TcpConnection 收到RST的情况, 是否TcpConnection 就无法 close？

[CottonTnT]

假如此时只注册了EPOLLIN, 对于 同时 EPOLLIN | EPOLLERR的情况，

void TcpConnection::handleRead(Timestamp receiveTime)
{
  loop_->assertInLoopThread();
  int savedErrno = 0;
  ssize_t n = inputBuffer_.readFd(channel_->fd(), &savedErrno);
  if (n > 0)
  {
    messageCallback_(shared_from_this(), &inputBuffer_, receiveTime);
  }
  else if (n == 0)
  {
    handleClose();
  }
  else // 这里没有去判断 ECONNRESET
  {
    errno = savedErrno;
    LOG_SYSERR << "TcpConnection::handleRead";
    handleError();
  }
}

对于 EPOLLERR 也只是打了日志

void TcpConnection::handleError()
{
  int err = sockets::getSocketError(channel_->fd());
  LOG_ERROR << "TcpConnection::handleError [" << name_
            << "] - SO_ERROR = " << err << " " << strerror_tl(err);
}
这种情况不在read < 0时去判断是否ECONNRESET错误，然后直接调用 handleClose吗

[CottonTnT]

import socket
import select
import time
import os

def send_and_rst(host, port, message=b"HELLO", wait_time=1):
    # 创建 TCP socket
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.setblocking(0)

    try:
        s.connect_ex((host, port))
        print(f"[+] Connecting to {host}:{port}")
        time.sleep(0.2)  # 等待连接建立

        # 发送数据
        s.sendall(message)
        print(f"[+] Sent data: {message}")

        # 等待一段时间
        time.sleep(wait_time)

        # 检查是否有数据可读
        rlist, _, _ = select.select([s], [], [], 0)
        if rlist:
            print("[!] Data available to read — closing fd to trigger RST")
            fd = s.fileno()
            os.close(fd)  # 直接关闭底层文件描述符，跳过优雅关闭
            return

        print("[*] No data received, closing normally")
        s.close()

    except Exception as e:
        print(f"[!] Error: {e}")
        s.close()

if __name__ == "__main__":
    # 示例：向本地 12345 端口发送
    send_and_rst("127.0.0.1", 2007)

我是用上述程序测试了muduo的EchoServer，muduo能正确处理RST的情况，当服务端接收到 RST时，在触发 handleError处理掉 错误事件后，下一轮 poll 会返回 EPOLLHUB，触发 handleClose