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buf_copy/linux.rs: drop unused trait #12345

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Merged
sylvestre merged 1 commit into from
May 20, 2026
Merged

buf_copy/linux.rs: drop unused trait #12345

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16 changes: 3 additions & 13 deletions src/uucore/src/lib/features/buf_copy/linux.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,19 +10,9 @@ use crate::error::UResult;
/// Buffer-based copying utilities for unix (excluding Linux).
use std::{
io::{Read, Write},
os::fd::{AsFd, AsRawFd},
os::fd::AsFd,
};

/// A readable file descriptor.
pub trait FdReadable: Read + AsRawFd + AsFd {}

impl<T> FdReadable for T where T: Read + AsFd + AsRawFd {}

/// A writable file descriptor.
pub trait FdWritable: Write + AsFd + AsRawFd {}

impl<T> FdWritable for T where T: Write + AsFd + AsRawFd {}

/// Copy data from `Read` implementor `source` into a `Write` implementor
/// `dest`. This works by reading a chunk of data from `source` and writing the
/// data to `dest` in a loop.
Expand All @@ -36,8 +26,8 @@ impl<T> FdWritable for T where T: Write + AsFd + AsRawFd {}
/// * `dest` - `Write` implementor to copy data to.
pub fn copy_stream<R, S>(src: &mut R, dest: &mut S) -> UResult<()>
where
R: Read + AsFd + AsRawFd,
S: Write + AsFd + AsRawFd,
R: Read + AsFd,
S: Write + AsFd,
{
// If we're on Linux or Android, try to use the splice() system call
// for faster writing. If it works, we're done.
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