I thought that runtime loading of dynamic libraries was implemented on Linux. But the code says otherwise.

I'm looking at the master branch of https://github.com/D-Programming-Language/druntime.git

When I look at druntime/src/rt/dmain2.d, commit 45a0838a7108850a20da3be5850976024d91f5ed from July 15 2013, the following appears:

extern (C) void* rt_loadLibrary(in char[] name)
{
    version (Windows)
    {
      // ... omit windows implementation

    else version (Posix)
    {
        throw new Exception("rt_loadLibrary not yet implemented on Posix.");
    }
}

Is the implementation hiding on a different branch perhaps?  Why were folks saying it was done?

Thanks.

J

On Friday, July 26, 2013 21:42:57 J wrote:
> Is the implementation hiding on a different branch perhaps? Why were folks saying it was done?

No one said that it was done. We've only just added support for creating shared libraries to link in with the most recent release, so there's a good chance that more work will have to be done there. Much as it may be related, loading a shared library at runtime is a whole other ball game, and there definitely is a lot of work to be done there (particularly with regards to the GC). We're starting to get proper shared library support, but we definitely aren't done yet. We didn't even put anything about shared library support in the 2.063 changelog because of how new it was.

- Jonathan M Davis

On Friday, 26 July 2013 at 19:42:59 UTC, J wrote:
> I thought that runtime loading of dynamic libraries was implemented on Linux.

If you need load a library with C interface, You can use something like http://hg.m1xa.com/codewithd/src (see simple.f95 and symload.d)

On Friday, 26 July 2013 at 20:21:43 UTC, Jonathan M Davis wrote:
> On Friday, July 26, 2013 21:42:57 J wrote:
>> Is the implementation hiding on a different branch perhaps? Why
>> were folks saying it was done?
>
> No one said that it was done. We've only just added support for creating
> shared libraries to link in with the most recent release, so there's a good
> chance that more work will have to be done there. Much as it may be related,
> loading a shared library at runtime is a whole other ball game, and there
> definitely is a lot of work to be done there (particularly with regards to the
> GC). We're starting to get proper shared library support, but we definitely
> aren't done yet. We didn't even put anything about shared library support in
> the 2.063 changelog because of how new it was.
>
> - Jonathan M Davis

I got to slide 12 of http://dconf.org/talks/nowak.pdf Martin Nowak's DConf2013 talk, and it seemed to indicate that Runtime.loadLibary() support was "currently" available; perhaps that meant only on Windows.

Is there an open ticket I can follow the know how the Linux progress is coming?

Thanks.

J

Thanks Michael.

On Friday, 26 July 2013 at 20:46:12 UTC, Michael wrote:
> On Friday, 26 July 2013 at 19:42:59 UTC, J wrote:
>> I thought that runtime loading of dynamic libraries was implemented on Linux.
>
> If you need load a library with C interface, You can use something like http://hg.m1xa.com/codewithd/src (see simple.f95 and symload.d)

Nobody is working on runtime loading of shared libaries for linux? Really??

On Friday, 26 July 2013 at 22:21:48 UTC, J wrote:
> Is there an open ticket I can follow the know how the Linux progress is coming?

On Tuesday, 30 July 2013 at 15:27:17 UTC, J wrote:
> Nobody is working on runtime loading of shared libaries for linux? Really??
>
> On Friday, 26 July 2013 at 22:21:48 UTC, J wrote:
>> Is there an open ticket I can follow the know how the Linux progress is coming?

It's top priority, but I don't know of any place that you can follow development. You could check here: https://github.com/D-Programming-Language.

On Tuesday, 30 July 2013 at 15:27:17 UTC, J wrote:
> Nobody is working on runtime loading of shared libaries for linux? Really??
>
> On Friday, 26 July 2013 at 22:21:48 UTC, J wrote:
>> Is there an open ticket I can follow the know how the Linux progress is coming?

It's a limited team of people who have many other commitments. You can lobby for it though if you want though through various channels.

That said, someone probably is working on it somewhere, although perhaps not hugely actively, I don't know.

On 07/30/2013 05:27 PM, J wrote:
> Nobody is working on runtime loading of shared libaries for linux? Really??

I am working on the implementation and it's my top priority but I'm currently pretty short on time. I will be able to progress mid to end of august.