Binding a member signal to a function
- by the_drow
This line of code compiles correctly without a problem:
boost::bind(boost::ref(connected_),
boost::dynamic_pointer_cast<session<version> >(shared_from_this()),
boost::asio::placeholders::error);
However when assigning it to a boost::function or as a callback like this:
socket_->async_connect(connection_->remote_endpoint(),
boost::bind(boost::ref(connected_),
boost::dynamic_pointer_cast<session<version> >(shared_from_this()),
boost::asio::placeholders::error));
I'm getting a whole bunch of incomprehensible errors (linked since it's too long to fit here).
On the other hand I have succeeded binding a free signal to a boost::function like this:
void print(const boost::system::error_code& error)
{
cout << "session connected";
}
int main()
{
boost::signal<void(const boost::system::error_code &)> connected_;
connected_.connect(boost::bind(&print, boost::asio::placeholders::error));
client<>::connection_t::socket_ptr socket_(new client<>::connection_t::socket_t(conn->service())); // shared_ptr of a tcp socket
socket_->async_connect(conn->remote_endpoint(),
boost::bind(boost::ref(connected_),
boost::asio::placeholders::error));
conn->service().run(); // io_service.run()
return 0;
}
This works and prints session connected correctly.
What am I doing wrong here?
