wasi_common::snapshots::preview_1::types

Enum Advice

pub enum Advice {
    Normal,
    Sequential,
    Random,
    Willneed,
    Dontneed,
    Noreuse,
}

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Noreuse

Trait Implementations§

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impl Clone for Advice

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fn clone(&self) -> Advice

Returns a duplicate 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 Advice

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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 From<Advice> for Advice

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fn from(e: Advice) -> Advice

Converts to this type from the input type.

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impl From<Advice> for Advice

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fn from(advice: Advice) -> Advice

Converts to this type from the input type.

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impl From<Advice> for u8

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fn from(v: Advice) -> u8

Converts to this type from the input type.

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impl GuestType for Advice

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fn guest_size() -> u32

Returns the size, in bytes, of this type in the guest memory.

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fn guest_align() -> usize

Returns the required alignment of this type, in bytes, for both guest and host memory.

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fn read( mem: &GuestMemory<'_>, location: GuestPtr<Self>, ) -> Result<Self, GuestError>

Reads this value from the provided ptr. Read more

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fn write( mem: &mut GuestMemory<'_>, location: GuestPtr<Self>, val: Self, ) -> Result<(), GuestError>

Writes a value to ptr after verifying that ptr is indeed valid to store val. Read more

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impl PartialEq for Advice

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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impl TryFrom<i32> for Advice

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type Error = GuestError

The type returned in the event of a conversion error.

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fn try_from(value: i32) -> Result<Advice, GuestError>

Performs the conversion.

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impl TryFrom<u8> for Advice

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type Error = GuestError

The type returned in the event of a conversion error.

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fn try_from(value: u8) -> Result<Advice, GuestError>

Performs the conversion.

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impl Copy for Advice

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impl StructuralPartialEq for Advice

Auto Trait Implementations§

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impl Freeze for Advice

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impl RefUnwindSafe for Advice

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impl Send for Advice

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impl Sync for Advice

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impl Unpin for Advice

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impl UnwindSafe for Advice

Blanket Implementations§

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> GetSetFdFlags for T

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fn get_fd_flags(&self) -> Result<FdFlags, Error>
where T: AsFilelike,

Query the “status” flags for the self file descriptor.

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fn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error>
where T: AsFilelike,

Create a new SetFdFlags value for use with set_fd_flags. Read more

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fn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error>
where T: AsFilelike,

Set the “status” flags for the self file descriptor. Read more

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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