Enum sp_runtime::generic::ChangesTrieSignal

pub enum ChangesTrieSignal {
    NewConfiguration(Option<ChangesTrieConfiguration>),
}

Available changes trie signals.

Variants

NewConfiguration(Option<ChangesTrieConfiguration>)

New changes trie configuration is enacted, starting from next block.

The block that emits this signal will contain changes trie (CT) that covers blocks range [BEGIN; current block], where BEGIN is (order matters):

• LAST_TOP_LEVEL_DIGEST_BLOCK+1 if top level digest CT has ever been created using current configuration AND the last top level digest CT has been created at block LAST_TOP_LEVEL_DIGEST_BLOCK;
• LAST_CONFIGURATION_CHANGE_BLOCK+1 if there has been CT configuration change before and the last configuration change happened at block LAST_CONFIGURATION_CHANGE_BLOCK;
• 1 otherwise.

Implementations

impl ChangesTrieSignal

pub fn as_new_configuration(&self) -> Option<&Option<ChangesTrieConfiguration>>

Try to cast this signal to NewConfiguration.

Trait Implementations

impl Clone for ChangesTrieSignal

fn clone(&self) -> ChangesTrieSignal

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChangesTrieSignal

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

Formats the value using the given formatter.

impl Decode for ChangesTrieSignal

fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Encode for ChangesTrieSignal

fn encode_to<__CodecOutputEdqy: Output>(
    &self,
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

pub fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

pub fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

pub fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

Convert self to a slice and then invoke the given closure with it.

impl EncodeLike<ChangesTrieSignal> for ChangesTrieSignal

impl Eq for ChangesTrieSignal

impl MallocSizeOf for ChangesTrieSignal

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself. If T::size_of is a constant, consider implementing constant_size as well.

pub fn constant_size() -> Option<usize>

Used to optimize MallocSizeOf implementation for collections like Vec and HashMap to avoid iterating over them unnecessarily. The Self: Sized bound is for object safety.

impl PartialEq<ChangesTrieSignal> for ChangesTrieSignal

fn eq(&self, other: &ChangesTrieSignal) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ChangesTrieSignal) -> bool

This method tests for !=.

impl StructuralEq for ChangesTrieSignal

impl StructuralPartialEq for ChangesTrieSignal