Enum system_interface::fs::Advice

source · [−]

#[repr(i32)]
pub enum Advice {
    Normal,
    Sequential,
    Random,
    WillNeed,
    DontNeed,
    NoReuse,
}

Expand description

Advice to pass to FileIoExt::advise.

Variants

`Normal`

No advice; default heuristics apply.

`Sequential`

Data will be accessed sequentially at ascending offsets.

`Random`

Data will be accessed with an irregular access pattern.

`WillNeed`

Data will be accessed soon.

`DontNeed`

Data will not be accessed soon.

`NoReuse`

Data will be accessed exactly once.

Trait Implementations

source

impl Debug for Advice

source

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

Formats the value using the given formatter. Read more

source

impl Hash for Advice

source

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

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

Feeds a slice of this type into the given Hasher. Read more

source

impl PartialEq<Advice> for Advice

source

fn eq(&self, other: &Advice) -> bool

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

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

source

impl Eq for Advice

source

impl StructuralEq for Advice

source

impl StructuralPartialEq for Advice

Auto Trait Implementations

impl RefUnwindSafe for Advice

impl Send for Advice

impl Sync for Advice

impl Unpin for Advice

impl UnwindSafe for Advice

Blanket Implementations

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
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.

source

impl<T, U> TryFrom for T where
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.

source

impl<T, U> TryInto for T where
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.

Enum system_interface::fs::Advice

Variants

Normal

Sequential

Random

WillNeed

DontNeed

NoReuse

Trait Implementations

impl Debug for Advice

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

impl Hash for Advice

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

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

impl PartialEq<Advice> for Advice

fn eq(&self, other: &Advice) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Eq for Advice

impl StructuralEq for Advice

impl StructuralPartialEq for Advice

Auto Trait Implementations

impl RefUnwindSafe for Advice

impl Send for Advice

impl Sync for Advice

impl Unpin for Advice

impl UnwindSafe for Advice

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

`Normal`

`Sequential`

`Random`

`WillNeed`

`DontNeed`

`NoReuse`

fn hash<H: Hasher>(&self, state: &mut H)

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

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

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

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

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

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

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