Cygwin's writev() non-standard behavior
Corinna Vinschen
corinna-cygwin@cygwin.com
Wed Apr 23 16:44:00 GMT 2014
On Apr 23 17:48, qq qq wrote:
> > I applied a patch to CVS.
>
> Thanks. Although I could not see it in ViewVC -- the page stops loading at the "configure" script.
>
> Anyhow, I suppose that check_iovec still returns EINVAL for count==0 in any read functions: simply returning
> "tot"==0 means EOF in many (if not all) of them.
That's perfectly ok:
If count is zero, read() may detect the errors described below. In the
absence of any errors, or if read() does not check for errors, a read()
with a count of 0 returns zero and has no other effects.
This behaviour is also fine for readv.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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