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libdm-config: Implement dm_config_remove_node.

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This commit is contained in:
Petr Rockai 2014-11-20 12:05:09 +01:00
parent 8bc9966763
commit de2c5ab2ac
2 changed files with 18 additions and 0 deletions
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1
libdm/libdevmapper.h
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@ -1879,6 +1879,7 @@ int dm_config_write_one_node_out(const struct dm_config_node *cn, const struct d
struct dm_config_node *dm_config_find_node(const struct dm_config_node *cn, const char *path);
int dm_config_has_node(const struct dm_config_node *cn, const char *path);
int dm_config_remove_node(struct dm_config_node *parent, struct dm_config_node *remove);
const char *dm_config_find_str(const struct dm_config_node *cn, const char *path, const char *fail);
const char *dm_config_find_str_allow_empty(const struct dm_config_node *cn, const char *path, const char *fail);
int dm_config_find_int(const struct dm_config_node *cn, const char *path, int fail);

17
libdm/libdm-config.c
View File

@ -1380,3 +1380,20 @@ struct dm_config_tree *dm_config_flatten(struct dm_config_tree *cft)
return res;
}
int dm_config_remove_node(struct dm_config_node *parent, struct dm_config_node *remove)
{
struct dm_config_node *cn = parent->child, *last = NULL;
while (cn) {
if (cn == remove) {
if (last)
last->sib = cn->sib;
else
parent->child = cn->sib;
return 1;
}
last = cn;
cn = cn->sib;
}
return 0;
}