This simple header only library allows easy implemtation of the observer pattern in C++
- Lightweight
- Messages passed between classes can be of any type
- Allows low coupling between components
- Copy constructor and operator= implemented to avoid dangling pointer issues
- Message senders should inherit from the
IMessageContext<MESSAGE_TYPE>interface class - Message Listeners should inherit from the
IMessageListener<MESSAGE_TYPE>interface class - To attach a listener to a context:
messaging::attach<MESSAGE_TYPE>(&source, &destination); - To detach a listener from a context:
messaging::detach<MESSAGE_TYPE>(&source, &destination); - To send a message from context to listener:
messaging::send<MESSAGE_TYPE>(&source, &destination); - For all three functions, the MESSAGE_TYPE must be the same as the type used in the type specifier in the base classes
- Classes may inherit from multiple context/listener interface classes of different types
- See the included main.cpp for an example