System.CGroup.V2.CGroup

Common types and operations for cgroups (v2)

Documentation

data CGroup

A cgroup (under cgroups v2)

Constructors

CGroup

Fields

• cgroupRoot :: Path Abs Dir

  The root of the cgroup hierarchy

• cgroupLeaf :: Path Rel Dir

  A specific cgroup's relative path from the cgroup hierarchy root

Instances

Show CGroup

Defined in System.CGroup.V2.CGroup

Methods

showsPrec :: Int -> CGroup -> ShowS

show :: CGroup -> String

showList :: [CGroup] -> ShowS

Eq CGroup

Defined in System.CGroup.V2.CGroup

Methods

(==) :: CGroup -> CGroup -> Bool

(/=) :: CGroup -> CGroup -> Bool

Ord CGroup

Defined in System.CGroup.V2.CGroup

Methods

compare :: CGroup -> CGroup -> Ordering

(<) :: CGroup -> CGroup -> Bool

(<=) :: CGroup -> CGroup -> Bool

(>) :: CGroup -> CGroup -> Bool

(>=) :: CGroup -> CGroup -> Bool

max :: CGroup -> CGroup -> CGroup

min :: CGroup -> CGroup -> CGroup

resolveCGroup :: IO CGroup

Resolve the cgroup (v2) used for the current process

see cgroups(7): /proc/self/cgroup is a file that contains information about control groups applied to this process

see proc(5): /proc/self/mountinfo is a file that contains information about mounts available to this process

Throws an Exception when the cgroup is unable to be found, or when the current process is not running under cgroups v2

resolveCGroup' :: Path Abs File -> Path Abs File -> IO CGroup

Resolve a cgroup (v2) from the given cgroup and mountinfo files

Throws an Exception when the cgroup is unable to be found, or when the provided paths do not construct a valid cgroup