rust-lang/rust — pull request #15643 by errordeveloper (2014-07-13 09:25:52+00:00)
Title: Provide a way of obtaining numeric file descriptors.

This is to improve the interoperability with external C libraries.
One should be able to leverage most Rust's standard run-time functions
for openning and closing files with all the error handling etc, while
only making C library calls when it's very neccessary.