add dot separated topic partial match; refactor.

lichao

2021-03-30 3f8ae6cf4f03be83f16846af32d73dd89b937c40

 utest/speed_test.cpp

@@ -84,7 +84,7 @@
                www.WaitAll();
                run.store(false);
                rrr.WaitAll();
                printf("%3d Write %ld msg  R(%3d) W(%3d), : ", getpid(), total_msg, nreader, nwriter);
                printf("Write %ld msg  R(%3d) W(%3d), : ", total_msg, nreader, nwriter);
            }
        }
    };