Boost async_read - c++

Question

I'm trying to create a TCP server where the Start() method blocks until a connection is accepted, and then begins a series of asynchronous reads. I have the following code, and when I connect using telnet I get this output:
Waiting for a new connection
Connection accepted
terminate called throwing an exceptionAbort trap: 6
Here is the code:
void SocketReadThread::Start()
{
bzero(m_headerBuffer, HEADER_LEN);
m_running = true;
asio::io_service ios;
asio::ip::tcp::acceptor acp (ios,
boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), GUI_PORT));
asio::ip::tcp::socket sock(ios);
std::cout << "Waiting for a new connection" << std::endl;
acp.accept(sock);
std::cout << "Connection accepted" << std::endl;
asio::async_read(sock, asio::buffer(m_headerBuffer, HEADER_LEN),
boost::bind(&SocketReadThread::handleReadHeader, shared_from_this(),
asio::placeholders::error));
ios.run();
}
void SocketReadThread::handleReadHeader(const system::error_code& error)
{
std::cout << "Read two bytes!" << std::endl;
}

Answer 1

You should wrap your main() function in try {...} catch (std::exception& e) { cout << e.what(); } block.

Answer 2

You're probably doing something scary (and awesome) to the stack by declaring your ReadHandler incorrectly. Even if you ignore some parameters, the signature must be:
void handler (
const boost::system::error_code& error, // Result of operation.
std::size_t bytes_transferred // Number of bytes copied into the
// buffers. If an error occurred,
// this will be the number of
// bytes successfully transferred
// prior to the error.
);