Function tryBindServer

packages/vite/src/node/http.ts:190–214

(
  httpServer: HttpServer,
  port: number,
  host: string | undefined,
)

}

async function tryBindServer(
  httpServer: HttpServer,
  port: number,
  host: string | undefined,
): Promise<
  { success: true } | { success: false; error: NodeJS.ErrnoException }
> {
  return new Promise((resolve) => {
    const onError = (e: NodeJS.ErrnoException) => {
      httpServer.off('error', onError)
      httpServer.off('listening', onListening)
      resolve({ success: false, error: e })
    }
    const onListening = () => {
      httpServer.off('error', onError)
      httpServer.off('listening', onListening)
      resolve({ success: true })
    }

    httpServer.on('error', onError)
    httpServer.on('listening', onListening)

    httpServer.listen(port, host)
  })
}

const MAX_PORT = 65535