S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
if (ret < 0) {
PARA_EMERG_LOG("%s: %s\n", para_strerror(-ret), socket_name);
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
if (ret < 0) {
PARA_EMERG_LOG("%s: %s\n", para_strerror(-ret), socket_name);