PARA_ERROR(OPENDIR, "can not open directory"), \
PARA_ERROR(NOSPC, "no space left on device"), \
PARA_ERROR(OPEN, "failed to open file"), \
PARA_ERROR(OPENDIR, "can not open directory"), \
PARA_ERROR(NOSPC, "no space left on device"), \
PARA_ERROR(OPEN, "failed to open file"), \