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Pipes

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\*) or Message* popQueue(), which access the internal stack of Messages. nullptr is returned if the stack is empty; you must handle this case.