xcecli_heartbeat() is XCECLI_FF_CALL-wrapped -- a deliberately non-retrying fire-and-forget path that does its own best-effort one-shot reconnect but never calls xcecli_invoke_rejoin() (that only fires from the write-call retry path). Left as-is, a controller failover with no in-flight write request would silently repair the transport connection without ever re-joining, permanently starving push notifications. runHeartbeat() gains two callback hooks fired at the right points -- onFailureToSuccess on a genuine transition, onSuccessTick on every successful tick thereafter -- wired directly to task 4.3's existing setNeedsRejoin()/checkAndPerformRejoin() from StartHeartbeat(). No second rejoin mechanism: checkAndPerformRejoin() is a cheap no-op when nothing is pending, so calling it unconditionally on every successful tick is safe and matches the requirement that retry isn't gated on the transition edge alone. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NNB4zGPCsHyDUCDJyMbiQN |
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