Re: TAP tests aren't using the magic words for Windows file access

On 2019-Nov-05, Michael Paquier wrote:

> On Sun, Nov 03, 2019 at 10:53:00PM -0500, Tom Lane wrote:
> > That is, TestLib::slurp_file is failing to read a file.  Almost
> > certainly, "permission denied" doesn't really mean a permissions
> > problem, but failure to specify the file-opening flags needed to
> > allow concurrent access on Windows.  We fixed this in pg_ctl
> > itself in commit 0ba06e0bf ... but we didn't fix the TAP
> > infrastructure.  Is there an easy way to get Perl on board
> > with that?
> 
> If we were to use Win32API::File so as the file is opened in shared
> mode, we would do the same as what our frontend/backend code does (see
> $uShare):
> https://metacpan.org/pod/Win32API::File

Compatibility-wise, that should be okay, since that module appears to
have been distributed with Perl core early on.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services