Hi, John.
Many thanks for any help. I'm really enjoying Asio and other parts of Boost, but I still don't understand the framework completely.
Sorry, if I'm spamming you but feel free to read Asio examples at my project - http://sourceforge.net/projects/asio-samples. May be it can help in some architecture decisions.
2- This might be way off, but I also wondered if I need to close all the sockets so that the thread group could join.
Yes, you need to close all sockets (and other instances of asio::basic_io_object) having pending asynchronous operations (read/write for sockets, async_wait for timers, etc), related to the used instance of asio::io_service. Otherwise you can call asio::io_service::stop().
I added 2 member functions to help me:
void chat_server::close() { ? room_.close(); }
void chat_room::close() { ? std::for_each( participants_.begin(), participants_.end(), boost::bind(&chat_room::leave, this, _1) ); }
I call this in my server app class's destructor before calling thread_group::join_all, but this has a crash. The crash occurs right after chat_room::close() completes. I'm not confident in the way I used bind(...), but I was able to see the function execute, and then the crash occurs later.
You need to implement chat_participant::close() like it is done at: http://www.boost.org/doc/libs/1_49_0/doc/html/boost_asio/example/chat/chat_c... Regards, Marat Abrarov.