Trait SeekRead

pub trait SeekRead {
    // Required method
    fn seek_read(&mut self, out: &mut [u8], offset: u64) -> Result<usize, Error>;

    // Provided method
    fn seek_read_all(
        &mut self,
        out: &mut [u8],
        offset: u64,
    ) -> Result<(), Error> { ... }
}

Trait to permit an atomic Seek+Read operation

Required Methods

fn seek_read(&mut self, out: &mut [u8], offset: u64) -> Result<usize, Error>

Seek to the offset, relative to the start of the stream, and read some bytes into the provided buffer. The number of bytes read is returned.

Provided Methods

fn seek_read_all(&mut self, out: &mut [u8], offset: u64) -> Result<(), Error>

Reads all data from the offset into the provided buffer. May require multiple file ops & seeks if the calls do not read all the data.

Implementations on Foreign Types

impl SeekRead for File

Available on crate feature std only.

fn seek_read(&mut self, out: &mut [u8], offset: u64) -> Result<usize, Error>

Implementors