lkml.org 
[lkml]   [2002]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: your mail


On Mon, 25 Feb 2002, Rusty Russell wrote:

> > Note that getting a file descriptor is really quite useful - it means that
> > you can pass the file descriptor around through unix domain sockets, for
> > example, and allow sharing of the semaphore across unrelated processes
> > that way.
>
> First, fd passing sucks: you can't leave an fd somewhere and wait for
> someone to pick it up, and they vanish when you exit. Secondly, you

Yes, you can. Please, RTFS - what is passed is not a descriptor, it's
struct file *. As soon as datagram is sent, descriptors are resolved and
after that point descriptor table of sender (or, for that matter, survival
of sender) doesn't matter.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.049 / U:2.428 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site