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## FdTable

# Struct FdTable

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    pub struct FdTable {
        pub fds: BTreeMap<i32, FileDescriptionRef<dyn FileDescription>>,
        next_file_description_id: FdId,
    }

Expand description

The file descriptor table

## Fields§

§`fds: BTreeMap<i32, FileDescriptionRef<dyn FileDescription>>`§`next_file_description_id: FdId`

Unique identifier for file description, used to differentiate between various file description.

## Implementations§

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### impl FdTable

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#### fn new() -> Self

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#### pub(crate) fn init(mute_stdout_stderr: bool) -> FdTable

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#### pub fn new_ref<T: FileDescription>(&mut self, fd: T) -> FileDescriptionRef<T>

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#### pub fn insert_new(&mut self, fd: impl FileDescription) -> i32

Insert a new file description to the FdTable.

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#### pub fn insert(&mut self, fd_ref: FileDescriptionRef<dyn FileDescription>) -> i32

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#### pub fn insert_with_min_num( &mut self, file_handle: FileDescriptionRef<dyn FileDescription>, min_fd_num: i32, ) -> i32

Insert a file description, giving it a file descriptor that is at least `min_fd_num`.

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#### pub fn get( &self, fd_num: i32, ) -> Option<FileDescriptionRef<dyn FileDescription>>

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#### pub fn remove( &mut self, fd_num: i32, ) -> Option<FileDescriptionRef<dyn FileDescription>>

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#### pub fn is_fd_num(&self, fd_num: i32) -> bool

## Trait Implementations§

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### impl Debug for FdTable

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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 VisitProvenance for FdTable

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

## Auto Trait Implementations§

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### impl Freeze for FdTable

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### impl !RefUnwindSafe for FdTable

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### impl !Send for FdTable

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### impl !Sync for FdTable

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### impl Unpin for FdTable

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### impl UnsafeUnpin for FdTable

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### impl !UnwindSafe for FdTable

## 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: 32 bytes