Function makepair

c/tests/raw_connection_test.cpp:98–100

  }

  int makepair(int fds[2]) {
    return ::socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, fds);
  }
#else
  // Simple mock up of the read/write functions of a socketpair for testing
  // systems without socketpairs or MSG_NOSIGNAL/MSG_DONTWAIT (Windows/BSDs)