在进行snprintf之前，进行缓冲区的判满，提高处理效率。去掉无意义的goto语句

shm_consumer/MESA_shm_consumer.c

@@ -524,7 +524,7 @@ int main(int argc, char **argv)
 				if(g_care_pid == CONSUMER_CARE_PID_SPEC){
 					if(!producer_pid_is_cared(tmp_ovw->producer_pid)){
 						MESA_shm_ring_queue_set_empty(ring_queue_head[i]);
-						goto next;
+						break ;
 					}
 				}
 				if(g_output_mode == CONSUMER_OUTPUT_MODE_FILE){
@@ -534,7 +534,6 @@ int main(int argc, char **argv)
 				}
 			}
 		}
-	next:
 		usleep(5000);
 	}	
 	return 0;