Struct sc_client_api::in_mem::Backend[][src]

pub struct Backend<Block: BlockT> where
    Block::Hash: Ord
{ /* fields omitted */ }
Expand description

In-memory backend. Keeps all states and blocks in memory.

Warning: Doesn’t support all the features necessary for a proper database. Only use this struct for testing purposes. Do NOT use in production.

Implementations

Create a new instance of in-mem backend.

Trait Implementations

Insert auxiliary data into key-value store. Read more

Query auxiliary data from key-value store.

Associated block insertion operation type.

Associated blockchain backend type.

Associated state backend type.

Offchain workers local storage.

Begin a new block insertion transaction with given parent block id. Read more

Note an operation to contain state transition.

Commit block insertion.

Finalize block with given Id. Read more

Append justification to the block with the given Id. Read more

Returns reference to blockchain backend.

Returns current usage statistics.

Returns reference to changes trie storage.

Returns a handle to offchain storage.

Returns state backend with post-state of given block.

Attempts to revert the chain by n blocks. If revert_finalized is set it will attempt to revert past any finalized block, this is unsafe and can potentially leave the node in an inconsistent state. Read more

Discard non-best, unfinalized leaf block.

Gain access to the import lock around this backend. Read more

Returns true if state for given block is available.

Insert auxiliary data into key-value store.

Query auxiliary data from key-value store.

Returns true if the state for given block is available locally.

Returns reference to blockchain backend. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

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

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

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

Performs the conversion.

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

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

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

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

Performs the conversion.

Get a reference to the inner from the outer.

Get a mutable reference to the inner from the outer.

The alignment of pointer.

The type for initializers.

Initializes a with the given initializer. Read more

Dereferences the given pointer. Read more

Mutably dereferences the given pointer. Read more

Drops the object pointed to by the given pointer. Read more

Should always be Self

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

Consume self to return an equivalent value of T. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The counterpart to unchecked_from.

Consume self to return an equivalent value of T.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more