pub struct VcpuSuspendGuard<'a> {
    pub(crate) saved_run_mode: VmRunMode,
    pub(crate) kick_vcpus: &'a dyn Fn(VcpuControl),
}
Expand description

A guard to guarantee that all the vCPUs are suspended during the scope.

When this guard is dropped, it rolls back the state of CPUs.

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§saved_run_mode: VmRunMode§kick_vcpus: &'a dyn Fn(VcpuControl)

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impl<'a> VcpuSuspendGuard<'a>

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pub fn new( kick_vcpus: &'a impl Fn(VcpuControl), vcpu_num: usize ) -> Result<Self>

Check the all vCPU state and suspend the vCPUs if they are running.

This returns VcpuSuspendGuard to rollback the vcpu state.

§Arguments
  • kick_vcpus - A funtion to send VcpuControl message to all the vCPUs and interrupt them.
  • vcpu_num - The number of vCPUs.

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impl Drop for VcpuSuspendGuard<'_>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for VcpuSuspendGuard<'a>

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impl<'a> !Send for VcpuSuspendGuard<'a>

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impl<'a> !Sync for VcpuSuspendGuard<'a>

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impl<'a> Unpin for VcpuSuspendGuard<'a>

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impl<'a> !UnwindSafe for VcpuSuspendGuard<'a>

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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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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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, U> Into<U> 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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.