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Date: Sat, 3 Jul 2010 09:53:50 -0400
Message-ID: <AANLkTimKZSHD-KI5FZezE6mTMN6fe0-AY-dWf08V5uKd@mail.gmail.com>
Subject: Re: Compiling and using apr_dbd_sqlite3
From: Sam Carleton <scarleton@miltonstreet.com>
To: "William A. Rowe Jr." <wrowe@rowe-clan.net>
Cc: dev@apr.apache.org
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On Sat, Jul 3, 2010 at 3:21 AM, William A. Rowe Jr. <wrowe@rowe-clan.net>wrote:

> On 7/2/2010 7:53 PM, Sam Carleton wrote:
> >
> > Do I need to compile the whole apr library, per the instructions on the
> > web site or should I be able to simply convert the apr_dbd_sqlite3.dsp
> > project to a Visual Studio 2008 project and compile it?
>
> Twofold question.  First, db providers should be independently compilable,
> so you are good in that regard.
>
> Second, for every free(), close(), fclose() and other non-Win32 call to the
> C API which corresponds to resource creation from within APR, you may
> expect
> a segfault since these sorts of records are constrained to a single flavor
> of the MSVCR library.  The httpd/apr distributed by the httpd project is
> still built on MSVCRT/VC6.
>

Why?  why why why?  I simply don't get it, the Apache server (and what I
have seen of APR) is some of the best written code I have seen.  I know
there are some truly amazing minds behind it.  So why is it still using a
compiler that is 10-years-old!  What is so outstanding about VC6 over any of
the newer, free version of Visual Studio compiler?  I simply don't
understand it, I am sure there is a reason for it but I simply am not seeing
the logic.


> I understand it's possible to build using the DDK libraries to target the
> same MSVCRT, in which case you should have no problems whatsoever.  If you
> build for a Studio 2008 SQLite/apr_dbd_sqlite module, then there may be
> issues if sqlite allocates memory, etc, under the assumption that the
> caller
> will then free those resources, and similarly the whole dbd interface.
>

Off and learn how to get VS2008 to compile against the same ancient runtime
that Apache is using.

Sam

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<div class=3D"gmail_quote">On Sat, Jul 3, 2010 at 3:21 AM, William A. Rowe =
Jr. <span dir=3D"ltr">&lt;<a href=3D"mailto:wrowe@rowe-clan.net">wrowe@rowe=
-clan.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); p=
adding-left: 1ex;">
<div class=3D"im">On 7/2/2010 7:53 PM, Sam Carleton wrote:<br>
&gt;<br>
&gt; Do I need to compile the whole apr library, per the instructions on th=
e<br>
&gt; web site or should I be able to simply convert the apr_dbd_sqlite3.dsp=
<br>
&gt; project to a Visual Studio 2008 project and compile it?<br>
<br>
</div>Twofold question. =C2=A0First, db providers should be independently c=
ompilable,<br>
so you are good in that regard.<br>
<br>
Second, for every free(), close(), fclose() and other non-Win32 call to the=
<br>
C API which corresponds to resource creation from within APR, you may expec=
t<br>
a segfault since these sorts of records are constrained to a single flavor<=
br>
of the MSVCR library. =C2=A0The httpd/apr distributed by the httpd project =
is<br>
still built on MSVCRT/VC6.<br></blockquote><div><br>Why?=C2=A0 why why why?=
=C2=A0 I simply don&#39;t get it, the Apache server (and what I
 have seen of APR) is some of the best written code I have seen.=C2=A0 I kn=
ow
 there are some truly amazing minds behind it.=C2=A0 So why is it still usi=
ng
 a compiler that is 10-years-old!=C2=A0 What is so outstanding about VC6 ov=
er
 any of the newer, free version of Visual Studio compiler?=C2=A0 I simply=
=20
don&#39;t understand it, I am sure there is a reason for it but I simply am=
=20
not seeing the logic.<br>=C2=A0</div><blockquote class=3D"gmail_quote" styl=
e=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); =
padding-left: 1ex;">
I understand it&#39;s possible to build using the DDK libraries to target t=
he<br>
same MSVCRT, in which case you should have no problems whatsoever. =C2=A0If=
 you<br>
build for a Studio 2008 SQLite/apr_dbd_sqlite module, then there may be<br>
issues if sqlite allocates memory, etc, under the assumption that the calle=
r<br>
will then free those resources, and similarly the whole dbd interface.<br>
</blockquote></div><br>
Off and learn how to get VS2008 to compile against the same ancient runtime=
 that Apache is using.<br>
<br>
Sam<br>

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