boost::asio 服务器，功能简单

Question

Guys I really need your help. I'm learning boost::asio and I have 2 problems that I can't deal for days...

Here is an example of a simple echo server done by myself:

int main(
{
    // crate a server, binding it and listening connections

    // acceptor server;

    //socket client

    server.async_accept(client, boost::bind(accept_handle, _1, &server, &client));

    io_service.run();

    return 0;
}

void accept_handle(const boost::system::error_code& eCode, boost::asio::ip::tcp::acceptor* server, boost::asio::ip::tcp::socket* client)
{
    char data[43];
    client->async_read_some(boost::asio::buffer(data, 20), boost::bind(read_handle, _1, _2, server, client));
}

void read_handle(const boost::system::error_code& eCode, size_t bytes)
{
    char data_buf[20] = "hello";
    client->async_write_some(boost::buufer(data, 5), boost::bind(write_handle, _1, _2, server, client)); 
}

void write_accept(const boost::system::error_code& eCode, size_t bytes)
{
    boost::asio::ip::tcp::socket newConnection(server->get_ioservice)); // taking he io_service of the server

    server->async_accept(newConnection, boost::bind(accept_handle, _1, server, client));
}

The problem is the server accept one client and it does not accept other pending client.. where am i doing wrong here

NOTE : I wrote this code in notepad so sorry for syntax errors if there are any.

Thanks for your help in advance!!!

Answer 1

The code can only accept one connection because it is not calling async_accept in the accept_handle function.

The code may also have a problem with object lifetimes: it would be wise to use shared pointers to manage the clients see: Boost async_* functions and shared_ptr's .