Struct wasmtime_runtime::TlsRestore

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pub struct TlsRestore(_);

Expand description

Opaque state used to help control TLS state across stack switches for async support.

Implementations

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impl TlsRestore

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pub unsafe fn take() -> Result<TlsRestore, Box<Trap>>

Takes the TLS state that is currently configured and returns a token that is used to replace it later.

This is not a safe operation since it’s intended to only be used with stack switching found with fibers and async wasmtime.

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pub unsafe fn replace(self) -> Result<(), Box<Trap>>

Restores a previous tls state back into this thread’s TLS.

This is unsafe because it’s intended to only be used within the context of stack switching within wasmtime.

Auto Trait Implementations

impl !RefUnwindSafe for TlsRestore

impl !Send for TlsRestore

impl !Sync for TlsRestore

impl Unpin for TlsRestore

impl !UnwindSafe for TlsRestore

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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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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 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.

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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.

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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.

Struct wasmtime_runtime::TlsRestore

Implementations

impl TlsRestore

pub unsafe fn take() -> Result<TlsRestore, Box<Trap>>

pub unsafe fn replace(self) -> Result<(), Box<Trap>>

Auto Trait Implementations

impl !RefUnwindSafe for TlsRestore

impl !Send for TlsRestore

impl !Sync for TlsRestore

impl Unpin for TlsRestore

impl !UnwindSafe for TlsRestore

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>

Struct wasmtime_runtime::TlsRestore

Implementations

impl TlsRestore

pub unsafe fn take() -> Result<TlsRestore, Box<Trap>>

pub unsafe fn replace(self) -> Result<(), Box<Trap>>

Auto Trait Implementations

impl !RefUnwindSafe for TlsRestore

impl !Send for TlsRestore

impl !Sync for TlsRestore

impl Unpin for TlsRestore

impl !UnwindSafe for TlsRestore

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>

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>,