Struct base::sys::linux::event::PlatformEvent

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pub(crate) struct PlatformEvent {
    event_handle: SafeDescriptor,
}
Expand description

A safe wrapper around a Linux eventfd (man 2 eventfd).

An eventfd is useful because it is sendable across processes and can be used for signaling in and out of the KVM API. They can also be polled like any other file descriptor.

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§event_handle: SafeDescriptor

Implementations§

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impl PlatformEvent

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pub fn new() -> Result<PlatformEvent>

Creates a new blocking eventfd with an initial value of 0.

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pub fn write_count(&self, v: u64) -> Result<()>

See EventExt::write_count.

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pub fn read_count(&self) -> Result<u64>

See EventExt::read_count.

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pub fn signal(&self) -> Result<()>

See Event::signal.

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pub fn wait(&self) -> Result<()>

See Event::wait.

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pub fn wait_timeout(&self, timeout: Duration) -> Result<EventWaitResult>

See Event::wait_timeout.

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pub fn reset(&self) -> Result<()>

See Event::reset.

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pub fn try_clone(&self) -> Result<PlatformEvent>

Clones this eventfd, internally creating a new file descriptor. The new eventfd will share the same underlying count within the kernel.

Trait Implementations§

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impl AsRawDescriptor for PlatformEvent

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fn as_raw_descriptor(&self) -> RawDescriptor

Returns the underlying raw descriptor. Read more
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impl Debug for PlatformEvent

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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<'de> Deserialize<'de> for PlatformEvent

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<PlatformEvent> for SafeDescriptor

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fn from(evt: PlatformEvent) -> Self

Converts to this type from the input type.
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impl From<SafeDescriptor> for PlatformEvent

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fn from(sd: SafeDescriptor) -> Self

Converts to this type from the input type.
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impl FromRawDescriptor for PlatformEvent

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unsafe fn from_raw_descriptor(descriptor: RawDescriptor) -> Self

Safety Read more
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impl IntoRawDescriptor for PlatformEvent

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impl PartialEq for PlatformEvent

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for PlatformEvent

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Eq for PlatformEvent

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impl StructuralPartialEq for PlatformEvent

Auto Trait Implementations§

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> AsRawDescriptors for T
where T: AsRawDescriptor,

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fn as_raw_descriptors(&self) -> Vec<i32>

Returns the underlying raw descriptors. 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> 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

The type returned in the event of a conversion error.
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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.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,