Struct otter_api_tests::otter_support::imports::unix::prelude::BorrowedFd
1.63.0 · source · [−]#[repr(transparent)]pub struct BorrowedFd<'fd> { /* private fields */ }Expand description
A borrowed file descriptor.
This has a lifetime parameter to tie it to the lifetime of something that owns the file descriptor.
This uses repr(transparent) and has the representation of a host file
descriptor, so it can be used in FFI in places where a file descriptor is
passed as an argument, it is not captured or consumed, and it never has the
value -1.
This type’s .to_owned() implementation returns another BorrowedFd
rather than an OwnedFd. It just makes a trivial copy of the raw file
descriptor, which is then borrowed under the same lifetime.
Implementations
sourceimpl<'_> BorrowedFd<'_>
impl<'_> BorrowedFd<'_>
const: 1.63.0 · sourcepub const unsafe fn borrow_raw(fd: i32) -> BorrowedFd<'_>
pub const unsafe fn borrow_raw(fd: i32) -> BorrowedFd<'_>
Return a BorrowedFd holding the given raw file descriptor.
Safety
The resource pointed to by fd must remain open for the duration of
the returned BorrowedFd, and it must not have the value -1.
sourceimpl<'_> BorrowedFd<'_>
impl<'_> BorrowedFd<'_>
sourcepub fn try_clone_to_owned(&self) -> Result<OwnedFd, Error>
pub fn try_clone_to_owned(&self) -> Result<OwnedFd, Error>
Creates a new OwnedFd instance that shares the same underlying file
description as the existing BorrowedFd instance.
Trait Implementations
sourceimpl<'_> AsFd for BorrowedFd<'_>
impl<'_> AsFd for BorrowedFd<'_>
sourcefn as_fd(&self) -> BorrowedFd<'_>
fn as_fd(&self) -> BorrowedFd<'_>
Borrows the file descriptor. Read more
sourceimpl<'_> AsRawFd for BorrowedFd<'_>
impl<'_> AsRawFd for BorrowedFd<'_>
sourceimpl<'fd> Clone for BorrowedFd<'fd>
impl<'fd> Clone for BorrowedFd<'fd>
sourcefn clone(&self) -> BorrowedFd<'fd>
fn clone(&self) -> BorrowedFd<'fd>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
sourceimpl<'_> Debug for BorrowedFd<'_>
impl<'_> Debug for BorrowedFd<'_>
impl<'fd> Copy for BorrowedFd<'fd>
Auto Trait Implementations
impl<'fd> RefUnwindSafe for BorrowedFd<'fd>
impl<'fd> Send for BorrowedFd<'fd>
impl<'fd> Sync for BorrowedFd<'fd>
impl<'fd> Unpin for BorrowedFd<'fd>
impl<'fd> UnwindSafe for BorrowedFd<'fd>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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impl<A> DynCastExt for A
fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,
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self
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self
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fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
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fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
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