Struct Reader
pub struct Reader<'buf, Fd>where
Fd: AsFd,{ /* private fields */ }Available on crate feature
dep_rustix only.Expand description
An inotify event iterator implemented with the read syscall.
See the RawDir API for more details and usage examples as this API is
based on it.
Implementations§
§impl<'buf, Fd> Reader<'buf, Fd>where
Fd: AsFd,
impl<'buf, Fd> Reader<'buf, Fd>where
Fd: AsFd,
pub fn new(fd: Fd, buf: &'buf mut [MaybeUninit<u8>]) -> Reader<'buf, Fd>
pub fn new(fd: Fd, buf: &'buf mut [MaybeUninit<u8>]) -> Reader<'buf, Fd>
Create a new iterator from the given file descriptor and buffer.
§impl<'buf, Fd> Reader<'buf, Fd>where
Fd: AsFd,
impl<'buf, Fd> Reader<'buf, Fd>where
Fd: AsFd,
pub fn next(&mut self) -> Result<InotifyEvent<'_>, Errno> ⓘ
pub fn next(&mut self) -> Result<InotifyEvent<'_>, Errno> ⓘ
Read the next inotify event.
This is similar to [Iterator::next] except that it doesn’t return an
Option, because the stream doesn’t have an ending. It always returns
events or errors.
If there are no events in the buffer and none ready to be read:
- If the file descriptor was opened with
inotify::CreateFlags::NONBLOCK, this will fail withErrno::AGAIN. - Otherwise this will block until at least one event is ready or an error occurs.
pub fn is_buffer_empty(&self) -> bool
pub fn is_buffer_empty(&self) -> bool
Returns true if the internal buffer is empty and will be refilled when
calling next. This is useful to avoid further blocking reads.
Auto Trait Implementations§
impl<'buf, Fd> Freeze for Reader<'buf, Fd>where
Fd: Freeze,
impl<'buf, Fd> RefUnwindSafe for Reader<'buf, Fd>where
Fd: RefUnwindSafe,
impl<'buf, Fd> Send for Reader<'buf, Fd>where
Fd: Send,
impl<'buf, Fd> Sync for Reader<'buf, Fd>where
Fd: Sync,
impl<'buf, Fd> Unpin for Reader<'buf, Fd>where
Fd: Unpin,
impl<'buf, Fd> !UnwindSafe for Reader<'buf, Fd>
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> ByteSized for T
impl<T> ByteSized for T
Source§const BYTE_ALIGN: usize = _
const BYTE_ALIGN: usize = _
The alignment of this type in bytes.
Source§fn byte_align(&self) -> usize ⓘ
fn byte_align(&self) -> usize ⓘ
Returns the alignment of this type in bytes.
Source§fn ptr_size_ratio(&self) -> [usize; 2]
fn ptr_size_ratio(&self) -> [usize; 2]
Source§impl<T, R> Chain<R> for Twhere
T: ?Sized,
impl<T, R> Chain<R> for Twhere
T: ?Sized,
Source§impl<T> ExtAny for T
impl<T> ExtAny for T
Source§fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
Source§impl<T> ExtMem for Twhere
T: ?Sized,
impl<T> ExtMem for Twhere
T: ?Sized,
Source§const NEEDS_DROP: bool = _
const NEEDS_DROP: bool = _
Know whether dropping values of this type matters, in compile-time.
Source§fn mem_align_of_val(&self) -> usize ⓘ
fn mem_align_of_val(&self) -> usize ⓘ
Returns the alignment of the pointed-to value in bytes. Read more
Source§fn mem_size_of_val(&self) -> usize ⓘ
fn mem_size_of_val(&self) -> usize ⓘ
Returns the size of the pointed-to value in bytes. Read more
Source§fn mem_needs_drop(&self) -> bool
fn mem_needs_drop(&self) -> bool
Returns
true if dropping values of this type matters. Read moreSource§fn mem_forget(self)where
Self: Sized,
fn mem_forget(self)where
Self: Sized,
Forgets about
self without running its destructor. Read moreSource§fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
Source§unsafe fn mem_zeroed<T>() -> T
unsafe fn mem_zeroed<T>() -> T
Available on crate feature
unsafe_layout only.Returns the value of type
T represented by the all-zero byte-pattern. Read moreSource§unsafe fn mem_transmute_copy<Src, Dst>(src: &Src) -> Dst
unsafe fn mem_transmute_copy<Src, Dst>(src: &Src) -> Dst
Available on crate feature
unsafe_layout only.Returns the value of type
T represented by the all-zero byte-pattern. Read moreSource§fn mem_as_bytes(&self) -> &[u8] ⓘ
fn mem_as_bytes(&self) -> &[u8] ⓘ
Available on crate feature
unsafe_slice only.§impl<S> FromSample<S> for S
impl<S> FromSample<S> for S
fn from_sample_(s: S) -> S
Source§impl<T> Hook for T
impl<T> Hook for T
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more§impl<F, T> IntoSample<T> for Fwhere
T: FromSample<F>,
impl<F, T> IntoSample<T> for Fwhere
T: FromSample<F>,
fn into_sample(self) -> T
§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError> ⓘ
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError> ⓘ
Returns the layout of the type.
§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.