INNER CODE UNIT · JavaScript

gracefulShutdown

riclolsen/json-scada · src/OPC-UA-Server/index.js:84

  const gracefulShutdown = async (signal) => {
    if (isShuttingDown) return
    isShuttingDown = true
    Log.log('Received ' + signal + ', shutting down...')
    // force exit if a clean shutdown stalls (e.g. a hung endpoint)
    const forceTimer = setTimeout(() => {
      Log.log('Shutdown timed out, forcing exit.')
      process.exit(1)
    }, 10000)
    if (forceTimer.unref) forceTimer.unref()
    try {
      await shutdownServers()
    } catch (e) {
      Log.log('Error shutting down OPC-UA server(s): ' + e)
    }
    try {
      if (clientMongo) await clientMongo.close()
    } catch (e) {

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