Struct ReserveReadRequest 

pub struct ReserveReadRequest {
    pub lock_key_bytes: Vec<u8>,
    pub vshard: u32,
    pub owner_bytes: Option<Vec<u8>>,
    pub deadline_remaining_ms: u64,
    pub trace_id: [u8; 16],
}

Coordinator → sequencer-leader routed reserve-read request.

Carries the LockKey as opaque msgpack bytes (lock_key_bytes); the leader decodes it and assign-only reserves the read lock, minting an owner if owner_bytes is None. The deadline_remaining_ms / trace_id fields mirror SubmitCalvinInboxRequest so the leader-side handler shares the same deadline / tracing prologue as the other one-shot RPCs; the leader bounds the reserve by deadline_remaining_ms.

Cross-version safety: new optional fields should be added as Option<T>.

Fields

lock_key_bytes: Vec<u8>

The LockKey to reserve, encoded with zerompk::to_msgpack_vec.

vshard: u32

owner_bytes: Option<Vec<u8>>

Pre-assigned owner (TxnIdWire, msgpack-encoded), when the reservation is being made on behalf of an already-known owner. None means the leader mints a new owner.

deadline_remaining_ms: u64

Deadline budget remaining for the reserve on the leader (ms).

trace_id: [u8; 16]

Trait Implementations

impl Archive for ReserveReadRequest

where Vec<u8>: Archive, u32: Archive, Option<Vec<u8>>: Archive, u64: Archive, [u8; 16]: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedReserveReadRequest

The archived representation of this type.

type Resolver = ReserveReadRequestResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for ReserveReadRequest

fn clone(&self) -> ReserveReadRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReserveReadRequest

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

Formats the value using the given formatter.

impl<__D: Fallible + ?Sized> Deserialize<ReserveReadRequest, __D> for Archived<ReserveReadRequest>

where Vec<u8>: Archive, <Vec<u8> as Archive>::Archived: Deserialize<Vec<u8>, __D>, u32: Archive, <u32 as Archive>::Archived: Deserialize<u32, __D>, Option<Vec<u8>>: Archive, <Option<Vec<u8>> as Archive>::Archived: Deserialize<Option<Vec<u8>>, __D>, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>, [u8; 16]: Archive, <[u8; 16] as Archive>::Archived: Deserialize<[u8; 16], __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<ReserveReadRequest, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl<__S: Fallible + ?Sized> Serialize<__S> for ReserveReadRequest

where Vec<u8>: Serialize<__S>, u32: Serialize<__S>, Option<Vec<u8>>: Serialize<__S>, u64: Serialize<__S>, [u8; 16]: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.