Function addProcessHandlerIfNeeded

packages/utils/processLauncher.ts:117–122

(name: 'exit' | 'SIGINT' | 'SIGTERM' | 'SIGHUP')

  SIGHUP: sighupHandler,
};
function addProcessHandlerIfNeeded(name: 'exit' | 'SIGINT' | 'SIGTERM' | 'SIGHUP') {
  if (!installedHandlers.has(name)) {
    installedHandlers.add(name);
    process.on(name, processHandlers[name]);
  }
}
function removeProcessHandlersIfNeeded() {
  if (killSet.size)
    return;