[MonoDevelop] Newbie question: Making a reference to a linux shared library
alanb
alan.battersby at ntlworld.com
Mon Oct 6 09:47:16 EDT 2008
The C# wrapper code is
namespace emcConnect
{
public class EmcConnection
{
[DllImport ("libtest")]
public static extern int tryNML();
....
I dont have the other stuff such as charset etc is that important? This
class is placed in its own subproject will that make a difference?
Alan
Petit Eric wrote:
>
> 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
>>>>> 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-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.
> _______________________________________________
> Monodevelop-list mailing list
> Monodevelop-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>
>
--
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