Struct zebra_chain::transaction::VerifiedUnminedTx

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pub struct VerifiedUnminedTx {
    pub transaction: UnminedTx,
    pub miner_fee: Amount<NonNegative>,
    pub legacy_sigop_count: u64,
    pub conventional_actions: u32,
    pub unpaid_actions: u32,
    pub fee_weight_ratio: f32,
}
Expand description

A verified unmined transaction, and the corresponding transaction fee.

This transaction has been fully verified, in the context of the mempool.

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§transaction: UnminedTx

The unmined transaction.

§miner_fee: Amount<NonNegative>

The transaction fee for this unmined transaction.

§legacy_sigop_count: u64

The number of legacy signature operations in this transaction’s transparent inputs and outputs.

§conventional_actions: u32

The number of conventional actions for transaction, as defined by ZIP-317.

The number of actions is limited by MAX_BLOCK_BYTES, so it fits in a u32.

§unpaid_actions: u32

The number of unpaid actions for transaction, as defined by ZIP-317 for block production.

The number of actions is limited by MAX_BLOCK_BYTES, so it fits in a u32.

§fee_weight_ratio: f32

The fee weight ratio for transaction, as defined by ZIP-317 for block production.

This is not consensus-critical, so we use f32 for efficient calculations when the mempool holds a large number of transactions.

Implementations§

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impl VerifiedUnminedTx

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pub fn new( transaction: UnminedTx, miner_fee: Amount<NonNegative>, legacy_sigop_count: u64, ) -> Result<Self, Error>

Create a new verified unmined transaction from an unmined transaction, its miner fee, and its legacy sigop count.

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pub fn pays_conventional_fee(&self) -> bool

Returns true if the transaction pays at least the ZIP-317 conventional fee.

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pub fn cost(&self) -> u64

The cost in bytes of the transaction, as defined in ZIP-401.

A reflection of the work done by the network in processing them (proof and signature verification; networking overheads; size of in-memory data structures).

Each transaction has a cost, which is an integer defined as…

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pub fn eviction_weight(&self) -> u64

The computed eviction weight of a verified unmined transaction as part of the mempool set, as defined in ZIP-317 and ZIP-401.

§Standard Rule

Each transaction also has an eviction weight, which is cost + low_fee_penalty, where low_fee_penalty is 40000 if the transaction pays a fee less than the conventional fee, otherwise 0. The conventional fee is currently defined in ZIP-317.

zcashd and zebrad limit the size of the mempool as described in ZIP-401. This specifies a low fee penalty that is added to the “eviction weight” if the transaction pays a fee less than the conventional transaction fee. This threshold is modified to use the new conventional fee formula.

Trait Implementations§

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impl Arbitrary for VerifiedUnminedTx

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type Parameters = ()

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
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fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
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type Strategy = BoxedStrategy<VerifiedUnminedTx>

The type of Strategy used to generate values of type Self.
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fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
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impl Clone for VerifiedUnminedTx

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fn clone(&self) -> VerifiedUnminedTx

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for VerifiedUnminedTx

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

Formats the value using the given formatter. Read more
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impl Display for VerifiedUnminedTx

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

Formats the value using the given formatter. Read more
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impl FromIterator<VerifiedUnminedTx> for AuthDataRoot

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fn from_iter<I>(transactions: I) -> Self

Creates a value from an iterator. Read more
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impl FromIterator<VerifiedUnminedTx> for Root

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fn from_iter<I>(transactions: I) -> Self

Creates a value from an iterator. Read more
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impl PartialEq for VerifiedUnminedTx

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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Change the background color to green
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Change the background color to yellow
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Change the foreground color to blue
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Change the background color to blue
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Change the foreground color to magenta
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Change the background color to magenta
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Change the foreground color to purple
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Change the background color to purple
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Change the foreground color to cyan
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Change the background color to cyan
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Change the foreground color to white
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Change the background color to white
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Change the foreground color to bright black
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Change the background color to bright black
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Change the foreground color to bright red
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fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>

Change the background color to bright red
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Change the foreground color to bright green
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Change the background color to bright green
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Change the foreground color to bright yellow
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Change the background color to bright yellow
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Change the foreground color to bright blue
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Change the background color to bright blue
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fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright magenta
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fn on_bright_magenta(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright magenta
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Change the foreground color to bright purple
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Change the background color to bright purple
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Change the foreground color to bright cyan
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Change the background color to bright cyan
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Change the foreground color to bright white
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Change the background color to bright white
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Make the text bold
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Make the text dim
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fn italic(&self) -> ItalicDisplay<'_, Self>

Make the text italicized
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fn underline(&self) -> UnderlineDisplay<'_, Self>

Make the text italicized
Make the text blink
Make the text blink (but fast!)
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fn reversed(&self) -> ReversedDisplay<'_, Self>

Swap the foreground and background colors
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Hide the text
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Cross out the text
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where Color: DynColor,

Set the foreground color at runtime. Only use if you do not know which color will be used at compile-time. If the color is constant, use either OwoColorize::fg or a color-specific method, such as OwoColorize::green, Read more
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Set the background color at runtime. Only use if you do not know what color to use at compile-time. If the color is constant, use either OwoColorize::bg or a color-specific method, such as OwoColorize::on_yellow, Read more
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Set the foreground color to a specific RGB value.
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fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the background color to a specific RGB value.
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fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>

Sets the foreground color to an RGB value.
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fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>

Sets the background color to an RGB value.
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Apply a runtime-determined style
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more