Module hostcall_queue 

Hostcall queue primitives with explicit reclamation telemetry.

The fast lane uses a bounded lock-free ring (ArrayQueue). When pressure exceeds ring capacity, requests spill into a bounded overflow deque to preserve FIFO ordering across the two lanes.

Re-exports

pub use crate::hostcall_s3_fifo::S3FifoFallbackReason;

Structs

BravoContentionConfig

Tuning knobs for deterministic BRAVO contention policy behavior.

BravoContentionState

Deterministic BRAVO-style contention policy state machine.

BravoPolicyDecision

One policy transition decision generated from an observation window.

BravoPolicyTelemetry

Snapshot of contention policy internals for diagnostics and regression tests.

ContentionSample

Observation bucket consumed by the BRAVO policy state machine.

HostcallEpochPin

HostcallQueueTelemetry

HostcallRequestQueue

S3FifoConfig

Deterministic admission configuration for S3-FIFO-inspired behavior.

S3FifoTelemetry

Lightweight diagnostics snapshot for S3-FIFO admission internals.

Enums

BravoBiasMode

BRAVO-style lock bias mode for metadata contention handling.

ContentionSignature

Deterministic contention signature computed from a fixed observation window.

HostcallQueueEnqueueResult

HostcallQueueMode

S3FifoMode

Runtime mode for S3-FIFO-inspired queue admission.

Constants

HOSTCALL_FAST_RING_CAPACITY

HOSTCALL_OVERFLOW_CAPACITY

Traits

QueueTenant

Optional per-request tenant key used for fairness/admission accounting.