Expand description
countio
Also check out other xwde
projects here.
The wrapper struct to enable byte counting for std::io::Read
,
std::io::Write
, std::io::Seek
and its asynchronous variants from futures
and tokio
crates.
Features
std
to enablestd::io::{Read, Write, Seek}
. Enabled by default.futures
to enablefutures_io::{AsyncRead, AsyncWrite, AsyncSeek}
.tokio
to enabletokio::io::{AsyncRead, AsyncWrite, AsyncSeek}
.
Examples
std::io::Read
:
use std::io::{BufRead, BufReader};
use countio::Counter;
fn main() {
let reader = "Hello World!".as_bytes();
let reader = BufReader::new(reader);
let mut reader = Counter::new(reader);
let mut buf = String::new();
let len = reader.read_line(&mut buf).unwrap();
assert_eq!(len, reader.reader_bytes());
}
std::io::Write
:
use std::io::{BufWriter, Write};
use countio::Counter;
fn main() {
let writer = Vec::new();
let writer = BufWriter::new(writer);
let mut writer = Counter::new(writer);
let buf = "Hello World!".as_bytes();
let len = writer.write(buf).unwrap();
writer.flush().unwrap();
assert_eq!(len, writer.writer_bytes());
}
Links
Structs
- The
Counter<D>
struct adds byte counting to any reader or writer.