Struct abstutil::FileWithProgress

pub struct FileWithProgress {
    inner: BufReader<File>,
    path: String,
    processed_bytes: usize,
    total_bytes: usize,
    started_at: Instant,
    last_printed_at: Instant,
}

Fields

inner: BufReader<File>

path: String

processed_bytes: usize

total_bytes: usize

started_at: Instant

last_printed_at: Instant

Implementations

impl FileWithProgress

pub fn new(
    path: &str
) -> Result<(FileWithProgress, Box<dyn Fn(&mut Timer<'_>)>), Box<dyn Error>>

Also hands back a callback that'll add the final result to the timer. The caller must run it.

Trait Implementations

impl Read for FileWithProgress

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.

fn is_read_vectored(&self) -> bool

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

Determines if this Reader has an efficient read_vectored implementation.

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.