make req/rep,sub/pub sockets sub class;

lichao

2021-04-01 b55ffe89f4b237be5f79232cfddfe22bfdb87c64

 src/center.cpp

@@ -23,7 +23,6 @@

SharedMemory &BHomeShm()
{
   static SharedMemory shm("bhome_default_shm_v0", 1024*1024*64);
   static SharedMemory shm("bhome_default_shm_v0", 1024 * 1024 * 64);
   return shm;
}