Rename mqttd modules to hal and add makefile

guowenxue

2019-06-24 164590e50f7c6a26d7a92d5da6423ec8ce43f811

 apue/2.Socket/socket_client.c

@@ -109,7 +109,8 @@
          }
       }

       //printf("Read %d bytes data from server: '%s'\n", rv, buf);

       sleep(5);
    }