Pipes are the lowest level in a multithreaded system. They implement communcation between modules contained in their own threads.
Pipes provide:
- Thread-safety through C++11 mutexes
- Nonblocking access to ensure one unintended exception does not affect other threads
- A protected queue of Messages
Pipes are accessed through calls to either
void pushQueue(Message\*)orMessage* popQueue(), which access the internal stack of Messages.nullptris returned if the stack is empty; you must handle this case.