Struct vmcore::vmtime::VmTime

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pub struct VmTime(/* private fields */);
Expand description

Roughly analogous to std::time::Instant, but for VM time.

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impl VmTime

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pub fn from_100ns(n: u64) -> Self

Converts from a time in 100ns units.

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pub const fn as_100ns(&self) -> u64

Gets the time from VM boot (or some other origin) in 100ns units.

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pub fn wrapping_add(self, d: Duration) -> Self

Adds d to the time.

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pub fn is_before(self, t: Self) -> bool

Returns whether self is before t.

Note that this is a relative comparison in the 64-bit space and is not transitive: if a is before b, and b is before c, a still may be after c.

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pub fn is_after(self, t: Self) -> bool

Returns whether self is after t.

See the comment about transitivity in Self::is_before.

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pub fn checked_sub(self, t: Self) -> Option<Duration>

Returns the time between self and t, returning None if self is before t.

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pub fn min(self, t: Self) -> Self

Returns self or t, whichever is earlier.

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pub fn max(self, t: Self) -> Self

Returns self or t, whichever is later.

Trait Implementations§

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impl Clone for VmTime

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fn clone(&self) -> VmTime

Returns a copy 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 VmTime

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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 DefaultEncoding for VmTime

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type Encoding = TransparentEncoding<<u64 as DefaultEncoding>::Encoding>

The encoding to use for the serialization. Read more
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impl Inspect for VmTime

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fn inspect(&self, req: Request<'_>)

Inspects the object.
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impl PartialEq for VmTime

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fn eq(&self, other: &VmTime) -> 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 Transparent for VmTime

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type Inner = u64

The inner type.
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const OFFSET: usize = 0usize

The offset of the inner type. This should almost always be zero unless Rust decides to add some padding at the beginning in some debug mode.
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impl Copy for VmTime

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impl Eq for VmTime

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impl StructuralPartialEq for VmTime

Auto Trait Implementations§

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impl Freeze for VmTime

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impl RefUnwindSafe for VmTime

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impl Send for VmTime

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impl Sync for VmTime

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impl Unpin for VmTime

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impl UnwindSafe for VmTime

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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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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: Into<T>,

Converts self into T using Into<T>. Read more
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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
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Formats each item in a sequence. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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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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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where Self: Deref<Target = T>, T: ?Sized,

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type Error = Infallible

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

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