[−][src]Struct rctl::Rule
A rule represents an [Action] to be taken when a particular [Subject] hits a [Limit] for a [Resource].
Syntax for the string representation of a rule is
subject:subject-id:resource:action=amount/per
.
Examples
use rctl::{Subject, SubjectType, Resource, Action, Limit, Rule}; let rule = Rule { subject: Subject::user_name("nobody").expect("no user 'nobody'"), resource: Resource::VMemoryUse, action: Action::Deny, limit: Limit::amount(1024*1024*1024), }; assert_eq!(rule.to_string(), "user:nobody:vmemoryuse:deny=1g".to_string());
Fields
subject: Subject
resource: Resource
limit: Limit
action: Action
Methods
impl Rule
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impl Rule
pub fn to_string(&self) -> String
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pub fn to_string(&self) -> String
pub fn apply(&self) -> Result<(), Error>
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pub fn apply(&self) -> Result<(), Error>
Add this rule to the resource limits database.
Example
use rctl::{Rule, Subject, Resource, Action, Limit}; let rule = Rule { subject: Subject::jail_name("testjail_rctl_rule_apply_method"), resource: Resource::VMemoryUse, action: Action::Log, limit: Limit::amount(100*1024*1024), }; rule.apply();
pub fn remove(&self) -> Result<(), Error>
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pub fn remove(&self) -> Result<(), Error>
Attempt to remove this rule from the resource limits database.
Example
use rctl::{Rule, Subject, Resource, Action, Limit}; let rule = Rule { subject: Subject::jail_name("testjail_rctl_rule_remove_method"), resource: Resource::VMemoryUse, action: Action::Log, limit: Limit::amount(100*1024*1024), }; rule.remove();
Trait Implementations
impl Eq for Rule
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impl Eq for Rule
impl<'a> Into<String> for &'a Rule
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impl<'a> Into<String> for &'a Rule
impl PartialEq<Rule> for Rule
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impl PartialEq<Rule> for Rule
fn eq(&self, other: &Rule) -> bool
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fn eq(&self, other: &Rule) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rule) -> bool
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fn ne(&self, other: &Rule) -> bool
This method tests for !=
.
impl From<Rule> for Filter
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impl From<Rule> for Filter
impl<'a> From<&'a Rule> for Filter
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impl<'a> From<&'a Rule> for Filter
impl Clone for Rule
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impl Clone for Rule
fn clone(&self) -> Rule
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fn clone(&self) -> Rule
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Hash for Rule
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impl Hash for Rule
fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash<__H: Hasher>(&self, state: &mut __H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Display for Rule
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impl Display for Rule
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Debug for Rule
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impl Debug for Rule
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl FromStr for Rule
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impl FromStr for Rule
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
type Owned = T
fn to_owned(&self) -> T
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fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)
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fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T> ToString for T where
T: Display + ?Sized,
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impl<T> ToString for T where
T: Display + ?Sized,
impl<T> From for T
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impl<T> From for T
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more