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Re: Trouble with PERLIO_INIT/PERLIO_TERM changes

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Steve Hay
November 29, 2006 08:45
Re: Trouble with PERLIO_INIT/PERLIO_TERM changes
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demerphq wrote:
> On 11/29/06, Steve Hay <> wrote:
>> I've found that my Win32-SharedFileOpen module currently fails a bunch
>> of tests using bleadperl: the test scripts croak with the error:
>> refcnt_dec: fd 3: 0 <= 0
> Uh, useless datapoint maybe, but why wouldnt Win32API::File fail
> similarly? It supports shared file opens as well...

Because the failure is nothing to do with the "sharing" bit, it is 
something wrong with PerlIO. Win32API::File obviously uses PerlIO 
differently and doesn't trip over the problem.

The attached Foo module is a reproduction of the problem that I'm having 
but now using the plain fopen() function instead of Microsoft's fsopen() 
function. Of course, that makes it a completely useless module, but it 
serves to illustrate the problem.

Using perl-5.8.8 (and bleadperl prior to #29060) the test script in this 
Foo module outputs:


Using bleadperl from #29074 onwards it now croaks with the output:

refcnt_dec: fd 3: 0 <= 0
refcnt_dec: fd 3: 0 <= 0
refcnt_dec: fd 3: 0 <= 0


Radan Computational Ltd.

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