BPFFS_PIN_DIR
ret = snprintf(desc->pin_path, PATH_MAX_LEN, "%s/%s", BPFFS_PIN_DIR,
BPFFS_PIN_DIR, INNER_MAP_NAME, INNER_MAP_NAME);
BPFFS_PIN_DIR, OUTER_MAP_NAME, OUTER_MAP_NAME, INNER_MAP_NAME);
ret = snprintf(pin_path, PATH_MAX_LEN, "%s/%s", BPFFS_PIN_DIR,
BPFFS_PIN_DIR, OUTER_MAP_NAME, key, INNER_MAP_NAME);
ret = snprintf(iter_pin_path, PATH_MAX_LEN, "%s/iter", BPFFS_PIN_DIR);
if (!ASSERT_OK(mkdir(BPFFS_PIN_DIR, S_IFDIR), "create bpffs pin dir"))
rmdir(BPFFS_PIN_DIR);