Beispiel #1
0
/*
 * pmempool_transform -- alter poolset structure
 */
int
pmempool_transform(const char *poolset_src,
		const char *poolset_dst, unsigned flags)
{
	LOG(3, "poolset_src %s, poolset_dst %s, flags %u", poolset_src,
			poolset_dst, flags);
	ASSERTne(poolset_src, NULL);
	ASSERTne(poolset_dst, NULL);

	/* check if the source poolset has correct signature */
	if (util_is_poolset_file(poolset_src) != 1) {
		ERR("source file is not a poolset file");
		goto err;
	}

	/* check if the destination poolset has correct signature */
	if (util_is_poolset_file(poolset_dst) != 1) {
		ERR("destination file is not a poolset file");
		goto err;
	}

	/* check if flags are supported */
	if (check_flags_transform(flags)) {
		ERR("unsupported flags");
		errno = EINVAL;
		goto err;
	}

	/* open the source poolset file */
	int fd_in = util_file_open(poolset_src, NULL, 0, O_RDONLY);
	if (fd_in < 0) {
		ERR("cannot open source poolset file");
		goto err;
	}

	/* parse the source poolset file */
	struct pool_set *set_in = NULL;
	if (util_poolset_parse(&set_in, poolset_src, fd_in)) {
		ERR("parsing source poolset failed");
		close(fd_in);
		goto err;
	}
	close(fd_in);

	/* open the destination poolset file */
	int fd_out = util_file_open(poolset_dst, NULL, 0, O_RDONLY);
	if (fd_out < 0) {
		ERR("cannot open destination poolset file");
		goto err;
	}

	int del = 0;

	/* parse the destination poolset file */
	struct pool_set *set_out = NULL;
	if (util_poolset_parse(&set_out, poolset_dst, fd_out)) {
		ERR("parsing destination poolset failed");
		close(fd_out);
		goto err_free_poolin;
	}
	close(fd_out);

	/* check if the source poolset is of a correct type */
	if (pool_set_type(set_in) != POOL_TYPE_OBJ) {
		ERR("source poolset is of a wrong type");
		goto err_free_poolout;
	}

	/* check if the source poolset is healthy */
	struct poolset_health_status *set_in_hs = NULL;
	if (replica_check_poolset_health(set_in, &set_in_hs, flags)) {
		ERR("source poolset health check failed");
		goto err_free_poolout;
	}

	if (!replica_is_poolset_healthy(set_in_hs)) {
		ERR("source poolset is broken");
		replica_free_poolset_health_status(set_in_hs);
		goto err_free_poolout;
	}

	replica_free_poolset_health_status(set_in_hs);

	del = !is_dry_run(flags);

	/* transform poolset */
	if (replica_transform(set_in, set_out, flags)) {
		ERR("transformation failed");
		goto err_free_poolout;
	}

	util_poolset_close(set_in, 0);
	util_poolset_close(set_out, 0);
	return 0;

err_free_poolout:
	util_poolset_close(set_out, del);

err_free_poolin:
	util_poolset_close(set_in, 0);

err:
	if (errno == 0)
		errno = EINVAL;

	return -1;
}
Beispiel #2
0
static inline
#endif
int
pmempool_transformU(const char *poolset_src,
		const char *poolset_dst, unsigned flags)
{
	LOG(3, "poolset_src %s, poolset_dst %s, flags %u", poolset_src,
			poolset_dst, flags);
	ASSERTne(poolset_src, NULL);
	ASSERTne(poolset_dst, NULL);

	/* check if the source poolset has correct signature */
	if (util_is_poolset_file(poolset_src) != 1) {
		ERR("source file is not a poolset file");
		goto err;
	}

	/* check if the destination poolset has correct signature */
	if (util_is_poolset_file(poolset_dst) != 1) {
		ERR("destination file is not a poolset file");
		goto err;
	}

	/* check if flags are supported */
	if (check_flags_transform(flags)) {
		ERR("unsupported flags");
		errno = EINVAL;
		goto err;
	}

	/* open the source poolset file */
	int fd_in = util_file_open(poolset_src, NULL, 0, O_RDONLY);
	if (fd_in < 0) {
		ERR("cannot open source poolset file");
		goto err;
	}

	/* parse the source poolset file */
	struct pool_set *set_in = NULL;
	if (util_poolset_parse(&set_in, poolset_src, fd_in)) {
		ERR("parsing source poolset failed");
		os_close(fd_in);
		goto err;
	}
	os_close(fd_in);

	/* open the destination poolset file */
	int fd_out = util_file_open(poolset_dst, NULL, 0, O_RDONLY);
	if (fd_out < 0) {
		ERR("cannot open destination poolset file");
		goto err;
	}

	enum del_parts_mode del = DO_NOT_DELETE_PARTS;

	/* parse the destination poolset file */
	struct pool_set *set_out = NULL;
	if (util_poolset_parse(&set_out, poolset_dst, fd_out)) {
		ERR("parsing destination poolset failed");
		os_close(fd_out);
		goto err_free_poolin;
	}
	os_close(fd_out);

	/* check if the source poolset is of a correct type */
	if (pool_set_type(set_in) != POOL_TYPE_OBJ) {
		ERR("source poolset is of a wrong type");
		goto err_free_poolout;
	}

	/* load remote library if needed */
	if (set_in->remote && util_remote_load()) {
		ERR("remote replication not available");
		goto err_free_poolout;
	}
	if (set_out->remote && util_remote_load()) {
		ERR("remote replication not available");
		goto err_free_poolout;
	}

	del = is_dry_run(flags) ? DO_NOT_DELETE_PARTS : DELETE_CREATED_PARTS;

	/* transform poolset */
	if (replica_transform(set_in, set_out, flags)) {
		ERR("transformation failed");
		goto err_free_poolout;
	}

	util_poolset_close(set_in, DO_NOT_DELETE_PARTS);
	util_poolset_close(set_out, DO_NOT_DELETE_PARTS);
	return 0;

err_free_poolout:
	util_poolset_close(set_out, del);

err_free_poolin:
	util_poolset_close(set_in, DO_NOT_DELETE_PARTS);

err:
	if (errno == 0)
		errno = EINVAL;

	return -1;
}