Module circuit_breaker 

Per-proxy circuit breaker.

State machine:

CLOSED ──(failures ≥ threshold)──► OPEN
  ▲                                  │
  │                     (elapsed > half_open_after)
  │                                  ▼
(success)                        HALF_OPEN
  └──────────────────────────────────┘
                   or
HALF_OPEN ──(failure)──► OPEN  (timer reset)

Structs

CircuitBreaker

Lightweight, lock-free per-proxy circuit breaker.

Constants

STATE_CLOSED

STATE_HALF_OPEN

STATE_OPEN