Struct RollbackGuard 

pub struct RollbackGuard {
    pub slot_number: u64,
    pub timestamp: i64,
    pub blockhash: Hash,
    pub first_slot_number: u64,
    pub first_previous_blockhash: Hash,
}

Reorg guard attached to query responses: the server’s current in-memory head window (its last block, plus the first slot of the window and that slot’s parent hash), so a consumer can detect a fork and unwind before committing. Absent when the server has no complete window to describe.

Shape mirrors the EVM RollbackGuard field-for-field with Solana naming (slot_number vs block_number, blockhash vs hash, first_previous_blockhash vs first_parent_hash).

Fields

slot_number: u64

The last slot in the server’s in-memory window.

timestamp: i64

Timestamp of the last block.

blockhash: Hash

Blockhash of the last block.

first_slot_number: u64

The first slot in the server’s in-memory window.

first_previous_blockhash: Hash

Previous blockhash of the first block in the window.

Trait Implementations

impl Clone for RollbackGuard

fn clone(&self) -> RollbackGuard

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RollbackGuard

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RollbackGuard

fn deserialize<__D>( __deserializer: __D, ) -> Result<RollbackGuard, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for RollbackGuard

impl PartialEq for RollbackGuard

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for RollbackGuard

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RollbackGuard