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QueryResponse

Enum QueryResponse 

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pub enum QueryResponse {
    Stats {
        active_connections: u64,
        events_processed: u64,
        journal_sequence: u64,
    },
    Position {
        account: AccountId,
        balances: [AccountBalance; 16],
        count: u8,
    },
    RequestSeqHwm {
        hwm: u64,
    },
}
Expand description

1:1 query responses returned directly from Application::apply, bypassing the fan-out scratch vec. Routed through OutputPayload::QueryResponse so the response stage can translate them to the public wire format.

Kept separate from ExecutionReport to avoid inflating that enum’s size with the large Position balance array (392 B vs ~64 B).

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Stats

Transport stats snapshot emitted in response to a QueryStats event. Internal — never journaled, never sent on the wire directly. The response stage translates this to ResponseKind::StatsHeader for the client.

Fields

§active_connections: u64
§events_processed: u64
§journal_sequence: u64
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Position

Account balance snapshot emitted in response to QueryPosition. Internal — translated to ResponseKind::PositionSnapshot on the wire. Fixed array sized for the maximum number of currencies per account; count reports how many entries are populated.

Fields

§account: AccountId
§balances: [AccountBalance; 16]
§count: u8
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RequestSeqHwm

Per-key request_seq HWM snapshot emitted in response to QueryRequestSeq. The engine returns the value its dedup gate has currently advanced to for the calling connection’s key; reconnecting clients should set their next outbound seq to hwm + 1 so subsequent requests bypass dedup. 0 for a key that has never authenticated before.

Fields

§hwm: u64

Trait Implementations§

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impl Clone for QueryResponse

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fn clone(&self) -> QueryResponse

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for QueryResponse

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impl Debug for QueryResponse

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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 Eq for QueryResponse

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impl PartialEq for QueryResponse

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for QueryResponse

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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.