add api code, use proto msg as data.

lichao

2021-04-13 153375e3b152768cbffce715d049499945834c29

 utest/speed_test.cpp

@@ -171,7 +171,7 @@
         }
         MsgI msg;
         BHMsgHead head;
         if (!cli.SyncRecv(msg, head, 1000)) {
         if (!cli.SyncRecv(msg, head, 100)) {
            printf("********** client recv error.\n");
         } else {
            DEFER1(msg.Release(shm));
@@ -192,7 +192,7 @@
      BHMsgHead req_head;

      while (!stop) {
         if (srv.SyncRecv(req, req_head, 100)) {
         if (srv.SyncRecv(req, req_head, 10)) {
            DEFER1(req.Release(shm));

            if (req.ParseHead(req_head) && req_head.type() == kMsgTypeRequestTopic) {