Module timeout 

Timeout classification and enforcement APIs.

This module provides two distinct concerns for timeout handling:

• Classification: Pure measurement of elapsed time and timeout status without side effects. See TimeoutClassifier.
• Enforcement: Active timeout control via cancellation. See TimeoutGuard.

Structs

CancellableExecution

Output of a guarded execution with cancellation flag.

GuardedExecution

Output of a guarded execution.

SystemTimeoutClock

System clock implementation for timeout classification using Instant.

TimeoutClassifier

Pure timeout classifier for observability.

TimeoutFailure

Explicit timeout failure data.

TimeoutGuard

Deterministic timeout guard wrapper with enforcement.

Enums

TimeoutClassification

Classification of attempt execution relative to timeout constraints.

TimeoutReasonCode

Inspectable reason codes for timeout classification outcomes.

Traits

TimeoutClock

Monotonic clock abstraction used by timeout classification.

Functions

classify_timeout

Deterministically classifies elapsed execution relative to configured timeout.