Crate etdl_core 

Runtime library for code generated from Event Tree Definition Language (ETDL) documents — the reliability-aware, event-driven DSL based on IEC 62502 event tree and IEC 61025 fault tree analysis.

Generated handlers use these components to record branches and failures against build-time-resolved probabilities, enforce declared retry policies, detect SLA anomalies, and inject chaos in controlled environments.

Components

• BranchMonitor — records taken branches and failures per node with their declared probabilities
• RetryPolicy / BackoffStrategy — async retry with exponential or fixed backoff and a total time budget
• SlaTracker — rolling-window anomaly detection (ETDL_SLA_WINDOW, ETDL_SLA_THRESHOLD)
• ChaosController — seeded, node-scoped failure injection, guarded off in production via ETDL_ENV
• inject_traceparent — W3C trace context propagation

Example

use etdl_core::{BranchMonitor, BackoffStrategy, RetryPolicy};
use std::time::Duration;

let mut monitor = BranchMonitor::new("InventoryCheckBarrier");
monitor.record_branch("SUCCESS", 0.95);

let retry = RetryPolicy {
    max_attempts: 3,
    backoff_ms: 250,
    strategy: BackoffStrategy::Exponential,
};

Re-exports

pub use monitor::BranchMonitor;

pub use retry::BackoffStrategy;

pub use retry::RetryPolicy;

pub use sla::SlaTracker;

pub use chaos::ChaosController;

pub use telemetry::inject_traceparent;

pub use telemetry::Error as WorkflowError;

Modules

chaos

monitor

retry

sla

telemetry