Module relay_chain 

Host functions for the relay chain runtime.

Modules

allocator

Wasm only interface that provides functions for calling into the allocator.

crypto

Interfaces for working with crypto related types from within the runtime.

default_child_storage

Interface for accessing the child storage for default child trie, from within the runtime.

hashing

Interface that provides functions for hashing with different algorithms.

logging

Interface that provides functions for logging from within the runtime.

misc

Interface that provides miscellaneous functions for communicating between the runtime and the node.

offchain

Interface that provides functions to access the offchain functionality.

offchain_index

Interface that provides functions to access the Offchain DB.

panic_handler

WASM-only interface which allows for aborting the execution in case of an unrecoverable error.

storage

Interface for accessing the storage from within the runtime.

transaction_index

Interface that provides transaction indexing API.

trie

Interface that provides trie related functionality.

wasm_tracing

Interface to provide tracing facilities for wasm. Modelled after tokios tracing-crate interfaces. See sp-tracing for more information.

Structs

MultiRemovalResults

Results concerning an operation to remove many keys.

UseDalekExt

Extension to signal to [crypt::ed25519_verify] to use the dalek crate.

Enums

EcdsaVerifyError

Error verifying ECDSA signature

KillStorageResult

The outcome of calling storage_kill. Returned value is the number of storage items removed from the backend from making the storage_kill call.

Functions

init_tracing

Initialize tracing of sp_tracing not necessary – noop. To enable build when not both substrate_runtime and with-tracing-feature.

unreachable

Crashes the execution of the program.

Type Aliases

SubstrateHostFunctions

The host functions Substrate provides for the Wasm runtime environment.

TestExternalities

Type alias for Externalities implementation used in tests.