#define HTTP_SEND_ERRORS \
PARA_ERROR(WRITE_OK, "can not check whether fd is writable"), \
PARA_ERROR(MAX_CLIENTS, "maximal number of clients exceeded"), \
#define HTTP_SEND_ERRORS \
PARA_ERROR(WRITE_OK, "can not check whether fd is writable"), \
PARA_ERROR(MAX_CLIENTS, "maximal number of clients exceeded"), \