C++ (Cpp) btrfs_list_find_updated_filesの例

コード例 #1

ファイル: cmds-subvolume.c プロジェクト: osandov/btrfs-progs

static int cmd_find_new(int argc, char **argv)
{
	int fd;
	int ret;
	char *subvol;
	u64 last_gen;
	DIR *dirstream = NULL;

	if (check_argc_exact(argc, 3))
		usage(cmd_find_new_usage);

	subvol = argv[1];
	last_gen = arg_strtou64(argv[2]);

	ret = test_issubvolume(subvol);
	if (ret < 0) {
		fprintf(stderr, "ERROR: error accessing '%s'\n", subvol);
		return 1;
	}
	if (!ret) {
		fprintf(stderr, "ERROR: '%s' is not a subvolume\n", subvol);
		return 1;
	}

	fd = open_file_or_dir(subvol, &dirstream);
	if (fd < 0) {
		fprintf(stderr, "ERROR: can't access '%s'\n", subvol);
		return 1;
	}

	ret = ioctl(fd, BTRFS_IOC_SYNC);
	if (ret < 0) {
		fprintf(stderr, "ERROR: unable to fs-syncing '%s' - %s\n",
			subvol, strerror(errno));
		close_file_or_dir(fd, dirstream);
		return 1;
	}

	ret = btrfs_list_find_updated_files(fd, 0, last_gen);
	close_file_or_dir(fd, dirstream);
	return !!ret;
}

コード例 #2

ファイル: cmds-subvolume.c プロジェクト: goldwynr/btrfs-progs

static int cmd_subvol_find_new(int argc, char **argv)
{
	int fd;
	int ret;
	char *subvol;
	u64 last_gen;
	DIR *dirstream = NULL;

	clean_args_no_options(argc, argv, cmd_subvol_find_new_usage);

	if (check_argc_exact(argc - optind, 2))
		usage(cmd_subvol_find_new_usage);

	subvol = argv[optind];
	last_gen = arg_strtou64(argv[optind + 1]);

	ret = test_issubvolume(subvol);
	if (ret < 0) {
		error("cannot access subvolume %s: %s", subvol, strerror(-ret));
		return 1;
	}
	if (!ret) {
		error("not a subvolume: %s", subvol);
		return 1;
	}

	fd = btrfs_open_dir(subvol, &dirstream, 1);
	if (fd < 0)
		return 1;

	ret = ioctl(fd, BTRFS_IOC_SYNC);
	if (ret < 0) {
		error("sync ioctl failed on '%s': %s",
			subvol, strerror(errno));
		close_file_or_dir(fd, dirstream);
		return 1;
	}

	ret = btrfs_list_find_updated_files(fd, 0, last_gen);
	close_file_or_dir(fd, dirstream);
	return !!ret;
}