guard shm alloc; rm OnWrite,dup lock in shm queue.

lichao

2021-04-30 3b93dc0dc34008cf25b2b12f6b026b3d9e4ed623

 .gitignore

@@ -10,4 +10,4 @@
*/help
*/bhshmqbox
*/bhshmq_status
api/go/bhome_msg/*.pb.go
.idea