[Bug 1695] bytes_transfered = rtems_rfs_rtems_error

bugzilla-daemon at rtems.org bugzilla-daemon at rtems.org
Thu Sep 2 16:38:47 UTC 2010


--- Comment #9 from Gedare <giddyup44 at yahoo.com> 2010-09-02 11:38:46 CDT ---
(In reply to comment #8)
> (In reply to comment #7)
> > (In reply to comment #6)
> > > My understanding is that assigning a negative value to
> > > bytes_transfered does not make any sense -- unless you are reference counting
> > > some bi-directional traffic, you shouldn't have a negative number for a size
> > > value.
> > 
> > This is the API defined by the read handler and it matches the 'read' call's
> > API.

Sorry, double clicked the last message (hit reply then commit on accident).

I see that bytes_transfered is set to -1 to indicate an error condition, which
is flagged by a positive value of rc.  However, -1 is then returned as a
ssize_t, which is an unsigned (opaque) type for storing size values.  I think
this is Ralf's complaint about the code being 'dirty'.

I don't know that there is anything worth fixing here though, especially if the
API is already in-use.

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