Re: [HACKERS] pgsql: Add support for TCP keepalives on Windows, both for backend and

Tom Lane wrote:
> Magnus Hagander <magnus(at)hagander(dot)net> writes:
>
>> Seems pretty simple - mingw doesn't have support for this. We have two
>> ways to deal with that I think:
>> 1) Disable it on mingw.
>> 2) Include it in our custom headers.
>>
>
>
>> For #2, what we need to include is the define of SIO_KEEPALIVE_VALS as
>> well as the definition of struct tcp_keepalive.
>>
>
>
>> We've done #2 before at least once, which worked well until mingw
>> suddenly caught up and added it a while later. It's not like this is a
>> new definition in windows, but we need to be ready for them to
>> eventually do that.
>>
>
> Yeah. I'm satisfied with doing #1 and waiting for them to fix it.
>
>
>> I guess there is:
>> 3) write an autoconf test and provide them only when mingw doesn't have it.
>> if we're going with #3, I'll respectfully have to ask somebod yelse to
>> write the autoconf test, that's beyond me I think :-)
>>
>
> An easy approximation would be to make the code #ifdef SIO_KEEPALIVE_VALS.
> That would fail if the mingw guys decide to provide the #define without
> adding the struct at the same time, but that seems moderately unlikely.
>
>
>

+1 for this course of action.

cheers

andrew