> Pallet<T>

pub fn last_authored_block<KArg>(k: KArg) -> T::BlockNumberwhere KArg: EncodeLike<T::AccountId>,

Last block authored by collator.

impl<T: Config> Pallet<T>

pub fn desired_candidates() -> u32

Desired number of candidates.

This should ideally always be less than Config::MaxCandidates for weights to be correct.

impl<T: Config> Pallet<T>

pub fn candidacy_bond( ) -> <<T as Config>::Currency as Currency<<T as SystemConfig>::AccountId>>::Balance

Fixed amount to deposit to become a collator.

When a collator calls leave_intent they immediately receive the deposit back.

Trait Implementations§

fn clone(&self) -> Self

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl<T> Debug for Pallet<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl<T: Config + Config> EventHandler<<T as Config>::AccountId, <T as Config>::BlockNumber> for Pallet<T>

Keep track of number of authored blocks per authority, uncles are counted as well since they’re a valid proof of being online.

fn note_author(author: T::AccountId)

Note that the given account ID is the author of the current block.

fn note_uncle(_author: T::AccountId, _age: T::BlockNumber)

Note that the given account ID authored the given uncle, and how many blocks older than the current block it is (age >= 0, so siblings are allowed)

impl<T: Config> GetStorageVersion for Pallet<T>

fn current_storage_version() -> StorageVersion

Returns the current storage version as supported by the pallet.

fn on_chain_storage_version() -> StorageVersion

Returns the on-chain storage version of the pallet as stored in the storage.

impl<T: Config> Hooks<<T as Config>::BlockNumber> for Pallet<T>

fn on_finalize(_n: BlockNumber)

The block is being finalized. Implement to have something happen.

fn on_idle(_n: BlockNumber, _remaining_weight: Weight) -> Weight

This will be run when the block is being finalized (before on_finalize). Implement to have something happen using the remaining weight. Will not fire if the remaining weight is 0. Return the weight used, the hook will subtract it from current weight used and pass the result to the next on_idle hook if it exists.

fn on_initialize(_n: BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

fn offchain_worker(_n: BlockNumber)

Implementing this function on a module allows you to perform long-running tasks that make (by default) validators generate transactions that feed results of those long-running computations back on chain. Read more

fn integrity_test()

Run integrity test. Read more

impl<T: Config> IntegrityTest for Pallet<T>

fn integrity_test()

Run integrity test. Read more

impl<T: Config> OffchainWorker<<T as Config>::BlockNumber> for Pallet<T>

fn offchain_worker(n: <T as Config>::BlockNumber)

This function is being called after every block import (when fully synced). Read more

impl<T: Config> OnFinalize<<T as Config>::BlockNumber> for Pallet<T>

fn on_finalize(n: <T as Config>::BlockNumber)

The block is being finalized. Implement to have something happen. Read more

impl<T: Config> OnGenesis for Pallet<T>

fn on_genesis()

Something that should happen at genesis.

impl<T: Config> OnIdle<<T as Config>::BlockNumber> for Pallet<T>

fn on_idle(n: <T as Config>::BlockNumber, remaining_weight: Weight) -> Weight

The block is being finalized. Implement to have something happen in case there is leftover weight. Check the passed remaining_weight to make sure it is high enough to allow for your pallet’s extra computation. Read more

impl<T: Config> OnInitialize<<T as Config>::BlockNumber> for Pallet<T>

fn on_initialize(n: <T as Config>::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

impl<T: Config> OnRuntimeUpgrade for Pallet<T>

fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

impl<T: Config> PalletInfoAccess for Pallet<T>

fn index() -> usize

Index of the pallet as configured in the runtime.

fn name() -> &'static str

Name of the pallet as configured in the runtime.

fn module_name() -> &'static str

Name of the Rust module containing the pallet.

fn crate_version() -> CrateVersion

Version of the crate containing the pallet.

impl<T: Config> PalletsInfoAccess for Pallet<T>

fn count() -> usize

The number of pallets’ information that this type represents. Read more

fn infos() -> Vec<PalletInfoData>

All of the pallets’ information that this type represents.

impl<T> PartialEq<Pallet<T>> for Pallet<T>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Config> SessionManager<<T as Config>::AccountId> for Pallet<T>

Play the role of the session manager.

fn new_session(index: SessionIndex) -> Option<Vec<T::AccountId>>

Plan a new session, and optionally provide the new validator set. Read more

fn start_session(_: SessionIndex)

Start an already planned session. Read more

fn end_session(_: SessionIndex)

End the session. Read more

fn new_session_genesis(new_index: u32) -> Option<Vec<ValidatorId, Global>>

Same as new_session, but it this should only be called at genesis. Read more

impl<T: Config> StorageInfoTrait for Pallet<T>

fn storage_info() -> Vec<StorageInfo>

impl<T: Config> WhitelistedStorageKeys for Pallet<T>

fn whitelisted_storage_keys() -> Vec<TrackedStorageKey>

Returns a Vec<TrackedStorageKey> indicating the storage keys that should be whitelisted during benchmarking. This means that those keys will be excluded from the benchmarking performance calculation.

impl<T> Eq for Pallet<T>

Auto Trait Implementations§

impl<T> RefUnwindSafe for Pallet<T>where T: RefUnwindSafe,

impl<T> Send for Pallet<T>where T: Send,

impl<T> Sync for Pallet<T>where T: Sync,

impl<T> Unpin for Pallet<T>where T: Unpin,

impl<T> UnwindSafe for Pallet<T>where T: UnwindSafe,

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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fn checked_from<T>(t: T) -> Option<Self>where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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Consume self to return Some equivalent value of Option<T>. Read more

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fn conv<T>(self) -> Twhere Self: Into<T>,

Converts self into T using Into<T>. Read more

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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

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fn __clone_box(&self, _: Private) -> *mut ()

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Compare self to key and return true if they are equal.

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fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

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Causes self to use its UpperExp implementation when Debug-formatted.

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Causes self to use its UpperHex implementation when Debug-formatted.

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Formats each item in a sequence. Read more

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Cast reference.

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Cast reference.

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Cast mutable reference.

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Cast mutable reference.

impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> PalletVersionToStorageVersionHelper for Twhere T: GetStorageVersion + PalletInfoAccess,

fn migrate(db_weight: &RuntimeDbWeight) -> Weight

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Mutably borrows self and passes that borrow into the pipe function. Read more

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Borrows self, then passes self.borrow() into the pipe function. Read more

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Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

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