Function startMdmPoll

src/utils/settings/changeDetector.ts:381–418

* Start polling for MDM settings changes (registry/plist). * Takes a snapshot of current MDM settings and compares on each tick.

()

 * Takes a snapshot of current MDM settings and compares on each tick.
 */
function startMdmPoll(): void {
  // Capture initial snapshot (includes both admin MDM and user-writable HKCU)
  const initial = getMdmSettings()
  const initialHkcu = getHkcuSettings()
  lastMdmSnapshot = jsonStringify({
    mdm: initial.settings,
    hkcu: initialHkcu.settings,
  })

  mdmPollTimer = setInterval(() => {
    if (disposed) return

    void (async () => {
      try {
        const { mdm: current, hkcu: currentHkcu } = await refreshMdmSettings()
        if (disposed) return

        const currentSnapshot = jsonStringify({
          mdm: current.settings,
          hkcu: currentHkcu.settings,
        })

        if (currentSnapshot !== lastMdmSnapshot) {
          lastMdmSnapshot = currentSnapshot
          // Update the cache so sync readers pick up new values
          setMdmSettingsCache(current, currentHkcu)
          logForDebugging('Detected MDM settings change via poll')
          fanOut('policySettings')
        }
      } catch (error) {
        logForDebugging(`MDM poll error: ${errorMessage(error)}`)
      }
    })()
  }, testOverrides?.mdmPollInterval ?? MDM_POLL_INTERVAL_MS)

  // Don't let the timer keep the process alive
  mdmPollTimer.unref()
}

/**
 * Reset the settings cache, then notify all listeners.