[libdispatch-dev] Windows compatibility

Bobby Powers bobbypowers at gmail.com
Fri Sep 25 16:40:14 PDT 2009


On Fri, Sep 25, 2009 at 11:14 PM, Robert N. M. Watson
<robert at fledge.watson.org> wrote:
>
> On 25 Sep 2009, at 21:44, Mark Heily wrote:
>
>>> This is my intuition also: I think you'd want to have an entirely
>>> independent implementation using native Windows primitives, and simply
>>> give it the same (or similar) API on top.
>>
>> Has anyone considered using the Apache Portable Runtime (APR)? They have
>> many
>> portable goodies including lock-free FIFO queues and thread pools. If
>> libdispatch was rewritten to use APR instead of POSIX interfaces, it
>> should
>> work fine on Windows.
>
>
> Hi Mark--
>
> This is an interesting idea. My first thought was to look at whether
> pthreads + libevent would provide a reasonable foundation for a libnqkqueue
> ("not quite kqueue") wrapper library implementing (roughly) the kqueue
> interface on non-supporting systems. There are some problems with this idea,
> not least that libevent can't provided a unified event source for some of
> the types of events supported by kqueue. On the other hand, it would offer
> significantly more portability (at the cost of less efficiency and fewer
> capabilities). I've not looked at apr yet, but maybe this would be a better
> portability foundation. I need to spend some time comparing semantics and
> capabilities of kqueue and libevent anyway, and I'll add apr to the mix.

I'd love to hear what you find out about this when you look into it

bobby

> Robert
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