Struct cgroups_rs::devices::DevicesController

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pub struct DevicesController { /* private fields */ }

Expand description

A controller that allows controlling the devices subsystem of a Cgroup.

In essence, using the devices controller, it is possible to allow or disallow sets of devices to be used by the control group’s tasks.

Implementations

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impl DevicesController

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pub fn new(root: PathBuf) -> Self

Constructs a new DevicesController with root serving as the root of the control group.

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pub fn allow_device(
 &self,
 devtype: DeviceType,
 major: i64,
 minor: i64,
 perm: &[DevicePermissions]
) -> Result<()>

Allow a (possibly, set of) device(s) to be used by the tasks in the control group.

When -1 is passed as major or minor, the kernel interprets that value as “any”, meaning that it will match any device.

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pub fn deny_device(
 &self,
 devtype: DeviceType,
 major: i64,
 minor: i64,
 perm: &[DevicePermissions]
) -> Result<()>

Deny the control group’s tasks access to the devices covered by dev.

When -1 is passed as major or minor, the kernel interprets that value as “any”, meaning that it will match any device.

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pub fn allowed_devices(&self) -> Result<Vec<DeviceResource>>

Get the current list of allowed devices.

Trait Implementations

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impl Clone for DevicesController

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fn clone(&self) -> DevicesController

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for DevicesController

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<'a> From<&'a Subsystem> for &'a DevicesController

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fn from(sub: &'a Subsystem) -> &'a DevicesController

Converts to this type from the input type.

Auto Trait Implementations

impl RefUnwindSafe for DevicesController

impl Send for DevicesController

impl Sync for DevicesController

impl Unpin for DevicesController

impl UnwindSafe for DevicesController

Blanket Implementations

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> Controller for Twhere
T: ControllerInternal,

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fn apply(&self, res: &Resources) -> Result<(), Error>

Apply a set of resources to the Controller, invoking its internal functions to pass the kernel the information.

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fn create(&self)

Create this controller

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fn set_notify_on_release(&self, enable: bool) -> Result<(), Error>

Set notify_on_release

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fn set_release_agent(&self, path: &str) -> Result<(), Error>

Set release_agent

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fn exists(&self) -> bool

Does this controller already exist?

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fn delete(&self) -> Result<(), Error>

Delete the controller.

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fn add_task(&self, pid: &CgroupPid) -> Result<(), Error>

Attach a task to this controller.

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fn add_task_by_tgid(&self, pid: &CgroupPid) -> Result<(), Error>

Attach a task to this controller by thread group id.

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fn tasks(&self) -> Vec<CgroupPid, Global>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

Get the list of tasks that this controller has.

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fn control_type(&self) -> Controllers

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fn path(&self) -> &Path

The file system path to the controller.

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fn v2(&self) -> bool

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct cgroups_rs::devices::DevicesController

Implementations

impl DevicesController

pub fn new(root: PathBuf) -> Self

pub fn allow_device( &self, devtype: DeviceType, major: i64, minor: i64, perm: &[DevicePermissions]) -> Result<()>

pub fn deny_device( &self, devtype: DeviceType, major: i64, minor: i64, perm: &[DevicePermissions]) -> Result<()>

pub fn allowed_devices(&self) -> Result<Vec<DeviceResource>>

Trait Implementations

impl Clone for DevicesController

fn clone(&self) -> DevicesController

fn clone_from(&mut self, source: &Self)

impl Debug for DevicesController

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<'a> From<&'a Subsystem> for &'a DevicesController

fn from(sub: &'a Subsystem) -> &'a DevicesController

Auto Trait Implementations

impl RefUnwindSafe for DevicesController

impl Send for DevicesController

impl Sync for DevicesController

impl Unpin for DevicesController

impl UnwindSafe for DevicesController

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> Controller for Twhere T: ControllerInternal,

fn apply(&self, res: &Resources) -> Result<(), Error>

fn create(&self)

fn set_notify_on_release(&self, enable: bool) -> Result<(), Error>

fn set_release_agent(&self, path: &str) -> Result<(), Error>

fn exists(&self) -> bool

fn delete(&self) -> Result<(), Error>

fn add_task(&self, pid: &CgroupPid) -> Result<(), Error>

fn add_task_by_tgid(&self, pid: &CgroupPid) -> Result<(), Error>

fn tasks(&self) -> Vec<CgroupPid, Global>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where A: Allocator,

fn control_type(&self) -> Controllers

fn path(&self) -> &Path

fn v2(&self) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn allow_device(
&self,
devtype: DeviceType,
major: i64,
minor: i64,
perm: &[DevicePermissions]
) -> Result<()>

pub fn deny_device(
&self,
devtype: DeviceType,
major: i64,
minor: i64,
perm: &[DevicePermissions]
) -> Result<()>

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T> Controller for Twhere
T: ControllerInternal,

fn tasks(&self) -> Vec<CgroupPid, Global>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A>where A: Allocator,`

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,