Quelle unix.rs

Sprache: Rust

//! IoVec extensions for Unix platforms.
//!
//! These functions provide conversions to unix specific representations of the
//! vectored data.
//!
//! # Examples
//!
//! ```
//! use iovec::IoVec;
//! use iovec::unix;
//!
//! let a = b"hello".to_vec();
//! let b = b"world".to_vec();
//!
//! let bufs: &[&IoVec] = &[(&a[..]).into(), (&b[..]).into()];
//! let os_bufs = unix::as_os_slice(&bufs[..]);
//!
//! // Use the `os_bufs` slice with `writev`.
//! ```

use IoVec;
use libc;

use std::mem;

/// Convert a slice of `IoVec` refs to a slice of `libc::iovec`.
///
/// The return value can be passed to `writev` bindings.
///
/// # Examples
///
/// ```
/// use iovec::IoVec;
/// use iovec::unix;
///
/// let a = b"hello".to_vec();
/// let b = b"world".to_vec();
///
/// let bufs: &[&IoVec] = &[a[..].into(), b[..].into()];
/// let os_bufs = unix::as_os_slice(bufs);
///
/// // Use the `os_bufs` slice with `writev`.
/// ```
pub fn as_os_slice<'a>(iov: &'a [&IoVec]) -> &'a [libc::iovec] {
unsafe { mem::transmute(iov) }
}

/// Convert a mutable slice of `IoVec` refs to a mutable slice of `libc::iovec`.
///
/// The return value can be passed to `readv` bindings.
///
/// # Examples
///
/// ```
/// use iovec::IoVec;
/// use iovec::unix;
///
/// let mut a = [0; 10];
/// let mut b = [0; 10];
///
/// let bufs: &mut [&mut IoVec] = &mut [(&mut a[..]).into(), (&mut b[..]).into()];
/// let os_bufs = unix::as_os_slice_mut(bufs);
///
/// // Use the `os_bufs` slice with `readv`.
/// ```
pub fn as_os_slice_mut<'a>(iov: &'a mut [&mut IoVec]) -> &le='color:blue'>'a mut [libc::iovec] {
unsafe { mem::transmute(iov) }
}

Messung V0.5 in Prozent

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet am 2026-06-18) ¤

Wurzel

Suchen

PVS Prover

Isabelle Prover

NIST Cobol Testsuite

Cephes Mathematical Library

Vienna Development Method

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.