# Struct miri::shims::unix::fs::DirTable

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    pub struct DirTable {
        streams: FxHashMap<u64, OpenDir>,
        next_id: u64,
    }

Expand description

The table of open directories. Curiously, Unix/POSIX does not unify this into the “file descriptor” concept… everything is a file, except a directory is not?

## Fields§

§`streams: FxHashMap<u64, OpenDir>`

Directory iterators used to emulate libc “directory streams”, as used in opendir, readdir, and closedir.

When opendir is called, a directory iterator is created on the host for the target directory, and an entry is stored in this hash map, indexed by an ID which represents the directory stream. When readdir is called, the directory stream ID is used to look up the corresponding ReadDir iterator from this map, and information from the next directory entry is returned. When closedir is called, the ReadDir iterator is removed from the map.

§`next_id: u64`

ID number to be used by the next call to opendir

## Implementations§

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### impl DirTable

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#### fn insert_new(&mut self, read_dir: ReadDir) -> u64

## Trait Implementations§

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### impl Debug for DirTable

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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 DirTable

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#### fn default() -> DirTable

Returns the “default value” for a type. Read more
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### impl VisitProvenance for DirTable

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#### fn visit_provenance(&self, visit: &mut VisitWith<'_>)

## Auto Trait Implementations§

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### impl Freeze for DirTable

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### impl RefUnwindSafe for DirTable

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### impl Send for DirTable

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### impl Sync for DirTable

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### impl Unpin for DirTable

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### impl UnwindSafe for DirTable

## 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> 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> Same for T

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#### type Output = T

Should always be `Self`
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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<V, T> VZip<V> for T
where 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: 40 bytes