allow tcp request with no dest, auto query topic.

lichao

2021-06-04 903b27f875e5f2a872c1b309f354b18c0450f35a

 .gitignore

@@ -6,6 +6,8 @@
utest/utest
*.bak
gmon.out
box/bhshmqbox
box/bhshmq_center
box/help
*/bhshmq_center
*/help
*/bhshmqbox
*/bhshmq_status
.idea