# Struct cargo::sources::registry::http_remote::Downloads

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    struct Downloads<'cfg> {
        pending: HashMap<usize, (Download<'cfg>, EasyHandle)>,
        pending_paths: HashSet<PathBuf>,
        sleeping: SleepTracker<(Download<'cfg>, Easy)>,
        results: HashMap<PathBuf, CargoResult<CompletedDownload>>,
        next: usize,
        progress: RefCell<Option<Progress<'cfg>>>,
        downloads_finished: usize,
        blocking_calls: usize,
    }

Expand description

Helper for downloading crates.

## Fields§

§`pending: HashMap<usize, (Download<'cfg>, EasyHandle)>`

When a download is started, it is added to this map. The key is a “token” (see `Download::token`). It is removed once the download is finished.

§`pending_paths: HashSet<PathBuf>`

Set of paths currently being downloaded. This should stay in sync with `pending`.

§`sleeping: SleepTracker<(Download<'cfg>, Easy)>`

Downloads that have failed and are waiting to retry again later.

§`results: HashMap<PathBuf, CargoResult<CompletedDownload>>`

The final result of each download.

§`next: usize`

The next ID to use for creating a token (see `Download::token`).

§`progress: RefCell<Option<Progress<'cfg>>>`

Progress bar.

§`downloads_finished: usize`

Number of downloads that have successfully finished.

§`blocking_calls: usize`

Number of times the caller has requested blocking. This is used for an estimate of progress.

## Implementations§

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### impl<'cfg> Downloads<'cfg>

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#### fn tick(&self) -> CargoResult<()>

## Auto Trait Implementations§

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### impl<'cfg> !RefUnwindSafe for Downloads<'cfg>

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### impl<'cfg> !Send for Downloads<'cfg>

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### impl<'cfg> !Sync for Downloads<'cfg>

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### impl<'cfg> Unpin for Downloads<'cfg>

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### impl<'cfg> !UnwindSafe for Downloads<'cfg>

## Blanket Implementations§

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### impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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> Same<T> for T

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#### type Output = T

Should always be `Self`
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### impl<T, U> TryFrom<U> for Twhere 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 Twhere 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<V, T> VZip<V> for Twhere V: MultiLane<T>,

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#### fn vzip(self) -> V

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size:328 bytes