Struct FeeRate

pub struct FeeRate(/* private fields */);

Represents fee rate.

This is an integer newtype representing fee rate in sat/kwu. It provides protection against mixing up the types as well as basic formatting features.

Implementations

impl FeeRate

pub const ZERO: FeeRate = _

0 sat/kwu.

Equivalent to MIN, may better express intent in some contexts.

pub const MIN: FeeRate = FeeRate::ZERO

Minimum possible value (0 sat/kwu).

Equivalent to ZERO, may better express intent in some contexts.

pub const MAX: FeeRate = _

Maximum possible value.

pub const BROADCAST_MIN: FeeRate = _

Minimum fee rate required to broadcast a transaction.

The value matches the default Bitcoin Core policy at the time of library release.

pub const DUST: FeeRate = _

Fee rate used to compute dust amount.

pub const fn from_sat_per_kwu(sat_kwu: u64) -> FeeRate

Constructs FeeRate from satoshis per 1000 weight units.

pub fn from_sat_per_vb(sat_vb: u64) -> Option<FeeRate>

Constructs FeeRate from satoshis per virtual bytes.

Errors

Returns None on arithmetic overflow.

pub const fn from_sat_per_vb_unchecked(sat_vb: u64) -> FeeRate

Constructs FeeRate from satoshis per virtual bytes without overflow check.

pub const fn to_sat_per_kwu(self) -> u64

Returns raw fee rate.

Can be used instead of into() to avoid inference issues.

pub const fn to_sat_per_vb_floor(self) -> u64

Converts to sat/vB rounding down.

pub const fn to_sat_per_vb_ceil(self) -> u64

Converts to sat/vB rounding up.

pub fn checked_mul(self, rhs: u64) -> Option<FeeRate>

Checked multiplication.

Computes self * rhs returning None if overflow occurred.

pub fn checked_div(self, rhs: u64) -> Option<FeeRate>

Checked division.

Computes self / rhs returning None if rhs == 0.

pub fn checked_mul_by_weight(self, rhs: Weight) -> Option<Amount>

Checked weight multiplication.

Computes the absolute fee amount for a given Weight at this fee rate.

None is returned if an overflow occurred.

pub fn fee_wu(self, weight: Weight) -> Option<Amount>

Calculates fee by multiplying this fee rate by weight, in weight units, returning None if overflow occurred.

This is equivalent to Self::checked_mul_by_weight().

pub fn fee_vb(self, vb: u64) -> Option<Amount>

Calculates fee by multiplying this fee rate by weight, in virtual bytes, returning None if overflow occurred.

This is equivalent to converting vb to weight using Weight::from_vb and then calling Self::fee_wu(weight).

Trait Implementations

impl Clone for FeeRate

fn clone(&self) -> FeeRate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FeeRate

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FeeRate

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for FeeRate

Alternative will display the unit.

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

Formats the value using the given formatter.

impl From<FeeRate> for u64

fn from(value: FeeRate) -> u64

Converts to this type from the input type.

impl FromStr for FeeRate

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<FeeRate, <FeeRate as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for FeeRate

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Mul<FeeRate> for Weight

Computes ceiling so that fee computation is conservative.

type Output = Amount

The resulting type after applying the * operator.

fn mul(self, rhs: FeeRate) -> <Weight as Mul<FeeRate>>::Output

Performs the * operation.

impl Mul<Weight> for FeeRate

type Output = Amount

The resulting type after applying the * operator.

fn mul(self, rhs: Weight) -> <FeeRate as Mul<Weight>>::Output

Performs the * operation.

impl Ord for FeeRate

fn cmp(&self, other: &FeeRate) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FeeRate

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for FeeRate

fn partial_cmp(&self, other: &FeeRate) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for FeeRate

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 TryFrom<&str> for FeeRate

type Error = ParseIntError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<FeeRate, <FeeRate as TryFrom<&str>>::Error>

Performs the conversion.

impl TryFrom<Box<str>> for FeeRate

type Error = ParseIntError

The type returned in the event of a conversion error.

fn try_from( s: Box<str>, ) -> Result<FeeRate, <FeeRate as TryFrom<Box<str>>>::Error>

Performs the conversion.

impl TryFrom<String> for FeeRate

type Error = ParseIntError

The type returned in the event of a conversion error.

fn try_from(s: String) -> Result<FeeRate, <FeeRate as TryFrom<String>>::Error>

Performs the conversion.

impl Copy for FeeRate

impl Eq for FeeRate

impl StructuralPartialEq for FeeRate