Struct VariableParameters 

#[repr(C)]
pub struct VariableParameters {
    pub volatility_accumulator: u32,
    pub volatility_reference: u32,
    pub index_reference: i32,
    pub _padding: [u8; 4],
    pub last_update_timestamp: i64,
    pub _padding_1: [u8; 8],
}

Parameters that changes based on dynamic of the market

Fields

volatility_accumulator: u32

Volatility accumulator measure the number of bin crossed since reference bin ID. Normally (without filter period taken into consideration), reference bin ID is the active bin of last swap. It affects the variable fee rate

volatility_reference: u32

Volatility reference is decayed volatility accumulator. It is always <= volatility_accumulator

index_reference: i32

Active bin id of last swap.

_padding: [u8; 4]

Padding for bytemuck safe alignment

last_update_timestamp: i64

Last timestamp the variable parameters was updated

_padding_1: [u8; 8]

Padding for bytemuck safe alignment

Implementations

impl VariableParameters

pub fn update_volatility_accumulator( &mut self, active_id: i32, static_params: &StaticParameters, ) -> Result<()>

volatility_accumulator = min(volatility_reference + num_of_bin_crossed, max_volatility_accumulator)

pub fn update_references( &mut self, active_id: i32, current_timestamp: i64, static_params: &StaticParameters, ) -> Result<()>

Update id, and volatility reference

pub fn update_volatility_parameter( &mut self, active_id: i32, current_timestamp: i64, static_params: &StaticParameters, ) -> Result<()>

Trait Implementations

impl Clone for VariableParameters

fn clone(&self) -> VariableParameters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VariableParameters

impl Debug for VariableParameters

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

Formats the value using the given formatter.

impl Default for VariableParameters

fn default() -> VariableParameters

Returns the “default value” for a type.

impl Pod for VariableParameters

impl Space for VariableParameters

const INIT_SPACE: usize

impl Zeroable for VariableParameters

fn zeroed() -> Self

Calls zeroed.