Re: Question about creating modules


"Mr Cheeky Monkey" <cheeky.monkey23@xxxxxxxxxxxxx> wrote in message
news:u8udnV4oIYYcJuXZnZ2dnUVZ8qGdnZ2d@xxxxxxxxx
Hi,

I'm new to perl and need a little help. I'm using ActiveState Perl under
windows. I've tried creating a module from a C++ source using swig and the
methods outlined in both the perl documentation and the swig
documentation.
I have VC++ installed and making the dll files works successfully.

Which version of VC++ ? With ActiveState perl you really should be using 6.0
(as that's what was used to build perl), though you'll *generally* get good
milage from other (later) VC++ versions. I don't know if/how such a mismatch
would impact upon swig.

However
when I try to load the module the perl interpreter seems to loop forever.
The problem seems to occur at the bootstrap stage. Unfortunately I don't
know enough to make a good guess as too what's going on.


In fact, I know stuff-all about swig - so, if you're committed to using
swig, I can't be of much use :-)

However, if you're simply trying to access a dll, there are a number of
other options.
You could use Inline::C (or perhaps in this case Inline::CPP would be more
appropriate).
Or you could write your own extension (module) with XS - which is pretty
much what Inline::C/Inline::CPP do, though they do it using an automated
process. There's a good example of accessing a dll in the Inline::C cookbook
(see the section "Just Desserts" in perldoc Inline::C-Cookbook).
Another alternative is to use Win32::API - for which no compiler is needed,
and which is a fairly popular hack (though I personally prefer to avoid it).


I'm using version 5.8.8 of perl and I have stripped out everything in my
C++
code, recompiled and made the library and still it wont load.


Make sure you're using build 817 (or later):
perl -e "print $ActivePerl::VERSION"

Build 816 (which is a 5.8.8 build) is a bad build and should be avoided
altogether.

Cheers,
Rob


.

Relevant Pages

  • Re: Win32::API cannot load any DLL?
    ... I've decided to try SWIG as my solution. ... as Ruby to load my dll without any problem. ... I hope you tried to run the script as 'perl msdll.pl' not 'perl msdll.dll' ...
    (comp.lang.perl.misc)
  • Re: SWIG sample compile problem
    ... Alex wrote: ... > I'm using Cygwin and ActiveState perl to try to compile a sample ... > I first do swig -perl5 hello.i which works fine. ...
    (comp.lang.perl.misc)
  • Question about creating modules
    ... I'm new to perl and need a little help. ... methods outlined in both the perl documentation and the swig documentation. ... I have VC++ installed and making the dll files works successfully. ... and the DLL is really just a class definition with a list of pure functions ...
    (comp.lang.perl.modules)
  • Win32::Daemon and SWIG
    ... i'v written a software that can de/encrypt perlscripts and start them ... Then I made that usable for perl with SWIG. ... Now I tried making a Win32 Service out of it with Win32::Daemon. ...
    (comp.lang.perl.modules)
  • Trouble with writable shareable psect in library
    ... I'm attempting to compile and link a simple C language test routine into ... a shareable library using SWIG 1.3.21 so that it can be run from a Perl ...
    (comp.os.vms)