Struct pallet_gear::pallet::Pallet

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pub struct Pallet<T>(/* private fields */);
Expand description

The Pallet struct, the main type that implements traits and standalone functions within the pallet.

Implementations§

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impl<T: Config> Pallet<T>
where T::AccountId: Origin,

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pub fn spend_gas( to: Option<<T as Config>::AccountId>, id: impl Into<GasNodeIdOf<T>>, amount: GasBalanceOf<T> )

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impl<T: Config> Pallet<T>
where T::AccountId: Origin,

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pub fn set_block_number(bn: BlockNumberFor<T>)

Set gear block number.

For tests only.

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pub fn read_state_using_wasm( program_id: H256, payload: Vec<u8>, fn_name: Vec<u8>, wasm: Vec<u8>, argument: Option<Vec<u8>>, gas_allowance: Option<u64> ) -> Result<Vec<u8>, Vec<u8>>

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pub fn read_state( program_id: H256, payload: Vec<u8>, gas_allowance: Option<u64> ) -> Result<Vec<u8>, Vec<u8>>

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pub fn read_metahash( program_id: H256, gas_allowance: Option<u64> ) -> Result<H256, Vec<u8>>

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pub fn calculate_gas_info( source: H256, kind: HandleKind, payload: Vec<u8>, value: u128, allow_other_panics: bool, initial_gas: Option<u64>, gas_allowance: Option<u64> ) -> Result<GasInfo, Vec<u8>>

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pub fn calculate_reply_for_handle( origin: H256, destination: H256, payload: Vec<u8>, gas_limit: u64, value: u128, allowance_multiplier: u64 ) -> Result<ReplyInfo, Vec<u8>>

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pub fn run_with_ext_copy<R, F: FnOnce() -> R>(f: F) -> R

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pub fn is_initialized(program_id: ProgramId) -> bool

Returns true if a program has been successfully initialized

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pub fn is_active( builtins: &impl BuiltinDispatcher, program_id: ProgramId ) -> bool

Returns true if program_id is that of a in active status or the builtin actor.

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pub fn is_terminated(program_id: ProgramId) -> bool

Returns true if id is a program and the program has terminated status.

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pub fn is_exited(program_id: ProgramId) -> bool

Returns true if id is a program and the program has exited status.

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pub fn program_exists( builtins: &impl BuiltinDispatcher, program_id: ProgramId ) -> bool

Returns true if there is a program with the specified program_id`` (it may be paused) or this program_id` belongs to the built-in actor.

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pub fn exit_inheritor_of(program_id: ProgramId) -> Option<ProgramId>

Returns exit argument of an exited program.

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pub fn termination_inheritor_of(program_id: ProgramId) -> Option<ProgramId>

Returns inheritor of terminated (failed it’s init) program.

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pub fn next_message_id(user_id: H256) -> MessageId

Returns MessageId for newly created user message.

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pub fn process_tasks(ext_manager: &mut ExtManager<T>)

Delayed tasks processing.

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pub fn run_call(max_gas: Option<GasBalanceOf<T>>) -> Call<T>

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impl<T: Config> Pallet<T>
where T::AccountId: Origin,

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pub fn upload_code( origin: OriginFor<T>, code: Vec<u8> ) -> DispatchResultWithPostInfo

Saves program code in storage.

The extrinsic was created to provide deploy program from program functionality. Anyone who wants to define a “factory” logic in program should first store the code and metadata for the “child” program in storage. So the code for the child will be initialized by program initialization request only if it exists in storage.

More precisely, the code and its metadata are actually saved in the storage under the hash of the code. The code hash is computed as Blake256 hash. At the time of the call the code hash should not be in the storage. If it was stored previously, call will end up with an CodeAlreadyExists error. In this case user can be sure, that he can actually use the hash of his program’s code bytes to define “program factory” logic in his program.

Parameters

  • code: wasm code of a program as a byte vector.

Emits the following events:

  • SavedCode(H256) - when the code is saved in storage.
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pub fn upload_program( origin: OriginFor<T>, code: Vec<u8>, salt: Vec<u8>, init_payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool ) -> DispatchResultWithPostInfo

Creates program initialization request (message), that is scheduled to be run in the same block.

There are no guarantees that initialization message will be run in the same block due to block gas limit restrictions. For example, when it will be the message’s turn, required gas limit for it could be more than remaining block gas limit. Therefore, the message processing will be postponed until the next block.

ProgramId is computed as Blake256 hash of concatenated bytes of code + salt. (todo #512 code_hash + salt) Such ProgramId must not exist in the Program Storage at the time of this call.

There is the same guarantee here as in upload_code. That is, future program’s code and metadata are stored before message was added to the queue and processed.

The origin must be Signed and the sender must have sufficient funds to pay for gas and value (in case the latter is being transferred).

Parameters:

  • code: wasm code of a program as a byte vector.
  • salt: randomness term (a seed) to allow programs with identical code to be created independently.
  • init_payload: encoded parameters of the wasm module init function.
  • gas_limit: maximum amount of gas the program can spend before it is halted.
  • value: balance to be transferred to the program once it’s been created.

Emits the following events:

  • InitMessageEnqueued(MessageInfo) when init message is placed in the queue.
§Note

Faulty (uninitialized) programs still have a valid addresses (program ids) that can deterministically be derived on the caller’s side upfront. It means that if messages are sent to such an address, they might still linger in the queue.

In order to mitigate the risk of users’ funds being sent to an address, where a valid program should have resided, while it’s not, such “failed-to-initialize” programs are not silently deleted from the program storage but rather marked as “ghost” programs. Ghost program can be removed by their original author via an explicit call. The funds stored by a ghost program will be release to the author once the program has been removed.

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pub fn create_program( origin: OriginFor<T>, code_id: CodeId, salt: Vec<u8>, init_payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool ) -> DispatchResultWithPostInfo

Creates program via code_id from storage.

Parameters:

  • code_id: wasm code id in the code storage.
  • salt: randomness term (a seed) to allow programs with identical code to be created independently.
  • init_payload: encoded parameters of the wasm module init function.
  • gas_limit: maximum amount of gas the program can spend before it is halted.
  • value: balance to be transferred to the program once it’s been created.

Emits the following events:

  • InitMessageEnqueued(MessageInfo) when init message is placed in the queue.
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For the details of this extrinsic, see upload_code.

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pub fn send_message( origin: OriginFor<T>, destination: ProgramId, payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool ) -> DispatchResultWithPostInfo

Sends a message to a program or to another account.

The origin must be Signed and the sender must have sufficient funds to pay for gas and value (in case the latter is being transferred).

To avoid an undefined behavior a check is made that the destination address is not a program in uninitialized state. If the opposite holds true, the message is not enqueued for processing.

Parameters:

  • destination: the message destination.
  • payload: in case of a program destination, parameters of the handle function.
  • gas_limit: maximum amount of gas the program can spend before it is halted.
  • value: balance to be transferred to the program once it’s been created.

Emits the following events:

  • DispatchMessageEnqueued(MessageInfo) when dispatch message is placed in the queue.
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pub fn send_reply( origin: OriginFor<T>, reply_to_id: MessageId, payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool ) -> DispatchResultWithPostInfo

Send reply on message in Mailbox.

Removes message by given MessageId from callers Mailbox: rent funds become free, associated with the message value transfers from message sender to extrinsic caller.

Generates reply on removed message with given parameters and pushes it in MessageQueue.

NOTE: source of the message in mailbox guaranteed to be a program.

NOTE: only user who is destination of the message, can claim value or reply on the message from mailbox.

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pub fn claim_value( origin: OriginFor<T>, message_id: MessageId ) -> DispatchResultWithPostInfo

Claim value from message in Mailbox.

Removes message by given MessageId from callers Mailbox: rent funds become free, associated with the message value transfers from message sender to extrinsic caller.

NOTE: only user who is destination of the message, can claim value or reply on the message from mailbox.

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pub fn run( origin: OriginFor<T>, max_gas: Option<GasBalanceOf<T>> ) -> DispatchResultWithPostInfo

Process message queue

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pub fn set_execute_inherent(origin: OriginFor<T>, value: bool) -> DispatchResult

Sets ExecuteInherent flag.

Requires root origin (eventually, will only be set via referendum)

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impl<T: Config> Pallet<T>
where T::AccountId: Origin,

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pub fn send_message_impl( origin: <T as Config>::AccountId, destination: ProgramId, payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool, gas_sponsor: Option<<T as Config>::AccountId> ) -> DispatchResultWithPostInfo

Underlying implementation of GearPallet::send_message.

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pub fn send_reply_impl( origin: <T as Config>::AccountId, reply_to_id: MessageId, payload: Vec<u8>, gas_limit: u64, value: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, keep_alive: bool, gas_sponsor: Option<<T as Config>::AccountId> ) -> DispatchResultWithPostInfo

Underlying implementation of GearPallet::send_reply.

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pub fn upload_code_impl( origin: <T as Config>::AccountId, code: Vec<u8> ) -> DispatchResultWithPostInfo

Underlying implementation of GearPallet::upload_code.

Trait Implementations§

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impl<T: Config> Callable<T> for Pallet<T>
where T::AccountId: Origin,

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impl<T> Clone for Pallet<T>

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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
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impl<T> Debug for Pallet<T>

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

Formats the value using the given formatter. Read more
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impl<T: Config> Get<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>

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fn get() -> BlockNumberFor<T>

Return the current value.
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impl<T: Config> GetStorageVersion for Pallet<T>

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type CurrentStorageVersion = StorageVersion

This will be filled out by the pallet macro. Read more
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fn current_storage_version() -> Self::CurrentStorageVersion

Returns the current storage version as supported by the pallet.
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fn on_chain_storage_version() -> StorageVersion

Returns the on-chain storage version of the pallet as stored in the storage.
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impl<T: Config> Hooks<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>
where T::AccountId: Origin,

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

Initialization

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fn on_finalize(bn: BlockNumberFor<T>)

Finalization

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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
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fn on_runtime_upgrade() -> Weight

Hook executed when a code change (aka. a “runtime upgrade”) is detected by FRAME. Read more
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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 wasm runtime. Read more
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fn integrity_test()

Check the integrity of this pallet’s configuration. Read more
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impl<T: Config> IntegrityTest for Pallet<T>
where T::AccountId: Origin,

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fn integrity_test()

See [Hooks::integrity_test].
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impl<T: Config> OffchainWorker<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>
where T::AccountId: Origin,

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fn offchain_worker(n: BlockNumberFor<T>)

This function is being called after every block import (when fully synced). Read more
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impl<T: Config> OnFinalize<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>
where T::AccountId: Origin,

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fn on_finalize(n: BlockNumberFor<T>)

See [Hooks::on_finalize].
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impl<T: Config> OnGenesis for Pallet<T>

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fn on_genesis()

Something that should happen at genesis.
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impl<T: Config> OnIdle<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>
where T::AccountId: Origin,

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

See [Hooks::on_idle].
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impl<T: Config> OnInitialize<<<<T as Config>::Block as HeaderProvider>::HeaderT as Header>::Number> for Pallet<T>
where T::AccountId: Origin,

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

See [Hooks::on_initialize].
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impl<T: Config> OnRuntimeUpgrade for Pallet<T>
where T::AccountId: Origin,

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fn on_runtime_upgrade() -> Weight

See [Hooks::on_runtime_upgrade].
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impl<T: Config> PalletInfoAccess for Pallet<T>

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fn index() -> usize

Index of the pallet as configured in the runtime.
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fn name() -> &'static str

Name of the pallet as configured in the runtime.
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fn name_hash() -> [u8; 16]

Two128 hash of name.
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fn module_name() -> &'static str

Name of the Rust module containing the pallet.
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fn crate_version() -> CrateVersion

Version of the crate containing the pallet.
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impl<T: Config> PalletsInfoAccess for Pallet<T>

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fn count() -> usize

The number of pallets’ information that this type represents. Read more
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fn infos() -> Vec<PalletInfoData>

All of the pallets’ information that this type represents.
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impl<T> PartialEq for Pallet<T>

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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.
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impl<T: Config> QueueRunner for Pallet<T>
where T::AccountId: Origin,

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type Gas = <<T as Config>::GasProvider as Provider>::Balance

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fn run_queue(initial_gas: Self::Gas) -> Self::Gas

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

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fn storage_info() -> Vec<StorageInfo>

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

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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.
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impl<T> Eq for Pallet<T>

Auto Trait Implementations§

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

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

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

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

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

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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Convert from a value of T into an equivalent instance of Option<Self>. Read more
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where Self: TryInto<T>,

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where Self: Into<T>,

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Deserializes using the given deserializer
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Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> UncheckedInto<T> for S
where T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<T, S> UniqueSaturatedInto<T> for S
where T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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impl<T> Upcastable for T
where T: Any + Send + Sync + 'static,

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fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref
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fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref
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fn upcast_any_box(self: Box<T>) -> Box<dyn Any>

upcast boxed dyn
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeDebug for T
where T: Debug,

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

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impl<T> Member for T
where T: Send + Sync + Debug + Eq + PartialEq + Clone + 'static,