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DecodeOpts

Struct DecodeOpts 

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pub struct DecodeOpts {
    pub threads: Option<usize>,
    pub governor: Option<Arc<Governor>>,
    pub memory_limit: Option<u64>,
}

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§threads: Option<usize>

Worker hint. The governor has final say; this is only a request.

§governor: Option<Arc<Governor>>

The shared worker/memory budget. None means single-threaded — a codec parallelises only if handed a governor, never from an ambient global.

§memory_limit: Option<u64>

Cap on memory a decoder may ask the allocator for. None means unbounded, which is the library default; the CLI always sets a value.

This exists because three pure codecs size a dictionary buffer from a value the file declares in its own header, before producing any output — measured at 69.35 MB peak RSS for a 60-byte .xz, and 538 MB for a crafted 114-byte .lz that decoded correctly, so the cost came purely from the declaration. --max-ratio cannot see it: that guard counts decoded output bytes and the allocation precedes any output.

Exceeding it is crate::Error::ResourceLimit (exit 6), never Corrupt (exit 5) — the file is not damaged, this build simply will not allocate that much.

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impl Clone for DecodeOpts

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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 Debug for DecodeOpts

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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 DecodeOpts

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fn default() -> Self

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

Auto Trait Implementations§

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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<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> 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<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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where T: Clone,

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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.