mq always create new shm, do not find.

lichao

2021-04-25 4fadba32621283dff64cc1b8592896c864f913d4

 .gitignore

@@ -9,4 +9,5 @@
*/bhshmq_center
*/help
*/bhshmqbox
*/bhshmq_status
*/bhshmq_status
.idea