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Re: Winsock gethostbyname() problem in NT4

From: Steinar Bang <sb@metis.no>
Date: 16 Sep 1999 09:57:28 +0200
To: www-lib@w3.org
Message-ID: <whlna71e6v.fsf@viffer.oslo.metis.no>
>>>>> "Raffaele Sena" <raff@nuvomedia.com>:

>     I didn't check the code, but you could try one of the following:

>     1) Register you handlers after calling HTEventInit()

This is what I did.  However, the solution is less elegant than I
could have wished.

I've organized the libwww/Qt wrappers as two classes that have
singleton instances created as automatic variables in main(), and the
order they're created in determines the reverse order they're
destroyed in.

The LibwwwNotify class interfaces libwww events and timers to their Qt
equivalents.  The W3CLibwww class wraps libwww initialization and
shutdown.  The LibwwwNotify instance has to be created before the
W3CLibwww instance, because the latters destructor will try to
unregister any timers still left, and this crashes if the LibwwwNotify 
has gone away.

What I did was add a registerHandlers() method to LibwwwNotify, and
call it after the W3CLibwww was created to re-register the
LibwwwNotify register/uregister functions.

>     2) Don't call HTEventInit(), just call WSAStartup (but there may be
>         other things that HTEventInit need to initialize).

My thoughts exactly.

>     3) If you can avoid the call to HTEventInit, you may check if Qt has
>         a function to initialize the socket/network system, so you can avoid
>         the explicit call to WSAStartup.

Hm... this is an idea.  I will investigate further.

Received on Thursday, 16 September 1999 03:57:33 UTC

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