27e965f538
The initial version of libbtrfsutil did not follow a unified naming scheme that's usually used for libraries like those provide by util-linux. Add aliases that are "btrfs_util_" + object + action + suffix. The library version changes to 1.3 but there's no new functionality, only the aliases added. New functions can be added in the future without possible confusion when the same action could apply to different objects. Issue: #574 Signed-off-by: David Sterba <dsterba@suse.com>
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2018 Facebook
|
|
*
|
|
* This file is part of libbtrfsutil.
|
|
*
|
|
* libbtrfsutil is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* libbtrfsutil is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
|
|
#include "btrfsutil_internal.h"
|
|
|
|
PUBLIC enum btrfs_util_error btrfs_util_create_qgroup_inherit(int flags,
|
|
struct btrfs_util_qgroup_inherit **ret)
|
|
{
|
|
struct btrfs_qgroup_inherit *inherit;
|
|
|
|
if (flags) {
|
|
errno = EINVAL;
|
|
return BTRFS_UTIL_ERROR_INVALID_ARGUMENT;
|
|
}
|
|
|
|
inherit = calloc(1, sizeof(*inherit));
|
|
if (!inherit)
|
|
return BTRFS_UTIL_ERROR_NO_MEMORY;
|
|
|
|
/*
|
|
* struct btrfs_util_qgroup_inherit is a lie; it's actually struct
|
|
* btrfs_qgroup_inherit, but we abstract it away so that users don't
|
|
* need to depend on the Btrfs UAPI headers.
|
|
*/
|
|
*ret = (struct btrfs_util_qgroup_inherit *)inherit;
|
|
|
|
return BTRFS_UTIL_OK;
|
|
}
|
|
PUBLIC enum btrfs_util_error btrfs_util_qgroup_inherit_create(int flags, struct btrfs_util_qgroup_inherit **ret)
|
|
LIBBTRFSUTIL_ALIAS(btrfs_util_create_qgroup_inherit);
|
|
|
|
PUBLIC void btrfs_util_destroy_qgroup_inherit(struct btrfs_util_qgroup_inherit *inherit)
|
|
{
|
|
free(inherit);
|
|
}
|
|
PUBLIC void btrfs_util_qgroup_inherit_destroy(struct btrfs_util_qgroup_inherit *inherit)
|
|
LIBBTRFSUTIL_ALIAS(btrfs_util_destroy_qgroup_inherit);
|
|
|
|
PUBLIC enum btrfs_util_error btrfs_util_qgroup_inherit_add_group(struct btrfs_util_qgroup_inherit **inherit,
|
|
uint64_t qgroupid)
|
|
{
|
|
struct btrfs_qgroup_inherit *tmp = (struct btrfs_qgroup_inherit *)*inherit;
|
|
|
|
tmp = realloc(tmp, sizeof(*tmp) +
|
|
(tmp->num_qgroups + 1) * sizeof(tmp->qgroups[0]));
|
|
if (!tmp)
|
|
return BTRFS_UTIL_ERROR_NO_MEMORY;
|
|
|
|
tmp->qgroups[tmp->num_qgroups++] = qgroupid;
|
|
|
|
*inherit = (struct btrfs_util_qgroup_inherit *)tmp;
|
|
|
|
return BTRFS_UTIL_OK;
|
|
}
|
|
|
|
PUBLIC void btrfs_util_qgroup_inherit_get_groups(const struct btrfs_util_qgroup_inherit *inherit,
|
|
const uint64_t **groups,
|
|
size_t *n)
|
|
{
|
|
struct btrfs_qgroup_inherit *tmp = (struct btrfs_qgroup_inherit *)inherit;
|
|
|
|
/* Need to cast because __u64 != uint64_t. */
|
|
*groups = (const uint64_t *)&tmp->qgroups[0];
|
|
*n = tmp->num_qgroups;
|
|
}
|