forked from mirror/async-std
3dd59d7056
* Refactor the task module * Fix clippy warning * Simplify task-local entries * Reduce the amount of future wrapping * Cleanup * Simplify stealing
36 lines
1 KiB
Rust
36 lines
1 KiB
Rust
use crate::io;
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use crate::path::Path;
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use crate::task::spawn_blocking;
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/// Creates a hard link on the filesystem.
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///
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/// The `dst` path will be a link pointing to the `src` path. Note that operating systems often
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/// require these two paths to be located on the same filesystem.
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///
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/// This function is an async version of [`std::fs::hard_link`].
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///
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/// [`std::fs::hard_link`]: https://doc.rust-lang.org/std/fs/fn.hard_link.html
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///
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/// # Errors
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///
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/// An error will be returned in the following situations:
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///
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/// * `src` does not point to an existing file.
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/// * Some other I/O error occurred.
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///
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/// # Examples
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///
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/// ```no_run
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/// # fn main() -> std::io::Result<()> { async_std::task::block_on(async {
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/// #
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/// use async_std::fs;
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///
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/// fs::hard_link("a.txt", "b.txt").await?;
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/// #
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/// # Ok(()) }) }
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/// ```
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pub async fn hard_link<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> io::Result<()> {
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let from = from.as_ref().to_owned();
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let to = to.as_ref().to_owned();
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spawn_blocking(move || std::fs::hard_link(&from, &to)).await
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}
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