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cgroup-util: add cg_get_attribute_as_bool() helper

This commit is contained in:
Anita Zhang 2020-10-05 20:59:54 -07:00
parent 61ff7397d0
commit b41dcc51eb
2 changed files with 23 additions and 0 deletions
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20
src/basic/cgroup-util.c
View File

@ -1685,6 +1685,26 @@ int cg_get_attribute_as_uint64(const char *controller, const char *path, const c
return 0;
}
int cg_get_attribute_as_bool(const char *controller, const char *path, const char *attribute, bool *ret) {
_cleanup_free_ char *value = NULL;
int r;
assert(ret);
r = cg_get_attribute(controller, path, attribute, &value);
if (r == -ENOENT)
return -ENODATA;
if (r < 0)
return r;
r = parse_boolean(value);
if (r < 0)
return r;
*ret = r;
return 0;
}
int cg_get_keyed_attribute_full(
const char *controller,
const char *path,

3
src/basic/cgroup-util.h
View File

@ -208,6 +208,9 @@ static inline int cg_get_keyed_attribute_graceful(
int cg_get_attribute_as_uint64(const char *controller, const char *path, const char *attribute, uint64_t *ret);
/* Does a parse_boolean() on the attribute contents and sets ret accordingly */
int cg_get_attribute_as_bool(const char *controller, const char *path, const char *attribute, bool *ret);
int cg_set_access(const char *controller, const char *path, uid_t uid, gid_t gid);
int cg_set_xattr(const char *controller, const char *path, const char *name, const void *value, size_t size, int flags);