Struct pallet_session::pallet::Pallet

impl<T: Config> Pallet<T>

pub fn set_keys( origin: OriginFor<T>, keys: T::Keys, proof: Vec<u8> ) -> DispatchResult

Sets the session key(s) of the function caller to keys. Allows an account to set its session key prior to becoming a validator. This doesn’t take effect until the next session.

The dispatch origin of this function must be signed.

§Complexity

O(1). Actual cost depends on the number of length of T::Keys::key_ids() which is fixed.

pub fn purge_keys(origin: OriginFor<T>) -> DispatchResult

Removes any session key(s) of the function caller.

This doesn’t take effect until the next session.

The dispatch origin of this function must be Signed and the account must be either be convertible to a validator ID using the chain’s typical addressing system (this usually means being a controller account) or directly convertible into a validator ID (which usually means being a stash account).

§Complexity

O(1) in number of key types. Actual cost depends on the number of length of T::Keys::key_ids() which is fixed.

pub fn validators() -> Vec<T::ValidatorId>

An auto-generated getter for Validators.

impl<T: Config> Pallet<T>

pub fn current_index() -> SessionIndex

An auto-generated getter for CurrentIndex.

impl<T: Config> Pallet<T>

pub fn queued_keys() -> Vec<(T::ValidatorId, T::Keys)>

An auto-generated getter for QueuedKeys.

impl<T: Config> Pallet<T>

pub fn disabled_validators() -> Vec<u32>

An auto-generated getter for DisabledValidators.

impl<T: Config> Pallet<T>

pub fn rotate_session()

Move on to next session. Register new validator set and session keys. Changes to the validator set have a session of delay to take effect. This allows for equivocation punishment after a fork.

pub fn disable_index(i: u32) -> bool

Disable the validator of index i, returns false if the validator was already disabled.

pub fn disable(c: &T::ValidatorId) -> bool

Disable the validator identified by c. (If using with the staking pallet, this would be their stash account.)

Returns false either if the validator could not be found or it was already disabled.

pub fn upgrade_keys<Old, F>(upgrade: F)
where Old: OpaqueKeys + Member + Decode, F: Fn(T::ValidatorId, Old) -> T::Keys,

Upgrade the key type from some old type to a new type. Supports adding and removing key types.

This function should be used with extreme care and only during an on_runtime_upgrade block. Misuse of this function can put your blockchain into an unrecoverable state.

Care should be taken that the raw versions of the added keys are unique for every ValidatorId, KeyTypeId combination. This is an invariant that the session pallet typically maintains internally.

As the actual values of the keys are typically not known at runtime upgrade, it’s recommended to initialize the keys to a (unique) dummy value with the expectation that all validators should invoke set_keys before those keys are actually required.

pub(crate) fn do_set_keys( account: &T::AccountId, keys: T::Keys ) -> DispatchResult

Perform the set_key operation, checking for duplicates. Does not set Changed.

This ensures that the reference counter in system is incremented appropriately and as such must accept an account ID, rather than a validator ID.

pub(crate) fn inner_set_keys( who: &T::ValidatorId, keys: T::Keys ) -> Result<Option<T::Keys>, DispatchError>

Perform the set_key operation, checking for duplicates. Does not set Changed.

The old keys for this validator are returned, or None if there were none.

This does not ensure that the reference counter in system is incremented appropriately, it must be done by the caller or the keys will be leaked in storage.

pub(crate) fn do_purge_keys(account: &T::AccountId) -> DispatchResult

pub(crate) fn load_keys(v: &T::ValidatorId) -> Option<T::Keys>

pub(crate) fn take_keys(v: &T::ValidatorId) -> Option<T::Keys>

pub(crate) fn put_keys(v: &T::ValidatorId, keys: &T::Keys)

pub fn key_owner(id: KeyTypeId, key_data: &[u8]) -> Option<T::ValidatorId>

Query the owner of a session key by returning the owner’s validator ID.

pub(crate) fn put_key_owner(id: KeyTypeId, key_data: &[u8], v: &T::ValidatorId)

pub(crate) fn clear_key_owner(id: KeyTypeId, key_data: &[u8])

Trait Implementations§

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

fn before_all_runtime_migrations() -> Weight

Something that should happen before runtime migrations are executed.

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

type RuntimeCall = Call<T>

impl<T> Clone for Pallet<T>

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source§

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> DisabledValidators for Pallet<T>

fn is_disabled(index: u32) -> bool

Returns true if the given validator is disabled.

fn disabled_validators() -> Vec<u32>

Returns all disabled validators

fn estimate_next_new_session( now: BlockNumberFor<T> ) -> (Option<BlockNumberFor<T>>, Weight)

This session pallet always calls new_session and next_session at the same time, hence we do a simple proxy and pass the function to next rotation.

fn average_session_length() -> BlockNumberFor<T>

Return the average length of a session. Read more

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

type InCodeStorageVersion = StorageVersion

This type is generated by the pallet macro. Read more

fn in_code_storage_version() -> Self::InCodeStorageVersion

Returns the in-code storage version as specified in the storage_version attribute, or [NoStorageVersionSet] if the attribute is missing.

fn on_chain_storage_version() -> StorageVersion

Returns the storage version of the pallet as last set in the actual on-chain storage.

fn current_storage_version() -> Self::InCodeStorageVersion

👎Deprecated: This method has been renamed to in_code_storage_version and will be removed after March 2024.

DEPRECATED: Use [Self::current_storage_version] instead. Read more

fn on_initialize(n: BlockNumberFor<T>) -> Weight

Called when a block is initialized. Will rotate session if it is the last block of the current session.

fn on_finalize(_n: BlockNumber)

Block finalization hook. This is called at the very end of block execution. Read more

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

Hook to consume a block’s idle time. This will run when the block is being finalized (before [Hooks::on_finalize]). Read more

fn on_poll(_n: BlockNumber, _weight: &mut WeightMeter)

A hook to run logic after inherent application. Read more

fn on_runtime_upgrade() -> Weight

Hook executed when a code change (aka. a “runtime upgrade”) is detected by the FRAME Executive pallet. Read more

fn offchain_worker(_n: BlockNumber)

Implementing this function on a pallet allows you to perform long-running tasks that are dispatched as separate threads, and entirely independent of the main blockchain execution. Read more

fn integrity_test()

Check the integrity of this pallet’s configuration. Read more

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

fn integrity_test()

See [Hooks::integrity_test].

fn offchain_worker(n: BlockNumberFor<T>)

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

fn on_finalize(n: BlockNumberFor<T>)

See [Hooks::on_finalize].

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

fn on_genesis()

Something that should happen at genesis.

fn on_idle(n: BlockNumberFor<T>, remaining_weight: Weight) -> Weight

See [Hooks::on_idle].

fn on_initialize(n: BlockNumberFor<T>) -> Weight

See [Hooks::on_initialize].

fn on_poll(n: BlockNumberFor<T>, weight: &mut WeightMeter)

Code to execute every now and then at the beginning of the block after inherent application. Read more

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

fn on_runtime_upgrade() -> Weight

See [Hooks::on_runtime_upgrade].

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 name_hash() -> [u8; 16]

Two128 hash of name.

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 for Pallet<T>

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

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

1.0.0 · source§

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> StorageInfoTrait for Pallet<T>

fn storage_info() -> Vec<StorageInfo>

impl<T: Config> ValidatorRegistration<<T as Config>::ValidatorId> for Pallet<T>

fn is_registered(id: &T::ValidatorId) -> bool

Returns true if the provided validator ID has been registered with the implementing runtime module

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

type ValidatorId = <T as Config>::ValidatorId

Type for representing validator id in a session.

type ValidatorIdOf = <T as Config>::ValidatorIdOf

A type for converting AccountId to ValidatorId.

fn session_index() -> SessionIndex

Returns current session index.

fn validators() -> Vec<Self::ValidatorId>

Returns the active set of validators.

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 T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more

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where T: ?Sized,

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Immutably borrows from an owned value. Read more

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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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where Self: TryInto<T>,

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

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where Self: Into<T>,

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

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Checks if this value is equivalent to the given key. Read more

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

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

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

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