Struct template channel

boost::log::sources::channel — Channel support feature.

Synopsis

// In header: <boost/log/sources/channel_feature.hpp>

template<typename ChannelT = void> 
struct channel {
  // member classes/structs/unions
  template<typename BaseT> 
  struct apply {
    // types
    typedef basic_channel_logger< BaseT, typename mpl::if_< is_void< ChannelT >, typename BaseT::string_type, ChannelT >::type > type;
  };
};

Description

The logger with this feature automatically registers constant attribute with the specified on construction value, which is a channel name. The channel name cannot be modified through the logger life time.

The type of the channel name can be customized by providing it as a template parameter to the feature template. By default, a string with the corresponding character type will be used.