[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Code for testing hurdselect.c
From: |
Richard Braun |
Subject: |
Re: Code for testing hurdselect.c |
Date: |
Thu, 18 Oct 2012 11:12:22 +0200 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Thu, Oct 18, 2012 at 09:13:28AM +0200, Svante Signell wrote:
> On Tue, 2012-10-16 at 23:40 +0200, Samuel Thibault wrote:
> > Hello,
> >
> > Svante Signell, le Fri 24 Aug 2012 04:52:15 +0200, a écrit :
> > > - file descriptors were read, sorted, and the good ones registered.
Why sorted ? How do you know the "good ones" from the others ?
> > I have to say I don't understand why doing it. If there is any file
> > descriptor which is not valid, the whole call has to return EBADF,
> > that's what POSIX asks.
>
> According to POSIX that is correct for select(). However, I think you
> missed the line below in my message:
> Note: Only for the poll case, select was not yet implemented!
The poll() call was added after select() ...
> And there POSIX says:
> The poll() function shall support regular files, terminal and
> pseudo-terminal devices, FIFOs, pipes, sockets and [XSR] [Option Start]
> STREAMS-based files. [Option End] The behavior of poll() on elements of
> fds that refer to other types of file is unspecified.
> and
> RETURN VALUE
> Upon successful completion, poll() shall return a non-negative
> value. A positive value indicates the total number of file
> descriptors that have been selected (that is, file descriptors
> for which the revents member is non-zero).
I also still don't see the point.
--
Richard Braun
- Re: Code for testing hurdselect.c, Samuel Thibault, 2012/10/16
- Re: Code for testing hurdselect.c, Svante Signell, 2012/10/18
- Re: Code for testing hurdselect.c,
Richard Braun <=
- Re: Code for testing hurdselect.c, Svante Signell, 2012/10/18
- Re: Code for testing hurdselect.c, Samuel Thibault, 2012/10/18
- Re: Code for testing hurdselect.c, Svante Signell, 2012/10/18
- Re: Code for testing hurdselect.c, Samuel Thibault, 2012/10/18
- Re: Code for testing hurdselect.c, Svante Signell, 2012/10/18
- Re: Code for testing hurdselect.c, Samuel Thibault, 2012/10/19