Re: Win32 Wheel::Run Issues (Reformated)

On Mon, Jun 25, 2007 at 03:13:31PM +1200, Jeremy Palmer wrote:
> Hi,
> 
> I'm building a Win32 POE application that need to make a non-blocking call to 
> a function in an external Perl package. This function takes references to 
> Perl objects and array references (however no subroutine refs). 
> 
> I've looked at the options for completing this sort of task with 
> POE::Component::Child & Wheel::Run + Filter::Reference, however there seems 
> to be one limiting factor here - Win32 fork emulation.
> 
> The Win32 fork emulation seems very buggy. In tests I've used with Wheel::Run 
> I get fork failures (i.e. "fork() failed: Resource temporarily unavailable") 
> after the 64 calls of fork from the parent process. See the attached simple 
> example that demos the error:

I think that's because fork on win32 is emulated via thread spawn and win32
is restricting you to that many threads.

I'm not enough of a win32ist to be able to be sure of that or tell you what you
need to do to fix it though, sorry.

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