add SendQ TrySend() TryRecv(); handle re-register.

lichao

2021-04-14 aa1542b6d6a4680088ac715c4ce40f97ada554fb

 utest/utest.cpp

@@ -1,6 +1,5 @@
#include "center.h"
#include "defs.h"
#include "failed_msg.h"
#include "util.h"
#include <atomic>
#include <boost/uuid/uuid_generators.hpp>
@@ -21,8 +20,6 @@
struct IsSameType<A, A> {
   static const bool value = true;
};

typedef FailedMsgQ ServerFailedQ;

BOOST_AUTO_TEST_CASE(Temp)
{
@@ -232,7 +229,7 @@
         MsgRequestTopic req;
         req.set_topic(topic);
         req.set_data("data " + std::to_string(i));
         if (!client.ClientAsyncRequest(req, 1000)) {
         if (!client.ClientAsyncRequest(req)) {
            printf("client request failed\n");
            ++count;
         }