filedesc

This crate exposes a single type: FileDesc, which acts as a thin wrapper around open file descriptors.

The wrapped file descriptor is closed when the wrapper is dropped, unless FileDesc::into_raw_fd() was called.

A raw file descriptor can be wrapped directly using FileDesc::from_raw_fd(), or it can be duplicated and then wrapped using FileDesc::duplicate_raw_fd(). It is also possible to duplicate an already-wrapper file descriptor using FileDesc::duplicate(). If the platform supports it, all duplicated file descriptors are created with the close-on-exec flag set atomically,

Example

use filedesc::FileDesc;
let fd = unsafe { FileDesc::from_raw_fd(raw_fd) };
let duplicated = fd.duplicate()?;
assert_eq!(duplicated.get_close_on_exec()?, true);

duplicated.set_close_on_exec(false)?;
assert_eq!(duplicated.get_close_on_exec()?, false);