PARA_ERROR(DCCP_SOCKET, "can not create dccp socket"), \
PARA_ERROR(DCCP_PACKET_SIZE, "failed to set dccp packet size"), \
PARA_ERROR(DCCP_SERVICE, "could not get service code"), \
PARA_ERROR(DCCP_SOCKET, "can not create dccp socket"), \
PARA_ERROR(DCCP_PACKET_SIZE, "failed to set dccp packet size"), \
PARA_ERROR(DCCP_SERVICE, "could not get service code"), \