Struct file_api::MainReader

pub struct MainReader {
    pub http_reader: Option<HttpReader>,
    pub file_reader: Option<FileReader>,
}

Fields

http_reader: Option<HttpReader>

file_reader: Option<FileReader>

Trait Implementations

impl Reader for MainReader

Important traits for MainReader

impl Read for MainReader

fn new() -> MainReader

fn open(&mut self, filename: &str) -> Result<(), String>

fn get_cache_size(&self) -> Option<usize>

fn set_cache_size(&mut self, cache_size: Option<usize>)

fn get_max_end_position(&self) -> Option<u64>

fn set_max_end_position(&mut self, max_end_position: Option<u64>)

fn get_position(&mut self) -> Result<u64, String>

fn get_size(&mut self) -> Result<u64, String>

impl Debug for MainReader

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

Formats the value using the given formatter.

impl Seek for MainReader

fn seek(&mut self, seek_from: SeekFrom) -> Result<u64, Error>

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

fn stream_len(&mut self) -> Result<u64, Error>

🔬 This is a nightly-only experimental API. (seek_convenience)

Returns the length of this stream (in bytes).

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

🔬 This is a nightly-only experimental API. (seek_convenience)

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

impl Read for MainReader

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

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

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

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

unsafe fn initializer(&self) -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer)

Determines if this Reader can work with buffers of uninitialized memory.

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

Read all bytes until EOF in this source, placing them into buf.

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

Read all bytes until EOF in this source, appending them to buf.

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

Read the exact number of bytes required to fill buf.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an [Iterator] over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R> where
    R: Read, 

Creates an adaptor which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.