Struct io_arrays::ArrayReader
source · [−]pub struct ArrayReader { /* private fields */ }
Expand description
A random-access input source.
Implementations
Trait Implementations
sourceimpl Array for ArrayReader
impl Array for ArrayReader
sourceimpl Array for &ArrayReader
impl Array for &ArrayReader
sourceimpl AsFd for ArrayReader
impl AsFd for ArrayReader
sourcefn as_fd(&self) -> BorrowedFd<'_>
fn as_fd(&self) -> BorrowedFd<'_>
Borrows the file descriptor. Read more
sourceimpl AsRawFd for ArrayReader
impl AsRawFd for ArrayReader
sourceimpl Debug for ArrayReader
impl Debug for ArrayReader
sourceimpl ReadAt for ArrayReader
impl ReadAt for ArrayReader
sourcefn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize>
fn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize>
Reads a number of bytes starting from a given offset. Read more
sourcefn read_exact_at(&self, buf: &mut [u8], offset: u64) -> Result<()>
fn read_exact_at(&self, buf: &mut [u8], offset: u64) -> Result<()>
Reads the exact number of byte required to fill buf
from the given
offset. Read more
sourcefn read_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<usize>
fn read_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<usize>
Is to read_vectored
what read_at
is to read
.
sourcefn read_exact_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<()>
fn read_exact_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<()>
Is to read_exact_vectored
what read_exact_at
is to read_exact
.
sourcefn is_read_vectored_at(&self) -> bool
fn is_read_vectored_at(&self) -> bool
Determines if Self
has an efficient read_vectored_at
implementation. Read more
sourcefn read_via_stream_at(&self, offset: u64) -> Result<StreamReader>
fn read_via_stream_at(&self, offset: u64) -> Result<StreamReader>
Create a StreamReader
which reads from the array at the given offset.
Auto Trait Implementations
impl RefUnwindSafe for ArrayReader
impl Send for ArrayReader
impl Sync for ArrayReader
impl Unpin for ArrayReader
impl UnwindSafe for ArrayReader
Blanket Implementations
sourceimpl<T> AsFilelike for T where
T: AsFd,
impl<T> AsFilelike for T where
T: AsFd,
sourcefn as_filelike(&self) -> BorrowedFd<'_>
fn as_filelike(&self) -> BorrowedFd<'_>
Borrows the reference. Read more
sourcefn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FilelikeViewType,
fn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FilelikeViewType,
Return a borrowing view of a resource which dereferences to a &Target
. Read more
sourceimpl<T> AsGrip for T where
T: AsFd,
impl<T> AsGrip for T where
T: AsFd,
sourcefn as_grip(&self) -> BorrowedFd<'_>
fn as_grip(&self) -> BorrowedFd<'_>
Extracts the grip.
sourceimpl<T> AsRawFilelike for T where
T: AsRawFd,
impl<T> AsRawFilelike for T where
T: AsRawFd,
sourcefn as_raw_filelike(&self) -> i32
fn as_raw_filelike(&self) -> i32
Returns the raw value.
sourceimpl<T> AsRawGrip for T where
T: AsRawFd,
impl<T> AsRawGrip for T where
T: AsRawFd,
sourcefn as_raw_grip(&self) -> i32
fn as_raw_grip(&self) -> i32
Extracts the raw grip.
sourceimpl<T> AsRawSocketlike for T where
T: AsRawFd,
impl<T> AsRawSocketlike for T where
T: AsRawFd,
sourcefn as_raw_socketlike(&self) -> i32
fn as_raw_socketlike(&self) -> i32
Returns the raw value.
sourceimpl<T> AsSocketlike for T where
T: AsFd,
impl<T> AsSocketlike for T where
T: AsFd,
sourcefn as_socketlike(&self) -> BorrowedFd<'_>
fn as_socketlike(&self) -> BorrowedFd<'_>
Borrows the reference.
sourcefn as_socketlike_view<Target>(&self) -> SocketlikeView<'_, Target> where
Target: SocketlikeViewType,
fn as_socketlike_view<Target>(&self) -> SocketlikeView<'_, Target> where
Target: SocketlikeViewType,
Return a borrowing view of a resource which dereferences to a &Target
. Read more
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
sourceimpl<T> FileIoExt for T where
T: AsFilelike,
impl<T> FileIoExt for T where
T: AsFilelike,
sourcefn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<(), Error>
fn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<(), Error>
Announce the expected access pattern of the data at the given offset.
sourcefn allocate(&self, offset: u64, len: u64) -> Result<(), Error>
fn allocate(&self, offset: u64, len: u64) -> Result<(), Error>
Allocate space in the file, increasing the file size as needed, and ensuring that there are no holes under the given range. Read more
sourcefn read(&self, buf: &mut [u8]) -> Result<usize, Error>
fn read(&self, buf: &mut [u8]) -> Result<usize, Error>
Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
sourcefn read_exact(&self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&self, buf: &mut [u8]) -> Result<(), Error>
Read the exact number of bytes required to fill buf
. Read more
sourcefn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize, Error>
fn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize, Error>
Reads a number of bytes starting from a given offset. Read more
sourcefn read_exact_at(&self, buf: &mut [u8], offset: u64) -> Result<(), Error>
fn read_exact_at(&self, buf: &mut [u8], offset: u64) -> Result<(), Error>
Reads the exact number of byte required to fill buf from the given offset. Read more
sourcefn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like read
, except that it reads into a slice of buffers. Read more
sourcefn read_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<usize, Error>
fn read_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<usize, Error>
Is to read_vectored
what read_at
is to read
.
sourcefn is_read_vectored_at(&self) -> bool
fn is_read_vectored_at(&self) -> bool
Determines if this Read
er has an efficient read_vectored_at
implementation. Read more
sourcefn read_to_end(&self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
fn read_to_end(&self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>
Read all bytes until EOF in this source, placing them into buf
. Read more
sourcefn read_to_end_at(
&self,
buf: &mut Vec<u8, Global>,
offset: u64
) -> Result<usize, Error>
fn read_to_end_at(
&self,
buf: &mut Vec<u8, Global>,
offset: u64
) -> Result<usize, Error>
Read all bytes, starting at offset
, until EOF in this source, placing
them into buf
. Read more
sourcefn read_to_string(&self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&self, buf: &mut String) -> Result<usize, Error>
Read all bytes until EOF in this source, appending them to buf
. Read more
sourcefn read_to_string_at(
&self,
buf: &mut String,
offset: u64
) -> Result<usize, Error>
fn read_to_string_at(
&self,
buf: &mut String,
offset: u64
) -> Result<usize, Error>
Read all bytes, starting at offset
, until EOF in this source,
appending them to buf
. Read more
sourcefn peek(&self, buf: &mut [u8]) -> Result<usize, Error>
fn peek(&self, buf: &mut [u8]) -> Result<usize, Error>
Read bytes from the current position without advancing the current position. Read more
sourcefn write(&self, buf: &[u8]) -> Result<usize, Error>
fn write(&self, buf: &[u8]) -> Result<usize, Error>
Write a buffer into this writer, returning how many bytes were written. Read more
sourcefn write_all(&self, buf: &[u8]) -> Result<(), Error>
fn write_all(&self, buf: &[u8]) -> Result<(), Error>
Attempts to write an entire buffer into this writer. Read more
sourcefn write_at(&self, buf: &[u8], offset: u64) -> Result<usize, Error>
fn write_at(&self, buf: &[u8], offset: u64) -> Result<usize, Error>
Writes a number of bytes starting from a given offset. Read more
sourcefn write_all_at(&self, buf: &[u8], offset: u64) -> Result<(), Error>
fn write_all_at(&self, buf: &[u8], offset: u64) -> Result<(), Error>
Attempts to write an entire buffer starting from a given offset. Read more
sourcefn write_vectored(&self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>
fn write_vectored(&self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>
Like write
, except that it writes from a slice of buffers. Read more
sourcefn write_vectored_at(
&self,
bufs: &[IoSlice<'_>],
offset: u64
) -> Result<usize, Error>
fn write_vectored_at(
&self,
bufs: &[IoSlice<'_>],
offset: u64
) -> Result<usize, Error>
Is to write_vectored
what write_at
is to write
.
sourcefn is_write_vectored_at(&self) -> bool
fn is_write_vectored_at(&self) -> bool
Determines if this Write
r has an efficient write_vectored_at
implementation. Read more
sourcefn flush(&self) -> Result<(), Error>
fn flush(&self) -> Result<(), Error>
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
sourcefn write_fmt(&self, fmt: Arguments<'_>) -> Result<(), Error>
fn write_fmt(&self, fmt: Arguments<'_>) -> Result<(), Error>
Writes a formatted string into this writer, returning any error encountered. Read more
sourcefn seek(&self, pos: SeekFrom) -> Result<u64, Error>
fn seek(&self, pos: SeekFrom) -> Result<u64, Error>
Seek to an offset, in bytes, in a stream. Read more
sourcefn stream_position(&self) -> Result<u64, Error>
fn stream_position(&self) -> Result<u64, Error>
Returns the current seek position from the start of the stream. Read more
sourcefn read_exact_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<(), Error>
fn read_exact_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<(), Error>
Is to read_vectored
what read_exact
is to read
.
sourcefn read_exact_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<(), Error>
fn read_exact_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<(), Error>
Is to read_exact_vectored
what read_exact_at
is to read_exact
.
sourceimpl<T> GetSetFdFlags for T
impl<T> GetSetFdFlags for T
sourcefn get_fd_flags(&self) -> Result<FdFlags, Error> where
T: AsFilelike,
fn get_fd_flags(&self) -> Result<FdFlags, Error> where
T: AsFilelike,
Query the “status” flags for the self
file descriptor.
sourcefn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error> where
T: AsFilelike,
fn new_set_fd_flags(&self, fd_flags: FdFlags) -> Result<SetFdFlags<T>, Error> where
T: AsFilelike,
Create a new SetFdFlags
value for use with set_fd_flags
. Read more
sourcefn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error> where
T: AsFilelike,
fn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error> where
T: AsFilelike,
Set the “status” flags for the self
file descriptor. Read more
sourceimpl<T> IsReadWrite for T where
T: AsFilelike,
impl<T> IsReadWrite for T where
T: AsFilelike,
sourceimpl<T> IsTerminal for T where
T: AsFilelike,
impl<T> IsTerminal for T where
T: AsFilelike,
sourcefn is_terminal(&self) -> bool
fn is_terminal(&self) -> bool
Test whether this output stream is attached to a terminal. Read more