Struct polkadot_runtime_parachains::paras::pallet::Pallet

impl<T: Config> Pallet<T>

pub fn force_set_current_code(
 origin: OriginFor<T>,
 para: ParaId,
 new_code: ValidationCode
) -> DispatchResult

Set the storage for the parachain validation code immediately.

pub fn force_set_current_head(
 origin: OriginFor<T>,
 para: ParaId,
 new_head: HeadData
) -> DispatchResult

Set the storage for the current parachain head data immediately.

pub fn force_schedule_code_upgrade(
 origin: OriginFor<T>,
 para: ParaId,
 new_code: ValidationCode,
 relay_parent_number: T::BlockNumber
) -> DispatchResult

Schedule an upgrade as if it was scheduled in the given relay parent block.

pub fn force_note_new_head(
 origin: OriginFor<T>,
 para: ParaId,
 new_head: HeadData
) -> DispatchResult

Note a new block head for para within the context of the current block.

pub fn force_queue_action(origin: OriginFor<T>, para: ParaId) -> DispatchResult

Put a parachain directly into the next session’s action queue. We can’t queue it any sooner than this without going into the initializer…

pub fn add_trusted_validation_code(
origin: OriginFor<T>,
validation_code: ValidationCode
) -> DispatchResult

Adds the validation code to the storage.

The code will not be added if it is already present. Additionally, if PVF pre-checking is running for that code, it will be instantly accepted.

Otherwise, the code will be added into the storage. Note that the code will be added into storage with reference count 0. This is to account the fact that there are no users for this code yet. The caller will have to make sure that this code eventually gets used by some parachain or removed from the storage to avoid storage leaks. For the latter prefer to use the poke_unused_validation_code dispatchable to raw storage manipulation.

This function is mainly meant to be used for upgrading parachains that do not follow the go-ahead signal while the PVF pre-checking feature is enabled.

pub fn poke_unused_validation_code(
origin: OriginFor<T>,
validation_code_hash: ValidationCodeHash
) -> DispatchResult

Remove the validation code from the storage iff the reference count is 0.

This is better than removing the storage directly, because it will not remove the code that was suddenly got used by some parachain while this dispatchable was pending dispatching.

pub fn include_pvf_check_statement(
 origin: OriginFor<T>,
 stmt: PvfCheckStatement,
 signature: ValidatorSignature
) -> DispatchResultWithPostInfo

Includes a statement for a PVF pre-checking vote. Potentially, finalizes the vote and enacts the results if that was the last vote before achieving the supermajority.

impl<T: Config> Pallet<T>

pub fn parachains() -> Vec<ParaId> ⓘ

All parachains. Ordered ascending by ParaId. Parathreads are not included.

Consider using the [ParachainsCache] type of modifying.

impl<T: Config> Pallet<T>

pub fn para_head<KArg>(k: KArg) -> Option<HeadData>where
KArg: EncodeLike<ParaId>,

The head-data of every registered para.

impl<T: Config> Pallet<T>

pub fn current_code_hash<KArg>(k: KArg) -> Option<ValidationCodeHash>where
KArg: EncodeLike<ParaId>,

The validation code hash of every live para.

Corresponding code can be retrieved with [CodeByHash].

impl<T: Config> Pallet<T>

pub fn past_code_meta<KArg>(k: KArg) -> ParaPastCodeMeta<T::BlockNumber>where
KArg: EncodeLike<ParaId>,

Past code of parachains. The parachains themselves may not be registered anymore, but we also keep their code on-chain for the same amount of time as outdated code to keep it available for secondary checkers.

impl<T: Config> Pallet<T>

pub fn future_code_upgrade_at<KArg>(k: KArg) -> Option<T::BlockNumber>where
KArg: EncodeLike<ParaId>,

The block number at which the planned code change is expected for a para. The change will be applied after the first parablock for this ID included which executes in the context of a relay chain block with a number >= expected_at.

impl<T: Config> Pallet<T>

pub fn actions_queue<KArg>(k: KArg) -> Vec<ParaId> ⓘwhere
KArg: EncodeLike<SessionIndex>,

The actions to perform during the start of a specific session index.

impl<T: Config> Pallet<T>

pub fn code_by_hash<KArg>(k: KArg) -> Option<ValidationCode>where
KArg: EncodeLike<ValidationCodeHash>,

Validation code stored by its hash.

This storage is consistent with [FutureCodeHash], [CurrentCodeHash] and [PastCodeHash].

impl<T: Config> Pallet<T>

pub fn can_schedule_para_initialize(id: &ParaId) -> bool

Verify that schedule_para_initialize can be called successfully.

Returns false if para is already registered in the system.

pub fn lifecycle(id: ParaId) -> Option<ParaLifecycle>

Returns the current lifecycle state of the para.

pub fn is_valid_para(id: ParaId) -> bool

Returns whether the given ID refers to a valid para.

Paras that are onboarding or offboarding are not included.

pub fn is_parachain(id: ParaId) -> bool

Whether a para ID corresponds to any live parachain.

Includes parachains which will downgrade to a parathread in the future.

pub fn is_parathread(id: ParaId) -> bool

Whether a para ID corresponds to any live parathread.

Includes parathreads which will upgrade to parachains in the future.

pub fn test_on_new_session()

Test function for triggering a new session in this pallet.

pub fn heads_insert(para_id: &ParaId, head_data: HeadData)

Trait Implementations§

impl<T> Benchmarking for Pallet<T>where
T: Config + Config,

fn benchmarks(extra: bool) -> Vec<BenchmarkMetadata> ⓘ

Get the benchmarks available for this pallet. Generally there is one benchmark per extrinsic, so these are sometimes just called “extrinsics”. Read more

fn run_benchmark(
 extrinsic: &[u8],
 c: &[(BenchmarkParameter, u32)],
 whitelist: &[TrackedStorageKey],
 verify: bool,
 internal_repeats: u32
) -> Result<Vec<BenchmarkResult>, BenchmarkError>

Run the benchmarks for this pallet.

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> 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. Read more

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 try_state(_n: BlockNumber) -> Result<(), &'static str>

Execute the sanity checks of this pallet, per block. Read more

fn pre_upgrade() -> Result<(), &'static str>

Execute some pre-checks prior to a runtime upgrade. Read more

fn post_upgrade() -> Result<(), &'static str>

Execute some post-checks after a runtime 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

fn pre_upgrade() -> Result<(), &'static str>

Execute some pre-checks prior to a runtime upgrade. Read more

fn post_upgrade() -> Result<(), &'static str>

Execute some post-checks after a runtime 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 ==. Read more

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. Read more

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

fn storage_info() -> Vec<StorageInfo> ⓘ

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

type Call = Call<T>

The call to validate

fn validate_unsigned(
_source: TransactionSource,
call: &Self::Call
) -> TransactionValidity

Return the validity of the call Read more

fn pre_dispatch(_call: &Self::Call) -> Result<(), TransactionValidityError>

Validate the call right before dispatch. Read more

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

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T: ?Sized,

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Immutably borrows from an owned value. Read more

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T: ?Sized,

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Mutably borrows from an owned value. Read more

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Self: TryFrom<T>,

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Self: TryInto<T>,

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

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

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Self: Binary,

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

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

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Self: UpperHex,

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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Calls U::from(self).

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impl OnRuntimeUpgradeHelpersExt for Uwhere
U: OnRuntimeUpgrade,

fn storage_key(ident: &str) -> [u8; 32]

Generate a storage key unique to this runtime upgrade. Read more

fn get_temp_storage<T>(at: &str) -> Option<T>where
T: Decode,

Get temporary storage data written by Self::set_temp_storage. Read more

fn set_temp_storage<T>(data: T, at: &str)where
T: Encode,

Write some temporary data to a specific storage that can be read (potentially in post-upgrade hook) via Self::get_temp_storage. Read more

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

fn migrate(db_weight: &RuntimeDbWeight) -> Weight

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

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

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 R: 'a,

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 &'a mut self,
 func: impl FnOnce(&'a mut B) -> R
) -> Rwhere
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 R: 'a,

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 Self: Deref<Target = T>,
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 R: 'a,

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

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Initializes a with the given initializer. Read more

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Should always be Self

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

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const: unstable · source§

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