[rust-dev] How to get the file descriptors of standard I/O types?

Ilya Dmitrichenko errordeveloper at gmail.com
Mon Jul 14 14:47:08 PDT 2014


Nat, I would very much appreciate if you join the discussion on my pull request.

There is also a link to the Stack Overflow answer I got earlier, it
describes how you can get the file descriptor form a lower layer
`libnative` API...

On 14 July 2014 22:26, Nat Pryce <nat.pryce at gmail.com> wrote:
> Are there plans to better link the standard I/O APIs and the platform's
> native I/O?  For example, to control devices (on Linux often done by ioctl,
> which needs a file descriptor), use non-IP protocols (on Linux, different
> socket families, return a file descriptor), multiplex I/O events, etc.
>
> --Nat
>
>
> On 14 July 2014 20:38, Alex Crichton <alex at crichton.co> wrote:
>>
>> There is not currently a method of doing so through the `std::io`
>> apis. While possible through the rustuv and native apis, I would
>> discourage manual use of those crates as they have experimental and
>> volatile APIs.
>>
>> You may be interested in https://github.com/rust-lang/rust/pull/15643
>> which may add support for acquiring the file descriptor. That PR has
>> dome discussion about the hazards of doing so, as well.
>>
>> On Sun, Jul 13, 2014 at 4:43 AM, Nat Pryce <nat.pryce at gmail.com> wrote:
>> > Hi.  I want to use the existing I/O types (files, sockets, etc.) with
>> > epoll.
>> > Is there an API call to get hold of their file descriptors?
>> >
>> > --Nat
>> >
>> > --
>> > http://www.natpryce.com
>> >
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>> > Rust-dev at mozilla.org
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>> >
>
>
>
>
> --
> http://www.natpryce.com
>
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