Yup the script works perfectly fine if no GUI is created.
In fact I had no intention of writing a GUI as it served my purpose without
one. But certain "non command prompt friendly" friends of mine would like a
GUI. So I tried my hand at creating one.
Let me try undef'ing all the GUI objects and see if it makes a difference.
Else Win32::CreateProcess is probably the way to go. A GUI which spawns a
separate process to do the hard work.
Thanks,
Emmanuel
----- Original Message -----
From: "Robert May" <[EMAIL PROTECTED]>
To: "Emmanuel E" <[EMAIL PROTECTED]>
Cc: <perl-win32-gui-users@lists.sourceforge.net>
Sent: Tuesday, July 19, 2005 11:25 PM
Subject: Re: [win32gui] Re: [perl-win32-gui-users] SSLeay fails when GUI is
initialized
Emmanuel E wrote:
Even here the start_SSL fails.
Can you make a script work without using any GUI (either Win32::GUI ot
Tk). If so, then we can investigate further. If not, then it is likely a
problem in Openssl/Net::SSLeay. The Win32::GUI code goes nowhere near
any of the socket stuff, so it's hard to imagine how Win32::GUI could be
responsible for this particular issue - but, as they say, anything is
possible.
Actually the problem might really be in Openssl and Net::SSLeay. but
folks on the openssl and net::ssleay side are not too interested in
getting it working properly on win32. SSLeay enabled perl scripts just
eat up memory on win32. But since I dont think i can accomplish much by
opening the SSLeay can of worms I just thought if there could be a
workaround on the GUI side.
As I say, if you can show that Win32::GUI is having some undesirable
interaction, then we can look further - but my suspicion is that this is
not a Win32::GUI issue.
Incidentally before switching to Win32::GUI, I attempted doing the same
stuff using Tk. While Tk is thread unsafe, even with a single threaded
script the failure always used to occur at start_SSL(). Tk does have a
Window->destroy function but calling that causes the script to exit. I
didnt find a workaround in Tk to destroy and return to the script. Just
checking out to see if it a GUI->destroy exists in Win32::GUI.
The way you are returning to the script is correct - returning '-1' from a
callback in the dialog phase. Once back in your script, if you undefine
*ALL* variables that are holding Win32::GUI objects (e.g. undef $window;
etc.), then all destructors will get called by the perl garbage collector,
and all windows resources that Win32::GUI used will be cleaned up. (There
are DESTROY() methods on most Win32::GUI classes, but I generally don't
recommend calling them directly)
This list is really fabulous though. Trying to do something on win32 you
dont get treated as though you are from Mars! :)
Good luck with solving your problem.
Rob.
----- Original Message ----- From: "Jeremy White" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <perl-win32-gui-users@lists.sourceforge.net>
Sent: Tuesday, July 19, 2005 10:03 PM
Subject: RE: [perl-win32-gui-users] SSLeay fails when GUI is initialized
Hi,
the start_SSL() function fails only if the GUI is initialized with the
error
- "SSL connect attempt failed".
If you haven't entered the dialogue phase there should be no reason why
you would get this error.
From a preliminary search I figured that Net::SSLeay (the underlying to
IO::Socket::SSL) needs a blocking socket to work.
Does Win32::GUI set some form of continuous interrupts or signals that
prevent Net::SSLeay from working in blocking mode?
Once your application has entered the dialogue phase, it sleeps until an
event is triggered (such as a mouse click on a button). If you block on
a socket, the main app can't process new events so your application
freeze's. The solution is to spawn a separate thread to handle the
socket communications, while the main thread handles the GUI. To do
threading in Perl, you are going to need a version of 5.8.x (and I would
guess the later the better).
Cheers,
jez.
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