Struct cfx_storage::NodeRefDeltaMptCompact

pub struct NodeRefDeltaMptCompact { /* private fields */ }

The MSB is used to indicate if a node is in mem or on disk, the rest 31 bits specifies the index of the node in the memory region.

It’s necessary to use MaybeNodeRef in ChildrenTable because it consumes less space than NodeRef.

Implementations

impl NodeRefDeltaMptCompact

pub const DIRTY_SLOT_LIMIT: u32 = 2_147_483_647u32

Valid dirty slot ranges from [0..DIRTY_SLOT_LIMIT). The DIRTY_SLOT_LIMIT is reserved for MaybeNodeRefDeltaMptCompact#NULL.

pub fn new(value: CompactNodeRef) -> Self

Trait Implementations

impl Clone for NodeRefDeltaMptCompact

fn clone(&self) -> NodeRefDeltaMptCompact

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NodeRefDeltaMptCompact

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

Formats the value using the given formatter.

impl Decodable for NodeRefDeltaMptCompact

fn decode(rlp: &Rlp<'_>) -> Result<Self, DecoderError>

Decode a value from RLP bytes

impl Encodable for NodeRefDeltaMptCompact

fn rlp_append(&self, s: &mut RlpStream)

Append a value to the stream

fn rlp_bytes(&self) -> Vec<u8>

Get rlp-encoded bytes for this instance

impl From<NodeRefDeltaMpt> for NodeRefDeltaMptCompact

fn from(node: NodeRefDeltaMpt) -> Self

Converts to this type from the input type.

impl From<NodeRefDeltaMptCompact> for NodeRefDeltaMpt

fn from(x: NodeRefDeltaMptCompact) -> Self

Converts to this type from the input type.

impl MallocSizeOf for NodeRefDeltaMptCompact

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.

impl PartialEq for NodeRefDeltaMptCompact

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

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

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.

impl Copy for NodeRefDeltaMptCompact

impl Eq for NodeRefDeltaMptCompact

impl StructuralPartialEq for NodeRefDeltaMptCompact