Function release_all_sessions

src/board_controller/board_controller.cpp:634–646

}

int release_all_sessions ()
{
    std::lock_guard<std::mutex> lock (mutex);

    for (auto it = boards.begin (), next_it = it; it != boards.end (); it = next_it)
    {
        ++next_it;
        it->second->release_session ();
        boards.erase (it);
    }

    return (int)BrainFlowExitCodes::STATUS_OK;
}

int get_version_board_controller (char *version, int *num_chars, int max_chars)
{