SVDRP ignores EOF (clientside close)

[stefan at lucke.in-berlin.de (Stefan Lucke)]

Quoting Frank Schmirler <vdr@xxxxxxxxxxxx>:

> On Wed, 19 Jul 2006 14:20:26 +0200, Stefan Lucke wrote
> > But safe_read() has to be modified, as socket is non-
> > blocking (oldflags |= O_NONBLOCK;), EAGAIN should be handled too:
>
> Before safe_read() select() is called through file.Ready(). So EAGAIN should
> not occur with SVDRP. But of course you're right if safe_read() is intended to
> be called for nonblocking IO without prior select().
>

But select() on files with O_NONBLOCK is like a noop according to this:

http://man.linuxquestions.org/index.php?query=select&type=2&section=2

       Three independent sets of descriptors are  watched.   Those  listed  in
       readfds will be watched to see if characters become available for read-
       ing (more precisely, to see if a read will not block - in particular, a
       file  descriptor	 is also ready on end-of-file), those in writefds will
       be watched to see if a write will not block,  and  those	 in  exceptfds
       will  be	 watched  for  exceptions.   On exit, the sets are modified in
       place to indicate which descriptors actually changed status.

as with O_NONBLOCK a read would never block :-) .

Stefan