#[non_exhaustive]
pub enum WasmtimeInstantiationStrategy {
PoolingCopyOnWrite,
RecreateInstanceCopyOnWrite,
Pooling,
RecreateInstance,
LegacyInstanceReuse,
}
Expand description
The instantiation strategy to use for the WASM executor.
All of the CoW strategies (with CopyOnWrite
suffix) are only supported when either:
a) we’re running on Linux,
b) we’re running on an Unix-like system and we’re precompiling
our module beforehand.
If the CoW variant of a strategy is unsupported the executor will fall back to the non-CoW equivalent.
Variants (Non-exhaustive)
This enum is marked as non-exhaustive
PoolingCopyOnWrite
Pool the instances to avoid initializing everything from scratch on each instantiation. Use copy-on-write memory when possible.
This is the fastest instantiation strategy.
RecreateInstanceCopyOnWrite
Recreate the instance from scratch on every instantiation. Use copy-on-write memory when possible.
Pooling
Pool the instances to avoid initializing everything from scratch on each instantiation.
RecreateInstance
Recreate the instance from scratch on every instantiation. Very slow.
LegacyInstanceReuse
Legacy instance reuse mechanism. DEPRECATED. Will be removed. Do not use.
Trait Implementations
sourceimpl Clone for InstantiationStrategy
impl Clone for InstantiationStrategy
sourcefn clone(&self) -> InstantiationStrategy
fn clone(&self) -> InstantiationStrategy
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl Debug for InstantiationStrategy
impl Debug for InstantiationStrategy
sourceimpl Hash for InstantiationStrategy
impl Hash for InstantiationStrategy
sourceimpl PartialEq<InstantiationStrategy> for InstantiationStrategy
impl PartialEq<InstantiationStrategy> for InstantiationStrategy
sourcefn eq(&self, other: &InstantiationStrategy) -> bool
fn eq(&self, other: &InstantiationStrategy) -> bool
impl Copy for InstantiationStrategy
impl Eq for InstantiationStrategy
impl StructuralEq for InstantiationStrategy
impl StructuralPartialEq for InstantiationStrategy
Auto Trait Implementations
impl RefUnwindSafe for InstantiationStrategy
impl Send for InstantiationStrategy
impl Sync for InstantiationStrategy
impl Unpin for InstantiationStrategy
impl UnwindSafe for InstantiationStrategy
Blanket Implementations
impl<T> Any for Twhere
T: Any,
impl<T> Any for Twhere
T: Any,
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> CheckedConversion for T
impl<T> CheckedConversion for T
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Self: TryFrom<T>,
fn checked_from<T>(t: T) -> Option<Self>where
Self: TryFrom<T>,
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Self: TryInto<T>,
fn checked_into<T>(self) -> Option<T>where
Self: TryInto<T>,
impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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Box<dyn Trait>
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) to Box<dyn Any>
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can
then be further downcast
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(where Trait: Downcast
) to Rc<Any>
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&Trait
(where Trait: Downcast
) to &Any
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’s vtable from &Trait
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
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Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
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sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
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K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
sourceimpl<T> Instrument for T
impl<T> Instrument for T
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fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> Instrument for T
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fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
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sourceimpl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for Twhere
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impl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
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fn saturated_from<T>(t: T) -> Selfwhere
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fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
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. Read moresourceimpl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
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unchecked_from
.sourceimpl<T, S> UniqueSaturatedInto<T> for Swhere
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S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for Swhere
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sourcefn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
T
.