diff options
Diffstat (limited to 'libcgroup.h')
| -rw-r--r-- | libcgroup.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libcgroup.h b/libcgroup.h index 08613cf..750e36e 100644 --- a/libcgroup.h +++ b/libcgroup.h @@ -94,6 +94,31 @@ enum cgroup_errors { ECGROUPNORULES, /* Rules list does not exist. */ ECGMOUNTFAIL, ECGSENTINEL, /* Please insert further error codes above this */ + ECGEOF, /* End of file, iterator */ +}; + +/* + * Don't use CGROUP_WALK_TYPE_FILE right now. It is added here for + * later refactoring and better implementation. Most users *should* + * use CGROUP_WALK_TYPE_PRE_DIR. + */ +enum cgroup_walk_type { + CGROUP_WALK_TYPE_PRE_DIR = 0x1, /* Pre Order Directory */ + CGROUP_WALK_TYPE_POST_DIR = 0x2, /* Post Order Directory */ +}; + +enum cgroup_file_type { + CGROUP_FILE_TYPE_FILE, /* File */ + CGROUP_FILE_TYPE_DIR, /* Directory */ + CGROUP_FILE_TYPE_OTHER, /* Directory */ +}; + +struct cgroup_file_info { + enum cgroup_file_type type; + const char *path; + const char *parent; + const char *full_path; + short depth; }; #define CG_NV_MAX 100 @@ -199,6 +224,31 @@ char *cgroup_strerror(int code); */ int cgroup_get_last_errno(); +/** + * Walk through the directory tree for the specified controller. + * @controller: Name of the controller, for which we want to walk + * the directory tree + * @base_path: Begin walking from this path + * @depth: The maximum depth to which the function should walk, 0 + * implies all the way down + * @handle: Handle to be used during iteration + * @info: info filled and returned about directory information + */ +int cgroup_walk_tree_begin(char *controller, char *base_path, const int depth, + void **handle, struct cgroup_file_info *info, + int *base_level); +/** + * Get the next element during the walk + * @depth: The maximum depth to which the function should walk, 0 + * implies all the way down + * @handle: Handle to be used during iteration + * @info: info filled and returned about directory information + * + * Returns ECGEOF when we are done walking through the nodes. + */ +int cgroup_walk_tree_next(const int depth, void **handle, + struct cgroup_file_info *info, int base_level); +int cgroup_walk_tree_end(void **handle); /* The wrappers for filling libcg structures */ |