[pulseaudio-discuss] Making locking nicer for NFS

[Arun Raghavan]

On Thu, 2011-08-25 at 10:37 -0700, Thomas Bushnell, BSG wrote:
> This method also has the advantage of not relying on lock promotion
> semantics, which (apparently) will make the Windoze version easier.
> 
> 
> Thomas
> 
> On Thu, Aug 25, 2011 at 10:30 AM, David Henningsson
> <david.henningsson at canonical.com> wrote:
>         On 08/21/2011 04:38 PM, Thomas Bushnell, BSG wrote:
>                 Whoops. They need to repeat the read after obtaining
>                 the write lock and
>                 only update the file if the contents are still bad in
>                 that case.
>         
>         
>         Would a good handling of this be:
>         
>         1) Open the cookie read-only
>         2) read the cookie
>         3) close file
>         4) if we have a correct cookie, do nothing more
>         5) if we have the wrong cookie, do the old handling unchanged:
>         open with write lock, check the contents (again), and write if
>         something is (still) wrong.

Thomas, David: Any news on this? Looks like we're agreed on an approach
and this "just" needs to be implemented now. :)

-- Arun