我在使用 boost asio 创建一个非常简单的基于 TCP 的服务器-客户端连接时遇到问题。当我从服务器上的客户端获得连接并进入处理 async_read_some 的方法时，我检查错误，并且总是收到错误 1236，它给出消息“网络连接已被本地系统中止”。
我刚刚开始使用 boost，所以我不太熟悉这些库的工作方式以及我可能做错了什么。我在下面提供了我的代码的精简版本：
/*Client connection code*/
ClientConnection::ClientConnection(boost::asio::io_service& io_service) : m_Socket(io_service)
{
}
ClientConnection::ClientConnectionPointer ClientConnection::Create(boost::asio::io_service& io_service)
{
return ClientConnection::ClientConnectionPointer(new ClientConnection(io_service));
}
void ClientConnection::handle_write(const boost::system::error_code& error, size_t bytes_transferred)
{
//once we've written our packet, just wait for more
m_Socket.async_read_some(boost::asio::buffer(m_IncomingBytesBuffer, MAX_BYTES_LENGTH),
boost::bind(&ClientConnection::handle_read, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
}
void ClientConnection::handle_read(const boost::system::error_code& error, size_t bytes_transferred)
{
if(!error)
{
//deal with the data that comes in here
}
else
{
std::cout << "Error reading port data" << std::endl;
std::cout << error.message() << std::endl;
}
}
tcp::socket& ClientConnection::GetSocket(void)
{
return m_Socket;
}
void ClientConnection::RunClient(void)
{
std::cout << "Client connected." << std::endl;
//start by reading data from the connection
m_Socket.async_read_some(boost::asio::buffer(m_IncomingBytesBuffer, MAX_BYTES_LENGTH),
boost::bind(&ClientConnection::handle_read, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
}
/*Listener server code here*/
BarcodeServer::BarcodeServer(boost::asio::io_service& io_service) : m_acceptor(io_service, tcp::endpoint(tcp::v4(), SERVER_PORT_NUMBER))
{
start_accepting_connections();
}
void BarcodeServer::start_accepting_connections(void)
{
std::cout << "Waiting for a connection." << std::endl;
ClientConnection::ClientConnectionPointer new_connection = ClientConnection::Create(m_acceptor.get_io_service());
m_acceptor.async_accept(new_connection->GetSocket(), boost::bind(&BarcodeServer::handle_accepted_connection, this, new_connection, boost::asio::placeholders::error));
}
void BarcodeServer::handle_accepted_connection(ClientConnection::ClientConnectionPointer new_connection, const boost::system::error_code& error)
{
if(!error)
{
new_connection->RunClient();
}
start_accepting_connections();
}
/*main code here*/
try
{
boost::asio::io_service io_service;
BarcodeServer server(io_service);
io_service.run();
}
catch(std::exception& e)
{
cout << "Error when running server:" << endl;
cout << e.what() << endl;
return RETURN_CODE_SERVER_RUN_ERROR;
}
return RETURN_CODE_SUCCESS;
大部分代码几乎都是直接从 boost 网站上的示例中提取出来的，所以我猜我只是在某个地方做了一些愚蠢的事情，但是我已经查看了几次代码，但不知道在哪里。
任何帮助将非常感激。