[MonoDevelop] Newbie question: Making a reference to a linux shared library

[Petit Eric]

2008/10/6 alanb <alan.battersby at ntlworld.com>:
>
> I am still not able to load the shared library. I have copied the shared
> library into the /bin/Debug directory of my main C# app and set the
> LD_LIBRARY_PATH to be an absolute address. See below I have tried all
> combinations of dll name in the DllImport statement including the full name
> and not just the link.
> <code>
> mono abtools.exe
> Exception in Gtk# callback delegate
>  Note: Applications can use GLib.ExceptionManager.UnhandledException to
> handle the exception.
> System.DllNotFoundException: libtest.so.1.0
>  at (wrapper managed-to-native) emcConnect.EmcConnection:tryNml ()
>  at MainWindow.OnAddActionActivated (System.Object sender, System.EventArgs
> e) [0x00000]
>  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr data) [0x00000]
>   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e,
> Boolean is_terminal)
>   at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr data)
>   at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
>   at Gtk.Application.gtk_main()
>   at Gtk.Application.gtk_main()
>   at Gtk.Application.Run()
>   at abtools.MainClass.Main(System.String[] args)
> alan at alan-laptop:/media/Data/CNC/abtools v1.5/abtools/bin/Debug$ echo
> $LD_LIBRARY_PATHLD_LIBRARY_PATH$:/media/Data/CNC/abtools
> v1.5/abtools/bin/Debug/
> alan at alan-laptop:/media/Data/CNC/abtools v1.5/abtools/bin/Debug$ ls
> abtools.exe          abwidgetlibrary.dll.mdb  GenTemplates.dll
> libtest.so.1.0
> abtools.exe.config   basic.dll                GenTemplates.dll.mdb
> OpenTK.dll
> abtools.exe.config~  basic.dll.mdb            GLWidget.dll
> OpenTK.dll.config
> abtools.exe.mdb      emcConnect.dll           libtest.so
> abwidgetlibrary.dll  emcConnect.dll.mdb       libtest.so.1
> </code>
> but I am still getting a not found exception. I am obviously missing
> something simple but cannot see what is wrong. Any more suggestions would be
> more than welcome.
can yu paste the C# code line where yu call the DLL, also have a look
at mine class, it can help you, perhap's :
http://cs-obexftp.svn.sourceforge.net/viewvc/cs-obexftp/trunk/Cs-ObexFtp/CObexFtpLib/Internal/NativeCode.cs?revision=163&view=markup&pathrev=200
>
> Alan
>
> Petit Eric wrote:
>>
>> 2008/10/6 alanb <alan.battersby at ntlworld.com>:
>>>
>>> I tried P/Invoke, I created a shared library, wrapped it in C# class and
>>> it
>>> all compiles ok. But when I try to execute one of the external functions
>>> I
>>> get an exception -  System.DllNotFoundException: libtest.so . As this is
>>> an
>>> experiment I do not want to place my library in /usr , /lib etc so I
>>> tried
>>> setting LD_LIBRARY_PATH in a shell but that doesnt seem to work for me. I
>>> am
>>> assuming that I need to set LD_LIBRARY_PATH in the shell created by
>>> monodevelops run command, so can someone tell me how to do this?
>> normaly yu can replace your dll call : libtest.so by libtest i folow
>> this way fro lib ported to Win 32 ex : libtest.so and libtest.dll
>> after , compile your prog with MD
>> open a shell (konsole for ex) and browse to the bin/Debug or Release
>> dir (depand how yu compile)
>> then : export LD_LIBRARY_PATH=LD_LIBRARY_PATH$:what yu need && mono
>> ./your.exe
>> also i think, yu can call your test lib with an absolute path or
>> relative to your compil directory
>>>
>>> Thanks
>>> Alan
>>>
>>>
>>> Petit Eric wrote:
>>>>
>>>> P/Invoke
>>>>
>>>>
>>>> 2008/10/6 alanb <alan.battersby at ntlworld.com>:
>>>>>
>>>>> I tried adding a shared library as a reference to my C# project but it
>>>>> wasn't
>>>>> recognized. So is there a way to do this? If it is  not possible
>>>>> directly
>>>>> how do you wrap a .so file as a .dll that would be recognized?
>>>>> --
>>>>> View this message in context:
>>>>> http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19835738.html
>>>>> Sent from the Mono - MonoDevelop IDE mailing list archive at
>>>>> Nabble.com.
>>>>>
>>>>> _______________________________________________
>>>>> Monodevelop-list mailing list
>>>>> Monodevelop-list at lists.ximian.com
>>>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Cordially.
>>>>
>>>> Small Eric Quotations of the days:
>>>> ---------------------------------------------------------------------------
>>>> If one day one reproaches you that your work is not a work of
>>>> professional, say you that:
>>>> Amateurs built the arch of Noah, and professionals the Titanic.
>>>> ---------------------------------------------------------------------------
>>>>
>>>> Few people are done for independence, it is the privilege of the
>>>> powerful
>>>> ones.
>>>> ---------------------------------------------------------------------------
>>>>
>>>> No key was wounded during the drafting of this message.
>>>> _______________________________________________
>>>> Monodevelop-list mailing list
>>>> Monodevelop-list at lists.ximian.com
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>>>>
>>>>
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19836211.html
>>> Sent from the Mono - MonoDevelop IDE mailing list archive at Nabble.com.
>>>
>>> _______________________________________________
>>> Monodevelop-list mailing list
>>> Monodevelop-list at lists.ximian.com
>>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>>
>>
>>
>>
>> --
>>
>> Cordially.
>>
>> Small Eric Quotations of the days:
>> ---------------------------------------------------------------------------
>> If one day one reproaches you that your work is not a work of
>> professional, say you that:
>> Amateurs built the arch of Noah, and professionals the Titanic.
>> ---------------------------------------------------------------------------
>>
>> Few people are done for independence, it is the privilege of the powerful
>> ones.
>> ---------------------------------------------------------------------------
>>
>> No key was wounded during the drafting of this message.
>> _______________________________________________
>> Monodevelop-list mailing list
>> Monodevelop-list at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>>
>>
>
> --
> View this message in context: http://www.nabble.com/Newbie-question%3A-Making-a-reference-to-a-linux-shared-library-tp19835738p19837320.html
> Sent from the Mono - MonoDevelop IDE mailing list archive at Nabble.com.
>
> _______________________________________________
> Monodevelop-list mailing list
> Monodevelop-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>



-- 

Cordially.

Small Eric Quotations of the days:
---------------------------------------------------------------------------
If one day one reproaches you that your work is not a work of
professional, say you that:
Amateurs built the arch of Noah, and professionals the Titanic.
---------------------------------------------------------------------------

Few people are done for independence, it is the privilege of the powerful ones.
---------------------------------------------------------------------------

No key was wounded during the drafting of this message.