Struct io_arrays::ArrayWriter

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pub struct ArrayWriter { /* private fields */ }

Expand description

A random-access output sink.

Implementations

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impl ArrayWriter

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pub fn file<Filelike: IntoFilelike + Write + Seek>(filelike: Filelike) -> Self

Convert a File into a ArrayWriter.

The file must not be opened in append mode.

Trait Implementations

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impl Array for ArrayWriter

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fn metadata(&self) -> Result<Metadata>

Return the Metadata for the array. This is similar to std::fs::File::metadata, though it returns fewer fields since the underlying device may not be an actual filesystem inode. Read more

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fn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<()>

Announce the expected access pattern of the data at the given offset. Read more

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impl AsFd for ArrayWriter

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fn as_fd(&self) -> BorrowedFd<'_>

Borrows the file descriptor. Read more

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impl AsRawFd for ArrayWriter

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fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor. Read more

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impl Debug for ArrayWriter

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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 WriteAt for ArrayWriter

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fn write_at(&mut self, buf: &[u8 ], offset: u64) -> Result<usize>

Writes a number of bytes starting from a given offset. Read more

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fn write_all_at(&mut self, buf: &[u8 ], offset: u64) -> Result<()>

Attempts to write an entire buffer starting from a given offset. Read more

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fn write_vectored_at(
 &mut self,
 bufs: &[IoSlice<'_>],
 offset: u64
) -> Result<usize>

Is to write_vectored what write_at is to write.

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fn write_all_vectored_at(
 &mut self,
 bufs: &mut [IoSlice<'_>],
 offset: u64
) -> Result<()>

Is to write_all_vectored what write_all_at is to write_all.

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fn is_write_vectored_at(&self) -> bool

Determines if Self has an efficient write_vectored_at implementation. Read more

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fn copy_from<R: ReadAt>(
 &mut self,
 offset: u64,
 input: &R,
 input_offset: u64,
 len: u64
) -> Result<u64>

Copy len bytes from input at input_offset to self at offset.

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fn set_len(&mut self, size: u64) -> Result<()>

Truncates or extends the underlying array, updating the size of this array to become size. Read more

Auto Trait Implementations

impl RefUnwindSafe for ArrayWriter

impl Send for ArrayWriter

impl Sync for ArrayWriter

impl Unpin for ArrayWriter

impl UnwindSafe for ArrayWriter

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> AsFilelike for T where
T: AsFd,

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pub fn as_filelike(&self) -> BorrowedFd<'_>

Borrows the reference. Read more

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pub fn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FromFilelike + IntoFilelike,

Return a borrowing view of a resource which dereferences to a &Target or &mut Target. Read more

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impl<T> AsGrip for T where
T: AsFd,

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pub fn as_grip(&self) -> BorrowedFd<'_>

Extracts the grip.

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impl<T> AsRawFilelike for T where
T: AsRawFd,

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pub fn as_raw_filelike(&self) -> i32

Returns the raw value.

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impl<T> AsRawGrip for T where
T: AsRawFd,

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pub fn as_raw_grip(&self) -> i32

Extracts the raw grip.

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impl<T> AsRawSocketlike for T where
T: AsRawFd,

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pub fn as_raw_socketlike(&self) -> i32

Returns the raw value.

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impl<T> AsSocketlike for T where
T: AsFd,

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pub fn as_socketlike(&self) -> BorrowedFd<'_>

Borrows the reference.

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pub fn as_socketlike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FromSocketlike + IntoSocketlike,

Return a borrowing view of a resource which dereferences to a &Target or &mut Target. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub 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,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> FileIoExt for T where
T: AsFilelike,

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pub fn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<(), Error>

Announce the expected access pattern of the data at the given offset.

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pub 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

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pub 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

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pub fn read_exact(&self, buf: &mut [u8 ]) -> Result<(), Error>

Read the exact number of bytes required to fill buf. Read more

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pub fn read_at(&self, buf: &mut [u8 ], offset: u64) -> Result<usize, Error>

Reads a number of bytes starting from a given offset. Read more

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pub 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

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pub fn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers. Read more

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pub 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

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pub 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

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pub 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

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pub 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

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pub fn peek(&self, buf: &mut [u8 ]) -> Result<usize, Error>

Read bytes from the current position without advancing the current position. Read more

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pub fn write(&self, buf: &[u8 ]) -> Result<usize, Error>

Write a buffer into this writer, returning how many bytes were written. Read more

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pub fn write_all(&self, buf: &[u8 ]) -> Result<(), Error>

Attempts to write an entire buffer into this writer. Read more

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pub fn write_at(&self, buf: &[u8 ], offset: u64) -> Result<usize, Error>

Writes a number of bytes starting from a given offset. Read more

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pub fn write_all_at(&self, buf: &[u8 ], offset: u64) -> Result<(), Error>

Attempts to write an entire buffer starting from a given offset. Read more

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pub fn write_vectored(&self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more

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pub fn flush(&self) -> Result<(), Error>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

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pub fn write_fmt(&self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more

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pub fn seek(&self, pos: SeekFrom) -> Result<u64, Error>

Seek to an offset, in bytes, in a stream. Read more

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pub fn stream_position(&self) -> Result<u64, Error>

Returns the current seek position from the start of the stream. Read more

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fn read_exact_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<(), Error>

Is to read_vectored what read_exact is to read.

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fn read_vectored_at(
 &self,
 bufs: &mut [IoSliceMut<'_>],
 offset: u64
) -> Result<usize, Error>

Is to read_vectored what read_at is to read.

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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.

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fn is_read_vectored_at(&self) -> bool

Determines if this Reader has an efficient read_vectored_at implementation. Read more

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fn write_all_vectored(&self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

Is to write_vectored what write_all is to write.

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fn write_vectored_at(
 &self,
 bufs: &[IoSlice<'_>],
 offset: u64
) -> Result<usize, Error>

Is to write_vectored what write_at is to write.

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fn write_all_vectored_at(
 &self,
 bufs: &mut [IoSlice<'_>],
 offset: u64
) -> Result<(), Error>

Is to write_all_vectored what write_all_at is to write_all.

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fn is_write_vectored_at(&self) -> bool

Determines if this Writer has an efficient write_vectored_at implementation. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<T> GetSetFdFlags for T

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pub fn get_fd_flags(&self) -> Result<FdFlags, Error> where
T: AsFilelike,

Query the “status” flags for the self file descriptor.

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pub 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

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pub 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

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T> IsReadWrite for T where
T: AsFilelike,

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pub fn is_read_write(&self) -> Result<(bool, bool ), Error>

Test whether the handle is readable and/or writable.

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impl<T> IsTerminal for T where
T: AsFilelike,

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pub fn is_terminal(&self) -> bool

Test whether this output stream is attached to a terminal. Read more

impl<T> SetTimes for T where
T: AsFilelike,

pub fn set_times(
 &self,
 atime: Option<SystemTimeSpec>,
 mtime: Option<SystemTimeSpec>
) -> Result<(), Error>

Set the last access and last modification timestamps of an open file handle. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct io_arrays::ArrayWriter

Implementations

impl ArrayWriter

pub fn file<Filelike: IntoFilelike + Write + Seek>(filelike: Filelike) -> Self

Trait Implementations

impl Array for ArrayWriter

fn metadata(&self) -> Result<Metadata>

fn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<()>

impl AsFd for ArrayWriter

fn as_fd(&self) -> BorrowedFd<'_>

impl AsRawFd for ArrayWriter

fn as_raw_fd(&self) -> RawFd

impl Debug for ArrayWriter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl WriteAt for ArrayWriter

fn write_at(&mut self, buf: &[u8], offset: u64) -> Result<usize>

fn write_all_at(&mut self, buf: &[u8], offset: u64) -> Result<()>

fn write_vectored_at( &mut self, bufs: &[IoSlice<'_>], offset: u64) -> Result<usize>

fn write_all_vectored_at( &mut self, bufs: &mut [IoSlice<'_>], offset: u64) -> Result<()>

fn is_write_vectored_at(&self) -> bool

fn copy_from<R: ReadAt>( &mut self, offset: u64, input: &R, input_offset: u64, len: u64) -> Result<u64>

fn set_len(&mut self, size: u64) -> Result<()>

Auto Trait Implementations

impl RefUnwindSafe for ArrayWriter

impl Send for ArrayWriter

impl Sync for ArrayWriter

impl Unpin for ArrayWriter

impl UnwindSafe for ArrayWriter

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> AsFilelike for T where T: AsFd,

pub fn as_filelike(&self) -> BorrowedFd<'_>

pub fn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where Target: FromFilelike + IntoFilelike,

impl<T> AsGrip for T where T: AsFd,

pub fn as_grip(&self) -> BorrowedFd<'_>

impl<T> AsRawFilelike for T where T: AsRawFd,

pub fn as_raw_filelike(&self) -> i32

impl<T> AsRawGrip for T where T: AsRawFd,

pub fn as_raw_grip(&self) -> i32

impl<T> AsRawSocketlike for T where T: AsRawFd,

pub fn as_raw_socketlike(&self) -> i32

impl<T> AsSocketlike for T where T: AsFd,

pub fn as_socketlike(&self) -> BorrowedFd<'_>

pub fn as_socketlike_view<Target>(&self) -> FilelikeView<'_, Target> where Target: FromSocketlike + IntoSocketlike,

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> FileIoExt for T where T: AsFilelike,

pub fn advise(&self, offset: u64, len: u64, advice: Advice) -> Result<(), Error>

pub fn allocate(&self, offset: u64, len: u64) -> Result<(), Error>

pub fn read(&self, buf: &mut [u8]) -> Result<usize, Error>

pub fn read_exact(&self, buf: &mut [u8]) -> Result<(), Error>

pub fn read_at(&self, buf: &mut [u8], offset: u64) -> Result<usize, Error>

pub fn read_exact_at(&self, buf: &mut [u8], offset: u64) -> Result<(), Error>

pub fn read_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

pub fn read_to_end(&self, buf: &mut Vec<u8, Global>) -> Result<usize, Error>

pub fn read_to_end_at( &self, buf: &mut Vec<u8, Global>, offset: u64) -> Result<usize, Error>

pub fn read_to_string(&self, buf: &mut String) -> Result<usize, Error>

pub fn read_to_string_at( &self, buf: &mut String, offset: u64) -> Result<usize, Error>

pub fn peek(&self, buf: &mut [u8]) -> Result<usize, Error>

pub fn write(&self, buf: &[u8]) -> Result<usize, Error>

pub fn write_all(&self, buf: &[u8]) -> Result<(), Error>

pub fn write_at(&self, buf: &[u8], offset: u64) -> Result<usize, Error>

pub fn write_all_at(&self, buf: &[u8], offset: u64) -> Result<(), Error>

pub fn write_vectored(&self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

pub fn flush(&self) -> Result<(), Error>

pub fn write_fmt(&self, fmt: Arguments<'_>) -> Result<(), Error>

pub fn seek(&self, pos: SeekFrom) -> Result<u64, Error>

pub fn stream_position(&self) -> Result<u64, Error>

fn read_exact_vectored(&self, bufs: &mut [IoSliceMut<'_>]) -> Result<(), Error>

fn read_vectored_at( &self, bufs: &mut [IoSliceMut<'_>], offset: u64) -> Result<usize, Error>

fn read_exact_vectored_at( &self, bufs: &mut [IoSliceMut<'_>], offset: u64) -> Result<(), Error>

fn is_read_vectored_at(&self) -> bool

fn write_all_vectored(&self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

fn write_vectored_at( &self, bufs: &[IoSlice<'_>], offset: u64) -> Result<usize, Error>

fn write_all_vectored_at( &self, bufs: &mut [IoSlice<'_>], offset: u64) -> Result<(), Error>

fn is_write_vectored_at(&self) -> bool

impl<T> From<T> for T

fn write_at(&mut self, buf: &[u8 ], offset: u64) -> Result<usize>

fn write_all_at(&mut self, buf: &[u8 ], offset: u64) -> Result<()>

fn write_vectored_at(
&mut self,
bufs: &[IoSlice<'_>],
offset: u64
) -> Result<usize>

fn write_all_vectored_at(
&mut self,
bufs: &mut [IoSlice<'_>],
offset: u64
) -> Result<()>

fn copy_from<R: ReadAt>(
&mut self,
offset: u64,
input: &R,
input_offset: u64,
len: u64
) -> Result<u64>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> AsFilelike for T where
T: AsFd,

pub fn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FromFilelike + IntoFilelike,

impl<T> AsGrip for T where
T: AsFd,

impl<T> AsRawFilelike for T where
T: AsRawFd,

impl<T> AsRawGrip for T where
T: AsRawFd,

impl<T> AsRawSocketlike for T where
T: AsRawFd,

impl<T> AsSocketlike for T where
T: AsFd,

pub fn as_socketlike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FromSocketlike + IntoSocketlike,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> FileIoExt for T where
T: AsFilelike,

pub fn read(&self, buf: &mut [u8 ]) -> Result<usize, Error>

pub fn read_exact(&self, buf: &mut [u8 ]) -> Result<(), Error>

pub fn read_at(&self, buf: &mut [u8 ], offset: u64) -> Result<usize, Error>

pub fn read_exact_at(&self, buf: &mut [u8 ], offset: u64) -> Result<(), Error>

pub fn read_to_end_at(
&self,
buf: &mut Vec<u8, Global>,
offset: u64
) -> Result<usize, Error>

pub fn read_to_string_at(
&self,
buf: &mut String,
offset: u64
) -> Result<usize, Error>

pub fn peek(&self, buf: &mut [u8 ]) -> Result<usize, Error>

pub fn write(&self, buf: &[u8 ]) -> Result<usize, Error>

pub fn write_all(&self, buf: &[u8 ]) -> Result<(), Error>

pub fn write_at(&self, buf: &[u8 ], offset: u64) -> Result<usize, Error>

pub fn write_all_at(&self, buf: &[u8 ], offset: u64) -> Result<(), Error>

fn read_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<usize, Error>

fn read_exact_vectored_at(
&self,
bufs: &mut [IoSliceMut<'_>],
offset: u64
) -> Result<(), Error>

fn write_vectored_at(
&self,
bufs: &[IoSlice<'_>],
offset: u64
) -> Result<usize, Error>

fn write_all_vectored_at(
&self,
bufs: &mut [IoSlice<'_>],
offset: u64
) -> Result<(), Error>

pub fn get_fd_flags(&self) -> Result<FdFlags, Error> where
T: AsFilelike,

pub fn new_set_fd_flags(
&self,
fd_flags: FdFlags
) -> Result<SetFdFlags<T>, Error> where
T: AsFilelike,

pub fn set_fd_flags(&mut self, set_fd_flags: SetFdFlags<T>) -> Result<(), Error> where
T: AsFilelike,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> IsReadWrite for T where
T: AsFilelike,

pub fn is_read_write(&self) -> Result<(bool, bool ), Error>

impl<T> IsTerminal for T where
T: AsFilelike,

impl<T> SetTimes for T where
T: AsFilelike,

pub fn set_times(
&self,
atime: Option<SystemTimeSpec>,
mtime: Option<SystemTimeSpec>
) -> Result<(), Error>

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,