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DiskFloor

Struct DiskFloor 

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pub struct DiskFloor {
    pub percent: u8,
    pub bytes: u64,
}
Expand description

How much must stay free, as a percentage of the filesystem and as an absolute byte count; the larger of the two is the floor.

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§percent: u8

Percent of f_blocks that must remain available. 0 disables the percentage term.

§bytes: u64

Bytes that must remain available. 0 disables the absolute term.

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impl DiskFloor

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pub fn parse(spec: &str) -> Result<DiskFloor, String>

--disk-floor’s grammar. A comma-separated list of terms, each either a percentage (5%) or a byte count with a unit (2GiB, 500M, 1T, 4096); the larger of the two kinds wins at measurement time. A term of one kind replaces the default of that kind, so --disk-floor 10% keeps the 2 GiB absolute floor and --disk-floor 0%,512MiB is a pure byte floor. 0 on both is refused by name: a gate that can never refuse is not a gate, and an operator who wants none should not have one that merely looks like one.

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pub fn bytes_for(&self, total: u64) -> u64

The floor in bytes for a filesystem of total bytes.

Trait Implementations§

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impl Clone for DiskFloor

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for DiskFloor

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impl Debug for DiskFloor

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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 Default for DiskFloor

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for DiskFloor

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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 Eq for DiskFloor

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impl PartialEq for DiskFloor

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for DiskFloor

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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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
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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> 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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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Read<Exclusive, BecauseExclusive> for T
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
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type Owned = T

The resulting type after obtaining ownership.
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type Error = !

The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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