Function createServerCloseFn

packages/vite/src/node/server/index.ts:1122–1158

(
  server: HttpServer | null,
)

}

export function createServerCloseFn(
  server: HttpServer | null,
): () => Promise<void> {
  if (!server) {
    return () => Promise.resolve()
  }

  let hasListened = false
  const openSockets = new Set<net.Socket>()

  server.on(class="st">'connection', (socket) => {
    openSockets.add(socket)
    socket.on(class="st">'close', () => {
      openSockets.delete(socket)
    })
  })

  server.once(class="st">'listening', () => {
    hasListened = true
  })

  return () =>
    new Promise<void>((resolve, reject) => {
      openSockets.forEach((s) => s.destroy())
      if (hasListened) {
        server.close((err) => {
          if (err) {
            reject(err)
          } else {
            resolve()
          }
        })
      } else {
        resolve()
      }
    })
}

function resolvedAllowDir(root: string, dir: string): string {
  return normalizePath(path.resolve(root, dir))