Enum rctl::Subject

[−] Show declaration

pub enum Subject {
    Process(Process),
    Jail(Jail),
    User(User),
    LoginClass(LoginClass),
}

[−] Expand description

A struct representing an RCTL subject.

From rctl(8):

Subject defines the kind of entity the rule applies to. It can be either process, user, login class, or jail.

Subject ID identifies the subject. It can be user name, numerical user ID login class name, or jail name.

Variants

Process(Process)

Jail(Jail)

User(User)

LoginClass(LoginClass)

Implementations

impl Subject[−]

pub fn process_id(pid: pid_t) -> Self

pub fn user_name(name: &str) -> Result<Self, ParseError>

pub fn user_id(uid: uid_t) -> Self

pub fn login_class<S: Into<String>>(name: S) -> Self

pub fn jail_name<S: Into<String>>(name: S) -> Self

pub fn usage(&self) -> Result<HashMap<Resource, usize>, Error>[−]

Get the resource usage for a specific [Subject].

Example

extern crate libc;

let uid = unsafe { libc::getuid() };
let subject = rctl::Subject::user_id(uid);

let usage = subject.usage()
    .expect("Could not get RCTL usage");

println!("{:#?}", usage);

pub fn limits(&self) -> Result<RuleParsingIntoIter<String>, Error>[−]

Get an IntoIterator over the rules that apply to this subject.

Trait Implementations

impl Clone for Subject[+]

[+] Show hidden undocumented items

fn clone(&self) -> Subject[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for Subject[+]

[+] Show hidden undocumented items

fn fmt(&self, f: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Display for Subject[+]

[+] Show hidden undocumented items

fn fmt(&self, f: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Eq for Subject

impl<'a> From<&'a Subject> for SubjectType[+]

[+] Show hidden undocumented items

fn from(subject: &'a Subject) -> Self[−]

Performs the conversion.

impl<'a> From<&'a Subject> for Filter[+]

[+] Show hidden undocumented items

fn from(subject: &'a Subject) -> Self[−]

Performs the conversion.

impl From<Subject> for Filter[+]

[+] Show hidden undocumented items

fn from(subject: Subject) -> Self[−]

Performs the conversion.

impl FromStr for Subject[+]

[+] Show hidden undocumented items

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>[−]

Parses a string s to return a value of this type.

impl Hash for Subject[+]

[+] Show hidden undocumented items

fn hash<__H: Hasher>(&self, state: &mut __H)[−]

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, [−]

Feeds a slice of this type into the given [Hasher].

impl<'a> Into<String> for &'a Subject[+]

[+] Show hidden undocumented items

fn into(self) -> String[−]

Performs the conversion.

impl PartialEq<Subject> for Subject[+]

[+] Show hidden undocumented items

fn eq(&self, other: &Subject) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Subject) -> bool[−]

This method tests for !=.

impl StructuralEq for Subject

impl StructuralPartialEq for Subject