在Dart中通过套接字传输文件的一种更有效的方法？

import 'dart:io';

void main() async {
  var server = await ServerSocket.bind(InternetAddress.loopbackIPv4, 4040);
  print('Server listening on port 4040...');

  await for (var socket in server) {
    handleClient(socket);
  }
}

void handleClient(Socket socket) async {
  print('Client connected from ${socket.remoteAddress}');

  // 读取文件
  var file = File('path/to/file.txt');
  var fileStream = file.openRead();

  // 发送文件大小
  var fileSize = await file.length();
  socket.write(fileSize.toUint32().toBytes());

  // 发送文件内容
  await fileStream.copyTo(socket);

  print('File sent to client');
  socket.close();
}

import 'dart:io';

void main() async {
  var socket = await Socket.connect(InternetAddress.loopbackIPv4, 4040);
  print('Connected to server');

  // 读取文件大小
  var fileSizeBytes = await socket.read(4);
  var fileSize = fileSizeBytes.toUint32();

  // 接收文件内容
  var file = File('path/to/received_file.txt');
  var fileStream = file.openWrite();
  var receivedBytes = 0;

  while (receivedBytes < fileSize) {
    var buffer = await socket.read(1024);
    fileStream.write(buffer);
    receivedBytes += buffer.length;
  }

  fileStream.close();
  print('File received');
  socket.close();
}