Struct io_arrays::ArrayReader[−][src]

pub struct ArrayReader { /* fields omitted */ }

Expand description

A random-access input source.

Implementations

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impl ArrayReader

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

Convert a File into a ArrayReader.

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pub fn bytes(bytes: &[u8 ]) -> Result<Self>

Copy a slice of bytes into a memory buffer to allow it to be accessed in the manner of an array.

Trait Implementations

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impl Array for ArrayReader

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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 ArrayReader

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

Borrows the file descriptor. Read more

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impl AsRawFd for ArrayReader

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fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor. Read more

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impl Debug for ArrayReader

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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 ReadAt for ArrayReader

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

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

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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

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

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<()>

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 Self has an efficient read_vectored_at implementation. Read more

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fn read_via_stream_at(&self, offset: u64) -> Result<StreamReader>

Create a StreamReader which reads from the array at the given offset.

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impl OwnsRaw for ArrayReader

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

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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> 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> 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> AsUnsafeFile for T where
T: AsRawFd + OwnsRaw,

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pub fn as_unsafe_file(&self) -> UnsafeFile

Return the contained unsafe file.

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fn as_file_view(&self) -> View<'_, File>

Utility for returning a value which dereferences to a &File or &mut File. Read more

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unsafe fn as_unscoped_file_view(&self) -> View<'static, File>

Like as_file_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn as_pipe_reader_view(&self) -> View<'_, PipeReader>

Utility for returning a value which dereferences to a &PipeReader or &mut PipeReader. Read more

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unsafe fn as_unscoped_pipe_reader_view(&self) -> View<'static, PipeReader>

Like as_pipe_reader_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn as_pipe_writer_view(&self) -> View<'_, PipeWriter>

Utility for returning a value which dereferences to a &PipeWriter or &mut PipeWriter. Read more

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unsafe fn as_unscoped_pipe_writer_view(&self) -> View<'static, PipeWriter>

Like as_pipe_writer_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn eq_file<Filelike>(&self, other: &Filelike) -> bool where
Filelike: AsUnsafeFile,

Test whether self.as_unsafe_file().as_unsafe_handle() is equal to other.as_unsafe_file().as_unsafe_handle(). Read more

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impl<T> AsUnsafeHandle for T where
T: AsRawFd + OwnsRaw,

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pub fn as_unsafe_handle(&self) -> UnsafeHandle

Return the contained unsafe handle.

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fn eq_handle<Handlelike>(&self, other: &Handlelike) -> bool where
Handlelike: AsUnsafeHandle,

Test whether self.as_unsafe_handle() is equal to other.as_unsafe_handle(). Read more

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impl<T> AsUnsafeSocket for T where
T: AsRawFd + OwnsRaw,

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pub fn as_unsafe_socket(&self) -> UnsafeSocket

Return the contained unsafe socket.

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fn as_tcp_stream_view(&self) -> View<'_, TcpStream>

Utility for returning a value which dereferences to a &TcpStream or &mut TcpStream. Read more

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unsafe fn as_unscoped_tcp_stream_view(&self) -> View<'static, TcpStream>

Like as_tcp_stream_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn as_tcp_listener_view(&self) -> View<'_, TcpListener>

Utility for returning a value which dereferences to a &TcpListener or &mut TcpListener. Read more

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unsafe fn as_unscoped_tcp_listener_view(&self) -> View<'static, TcpListener>

Like as_tcp_listener_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn as_udp_socket_view(&self) -> View<'_, UdpSocket>

Utility for returning a value which dereferences to a &UdpSocket or &mut UdpSocket. Read more

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unsafe fn as_unscoped_udp_socket_view(&self) -> View<'static, UdpSocket>

Like as_udp_socket_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn as_unix_stream_view(&self) -> View<'_, UnixStream>

Utility for returning a value which dereferences to a &UnixStream or &mut UnixStream. Read more

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unsafe fn as_unscoped_unix_stream_view(&self) -> View<'static, UnixStream>

Like as_unix_stream_view, but returns a value which is not explicitly tied to the lifetime of self. Read more

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fn eq_socket<Socketlike>(&self, other: &Socketlike) -> bool where
Socketlike: AsUnsafeSocket,

Test whether self.as_unsafe_socket().as_unsafe_handle() is equal to other.as_unsafe_socket().as_unsafe_handle(). Read more

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

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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,

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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_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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pub fn is_read_vectored_at(&self) -> bool

Determines if this Reader has an efficient read_vectored_at implementation. 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 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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pub fn is_write_vectored_at(&self) -> bool

Determines if this Writer has an efficient write_vectored_at implementation. 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_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 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_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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impl<T> From<T> for T

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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>,

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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.

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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.

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

Performs the conversion.

Struct io_arrays::ArrayReader[−][src]

Implementations

impl ArrayReader

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

pub fn bytes(bytes: &[u8]) -> Result<Self>

Trait Implementations

impl Array for ArrayReader

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

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

impl AsFd for ArrayReader

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

impl AsRawFd for ArrayReader

fn as_raw_fd(&self) -> RawFd

impl Debug for ArrayReader

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

impl ReadAt for ArrayReader

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

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

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

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

fn is_read_vectored_at(&self) -> bool

fn read_via_stream_at(&self, offset: u64) -> Result<StreamReader>

impl OwnsRaw for ArrayReader

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

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> AsRawGrip for T where T: AsRawFd,

pub fn as_raw_grip(&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> AsUnsafeFile for T where T: AsRawFd + OwnsRaw,

pub fn as_unsafe_file(&self) -> UnsafeFile

fn as_file_view(&self) -> View<'_, File>

unsafe fn as_unscoped_file_view(&self) -> View<'static, File>

fn as_pipe_reader_view(&self) -> View<'_, PipeReader>

unsafe fn as_unscoped_pipe_reader_view(&self) -> View<'static, PipeReader>

fn as_pipe_writer_view(&self) -> View<'_, PipeWriter>

unsafe fn as_unscoped_pipe_writer_view(&self) -> View<'static, PipeWriter>

fn eq_file<Filelike>(&self, other: &Filelike) -> bool where Filelike: AsUnsafeFile,

impl<T> AsUnsafeHandle for T where T: AsRawFd + OwnsRaw,

pub fn as_unsafe_handle(&self) -> UnsafeHandle

fn eq_handle<Handlelike>(&self, other: &Handlelike) -> bool where Handlelike: AsUnsafeHandle,

impl<T> AsUnsafeSocket for T where T: AsRawFd + OwnsRaw,

pub fn as_unsafe_socket(&self) -> UnsafeSocket

fn as_tcp_stream_view(&self) -> View<'_, TcpStream>

unsafe fn as_unscoped_tcp_stream_view(&self) -> View<'static, TcpStream>

fn as_tcp_listener_view(&self) -> View<'_, TcpListener>

unsafe fn as_unscoped_tcp_listener_view(&self) -> View<'static, TcpListener>

fn as_udp_socket_view(&self) -> View<'_, UdpSocket>

unsafe fn as_unscoped_udp_socket_view(&self) -> View<'static, UdpSocket>

fn as_unix_stream_view(&self) -> View<'_, UnixStream>

unsafe fn as_unscoped_unix_stream_view(&self) -> View<'static, UnixStream>

fn eq_socket<Socketlike>(&self, other: &Socketlike) -> bool where Socketlike: AsUnsafeSocket,

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

pub fn is_read_vectored_at(&self) -> bool

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

pub fn bytes(bytes: &[u8 ]) -> Result<Self>

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

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

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

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

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> AsRawGrip 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> AsUnsafeFile for T where
T: AsRawFd + OwnsRaw,

fn eq_file<Filelike>(&self, other: &Filelike) -> bool where
Filelike: AsUnsafeFile,

impl<T> AsUnsafeHandle for T where
T: AsRawFd + OwnsRaw,

fn eq_handle<Handlelike>(&self, other: &Handlelike) -> bool where
Handlelike: AsUnsafeHandle,

impl<T> AsUnsafeSocket for T where
T: AsRawFd + OwnsRaw,

fn eq_socket<Socketlike>(&self, other: &Socketlike) -> bool where
Socketlike: AsUnsafeSocket,

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

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