Re: [Boost-users] [ASIO] async_accept : Error m_val 1.

Subject: Re: [Boost-users] [ASIO] async_accept : Error m_val 1.
From: Cyprien DIOT (cyprien.diot_at_[hidden])
Date: 2011-03-10 07:47:46

I've made unit test for this problem.

Server.h:

#pragma once

#include <boost/thread/thread.hpp>
#include <boost/asio.hpp>
#include <boost/array.hpp>
#include <iostream>

class Server
{
public:
        AssistGui(boost::asio::io_service &);
        ~AssistGui(void);

        void	accept(const boost::system::error_code& e);
        void	sendMsg(const char *msg, unsigned int size);

private:
        boost::asio::io_service &io;
        boost::asio::ip::tcp::socket	_client;
        boost::asio::ip::tcp::acceptor	_acceptor;

};

Server.cpp:

#include "Server.h"

using boost::asio::ip::tcp;

Server::Server(boost::asio::io_service &ios) : io(ios), _client(ios), _acceptor(ios, tcp::endpoint(tcp::v4(), 14242))
{
        _acceptor.async_accept(_client, boost::bind(&Server::accept, this, boost::asio::placeholders::error));
}

void	Server::sendMsg(const char *msg, unsigned int size)
{

}
Server::~Server(void)
{
}

void		Server::accept(const boost::system::error_code& e)
{
  // same error :-( : "Already open"
}

int		main()
{
        boost::asio::io_service ios;

        Server	s(ios);
        ios.run();
}

The error is still the same "Already open".
_WIN32_WINNT=0x0501 is defined.
I tried to change port.
No warnings at program compilation.
Can you help me?

Thank you

Cyprien DIOT

----- Mail original -----
De: "Igor R" <boost.lists_at_[hidden]>
À: boost-users_at_[hidden]
Envoyé: Jeudi 10 Mars 2011 00:42:24
Objet: Re: [Boost-users] [ASIO] async_accept : Error m_val 1.

> m_val = 1;
> m_cat = 0x00ab8d00 instance;
> Â | [boost::asio::error::detail::misc_category] = {...}
> Â | boost::noncopyable_::noncopyable = {...}
> Â | __vfptr = 0x00a8bf18 const boost::asio::error::detail::misc_category::`vftable'

Use message() member function of error_code to see the error description.
IIUC, in your case it should be "Already open", i.e. you're trying to
accept new connection to a socket which was already open.
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