On Wed, Apr 8, 2009 at 6:42 PM, Heikki Linnakangas
<[email protected]> wrote:
> Dave Page wrote:
>>
>> On Wednesday, April 8, 2009, Josh Berkus <[email protected]> wrote:
>>>
>>> Presumably fadvise is useless on Windows. Anyone know?
>>
>> It is.
>
> cygwin supports POSIX_FADV_SEQUENTIAL (and POSIX_FADV_NORMAL to revert it),
> but not any of the other flags. It maps it to NtSetInformationFile() like
> this:
>
>> if (advice == POSIX_FADV_SEQUENTIAL)
>> fmi.Mode |= FILE_SEQUENTIAL_ONLY;
>> status = NtSetInformationFile (get_handle (), &io, &fmi, sizeof fmi,
>> FileModeInformation);
Which is only useful with async IO as far as I'm aware.
--
Dave Page
EnterpriseDB UK: http://www.enterprisedb.com
