[−][src]Crate sp_io

I/O host interface for substrate runtime. Substrate runtime standard library as compiled when linked with Rust's standard library.

Modules

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.
sandbox	Wasm-only interface that provides functions for interacting with the sandbox.
storage	Interface for accessing the storage from within the runtime.
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.

Crossing	Crossing is a helper wrapping any Encode-Decodeable type for transferring over the wasm barrier.
VerificationExt	The keystore extension to register/retrieve from the externalities.

Error verifying ECDSA signature

Initialize tracing of sp_tracing not necessary – noop. To enable build without std and with the with-tracing-feature.

SubstrateHostFunctions	The host functions Substrate provides for the Wasm runtime environment.
TestExternalities	Type alias for Externalities implementation used in tests.