• Charles McAnany <mcanance rose-hulman.edu> Aug 18 2011
• Trass3r <un known.com> Aug 18 2011
• Trass3r <un known.com> Aug 18 2011
• Adam D. Ruppe <destructionator gmail.com> Aug 18 2011
• Kai Meyer <kai unixlords.com> Aug 18 2011
• Trass3r <un known.com> Aug 18 2011
• Trass3r <un known.com> Aug 18 2011
• maarten van damme <maartenvd1994 gmail.com> Aug 18 2011
• Trass3r <un known.com> Aug 19 2011

Charles McAnany <mcanance rose-hulman.edu> writes:

Hi, all. I'm trying to write some efficient code for a macro in vba using a
language
that I enjoy. I don't need any fancy operating system interaction, I just want
to
write
int foo(int arg){
   return arg; //actual computation a bit more involved.
}

Compile it to dll and call it with vba.

I looked at the dll documentation and I'm baffled by the time I get to the first
line: __gshared HINSTANCE g_hInst; and then it starts talking about
dll_process_attach. I don't want to attach processes, I want to compute an
integer.

Is there a simple way to make dlls, or is it going to be ugly to even write the
"Hello World" of dlls?
Cheers,
Charles

Trass3r <un known.com> writes:

 I looked at the dll documentation and I'm baffled by the time I get to  
 the first
 line: __gshared HINSTANCE g_hInst; and then it starts talking about
 dll_process_attach. I don't want to attach processes, I want to compute  
 an integer.


The Dllmain is needed so the D runtime is properly initialized.
Just copy the code http://www.d-programming-language.org/dll.html into a  
dllmain.d and put your actual code in other modules.
You don't need to do the EXPORTS shit in the .def file though, just use  
the export keyword.

Trass3r <un known.com> writes:

Example:
https://bitbucket.org/trass3r/matd/src/tip/examples/mmfile/

Adam D. Ruppe <destructionator gmail.com> writes:

We should make a mixin template DllMain that has a generic main.

import std.dll;

void myDllProc() { }

mixin DllMain!myDllProc;


I did this with my cgi.d and like it alot - the templated main saves
a lot of boilerplate.

Kai Meyer <kai unixlords.com> writes:

On 08/18/2011 01:32 PM, Trass3r wrote:
 Am 18.08.2011, 21:17 Uhr, schrieb Adam D. Ruppe
 <destructionator gmail.com>:
 We should make a mixin template DllMain that has a generic main.


 We should also have a -shared switch that transparently includes all of
 the boilerplate crap:
 particularly the .def file, maybe even a default DllMain if none exists.


This would be my vote. -shared will:
1) check if there is a DllMain defined at the end, and if not, sticks a 
generic one in there
2) check if there are any exported functions (via .def or export()), if 
not, export them all

That way, the OP's original simple 1 function d file compiles to a dll.

Same goes for the Linux side. Default constructor and destructors that 
initialize and destroy the D runtime if there aren't any defined at the 
end of the compilation.

-Kai Meyer

Trass3r <un known.com> writes:

Am 18.08.2011, 21:17 Uhr, schrieb Adam D. Ruppe  
<destructionator gmail.com>:
 We should make a mixin template DllMain that has a generic main.


We should also have a -shared switch that transparently includes all of  
the boilerplate crap:
particularly the .def file, maybe even a default DllMain if none exists.

Trass3r <un known.com> writes:

Am 18.08.2011, 21:42 Uhr, schrieb Kai Meyer <kai unixlords.com>:
 2) check if there are any exported functions (via .def or export()), if  
 not, export them all


That's insane. Larger projects have tons of functions and may only need to  
export a few.
The language includes the export keyword to export functions and people  
should use it.
dmd just needs to generate a .def file to make Optstink create a dll.

maarten van damme <maartenvd1994 gmail.com> writes:

--000e0cd29e4c5f4c3604aad27fd7
Content-Type: text/plain; charset=ISO-8859-1

"as for the linux side"
I though dmd was unable to generate shared libs on linux?

It would be cool to have a mixin "shared" that when compiled on windows
generates a windows dll and if compiler on linux generates a linux shared
lib :)

2011/8/18 Trass3r <un known.com>

 Am 18.08.2011, 21:42 Uhr, schrieb Kai Meyer <kai unixlords.com>:

  2) check if there are any exported functions (via .def or export()), if
 not, export them all


 That's insane. Larger projects have tons of functions and may only need to
 export a few.
 The language includes the export keyword to export functions and people
 should use it.
 dmd just needs to generate a .def file to make Optstink create a dll.


--000e0cd29e4c5f4c3604aad27fd7
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

&quot;as for the linux side&quot;<br>I though dmd was unable to generate sh=
ared libs on linux?<br><br>It would be cool to have a mixin &quot;shared&qu=
ot; that when compiled on windows generates a windows dll and if compiler o=
n linux generates a linux shared lib :)<br>
<br><div class=3D"gmail_quote">2011/8/18 Trass3r <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:un known.com">un known.com</a>&gt;</span><br><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pad=
ding-left:1ex;">
Am 18.08.2011, 21:42 Uhr, schrieb Kai Meyer &lt;<a href=3D"mailto:kai unixl=
ords.com" target=3D"_blank">kai unixlords.com</a>&gt;:<div class=3D"im"><br=


x #ccc solid;padding-left:1ex">
2) check if there are any exported functions (via .def or export()), if not=
, export them all<br>
</blockquote>
<br></div>
That&#39;s insane. Larger projects have tons of functions and may only need=
 to export a few.<br>
The language includes the export keyword to export functions and people sho=
uld use it.<br>
dmd just needs to generate a .def file to make Optstink create a dll.<br>
</blockquote></div><br>

--000e0cd29e4c5f4c3604aad27fd7--

Trass3r <un known.com> writes:

Am 19.08.2011, 04:29 Uhr, schrieb maarten van damme  
<maartenvd1994 gmail.com>:

 "as for the linux side"
 I though dmd was unable to generate shared libs on linux?


But GDC and LDC are.